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arxiv: 2606.25378 · v1 · pith:3OBD7IRWnew · submitted 2026-06-24 · ⚛️ physics.app-ph · cond-mat.mtrl-sci· quant-ph

Wide-field NV magnetometry under simultaneous high-pressure and high-temperature conditions

Masahiro Ohkuma , Eikichi Kimura , Shumpei Ohyama , Miu Tezuka , Ryo Matsumoto , Shinobu Onoda , Yoshihiko Takano , Shintaro Azuma
show 2 more authors
Kenji Ohta Keigo Arai
This is my paper

Pith reviewed 2026-06-25 19:40 UTC · model grok-4.3

classification ⚛️ physics.app-ph cond-mat.mtrl-sciquant-ph
keywords NV centersODMRmagnetometryhigh pressurehigh temperaturewide-field imagingstray magnetic fieldpressure cell
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The pith

NV centers allow wide-field ODMR and magnetic imaging at 7 GPa and 500 K.

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

The paper establishes that optically detected magnetic resonance using nitrogen-vacancy centers remains functional under simultaneous high pressure and high temperature. A sympathetic reader would care because prior NV magnetometry had been limited to milder conditions, leaving extreme environments inaccessible for spatially resolved magnetic studies. The work shows ODMR signals can still be observed at 5 GPa and 500 K, then applies the technique to produce wide-field images of the stray magnetic field from an iron sample at 7 GPa and 500 K viewed through the pressure cell. This demonstrates that NV spin readout can operate without prohibitive signal loss in combined extreme conditions.

Core claim

We demonstrate wide-field optically detected magnetic resonance (ODMR) under simultaneous high-pressure and high-temperature conditions using nitrogen-vacancy (NV) centers. We show that ODMR can be observed at 5 GPa and 500 K, demonstrating the feasibility of NV spin readout under such combined extreme conditions. We further perform wide-field ODMR of iron at 7 GPa and 500 K, where the stray magnetic field from the sample is spatially visualized through the pressure cell. These results establish NV-center magnetometry as a promising platform for imaging magnetic phenomena in materials under high-pressure and high-temperature environments.

What carries the argument

Optically detected magnetic resonance of NV centers, using spin-dependent fluorescence to report local magnetic fields while the centers remain inside or viewable through a pressure cell at elevated temperature.

If this is right

  • ODMR signals remain observable at 5 GPa and 500 K.
  • Wide-field imaging of stray magnetic fields becomes possible at 7 GPa and 500 K.
  • NV centers can serve as sensors for magnetic phenomena inside pressure cells at 500 K.
  • Materials such as iron can be examined for their magnetic response under combined high pressure and temperature.

Where Pith is reading between the lines

These are editorial extensions of the paper, not claims the author makes directly.

  • The approach could enable in-situ mapping of magnetic phase changes during compression and heating of samples.
  • Similar setups might be adapted to study magnetic behavior under conditions that mimic planetary interiors.
  • The technique opens a route to combine NV imaging with other high-pressure probes such as electrical transport measurements.

Load-bearing premise

Optical access, microwave delivery, and NV-center spin coherence remain sufficient for detectable ODMR signals inside the pressure cell at 5-7 GPa and 500 K without prohibitive background or signal loss.

What would settle it

No ODMR resonance contrast or detectable fluorescence signal appears when the same NV setup is tested at 5 GPa and 500 K.

Figures

Figures reproduced from arXiv: 2606.25378 by Eikichi Kimura, Keigo Arai, Kenji Ohta, Masahiro Ohkuma, Miu Tezuka, Ryo Matsumoto, Shinobu Onoda, Shintaro Azuma, Shumpei Ohyama, Yoshihiko Takano.

Figure 1
Figure 1. Figure 1: FIG. 1. Experimental configurations for ODMR measure [PITH_FULL_IMAGE:figures/full_fig_p001_1.png] view at source ↗
Figure 2
Figure 2. Figure 2: FIG. 2. (a) CW-ODMR spectra of NV centers measured [PITH_FULL_IMAGE:figures/full_fig_p003_2.png] view at source ↗
Figure 3
Figure 3. Figure 3: FIG. 3. ODMR measurements under simultaneous high [PITH_FULL_IMAGE:figures/full_fig_p004_3.png] view at source ↗
Figure 4
Figure 4. Figure 4: FIG. 4. Wide-field ODMR at [PITH_FULL_IMAGE:figures/full_fig_p005_4.png] view at source ↗
Figure 6
Figure 6. Figure 6: FIG. 6. Temperature dependence of ODMR spectral param [PITH_FULL_IMAGE:figures/full_fig_p005_6.png] view at source ↗
read the original abstract

We demonstrate wide-field optically detected magnetic resonance (ODMR) under simultaneous high-pressure and high-temperature conditions using nitrogen-vacancy (NV) centers. Although NV-center magnetometry has been widely used for spatially resolved magnetic-field imaging, its application to extreme environments combining pressure and temperature remains challenging. In this work, we show that ODMR can be observed at 5 GPa and 500 K, demonstrating the feasibility of NV spin readout under such combined extreme conditions. We further perform wide-field ODMR of iron at 7 GPa and 500 K, where the stray magnetic field from the sample is spatially visualized through the pressure cell. These results establish NV-center magnetometry as a promising platform for imaging magnetic phenomena in materials under high-pressure and high-temperature environments.

Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, simulated authors' rebuttal, and a circularity audit. Tearing a paper down is the easy half of reading it; the pith above is the substance, this is the friction.

Referee Report

1 major / 2 minor

Summary. The manuscript demonstrates wide-field optically detected magnetic resonance (ODMR) using NV centers under simultaneous high-pressure and high-temperature conditions. It reports observation of ODMR signals at 5 GPa and 500 K to establish feasibility of NV spin readout, followed by wide-field ODMR imaging of stray magnetic fields from an iron sample at 7 GPa and 500 K through the pressure cell.

Significance. If the experimental results hold with adequate quantitative support, this work is significant because it extends NV-center magnetometry—a technique valued for its spatial resolution and sensitivity—to combined extreme P-T environments relevant to geophysics and high-pressure condensed-matter studies. The explicit demonstration of both detectable ODMR and spatially resolved imaging under these conditions, despite the technical hurdles of optical/MW access in a diamond anvil cell, is a concrete strength of the paper.

major comments (1)
  1. [Results section (and abstract)] The central experimental claim (ODMR detection at 5 GPa/500 K and imaging at 7 GPa/500 K) is load-bearing on the assumption that optical access, MW delivery, and NV coherence remain adequate; however, the manuscript provides no quantitative metrics (contrast, linewidth, SNR, or error bars on the reported pressures/temperatures) in the results to allow verification of this assumption.
minor comments (2)
  1. [Methods] The pressure calibration procedure at elevated temperature is not described in sufficient detail for reproducibility.
  2. [Figure captions] Figure captions for the wide-field images should explicitly state the spatial resolution and any background subtraction applied.

Simulated Author's Rebuttal

1 responses · 0 unresolved

We thank the referee for their positive evaluation of the significance of our work and for the constructive comment on strengthening the quantitative support for our experimental claims. We address the point below and will revise the manuscript accordingly.

read point-by-point responses

  1. Referee: [Results section (and abstract)] The central experimental claim (ODMR detection at 5 GPa/500 K and imaging at 7 GPa/500 K) is load-bearing on the assumption that optical access, MW delivery, and NV coherence remain adequate; however, the manuscript provides no quantitative metrics (contrast, linewidth, SNR, or error bars on the reported pressures/temperatures) in the results to allow verification of this assumption.

    Authors: We agree that quantitative metrics are necessary to allow independent verification of the ODMR signals and imaging results under the stated conditions. In the revised manuscript, we will add explicit values for ODMR contrast, linewidth, and SNR extracted from the spectra at 5 GPa and 500 K. We will also include uncertainty estimates (error bars) on the reported pressures and temperatures, derived from our ruby fluorescence and thermocouple calibrations. These additions will appear in the Results section with appropriate discussion and will be referenced in the abstract where the central claims are stated. revision: yes

Circularity Check

0 steps flagged

No significant circularity; pure experimental demonstration

full rationale

This is an experimental feasibility paper whose central claims consist of direct observations of ODMR signals at 5 GPa/500 K and wide-field imaging at 7 GPa/500 K. No equations, derivations, fitted parameters, predictions, or ansatzes appear in the abstract or claim structure. The weakest assumption (sufficient optical/MW access and coherence) is precisely what the reported raw spectra and images are intended to establish, with no internal reduction to self-citation or self-definition. The work is therefore self-contained against external benchmarks and receives the default non-circularity score.

Axiom & Free-Parameter Ledger

0 free parameters · 1 axioms · 0 invented entities

Experimental demonstration; no free parameters or invented entities are introduced. The central claim rests on the domain assumption that NV centers function under the stated conditions.

axioms (1)
  • domain assumption NV centers retain sufficient optical and spin properties for detectable ODMR at 5 GPa and 500 K inside a pressure cell
    The feasibility statement in the abstract depends on this holding.

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Reference graph

Works this paper leans on

59 extracted references

  1. [1]

    Shen and H

    G. Shen and H. K. Mao, High-pressure studies with x- rays using diamond anvil cells, Rep. Prog. Phys.80, 016101 (2016)

    2016

  2. [2]

    Mao, X.-J

    H.-K. Mao, X.-J. Chen, Y. Ding, B. Li, and L. Wang, Solids, liquids, and gases under high pressure, Rev. Mod. Phys.90, 015007 (2018)

    2018

  3. [3]

    Yamanaka, Silicon clathrates and carbon analogs: High pressure synthesis, structure, and superconductiv- ity, Dalton Trans.39, 1901 (2010)

    S. Yamanaka, Silicon clathrates and carbon analogs: High pressure synthesis, structure, and superconductiv- ity, Dalton Trans.39, 1901 (2010)

    1901

  4. [4]

    Azuma, H

    M. Azuma, H. Hojo, K. Oka, H. Yamamoto, K. Shimizu, K. Shigematsu, and Y. Sakai, Functional Transition Metal Perovskite Oxides with 6s2 Lone Pair Activity Stabilized by High-Pressure Synthesis, Annual Review of Materials Research51, 329 (2021)

    2021

  5. [5]

    R. M. Hazen and L. W. Finger, High-temperature diamond-anvil pressure cell for single-crystal studies, Rev. Sci. Instrum.52, 75 (1981)

    1981

  6. [6]

    Liu and W

    L.-G. Liu and W. A. Bassett, The melting of iron up to 200 kbar, Journal of Geophysical Research (1896-1977) 80, 3777 (1975)

    1977

  7. [7]

    Ming and W

    L.-c. Ming and W. A. Bassett, Laser heating in the di- amond anvil press up to 2000 ◦C sustained and 3000 ◦C pulsed at pressures up to 260 kilobars, Rev. Sci. Instrum. 45, 1115 (1974)

    2000

  8. [8]

    Salamat, R

    A. Salamat, R. A. Fischer, R. Briggs, M. I. McMahon, and S. Petitgirard, In Situ synchrotron X-ray diffraction in the laser-heated diamond anvil cell: Melting phenom- ena and synthesis of new materials, Coordination Chem- istry Reviews Following Chemical Structures Using Syn- chrotron Radiation,277–278, 15 (2014)

    2014

  9. [9]

    J.-F. Lin, M. Santoro, V. V. Struzhkin, H.-k. Mao, and R. J. Hemley, In situ high pressure-temperature Raman spectroscopy technique with laser-heated diamond anvil cells, Rev. Sci. Instrum.75, 3302 (2004)

    2004

  10. [10]

    Kantor, C

    I. Kantor, C. Marini, O. Mathon, and S. Pascarelli, A laser heating facility for energy-dispersive X-ray absorp- tion spectroscopy, Rev. Sci. Instrum.89, 013111 (2018)

    2018

  11. [11]

    Yousuf, P

    M. Yousuf, P. Ch. Sahu, and K. G. Rajan, High-pressure and high-temperature electrical resistivity of ferromag- netic transition metals: Nickel and iron, Phys. Rev. B 7 34, 8086 (1986)

    1986

  12. [12]

    K. Ohta, S. Suehiro, S. I. Kawaguchi, Y. Okuda, T. Wakamatsu, K. Hirose, Y. Ohishi, M. Kodama, S. Hi- rai, and S. Azuma, Measuring the Electrical Resistivity of Liquid Iron to 1.4 Mbar, Phys. Rev. Lett.130, 266301 (2023)

    2023

  13. [13]

    D. N. Pipkorn, C. K. Edge, P. Debrunner, G. De Pasquali, H. G. Drickamer, and H. Frauen- felder, M\”ossbauer Effect in Iron under Very High Pressure, Phys. Rev.135, A1604 (1964)

    1964

  14. [14]

    A. P. Kantor, S. D. Jacobsen, I. Y. Kantor, L. S. Dubrovinsky, C. A. McCammon, H. J. Reichmann, and I. N. Goncharenko, Pressure-Induced Magnetization in FeO: Evidence from Elasticity and M\”ossbauer Spec- troscopy, Phys. Rev. Lett.93, 215502 (2004)

    2004

  15. [15]

    X. Li, E. Bykova, D. Vasiukov, G. Aprilis, S. Chariton, V. Cerantola, M. Bykov, S. M¨ uller, A. Pakhomova, F. I. Akbar, E. Mukhina, I. Kantor, K. Glazyrin, D. Com- boni, A. I. Chumakov, C. McCammon, L. Dubrovinsky, C. Sanchez-Valle, and I. Kupenko, Monoclinic distortion and magnetic transitions in FeO under pressure and tem- perature, Commun Phys7, 305 (2024)

    2024

  16. [16]

    Mathon, F

    O. Mathon, F. Baudelet, J. P. Iti´ e, A. Po- lian, M. d’Astuto, J. C. Chervin, and S. Pas- carelli, Dynamics of the Magnetic and Structural $\ensuremath{\alpha}\mathrm{\text{\ensuremath{- }}}\ensuremath{\epsilon}$Phase Transition in Iron, Phys. Rev. Lett.93, 255503 (2004)

    2004

  17. [17]

    Dewaele and L

    A. Dewaele and L. Nataf, Magnetic phase diagram of iron at high pressure and temperature, Phys. Rev. B106, 014104 (2022)

    2022

  18. [18]

    T. E. Cranshaw, M¨ ossbauer spectroscopy, J. Phys. E: Sci. Instrum.7, 497 (1974)

    1974

  19. [19]

    Mathon, F

    O. Mathon, F. Baudelet, J.-P. Iti´ e, S. Pasternak, A. Po- lian, and S. Pascarelli, XMCD under pressure at the Fe K edge on the energy-dispersive beamline of the ESRF, J Synchrotron Rad11, 423 (2004)

    2004

  20. [20]

    Haskel, Y

    D. Haskel, Y. C. Tseng, J. C. Lang, and S. Sinogeikin, In- strument for x-ray magnetic circular dichroism measure- ments at high pressures, Rev. Sci. Instrum.78, 083904 (2007)

    2007

  21. [21]

    Mito and M

    M. Mito and M. Hamada, Magnetization measurements using SQUID with diamond anvil cells under extremely high pressure, Appl. Phys. Rev.12, 031310 (2025)

    2025

  22. [22]

    Jelezko, T

    F. Jelezko, T. Gaebel, I. Popa, A. Gruber, and J. Wrachtrup, Observation of Coherent Oscillations in a Single Electron Spin, Phys. Rev. Lett.92, 076401 (2004)

    2004

  23. [23]

    Gaebel, M

    T. Gaebel, M. Domhan, I. Popa, C. Wittmann, P. Neu- mann, F. Jelezko, J. R. Rabeau, N. Stavrias, A. D. Greentree, S. Prawer, J. Meijer, J. Twamley, P. R. Hem- mer, and J. Wrachtrup, Room-temperature coherent cou- pling of single spins in diamond, Nature Phys2, 408 (2006)

    2006

  24. [24]

    Jelezko, T

    F. Jelezko, T. Gaebel, I. Popa, M. Domhan, A. Gruber, and J. Wrachtrup, Observation of Coherent Oscillation of a Single Nuclear Spin and Realization of a Two-Qubit Conditional Quantum Gate, Phys. Rev. Lett.93, 130501 (2004)

    2004

  25. [25]

    Hanson, F

    R. Hanson, F. M. Mendoza, R. J. Epstein, and D. D. Awschalom, Polarization and Readout of Coupled Single Spins in Diamond, Phys. Rev. Lett.97, 087601 (2006)

    2006

  26. [26]

    M. V. G. Dutt, L. Childress, L. Jiang, E. Togan, J. Maze, F. Jelezko, A. S. Zibrov, P. R. Hemmer, and M. D. Lukin, Quantum Register Based on Individual Electronic and Nuclear Spin Qubits in Diamond, Science316, 1312 (2007)

    2007

  27. [27]

    J. M. Taylor, P. Cappellaro, L. Childress, L. Jiang, D. Budker, P. R. Hemmer, A. Yacoby, R. Walsworth, and M. D. Lukin, High-sensitivity diamond magnetome- ter with nanoscale resolution, Nature Phys.4, 810 (2008)

    2008

  28. [28]

    C. L. Degen, Scanning magnetic field microscope with a diamond single-spin sensor, Applied Physics Letters92, 243111 (2008)

    2008

  29. [29]

    Balasubramanian, I

    G. Balasubramanian, I. Y. Chan, R. Kolesov, M. Al- Hmoud, J. Tisler, C. Shin, C. Kim, A. Wojcik, P. R. Hem- mer, A. Krueger, T. Hanke, A. Leitenstorfer, R. Brats- chitsch, F. Jelezko, and J. Wrachtrup, Nanoscale imaging magnetometry with diamond spins under ambient condi- tions, Nature455, 648 (2008)

    2008

  30. [30]

    J. R. Maze, P. L. Stanwix, J. S. Hodges, S. Hong, J. M. Taylor, P. Cappellaro, L. Jiang, M. V. G. Dutt, E. Togan, A. S. Zibrov, A. Yacoby, R. L. Walsworth, and M. D. Lukin, Nanoscale magnetic sensing with an individual electronic spin in diamond, Nature455, 644 (2008)

    2008

  31. [31]

    V. M. Acosta, E. Bauch, M. P. Ledbetter, A. Waxman, L.-S. Bouchard, and D. Budker, Temperature Depen- dence of the Nitrogen-Vacancy Magnetic Resonance in Diamond, Phys. Rev. Lett.104, 070801 (2010)

    2010

  32. [32]

    Dolde, H

    F. Dolde, H. Fedder, M. W. Doherty, T. N¨ obauer, F. Rempp, G. Balasubramanian, T. Wolf, F. Reinhard, L. C. L. Hollenberg, F. Jelezko, and J. Wrachtrup, Electric-field sensing using single diamond spins, Nature Phys7, 459 (2011)

    2011

  33. [33]

    Kucsko, P

    G. Kucsko, P. C. Maurer, N. Y. Yao, M. Kubo, H. J. Noh, P. K. Lo, H. Park, and M. D. Lukin, Nanometre- scale thermometry in a living cell, Nature500, 54 (2013)

    2013

  34. [34]

    Le Sage, K

    D. Le Sage, K. Arai, D. R. Glenn, S. J. DeVience, L. M. Pham, L. Rahn-Lee, M. D. Lukin, A. Yacoby, A. Komeili, and R. L. Walsworth, Optical magnetic imaging of living cells, Nature496, 486 (2013)

    2013

  35. [35]

    M. W. Doherty, N. B. Manson, P. Delaney, F. Jelezko, J. Wrachtrup, and L. C. L. Hollenberg, The nitrogen- vacancy colour centre in diamond, Physics Reports The Nitrogen-Vacancy Colour Centre in Diamond,528, 1 (2013)

    2013

  36. [36]

    M. W. Doherty, V. V. Struzhkin, D. A. Simpson, L. P. McGuinness, Y. Meng, A. Stacey, T. J. Karle, R. J. Hem- ley, N. B. Manson, L. C. L. Hollenberg, and S. Prawer, Electronic properties and metrology applications of the diamond NV − center under pressure, Phys. Rev. Lett. 112, 047601 (2014)

    2014

  37. [37]

    D. A. Broadway, B. C. Johnson, M. S. J. Barson, S. E. Lillie, N. Dontschuk, D. J. McCloskey, A. Tsai, T. Ter- aji, D. A. Simpson, A. Stacey, J. C. McCallum, J. E. Bradby, M. W. Doherty, L. C. L. Hollenberg, and J.-P. Tetienne, Microscopic Imaging of the Stress Tensor in Di- amond Using in Situ Quantum Sensors, Nano Lett.19, 4543 (2019)

    2019

  38. [38]

    K. O. Ho, M. Y. Leung, W. Wang, J. Xie, K. Y. Yip, J. Wu, S. K. Goh, A. Denisenko, J. Wrachtrup, and S. Yang, Spectroscopic Study of N-$V$Sensors in Diamond-Based High-Pressure Devices, Phys. Rev. Appl. 19, 044091 (2023)

    2023

  39. [39]

    D. M. Toyli, D. J. Christle, A. Alkauskas, B. B. Buck- ley, C. G. Van de Walle, and D. D. Awschalom, Mea- surement and Control of Single Nitrogen-Vacancy Center Spins above 600 K, Phys. Rev. X2, 031001 (2012). 8

    2012

  40. [40]

    G.-Q. Liu, X. Feng, N. Wang, Q. Li, and R.-B. Liu, Co- herent quantum control of nitrogen-vacancy center spins near 1000 Kelvin, Nat. Commun.10, 1344 (2019)

    2019

  41. [41]

    Fan, S.-W

    J.-W. Fan, S.-W. Guo, C. Lin, N. Wang, G.-Q. Liu, Q. Li, and R.-B. Liu, Quantum coherence control at tempera- tures up to 1400 K, Nano Lett.24, 14806 (2024)

    2024

  42. [42]

    Hsieh, P

    S. Hsieh, P. Bhattacharyya, C. Zu, T. Mittiga, T. J. Smart, F. Machado, B. Kobrin, T. O. H¨ ohn, N. Z. Rui, M. Kamrani, S. Chatterjee, S. Choi, M. Zaletel, V. V. Struzhkin, J. E. Moore, V. I. Levitas, R. Jeanloz, and N. Y. Yao, Imaging stress and magnetism at high pres- sures using a nanoscale quantum sensor, Science366, 1349 (2019)

    2019

  43. [43]

    Lesik, T

    M. Lesik, T. Plisson, L. Toraille, J. Renaud, F. Oc- celli, M. Schmidt, O. Salord, A. Delobbe, T. Debuiss- chert, L. Rondin, P. Loubeyre, and J.-F. Roch, Magnetic measurements on micrometer-sized samples under high pressure using designed NV centers, Science366, 1359 (2019)

    2019

  44. [44]

    K. Y. Yip, K. O. Ho, K. Y. Yu, Y. Chen, W. Zhang, S. Kasahara, Y. Mizukami, T. Shibauchi, Y. Matsuda, S. K. Goh, and S. Yang, Measuring magnetic field texture in correlated electron systems under extreme conditions, Science366, 1355 (2019)

    2019

  45. [45]

    Bhattacharyya, W

    P. Bhattacharyya, W. Chen, X. Huang, S. Chatter- jee, B. Huang, B. Kobrin, Y. Lyu, T. J. Smart, M. Block, E. Wang, Z. Wang, W. Wu, S. Hsieh, H. Ma, S. Mandyam, B. Chen, E. Davis, Z. M. Geballe, C. Zu, V. Struzhkin, R. Jeanloz, J. E. Moore, T. Cui, G. Galli, B. I. Halperin, C. R. Laumann, and N. Y. Yao, Imag- ing the Meissner effect in hydride superconduct...

    2024

  46. [46]

    M. Wang, Y. Wang, Z. Liu, G. Xu, B. Yang, P. Yu, H. Sun, X. Ye, J. Zhou, A. F. Goncharov, Y. Wang, and J. Du, Imaging magnetic transition of magnetite to megabar pressures using quantum sensors in diamond anvil cell, Nat. Commun.15, 8843 (2024)

    2024

  47. [47]

    J. F. Ziegler, M. D. Ziegler, and J. P. Biersack, SRIM – the stopping and range of ions in matter (2010), Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms268, 1818 (2010)

    2010

  48. [48]

    Takano, M

    Y. Takano, M. Nagao, I. Sakaguchi, M. Tachiki, T. Hatano, K. Kobayashi, H. Umezawa, and H. Kawarada, Superconductivity in diamond thin films well above liquid helium temperature, Applied Physics Letters85, 2851 (2004)

    2004

  49. [49]

    Matsumoto, Y

    R. Matsumoto, Y. Sasama, M. Fujioka, T. Irifune, M. Tanaka, T. Yamaguchi, H. Takeya, and Y. Takano, Note: Novel diamond anvil cell for electrical measure- ments using boron-doped metallic diamond electrodes, Review of Scientific Instruments87, 076103 (2016)

    2016

  50. [50]

    Matsumoto, S

    R. Matsumoto, S. Yamamoto, S. Adachi, T. Sakai, T. Ir- ifune, and Y. Takano, Diamond anvil cell with boron- doped diamond heater for high-pressure synthesis and in situ transport measurements, Applied Physics Letters 119, 053502 (2021)

    2021

  51. [51]

    Ohkuma, E

    M. Ohkuma, E. Kimura, R. Matsumoto, S. Ohyama, S. Tsuchiya, H. Lim, Y. S. Lee, J. Lee, Y. Takano, and K. Arai, Coherent control of solid-state defect spins via patterned boron-doped diamond circuit (2024), arXiv:2412.15586 [physics]

    arXiv 2024

  52. [52]

    Y. Wei, Q. Zhou, C. Zhang, L. Li, X. Li, and F. Li, Flu- orescence pressure sensors: Calibration of ruby, Sm2+: SrB4O7, and Sm3+: YAG to 55 GPa and 850 K, Journal of Applied Physics135, 105902 (2024)

    2024

  53. [53]

    D. Mai, C. Zhong, Z. Wang, H. Wang, X. Sun, R. Dai, Z. Wang, and Z. Zhang, Megabar pressure sensing and magnetic phase imaging by [111]-oriented nitrogen- vacancy centers in diamond, J. Appl. Phys.138, 045901 (2025)

    2025

  54. [54]

    M. W. Doherty, V. M. Acosta, A. Jarmola, M. S. J. Bar- son, N. B. Manson, D. Budker, and L. C. L. Hollenberg, Temperature shifts of the resonances of the NV − center in diamond, Phys. Rev. B90, 041201 (2014)

    2014

  55. [55]

    Iv´ ady, T

    V. Iv´ ady, T. Simon, J. R. Maze, I. A. Abrikosov, and A. Gali, Pressure and temperature dependence of the zero-field splitting in the ground state of NV centers in di- amond: A first-principles study, Phys. Rev. B90, 235205 (2014)

    2014

  56. [56]

    H. Tang, A. R. Barr, G. Wang, P. Cappellaro, and J. Li, First-Principles Calculation of the Temperature- Dependent Transition Energies in Spin Defects, J. Phys. Chem. Lett.14, 3266 (2023)

    2023

  57. [57]

    M. C. Cambria, G. Thiering, A. Norambuena, H. T. Di- nani, A. Gardill, I. Kemeny, V. Lordi, ´A. Gali, J. R. Maze, and S. Kolkowitz, Physically motivated analytical expression for the temperature dependence of the zero- field splitting of the nitrogen-vacancy center in diamond, Phys. Rev. B108, L180102 (2023)

    2023

  58. [58]

    Akahama and H

    Y. Akahama and H. Kawamura, High-pressure Raman spectroscopy of diamond anvils to 250GPa: Method for pressure determination in the multimegabar pressure range, Journal of Applied Physics96, 3748 (2004)

    2004

  59. [59]

    Huang, S

    B. Huang, S. V. Mandyam, W. Wu, B. Kobrin, P. Bhat- tacharyya, Y. Jin, B. Chen, M. Block, E. Wang, Z. Wang, S. Hsieh, C. Zu, C. R. Laumann, N. Y. Yao, and G. Galli, Elucidating the Inter-system Crossing of the Nitrogen-Vacancy Center up to Megabar Pressures (2026), arXiv:2511.20750 [quant-ph]

    arXiv 2026