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Manfred Helm

Identifiers

  • name variant Manfred Helm 0.60 · backfill

Papers (41)

  1. Hole compensation effect in III-Mn-V dilute ferromagnetic semiconductors cond-mat.mtrl-sci · 2019 · author #5
  2. Superconductivity in single-crystalline, aluminum- and gallium-hyperdoped germanium cond-mat.mtrl-sci · 2019 · author #12
  3. Strain and Band-Gap Engineering in Ge-Sn Alloys via P Doping cond-mat.mtrl-sci · 2019 · author #21
  4. Epitaxial Mn5Ge3 (100) layer on Ge(100) substrates obtained by flash lamp annealing cond-mat.mtrl-sci · 2018 · author #8
  5. Carrier dynamics in graphene: ultrafast many-particle phenomena cond-mat.mes-hall · 2018 · author #12
  6. Defect-induced exchange bias in a single SrRuO3 layer cond-mat.mtrl-sci · 2018 · author #11
  7. Non-thermal nature of photo-induced insulator-to-metal transition in NbO$_2$ cond-mat.str-el · 2018 · author #5
  8. Nematicity of correlated systems driven by anisotropic chemical phase separation cond-mat.mtrl-sci · 2018 · author #12
  9. Tunable disorder and localization in the rare-earth nickelates cond-mat.mtrl-sci · 2018 · author #13
  10. CMOS-compatible controlled hyperdoping of silicon nanowires cond-mat.mtrl-sci · 2018 · author #14
  11. Electronic phase separation in insulating (Ga,Mn)As with low compensation: Super-paramagnetism and hopping conduction cond-mat.mtrl-sci · 2018 · author #7
  12. Carrier driven antiferromagnetism and exchange-bias in SrRuO3/CaRuO3 heterostructures cond-mat.mtrl-sci · 2018 · author #8
  13. Symmetry-breaking supercollisions in Landau-quantized graphene cond-mat.mtrl-sci · 2018 · author #9
  14. Interplay between localization and magnetism in (Ga,Mn)As and (In,Mn)As cond-mat.mtrl-sci · 2017 · author #6
  15. Towards diluted magnetism in TaAs cond-mat.mtrl-sci · 2017 · author #12
  16. Interaction between magnetic moments and itinerant carriers in d0 ferromagnetic SiC cond-mat.mtrl-sci · 2017 · author #14
  17. Unconventional double-bended saturation of optical transmission in graphene due to many-particle interactions cond-mat.mes-hall · 2016 · author #4
  18. Intrinsic diamagnetism in the Weyl semimetal TaAs cond-mat.mtrl-sci · 2015 · author #8
  19. Defect-induced magnetism in SiC: Interplay between ferromagnetism and paramagnetism cond-mat.mtrl-sci · 2015 · author #14
  20. Defect-induced magnetism in graphite through neutron irradiation cond-mat.mtrl-sci · 2014 · author #7
  21. Disentangling defect-induced ferromagnetism in SiC cond-mat.mtrl-sci · 2014 · author #11
  22. Structural and magnetic properties of irradiated SiC cond-mat.mtrl-sci · 2014 · author #10
  23. Anisotropy of excitation and relaxation of photogenerated Dirac electrons in graphene cond-mat.mes-hall · 2013 · author #8
  24. Ultrafast graphene-based broadband THz detector physics.optics · 2013 · author #7
  25. Reverse epitaxy of Ge: ordered and facetted surface patterns cond-mat.mes-hall · 2013 · author #3
  26. InP nanocrystals on silicon for optoelectronic applications cond-mat.mtrl-sci · 2012 · author #7
  27. Temperature stable 1.3 {\mu}m emission from GaAs cond-mat.mtrl-sci · 2012 · author #4
  28. Substrate effect on the resistive switching in BiFeO3 thin films cond-mat.mtrl-sci · 2012 · author #10
  29. Ferromagnetic InMnAs on InAs Prepared by Ion Implantation and Pulsed Laser Annealing cond-mat.mtrl-sci · 2012 · author #5
  30. Control of rectifying and resistive switching behavior in BiFeO3 thin films cond-mat.mtrl-sci · 2011 · author #8
  31. Nonvolatile bipolar resistive switching in Au/BiFeO3/Pt cond-mat.mtrl-sci · 2011 · author #4
  32. Reduced leakage current in BiFeO3 thin films with rectifying contacts cond-mat.mtrl-sci · 2011 · author #8
  33. Carrier dynamics in epitaxial graphene close to the Dirac point cond-mat.mtrl-sci · 2011 · author #13
  34. Decisive role of oxygen vacancy in ferroelectric vs. ferromagnetic Mn-doped BaTiO3 thin films cond-mat.mtrl-sci · 2011 · author #7
  35. The importance of hole concentration in establishing carrier-mediated ferromagnetism in Mn doped Ge cond-mat.mtrl-sci · 2010 · author #5
  36. Hysteresis in the magneto-transport of Manganese-doped Germanium: evidence for carrier-mediated ferromagnetism cond-mat.mtrl-sci · 2010 · author #8
  37. Memory effect of Mn$_5$Ge$_3$ nanomagnets embedded inside a Mn-diluted Ge matrix cond-mat.mtrl-sci · 2009 · author #6
  38. Anomalous Hall resistance in Ge:Mn systems with low Mn concentrations cond-mat.mtrl-sci · 2009 · author #3
  39. Spin-dependent transport in nanocomposite C:Co films cond-mat.mtrl-sci · 2009 · author #10
  40. Ferromagnetic, structurally disordered ZnO implanted with Co ions cond-mat.mtrl-sci · 2008 · author #8
  41. Room temperature ferromagnetism in carbon-implanted ZnO cond-mat.mtrl-sci · 2008 · author #9

Mentions

  • 1005.4325 #5 · backfill · confidence 0.70 Manfred Helm
  • 1004.0568 #8 · backfill · confidence 0.70 Manfred Helm
  • 0910.4095 #6 · backfill · confidence 0.70 Manfred Helm
  • 0910.1981 #3 · backfill · confidence 0.70 Manfred Helm
  • 0908.0127 #10 · backfill · confidence 0.70 Manfred Helm
  • 0812.2580 #8 · backfill · confidence 0.70 Manfred Helm
  • 0811.3487 #9 · backfill · confidence 0.70 Manfred Helm

Frequent Coauthors