Typed states for the displayed outbound observations.
Source: paper_references, paper_reference_links, observed 2026-08-14T04:53:59.109433Z
Paper Citation Record · LEDGER
As of 18 August 2026, this Paper Citation Record lists 54 of 54 outbound references and 1 inbound Pith citation observation for arXiv:1909.02557.
A citation records a reference. It does not transfer a finding from one paper to another.
Typed states for the displayed outbound observations.
Source: paper_references, paper_reference_links, observed 2026-08-14T04:53:59.109433Z
One-hop event checks from named stored sources.
Source: scholarly_work_events, retraction_status_cache, observed 2026-08-18T06:34:40.430872+00:00
Pith citing papers itemized under the disclosed page cap.
Source: paper_references, paper_reference_links, observed 2026-08-14T04:53:58.892939Z
A source-named dated measurement, never combined with another source.
Source: pith, observed 2026-08-14T04:53:59.637849Z
54 of 54 outbound references displayed
External citation measurements
No source-named external measurement is stored.
Observation 867b0a09-4dd8-435b-8a67-befc322aa3cb · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Unresolved cited work
Reference 1
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 8ee47c38-d024-41c8-9079-949661fb2320 · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Unresolved cited work
Reference 2
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation f75cc4e4-c5ad-4e3c-a6af-36cc2bada357 · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Crespin, P
Reference 3
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation a71a36f1-9a86-42c0-84cb-b4324338fb13 · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Unresolved cited work
Reference 4
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation 3a9f6377-fdff-412c-b8c4-cbb0ad0c201c · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Unresolved cited work
Reference 5
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation 6e328833-61fb-4da3-92c5-3193fa5561a4 · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ The critical nature of the Ni spin state in doped NdNiO$_2$
Reference 6
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation 70f56624-a964-4d7f-af85-07bb42d8443f · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ et al., Nature 572, 624-627 (2019), URL https: //www.nature.com/articles/s41586-019-1496-5
Reference 7
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation 353a4506-9f8b-4785-bce6-b2eccb4e5991 · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Kamihara et al., J
Reference 8
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation 22423cf3-a2f2-4126-92bb-cfe09e7c4d0a · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Zhou et al., Rare Metals 39, 368-374 (2020), URL https://link.springer.com/article/10.1007/ s12598-020-01389-2
Reference 9
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation 7d355398-77ac-4a9f-bc80-3a2c65eb1cef · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Li et al., Communications Materials 1, 16 (2020), URL https://www.nature.com/articles/ s43246-020-0018-1
Reference 10
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation e24407b2-bc37-4d84-9962-9177faffa3cd · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Hepting et al., Nat
Reference 11
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation 3e47a2b1-43fe-4711-b46c-5a8d0c77b8b5 · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Electronic and Magnetic Structure of Infinite-layer $\textrm{NdNiO}_2$: Trace of Antiferromagnetic Metal
Reference 12
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation 9a944db8-9458-45a8-ac3a-d3a3cc1a5131 · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Nomura et al., Phys
Reference 13
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation b8151845-f480-4e79-a889-6ba249dd53e9 · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Infinite-layer fluoro-nickelates as $d^9$ model materials
Reference 14
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation b5f11578-e6f1-44d5-b30d-c007e1aabd2d · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Zaanen, G
Reference 15
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 914604d6-dcf4-4164-9292-a2b7dca888b5 · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Zaanen and G
Reference 16
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 1f55c154-8434-4c06-b516-92157cab9ae7 · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Unresolved cited work
Reference 17
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation 51f66f30-812b-45d9-9344-7a3bfb8550c1 · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Zaanen and G
Reference 18
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation b1782442-9442-4b45-bb91-e921d9ea2604 · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Unresolved cited work
Reference 19
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation 935710b2-9de1-43a9-b768-87de270d3ff7 · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Jiang, M
Reference 20
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation 8af75914-e4c4-4e03-92f1-902eddf6fb94 · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ This is a considerable energy, which is why the proper modelling of the O band is important
Reference 21
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation 0fe6ba83-b043-4fc1-990a-10ce77fcad5b · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Foyevtsova, I
Reference 22
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation 9c825ade-5c28-45a8-a852-7592b845eeaf · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Si et al., Phys
Reference 23
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation cad16c3b-1f15-432d-96ff-d067fcecb69e · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Many-body Electronic Structure of NdNiO$_2$ and CaCuO$_2$
Reference 24
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation 2fc283b0-e10c-4565-b97b-5dbd9f90c74c · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Unresolved cited work
Reference 25
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 3d1a26d5-5f7f-4b5d-8276-7d9914668249 · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Ballhausen, Introduction to ligand field theory, Mcgraw-Hill series in advanced chemistry (1962)
Reference 26
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation 3b5236ed-95ed-45dd-8f7f-908d9f278b71 · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Eskes and G
Reference 27
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation 60f56d6d-efbf-4088-b46a-7ac120b2fa3a · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Unresolved cited work
Reference 28
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation ce9da459-0456-431d-bcf4-aa76e47fccd1 · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Ebrahimnejad, G
Reference 29
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation ecfd0474-9b13-4b9a-9db5-b6b6c7d60505 · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Ebrahimnejad, G
Reference 30
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation 3431b548-42b4-4865-91be-d1cc206aa454 · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Zhang and A
Reference 31
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation f7e2a412-df9a-45e8-af11-68edfb6596f4 · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Zaanen, A
Reference 32
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation ae9b8f1b-83c7-4afc-87f4-8084a06fac46 · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Lee and W
Reference 33
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 8ebec773-3924-44be-b903-1f7816ac9a00 · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Botana and M
Reference 34
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation fc852f00-6308-47bf-aad3-baf8f6433d6c · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Model construction and a possibility of cuprate-like pairing in a new d9 nickelate superconductor (Nd,Sr)NiO2
Reference 35
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation c0ea5917-b330-4614-88ee-7747a8a66fa7 · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Electronic structures and topological properties in nickelates $Ln_{n+1}$Ni$_n$O$_{2n+2}$
Reference 36
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation 76dc12b7-6775-4793-af9b-5ed9c335137f · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Ryee et al., Phys
Reference 37
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation 973ea295-f3cc-418a-b082-3bd87cbabd48 · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Jiang et al., Phys
Reference 38
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation 319ed257-b2ea-4c94-8f29-555473d371c8 · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Hirayama et al., Phys
Reference 39
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation 63fb32fe-ea44-445d-b428-eda2dddb62af · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ A substantial hybridization between correlated Ni-d orbital and itinerant electrons in infinite-layer nickelates
Reference 40
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation f192b10d-0020-41a6-bad6-a2ff566b72ce · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Lechermann, Phys
Reference 41
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation d21c8fea-5f8c-4414-a99f-61d4f6a923b3 · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Wu et al., Phys
Reference 42
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation bb3c54c8-d934-4614-99c4-5edb46cce2b8 · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Zhang et al., Phys
Reference 43
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation 6cad756e-4239-460e-b24b-eda67f8a3cc4 · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Zhang et al., Phys
Reference 44
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation ae857bb1-b58f-4853-b791-bbdb116e134e · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Unresolved cited work
Reference 45
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation 3738640e-fe87-4f80-982d-66e6034115d7 · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Werner and S
Reference 46
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation b869c3e9-b454-4203-82b7-1c8709414e13 · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Hu and C
Reference 47
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation fe94ab65-7135-45c7-8c76-1a452fe06cdb · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Bernardini, V
Reference 48
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation b6416e2c-64eb-4735-b292-15cf513ddaad · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Core-level x-ray photoemission and Raman spectroscopy studies on electronic structures in Mott-Hubbard type nickelate oxide NdNiO$_2$
Reference 49
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 49e59cdc-c873-48da-9622-e8a29c0289c8 · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Unresolved cited work
Reference 50
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation 533ad323-f033-4644-9c30-f7e8ed6f1e83 · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Hund-Heisenberg model in superconducting infinite-layer nickelates
Reference 51
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation 93c3bfdd-587e-4645-9f2d-5533176d0521 · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Classifying superconductivity in an infinite-layer nickelate Nd$_{0.8}$Sr$_{0.2}$NiO$_2$
Reference 52
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation 40b6996b-a841-4e66-95d1-764e66305b1d · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Nickelate superconductors -- a renaissance of the one-band Hubbard model
Reference 53
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.
Observation 8e12ad40-afc1-4227-83ac-bbd65dc9e6d0 · outbound
The critical nature of the Ni spin state in doped NdNiO$_2$ Electronic Structure Trends Across the Rare-Earth Series in Superconducting Infinite Layer Nickelates
Reference 54
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 6e328833-61fb-4da3-92c5-3193fa5561a4 · inbound
The critical nature of the Ni spin state in doped NdNiO$_2$ The critical nature of the Ni spin state in doped NdNiO$_2$
Reference 6
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.