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Electronic properties of graphene interfaced with multiferroic van der Waals CuCrP2S6 from X-ray spectromicroscopy and DFT

Guo, Yefei ; Gu, Yu ; Yang, Jiali ; Zhou, Junhao ; Jin, Yichen ; Li, Tingxin ; Paulus, Beate ; Preobrajenski, Alexei LU ; Dedkov, Yuriy and Voloshina, Elena (2025) In Carbon 234.
Abstract

The electronic and magnetic properties of the interface formed between graphene and the multiferroic van der Waals material CuCrP2S6 are studied using X-ray spectromicroscopy, accompanied by DFT calculations. These results demonstrate the free-standing character of slightly p-doped graphene, protecting the underlying materials from the environment, while preserving the Dirac cone for the graphene-derived π bands. Despite the strong ferromagnetic ordering of Cr3＋ moments, there is no evidence of proximity effect at the graphene/CuCrP2S6 interface. Our findings and detailed studies of graphene interfaced with different multiferroic materials will aid in its further implementation in... (More)

The electronic and magnetic properties of the interface formed between graphene and the multiferroic van der Waals material CuCrP2S6 are studied using X-ray spectromicroscopy, accompanied by DFT calculations. These results demonstrate the free-standing character of slightly p-doped graphene, protecting the underlying materials from the environment, while preserving the Dirac cone for the graphene-derived π bands. Despite the strong ferromagnetic ordering of Cr3＋ moments, there is no evidence of proximity effect at the graphene/CuCrP2S6 interface. Our findings and detailed studies of graphene interfaced with different multiferroic materials will aid in its further implementation in various applications.

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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
CuCrPS, DFT, Graphene, Multiferroic, NEXAFS, XPS
in
Carbon
volume
234
article number
119974
publisher
Elsevier
external identifiers
  • scopus:85214284022
ISSN
0008-6223
DOI
10.1016/j.carbon.2024.119974
language
English
LU publication?
yes
id
18519634-5735-41bb-acb9-9be1a47b1ffd
date added to LUP
2025-03-10 12:48:17
date last changed
2025-04-04 14:02:13
@article{18519634-5735-41bb-acb9-9be1a47b1ffd,
  abstract     = {{<p>The electronic and magnetic properties of the interface formed between graphene and the multiferroic van der Waals material CuCrP<sub>2</sub>S<sub>6</sub> are studied using X-ray spectromicroscopy, accompanied by DFT calculations. These results demonstrate the free-standing character of slightly p-doped graphene, protecting the underlying materials from the environment, while preserving the Dirac cone for the graphene-derived π bands. Despite the strong ferromagnetic ordering of Cr<sup>3＋</sup> moments, there is no evidence of proximity effect at the graphene/CuCrP<sub>2</sub>S<sub>6</sub> interface. Our findings and detailed studies of graphene interfaced with different multiferroic materials will aid in its further implementation in various applications.</p>}},
  author       = {{Guo, Yefei and Gu, Yu and Yang, Jiali and Zhou, Junhao and Jin, Yichen and Li, Tingxin and Paulus, Beate and Preobrajenski, Alexei and Dedkov, Yuriy and Voloshina, Elena}},
  issn         = {{0008-6223}},
  keywords     = {{CuCrPS; DFT; Graphene; Multiferroic; NEXAFS; XPS}},
  language     = {{eng}},
  publisher    = {{Elsevier}},
  series       = {{Carbon}},
  title        = {{Electronic properties of graphene interfaced with multiferroic van der Waals CuCrP<sub>2</sub>S<sub>6</sub> from X-ray spectromicroscopy and DFT}},
  url          = {{http://dx.doi.org/10.1016/j.carbon.2024.119974}},
  doi          = {{10.1016/j.carbon.2024.119974}},
  volume       = {{234}},
  year         = {{2025}},
}