Charge-Spin Correlation in van der Waals Antiferromagnet NiPS3

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Title
Charge-Spin Correlation in van der Waals Antiferromagnet NiPS3
Author(s)
So Yeun Kim; Tae Yun Kim; Luke J. Sandilands; Soobin Sinn; Min-Cheol Lee; Jaeseok Son; Sungmin Lee; Ki-Young Choi; Wondong Kim; Byeong-Gyu Park; C. Jeon; Hyeong-Do Kim; Cheol-Hwan Park; Je-Geun Park; S. J. Moon; T. W. Noh
Publication Date
2018-03
Journal
PHYSICAL REVIEW LETTERS, v.120, no.13, pp.1 - 6
Publisher
AMER PHYSICAL SOC
Abstract
Strong charge-spin coupling is found in a layered transition-metal trichalcogenide NiPS3, a van der Waals antiferromagnet, from studies of the electronic structure using several experimental and theoretical tools: spectroscopic ellipsometry, x-ray absorption, photoemission spectroscopy, and density functional calculations. NiPS3 displays an anomalous shift in the optical spectral weight at the magnetic ordering temperature, reflecting strong coupling between the electronic and magnetic structures. X-ray absorption, photoemission, and optical spectra support a self-doped ground state in NiPS3. Our work demonstrates that layered transition-metal trichalcogenide magnets are useful candidates for the study of correlated-electron physics in two-dimensional magnetic materials. © 2018 American Physical Society
URI
https://pr.ibs.re.kr/handle/8788114/4599
ISSN
0031-9007
Appears in Collections:
Center for Correlated Electron Systems(강상관계 물질 연구단) > Journal Papers (저널논문)
Files in This Item:
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