Charge-Spin Correlation in van der Waals Antiferromagnet NiPS3

被引：145

作者：

Kim, So Yeun ^{[1
,2
]}

Kim, Tae Yun ^{[2
,3
]}

Sandilands, Luke J. ^{[1
,2
,8
]}

Sinn, Soobin ^{[1
,2
]}

Lee, Min-Cheol ^{[1
,2
]}

Son, Jaeseok ^{[1
,2
]}

Lee, Sungmin ^{[1
,2
]}

Choi, Ki-Young ^{[1
,2
]}

Kim, Wondong ^{[4
]}

Park, Byeong-Gyu ^{[5
]}

Jeon, C. ^{[6
]}

Kim, Hyeong-Do ^{[1
,2
]}

Park, Cheol-Hwan ^{[2
,3
]}

Park, Je-Geun ^{[1
,2
]}

Moon, S. J. ^{[7
]}

Noh, T. W. ^{[1
,2
]}

机构：

[1] Inst for Basic Sci Korea, Ctr Correlated Electron Syst, Seoul 08826, South Korea

[2] Seoul Natl Univ, Dept Phys & Astron, Seoul 08826, South Korea

[3] SNU, Ctr Theoret Phys, Seoul 08826, South Korea

[4] KRISS, Daejeon 34113, South Korea

[5] Pohang Univ Sci & Technol POSTECH, Pohang Accelerator Lab, Pohang 37673, South Korea

[6] Korea Basic Sci Inst, Adv Nanosurface Grp, Daejeon 34133, South Korea

[7] Hanyang Univ, Dept Phys, Seoul 04763, South Korea

[8] Natl Res Council Canada, Measurement Sci & Stand, Ottawa, ON K1A 0R6, Canada

来源：

PHYSICAL REVIEW LETTERS | 2018年 / 120卷 / 13期

基金：

新加坡国家研究基金会;

关键词：

X-RAY-ABSORPTION; ELECTRONIC-STRUCTURE; OPTICAL-PROPERTIES; DENSITY-WAVE; SUPERCONDUCTIVITY; OXIDE; FERROMAGNETISM; PHOTOEMISSION; BEHAVIOR; CRYSTAL;

D O I：

10.1103/PhysRevLett.120.136402

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

引用

页数：6

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