Measurement of electronic structure in van der Waals ferromagnet Fe5-xGeTe2

doi:10.1088/1674-1056/ac5c3c

中国物理B ›› 2022, Vol. 31 ›› Issue (5): 57404-057404.doi: 10.1088/1674-1056/ac5c3c

Measurement of electronic structure in van der Waals ferromagnet Fe_5-xGeTe₂

Kui Huang(黄逵)^1,2,3, Zhenxian Li(李政贤)¹, Deping Guo(郭的坪)⁴, Haifeng Yang(杨海峰)¹, Yiwei Li(李一苇)^1,5, Aiji Liang(梁爱基)^1,5, Fan Wu(吴凡)¹, Lixuan Xu(徐丽璇)⁶, Lexian Yang(杨乐仙)⁶, Wei Ji(季威)⁴, Yanfeng Guo(郭艳峰)¹, Yulin Chen(陈宇林)^1,5,7,†, and Zhongkai Liu(柳仲楷)^1,5,‡

1 School of Physical Science and Technology, ShanghaiTech University, Shanghai 200031, China;
2 Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China;
3 University of Chinese Academy of Sciences, Beijing 100049, China;
4 Department of Physics and Beijing Key Laboratory of Opto-electronic Functional Materials & Micro-nano Devices, Renmin University of China, Beijing 100190, China;
5 ShanghaiTech Laboratory for Topological Physics, ShanghaiTech University, Shanghai 201210, China;
6 State Key Laboratory of Low Dimensional Quantum Physics and Department of Physics, Tsinghua University, Beijing 100084, China;
7 Department of Physics, University of Oxford, Oxford OX1 3PU, United Kingdom

收稿日期:2022-01-13 修回日期:2022-03-03 发布日期:2022-04-29
通讯作者: Yulin Chen,E-mail:yulin.chen@physics.ox.ac.uk;Zhongkai Liu,E-mail:liuzhk@shanghaitech.edu.cn E-mail:yulin.chen@physics.ox.ac.uk;liuzhk@shanghaitech.edu.cn
基金资助:
This research used BL03U of Shanghai Synchrotron Radiation Facility and I05 of the Diamond Light Source.We also acknowledge the Analytical Instrumentation Center of ShanghaiTech University for x-ray diffraction and MPMS measurements.Z.K.Liu acknowledges the National Key R&D Program of China (Grant No.2017YFA0305400).

Measurement of electronic structure in van der Waals ferromagnet Fe_5-xGeTe₂

1 School of Physical Science and Technology, ShanghaiTech University, Shanghai 200031, China;
2 Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China;
3 University of Chinese Academy of Sciences, Beijing 100049, China;
4 Department of Physics and Beijing Key Laboratory of Opto-electronic Functional Materials & Micro-nano Devices, Renmin University of China, Beijing 100190, China;
5 ShanghaiTech Laboratory for Topological Physics, ShanghaiTech University, Shanghai 201210, China;
6 State Key Laboratory of Low Dimensional Quantum Physics and Department of Physics, Tsinghua University, Beijing 100084, China;
7 Department of Physics, University of Oxford, Oxford OX1 3PU, United Kingdom

Received:2022-01-13 Revised:2022-03-03 Published:2022-04-29
Contact: Yulin Chen,E-mail:yulin.chen@physics.ox.ac.uk;Zhongkai Liu,E-mail:liuzhk@shanghaitech.edu.cn E-mail:yulin.chen@physics.ox.ac.uk;liuzhk@shanghaitech.edu.cn
About author:2022-3-10
Supported by:
This research used BL03U of Shanghai Synchrotron Radiation Facility and I05 of the Diamond Light Source.We also acknowledge the Analytical Instrumentation Center of ShanghaiTech University for x-ray diffraction and MPMS measurements.Z.K.Liu acknowledges the National Key R&D Program of China (Grant No.2017YFA0305400).

摘要/Abstract

摘要： As a van der Waals ferromagnet with high Curie temperature, Fe_5-xGeTe₂ has attracted tremendous interests recently. Here, using high-resolution angle-resolved photoemission spectroscopy (ARPES), we systematically investigated the electronic structure of Fe_5-xGeTe₂ crystals and its temperature evolution. Our ARPES measurement reveals two types of band structures from two different terminations with slight k_z evolution. Interestingly, across the ferromagnetic transition, we observed the merging of two split bands above the Curie temperature, suggesting the band splitting due to the exchange interaction within the itinerant Stoner model. Our results provide important insights into the electronic and magnetic properties of Fe_5-xGeTe₂ and the understanding of magnetism in a two-dimensional ferromagnetic system.

关键词: angle-resolved photoemission spectroscopy, van der Waals ferromagnet, electronic structure

Abstract: As a van der Waals ferromagnet with high Curie temperature, Fe_5-xGeTe₂ has attracted tremendous interests recently. Here, using high-resolution angle-resolved photoemission spectroscopy (ARPES), we systematically investigated the electronic structure of Fe_5-xGeTe₂ crystals and its temperature evolution. Our ARPES measurement reveals two types of band structures from two different terminations with slight k_z evolution. Interestingly, across the ferromagnetic transition, we observed the merging of two split bands above the Curie temperature, suggesting the band splitting due to the exchange interaction within the itinerant Stoner model. Our results provide important insights into the electronic and magnetic properties of Fe_5-xGeTe₂ and the understanding of magnetism in a two-dimensional ferromagnetic system.

Key words: angle-resolved photoemission spectroscopy, van der Waals ferromagnet, electronic structure

中图分类号: (Electronic structure (photoemission, etc.))

74.25.Jb

71.20.-b (Electron density of states and band structure of crystalline solids) 31.15.A- (Ab initio calculations) 77.80.B- (Phase transitions and Curie point)

Kui Huang(黄逵), Zhenxian Li(李政贤), Deping Guo(郭的坪), Haifeng Yang(杨海峰), Yiwei Li(李一苇),Aiji Liang(梁爱基), Fan Wu(吴凡), Lixuan Xu(徐丽璇), Lexian Yang(杨乐仙), Wei Ji(季威),Yanfeng Guo(郭艳峰), Yulin Chen(陈宇林), and Zhongkai Liu(柳仲楷). Measurement of electronic structure in van der Waals ferromagnet Fe_5-xGeTe₂[J]. 中国物理B, 2022, 31(5): 57404-057404.

参考文献

[1] Huang B, Clark G, Navarro-Moratalla E, Klein D R, Cheng R, Seyler K L, Zhong D, Schmidgall E, McGuire M A, Cobden D H, Yao W, Xiao D, Jarillo-Herrero P and Xu X 2017 Nature 546 270
[2] Gong C, Li L, Li Z, Ji H, Stern A, Xia Y, Cao T, Bao W, Wang C, Wang Y, Qiu Z Q, Cava R J, Louie S G, Xia J and Zhang X 2017 Nature 546 265
[3] Liu B, Zou Y, Zhang L, Zhou S, Wang Z, Wang W, Qu Z and Zhang Y 2016 Sci. Rep. 6 33873
[4] Lin G T, Zhuang H L, Luo X, Liu B J, Chen F C, Yan J, Sun Y, Zhou J, Lu W J, Tong P, Sheng Z G, Qu Z, Song W H, Zhu X B and Sun Y P 2017 Phys. Rev. B 95 245212
[5] Jiang S, Shan J and Mak K F 2018 Nat. Mater. 17 406
[6] Jiang S, Li L, Wang Z, Mak K F and Shan J 2018 Nat. Nanotechnol. 13 549
[7] Mermin N D and Wagner H 1966 Phys. Rev. Lett. 17 1133
[8] Lin M W, Zhuang H L, Yan J, Ward T Z, Puretzky A A, Rouleau C M, Gai Z, Liang L, Meunier V, Sumpter B G, Ganesh P, Kent P R C, Geohegan D B, Mandrus D G and Xiao K 2016 J. Mater. Chem. C 4 315
[9] Bonilla M, Kolekar S, Ma Y, Diaz H C, Kalappattil V, Das R, Eggers T, Gutierrez H R, Phan M H and Batzill M 2018 Nat. Nanotechnol. 13 289
[10] O'Hara D J, Zhu T, Trout A H, Ahmed A S, Luo Y K, Lee C H, Brenner M R, Rajan S, Gupta J A, McComb D W and Kawakami R K 2018 Nano Lett. 18 3125
[11] Deng Y, Yu Y, Song Y, Zhang J, Wang N Z, Sun Z, Yi Y, Wu Y Z, Wu S, Zhu J, Wang J, Chen X H and Zhang Y 2018 Nature 563 94
[12] Fei Z, Huang B, Malinowski P, Wang W, Song T, Sanchez J, Yao W, Xiao D, Zhu X, May A F, Wu W, Cobden D H, Chu J H and Xu X 2018 Nat. Mater. 17 778
[13] Xu X, Li Y W, Duan S R, Zhang S L, Chen Y J, Kang L, Liang A J, Chen C, Xia W, Xu Y, Malinowski P, Xu X D, Chu J H, Li G, Guo Y F, Liu Z K, Yang L X and Chen Y L 2020 Phys. Rev. B 101 201104
[14] Chen B, Yang J, Wang H, Imai M, Ohta H, Michioka C, Yoshimura K and Fang M 2013 J. Phys. Soc. Jpn. 82 124711
[15] Verchenko V Y, Tsirlin A A, Sobolev A V, Presniakov I A and Shevelkov A V 2015 Inorg. Chem. 54 8598
[16] Stahl J, Shlaen E and Johrendt D 2018 Zeitschrift für Anorg. und Allg. Chemie 644 1923 (in France)
[17] May A F, Ovchinnikov D, Zheng Q, Hermann R, Calder S, Huang B, Fei Z, Liu Y, Xu X and McGuire M A 2019 ACS Nano 13 4436
[18] Kim K, Seo J, Lee E, Ko K T, Kim B S, Jang B G, Ok J M, Lee J, Jo Y J, Kang W, Shim J H, Kim C, Yeom H W, Il Min B, Yang B J and Kim J S 2018 Nat. Mater. 17 794
[19] You Y, Gong Y, Li H, Li Z, Zhu M, Tang J, Liu E, Yao Y, Xu G, Xu F and Wang W 2019 Phys. Rev. B 100 134441
[20] Zhang Y, Lu H, Zhu X, Tan S, Feng W, Liu Q, Zhang W, Chen Q, Liu Y, Luo X, Xie D, Luo L, Zhang Z and Lai X 2018 Sci. Adv. 4 eaao679
[21] Ding B, Li Z, Xu G, Li H, Hou Z, Liu E, Xi X, Xu F, Yao Y and Wang W 2020 Nano Lett. 20 868
[22] Zhuang H L, Kent P R C and Hennig R G 2016 Phys. Rev. B 93 134407
[23] May A F, Bridges C A and McGuire M A 2019 Phys. Rev. Mater. 3 104401
[24] Li Z, Xia W, Su H, Yu Z, Fu Y, Chen L, Wang X, Yu N, Zou Z and Guo Y 2020 Sci. Rep. 10 15345
[25] Wu X, Lei L, Yin Q, Zhao N N, Li M, Wang Z, Liu Q, Song W, Ma H, Ding P, Cheng Z, Liu K, Lei H and Wang S 2021 Phys. Rev. B 104 165101
[26] Watson M D, Marković I, Mazzola F, Rajan A, Morales E A, Burn D M, Hesjedal T, van der Laan G, Mukherjee S, Kim T K, Bigi C, Vobornik I, Ciomaga Hatnean M, Balakrishnan G and King P D C 2020 Phys. Rev. B 101 205125
[27] Zhang Y, Holder T, Ishizuka H, de Juan F, Nagaosa N, Felser C and Yan B 2019 Nat. Commun. 10 3783
[28] Blöchl P E, Jepsen O and Andersen O K 1994 Phys. Rev. B 49 16223
[29] Kresse G and Joubert D 1999 Phys. Rev. B 59 1758
[30] Kresse G and Furthmüller J 1996 Phys. Rev. B 54 11169
[31] Klimeš J, Bowler D R and Michaelides A 2011 Phys. Rev. B 83 195131
[32] Anisimov V I, Aryasetiawan F and Lichtenstein A I 1997 J. Phys. Condens. Matter 9 767

Measurement of electronic structure in van der Waals ferromagnet Fe_5-xGeTe₂

Measurement of electronic structure in van der Waals ferromagnet Fe_5-xGeTe₂

RichHTML

PDF (PC)

赞

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

Metrics

本文评价

推荐阅读 0

[1]	Yuanqi Jiang(蒋元祺), Ping Peng(彭平). Predicting novel atomic structure of the lowest-energy Fe_nP_13-n(n=0-13) clusters: A new parameter for characterizing chemical stability[J]. 中国物理B, 2023, 32(4): 47102-047102.
[2]	Ming Yan(闫明), Zhi-Yuan Xie(谢志远), and Miao Gao(高淼). High-temperature ferromagnetism and strong π-conjugation feature in two-dimensional manganese tetranitride[J]. 中国物理B, 2023, 32(3): 37104-037104.
[3]	Gang Wu(吴刚), Lu Wang(王璐), Kuo Bao(包括), Xianli Li(李贤丽), Sheng Wang(王升), and Chunhong Xu(徐春红). Bandgap evolution of Mg₃N₂ under pressure: Experimental and theoretical studies[J]. 中国物理B, 2022, 31(6): 66205-066205.
[4]	Bo-Shen Zhou(周博深), Hao-Ran Gao(高浩然), Yu-Chen Liu(刘雨辰), Zi-Mu Li(李子木),Yang-Yang Huang(黄阳阳), Fu-Chun Liu(刘福春), and Xiao-Chun Wang(王晓春). First principles investigation on Li or Sn codoped hexagonal tungsten bronzes as the near-infrared shielding material[J]. 中国物理B, 2022, 31(5): 57804-057804.
[5]	Xiaobing Fan(范小兵), Shikai Xiang(向士凯), and Lingcang Cai(蔡灵仓). Temperature dependence of bismuth structures under high pressure[J]. 中国物理B, 2022, 31(5): 56101-056101.
[6]	Humberto Noverola-Gamas, Luis Manuel Gaggero-Sager, and Outmane Oubram. Nonlinear optical properties in n-type quadruple δ-doped GaAs quantum wells[J]. 中国物理B, 2022, 31(4): 44203-044203.
[7]	Guoqi Zhao(赵国琪), Jiahao Xie(颉家豪), Kun Zhou(周琨), Bangyu Xing(邢邦昱), Xinjiang Wang(王新江), Fuyu Tian(田伏钰), Xin He(贺欣), and Lijun Zhang(张立军). High-throughput computational material screening of the cycloalkane-based two-dimensional Dion—Jacobson halide perovskites for optoelectronics[J]. 中国物理B, 2022, 31(3): 37104-037104.
[8]	Na Qin(秦娜), Xian Du(杜宪), Yangyang Lv(吕洋洋), Lu Kang(康璐), Zhongxu Yin(尹中旭), Jingsong Zhou(周景松), Xu Gu(顾旭), Qinqin Zhang(张琴琴), Runzhe Xu(许润哲), Wenxuan Zhao(赵文轩), Yidian Li(李义典), Shuhua Yao(姚淑华), Yanfeng Chen(陈延峰), Zhongkai Liu(柳仲楷), Lexian Yang(杨乐仙), and Yulin Chen(陈宇林). Electronic structure and spin–orbit coupling in ternary transition metal chalcogenides Cu₂TlX₂ (X = Se, Te)[J]. 中国物理B, 2022, 31(3): 37101-037101.
[9]	Tongyao Wu(吴桐尧), Hongyuan Wang(王洪远), Yuanyuan Yang(杨媛媛), Shaofeng Duan(段绍峰), Chaozhi Huang(黄超之), Tianwei Tang(唐天威), Yanfeng Guo(郭艳峰), Weidong Luo(罗卫东), and Wentao Zhang(张文涛). Determination of the surface states from the ultrafast electronic states in a thermoelectric material[J]. 中国物理B, 2022, 31(2): 27902-027902.
[10]	Jia-Liang Chen(陈嘉亮), Hui-Jia Hu(胡慧佳), and Shi-Hao Wei(韦世豪). Transition metal anchored on C₉N₄ as a single-atom catalyst for CO₂ hydrogenation: A first-principles study[J]. 中国物理B, 2022, 31(10): 107306-107306.
[11]	Liping Liu(刘立平), Jin Cao(曹晋), Wei Guo(郭伟), and Chongyu Wang(王崇愚). Spin and spin-orbit coupling effects in nickel-based superalloys: A first-principles study on Ni₃Al doped with Ta/W/Re[J]. 中国物理B, 2022, 31(1): 16105-016105.
[12]	Xiao-Yan Liu(刘晓艳), Lei Wang(王磊), and Yi Tong(童祎). First-principles study of structural and opto-electronic characteristics of ultra-thin amorphous carbon films[J]. 中国物理B, 2022, 31(1): 16102-016102.
[13]	Zhen Feng(冯振), Yi Li(李依), Yaqiang Ma(马亚强), Yipeng An(安义鹏), and Xianqi Dai(戴宪起). Magnetic and electronic properties of two-dimensional metal-organic frameworks TM₃(C₂NH)₁₂[J]. 中国物理B, 2021, 30(9): 97102-097102.
[14]	Xu-Chuan Wu(吴徐传), Shen Xu(徐升), Jian-Feng Zhang(张建丰), Huan Ma(马欢), Kai Liu(刘凯), Tian-Long Xia(夏天龙), and Shan-Cai Wang(王善才). High-resolution angle-resolved photoemission study of large magnetoresistance topological semimetal CaAl₄[J]. 中国物理B, 2021, 30(9): 97303-097303.
[15]	Hao-Ran Zhu(祝浩然), Jia-Liang Chen(陈嘉亮), and Shi-Hao Wei(韦世豪). Single boron atom anchored on graphitic carbon nitride nanosheet (B/g-C₂N) as a photocatalyst for nitrogen fixation: A first-principles study[J]. 中国物理B, 2021, 30(8): 83101-083101.