Fe_1+yTe_xSe_1-x: A Delicate and Tunable Majorana Material

Fazhi Yang; Giao Ngoc Phan; Renjie Zhang; Jin Zhao; Jiajun Li; Zouyouwei Lu; John Schneeloch; Ruidan Zhong; Mingwei Ma; Genda Gu; Xiaoli Dong; Tian Qian; Hong Ding

doi:10.1088/0256-307X/40/1/017401

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Fe $_{1+y}$ Te $_{x}$ Se $_{1-x}$ : A Delicate and Tunable Majorana Material

Fazhi Yang^1,2†,
Giao Ngoc Phan^1,3†*,
Renjie Zhang^1,2,
Jin Zhao^1,2,
Jiajun Li^1,2,
Zouyouwei Lu^1,2,
John Schneeloch⁴,
Ruidan Zhong^4,6,
Mingwei Ma^1,5,
Genda Gu⁴,
Xiaoli Dong^1,2,5,
Tian Qian^1,5,
Hong Ding^1,3,6*

¹Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
²School of Physics, University of Chinese Academy of Sciences, Beijing 100190, China
³CAS Center for Excellence in Topological Quantum Computation, University of Chinese Academy of Sciences, Beijing 100190, China
⁴Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, NY, USA
⁵Songshan Lake Materials Laboratory, Dongguan 523808, China
⁶Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai 201210, China

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Received Date: October 29, 2022

Published Date: December 31, 2022

Abstract

Abstract

We report the observation for the $p_{z}$ electron band and the band inversion in Fe $_{1+y}$ Te $_{x}$ Se $_{1-x}$ with angle-resolved photoemission spectroscopy. Furthermore, we found that excess Fe ( $y> 0$ ) inhibits the topological band inversion in Fe $_{1+y}$ Te $_{x}$ Se $_{1-x}$ , which explains the absence of Majorana zero modes in previous reports for Fe $_{1+y}$ Te $_{x}$ Se $_{1-x}$ with excess Fe. Based on our analysis of different amounts of Te doping and excess Fe, we propose a delicate topological phase in this material. Thanks to this delicate phase, one may be able to tune the topological transition via applying lattice strain or carrier doping.

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[1]	Zhang P, Yaji K, Hashimoto T, Ota Y, Kondo T, Okazaki K, Wang Z J, Wen J S, Gu G D, Ding H, and Shik S 2018 Science 360 182 Google Scholar
[2]	Wang D F, Kong L Y, Fan P, Chen H, Zhu S Y, Liu W Y, Cao L, Sun Y J, Du S X, Schneeloch J, Zhong R D, Gu G D, Fu L, Ding H, and Gao H J 2018 Science 362 333 Google Scholar
[3]	Liu W Y, Cao L, Zhu S Y, Kong L Y, Wang G W, Papaj M, Zhang P, Liu Y B, Chen H, Li G, Yang F Z, Kondo T, Du S X, Cao G H, Shin S, Fu L, Yin Z P, Gao H J, and Ding H 2020 Nat. Commun. 11 5688 Google Scholar
[4]	Fan P, Yang F Z, Qian G J, Chen H, Zhang Y Y, Li G, Huang Z H, Xing Y Q, Kong L Y, Liu W Y, Jiang K, Shen C M, Du S X, Schneeloch J, Zhong R D, Gu G D, Wang Z Q, Ding H, and Gao H J 2021 Nat. Commun. 12 1348 Google Scholar
[5]	Kong L Y, Cao L, Zhu S Y, Papaj M, Dai G Y, Li G, Fan P, Liu W Y, Yang F Z, Wang X C, Du S X, Jin C Q, Fu L, Gao H J, and Ding H 2021 Nat. Commun. 12 4146 Google Scholar
[6]	Li M, Li G, Cao L, Zhou X T, Wang X C, Jin C Q, Chiu C K, Pennycook J S, Wang Z Q, and Gao H J 2022 Nature 606 890 Google Scholar
[7]	Liu W Y, Hu Q X, Wang X C, Zhong Y G, Yang F Z, Kong L Y, Cao L, Li G, Okazaki K, Kondo T, Jin C Q, Zhang F C, Xu J P, Gao H J, and Ding H 2022 Quantum Front 1 20 Google Scholar
[8]	Wang Z J, Zhang P, Xu G, Zeng L K, Miao H, Xu X Y, Qian T, Weng H M, Richard P, Fedorov A V, Ding H, Dai X, and Fang Z 2015 Phys. Rev. B 92 115119 Google Scholar
[9]	Zhang P, Wang Z J, Wu X X et al.. 2019 Nat. Phys. 15 41 Google Scholar
[10]	Lohani H, Hazra T, Ribak A, Nitzav Y, Fu H X, Yan B H, Randeria M, and Kanigel A 2020 Phys. Rev. B 101 245146 Google Scholar
[11]	Peng X L, Li Y, Wu X X, Deng H B, Shi X, Fan W H, Li M, Huang Y B, Qian T, Richard P, Hu J P, Pan S H, Mao H Q, Sun Y J, and Ding H 2019 Phys. Rev. B 100 155134 Google Scholar
[12]	Machida T, Sun Y, Pyon S, Takeda S, Kohsaka Y, Hanaguri T, Sasagawa T, and Tamegai T 2019 Nat. Mater. 18 811 Google Scholar
[13]	Chen M Y, Chen X Y, Yang H, Du Z Y, Zhu X Y, Wang E Y, and Wen H H 2018 Nat. Commun. 9 970 Google Scholar
[14]	Chiu C K, Machida T, Huang Y Y, Hanaguri T, and Zhang F C 2020 Sci. Adv. 6 eaay0443 Google Scholar
[15]	Pathak V, Plugge S, and Franz M 2021 Ann. Phys. 435 168431 Google Scholar
[16]	Kong L Y, Zhu S Y, Papaj M, Chen H, Cao L, Isobe H, Xing Y Q, Liu W Y, Wang D F, Fan P, Sun Y J, Du S X, Schneeloch J, Zhong R D, Gu G D, Fu L, Gao H J, and Ding H 2019 Nat. Phys. 15 1181 Google Scholar
[17]	Li Y M, Zaki N, Garlea V O, Savici A T, Fobes D, Xu Z J, Camino F, Petrovic C, Gu G D, Johnson P D, Tranquada J M, and Zaliznyak I A 2021 Nat. Mater. 20 1221 Google Scholar
[18]	Singh U R, White S C, Schmaus S, Tsurkan V, Loidl A, Deisenhofer J, and Wahl P 2013 Phys. Rev. B 88 155124 Google Scholar
[19]	Yin J X, Wu Z, Wang J H, Ye Z Y, Gong J, Hou X Y, Shan L, Li A, Liang X J, Wu X X, Li J, Ting C S, Wang Z Q, Hu J P, Hor P H, Ding H, and Pan S H 2015 Nat. Phys. 11 543 Google Scholar
[20]	Li H, Ma M W, Liu S B, Zhou F, and Dong X L 2020 Chin. Phys. B 29 127404 Google Scholar
[21]	Nakayama K, Miyata Y, Phan G N, Sato T, Tanabe Y, Urata T, Tanigaki K, and Takahashi T 2014 Phys. Rev. Lett. 113 237001 Google Scholar
[22]	Zhang P, Qian T, Richard P, Wang X P, Miao H, Lv B Q, Fu B B, Wolf T, Meingast C, Wu X X, Wang Z Q, Hu J P, and Ding H 2015 Phys. Rev. B 91 214503 Google Scholar
[23]	Yin Z P, Haule K, and Kotliar G 2011 Nat. Mater. 10 932 Google Scholar
[24]	Sales B C, Sefat A S, McGuire M A, Jin R Y, Mandrus D, and Mozharivskyj Y 2009 Phys. Rev. B 79 094521 Google Scholar
[25]	Phan G N, Nakayama K, Sugawara K, Sato T, Urata T, Tanabe Y, Tanigaki K, Nabeshima F, Imai Y, Maeda A, and Takahashi T 2017 Phys. Rev. B 95 224507 Google Scholar
[26]	Kasahara S, Watashige T, Hanaguri T, Kohsaka Y, Yamashita T, Shimoyama Y, Mizukami Y, Endo R, Ikeda H, Aoyama K, Terashima T, Uji S, Wolf T, Lohneysen H, Shibauchi T, and Matsuda Y 2014 Proc. Natl. Acad. Sci. USA 111 16309 Google Scholar
[27]	Zaki N, Gu G D, Tsvelik A, Wu C J, and Johnson P D 2021 Proc. Natl. Acad. Sci. USA 118 e2007241118 Google Scholar
[28]	Rameau J D, Zaki N, Gu G D, Johnson P D, and Weinert M 2019 Phys. Rev. B 99 205117 Google Scholar

[1]	JIANG Zhi-Wei. A New Model for Quark Mass Matrix [J]. Chin. Phys. Lett., 2011, 28(6): 061201. doi: 10.1088/0256-307X/28/6/061201
[2]	QIAN Yi-Bin, REN Zhong-Zhou, NI Dong-Dong, SHENG Zong-Qiang. Half-Lives of Proton Emitters With a Deformed Density-Dependent Model [J]. Chin. Phys. Lett., 2010, 27(11): 112301. doi: 10.1088/0256-307X/27/11/112301
[3]	CHEN Ling-Zhi, PANG Hou-Rong, HUANG Hong-Xia, PING Jia-Lun, WANG Fan. Subtraction of Spurious Centre-of-Mass Motion in Quark Delocalization and Colour Screening Model [J]. Chin. Phys. Lett., 2007, 24(9): 2529-2532.
[4]	YUE Chong-Xing, WANG Lei, WANG Li-Na, ZHANG Yan-Ming. Littlest Higgs Model and Spin Correlation of Top Quark Production at High Energy Linear e⁺ e^- Colliders [J]. Chin. Phys. Lett., 2006, 23(9): 2379-2382.
[5]	ZONG Hong-Shi, WU Xiao-Hua, HOU Feng-Yao, ZHAO En-Guang. Explicit and Dynamical Chiral Symmetry Breaking in an Effective Quark-Quark Interaction Model [J]. Chin. Phys. Lett., 2004, 21(1): 43-46.
[6]	JIANG Wei-zhou, ZHU Zhi-yuan, QIU Xi-jun. Relativistic Density-Dependent Hartree Approach for Nuclear Matter in the Chiral-Symmetry-Breaking Model [J]. Chin. Phys. Lett., 1996, 13(6): 416-419.
[7]	ZHU Wei, XU Zaixin. Nuclear Gluon Density in the Constituent Quark Model [J]. Chin. Phys. Lett., 1993, 10(10): 588-590.
[8]	LIU JuePing, LIU DunHuan. Quark Mass Corrections to the QCD Finite Energy Sum Rules for the O++ scalar Glueball [J]. Chin. Phys. Lett., 1991, 8(11): 551-554.
[9]	ZHANG Lin. THREE-LOOP BETA-FUNCTIONS FOR THE BOSONIC NON-LINEAR SIGMA MODEL WITH A WESS-ZUMINO-WITTEN TERM [J]. Chin. Phys. Lett., 1989, 6(6): 245-248.
[10]	DING Xiaonan, SHEN Pengnian, ZHANG Zongye, YU Youwen. NUCLEON-NUCLEON INTERACTION WITH A FLAT BOTTOM LINEAR CONFINEMENT POTENTIAL IN THE QUARK MODEL [J]. Chin. Phys. Lett., 1988, 5(7): 297-300.

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Fe $_{1+y}$ Te $_{x}$ Se $_{1-x}$ : A Delicate and Tunable Majorana Material

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Fe $_{1+y}$ Te $_{x}$ Se $_{1-x}$ : A Delicate and Tunable Majorana Material