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Electrically controllable zero-energy states in Rashba oxide heterostructure with in-plane magnetic field cooling
Ma, Haijiao Harsan1,2,3,4,5; Gan, Xin1,2,3; Li, Lei6,7; Zhang, Yuguo1,2,3; Zhang, Yue-ying1,2,3; Hui, Yu-peng1,2,3; Zhou, Jianhui8; Zhong, Zhicheng9,10; Zhang, Jincheng1,2,3; Hao, Yue1,2,3
2021-11-08
Source PublicationAPPLIED PHYSICS LETTERS
ISSN0003-6951
Corresponding AuthorMa, Haijiao Harsan(mahj07@xidian.edu.cn) ; Zhou, Jianhui(jhzhou@hmfl.ac.cn)
AbstractZero-energy states in tunnel spectra, an important manifestation of topological superconductivity, have been the focus of the field of topological phases of matter. However, experimentally creating and controlling the zero-energy states is difficult, e.g., it requires a large magnetic field in the case of topological superconductivity. Here, we report on an effective approach to generate controllable zero-energy states in the superconducting Rashba oxide heterostructure by in-plane magnetic field cooling. A pronounced zero-bias conductance peak emerging below a threshold magnetic field down to zero after in-plane magnetic field cooling of a Rashba perovskite oxide heterostructure connecting to an s-wave superconductor. We further demonstrate the high tunability of the zero-energy states between a zero-bias conductance peak and a zero-bias conductance valley by electrical gating at a zero magnetic field. Our theoretical analysis indicates that the in-plane magnetic field or magnetization could lead to finite center-of-mass momentum pairing that supports topological zero-energy states in the Rashba system and provides an opportunity to manipulate topological zero-energy states through gating.
DOI10.1063/5.0067709
WOS KeywordQUANTUM COMPUTATION ; MAJORANA FERMIONS ; SUPERCONDUCTIVITY ; COEXISTENCE
Indexed BySCI
Language英语
Funding ProjectFundamental Research Funds for the Central Universities[JC2101] ; National Science Foundation (NSF) of China[61904140] ; Key Research Program of Frontier Sciences, CAS[ZDBS-LY-SLH008] ; National Key R&D Program of China[2017YFA0303602] ; Program for the Promotion of Junior Researchers at the University Tubingen[4041002622] ; Humboldt Research Fellowship for Postdoctoral Researchers ; High Magnetic Field Laboratory of Anhui Province
Funding OrganizationFundamental Research Funds for the Central Universities ; National Science Foundation (NSF) of China ; Key Research Program of Frontier Sciences, CAS ; National Key R&D Program of China ; Program for the Promotion of Junior Researchers at the University Tubingen ; Humboldt Research Fellowship for Postdoctoral Researchers ; High Magnetic Field Laboratory of Anhui Province
WOS Research AreaPhysics
WOS SubjectPhysics, Applied
WOS IDWOS:000721489800008
PublisherAIP Publishing
Citation statistics
Document Type期刊论文
Identifierhttp://ir.hfcas.ac.cn:8080/handle/334002/126747
Collection中国科学院合肥物质科学研究院
Corresponding AuthorMa, Haijiao Harsan; Zhou, Jianhui
Affiliation1.Xidian Univ, Sch Microelect, Low Dimens Quantum Phys & Devices Grp, 2 South Taibai Rd, Xian 710071, Peoples R China
2.Xidian Univ, Sch Microelect, Lab Wide Band Gap Semicond Technol, 2 South Taibai Rd, Xian 710071, Peoples R China
3.Xidian Univ, Collaborat Innovat Ctr Quantum Informat Shaanxi P, Xian 710071, Peoples R China
4.Univ Tubingen, Phys Inst, Morgenstelle 14, D-72076 Tubingen, Germany
5.Univ Tubingen, Ctr Quantum Sci CQ LISA, Morgenstelle 14, D-72076 Tubingen, Germany
6.Northwestern Polytech Univ, Frontiers Sci Ctr Flexible Elect, Xian Inst Flexible Elect IFE, 127 West Youyi Rd, Xian 710072, Peoples R China
7.Northwestern Polytech Univ, Xian Inst Biomed Mat & Engn, 127 West Youyi Rd, Xian 710072, Peoples R China
8.Chinese Acad Sci, Hefei Inst Phys Sci, Anhui Prov Key Lab Condensed Matter Phys Extreme, High Magnet Field Lab,HFIPS, Hefei 230031, Anhui, Peoples R China
9.Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Key Lab Magnet Mat Devices, Ningbo 315201, Peoples R China
10.Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Zhejiang Prov Key Lab Magnet Mat & Applicat Techn, Ningbo 315201, Peoples R China
Recommended Citation
GB/T 7714
Ma, Haijiao Harsan,Gan, Xin,Li, Lei,et al. Electrically controllable zero-energy states in Rashba oxide heterostructure with in-plane magnetic field cooling[J]. APPLIED PHYSICS LETTERS,2021,119.
APA Ma, Haijiao Harsan.,Gan, Xin.,Li, Lei.,Zhang, Yuguo.,Zhang, Yue-ying.,...&Hao, Yue.(2021).Electrically controllable zero-energy states in Rashba oxide heterostructure with in-plane magnetic field cooling.APPLIED PHYSICS LETTERS,119.
MLA Ma, Haijiao Harsan,et al."Electrically controllable zero-energy states in Rashba oxide heterostructure with in-plane magnetic field cooling".APPLIED PHYSICS LETTERS 119(2021).
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