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RETRACTED: Chiral Majorana fermion modes in a quantum anomalous Hall insulator-superconductor structure.
He, Qing Lin; Pan, Lei; Stern, Alexander L; Burks, Edward C; Che, Xiaoyu; Yin, Gen; Wang, Jing; Lian, Biao; Zhou, Quan; Choi, Eun Sang; Murata, Koichi; Kou, Xufeng; Chen, Zhijie; Nie, Tianxiao; Shao, Qiming; Fan, Yabin; Zhang, Shou-Cheng; Liu, Kai; Xia, Jing; Wang, Kang L.
Afiliação
  • He QL; Department of Electrical and Computer Engineering, Department of Physics, and Department of Materials Science and Engineering, University of California, Los Angeles, CA 90095, USA. qlhe@ucla.edu kouxf@shanghaitech.edu.cn sczhang@stanford.edu wang@ee.ucla.edu.
  • Pan L; Department of Electrical and Computer Engineering, Department of Physics, and Department of Materials Science and Engineering, University of California, Los Angeles, CA 90095, USA.
  • Stern AL; Department of Physics and Astronomy, University of California, Irvine, CA 92697, USA.
  • Burks EC; Physics Department, University of California, Davis, CA 95616, USA.
  • Che X; Department of Electrical and Computer Engineering, Department of Physics, and Department of Materials Science and Engineering, University of California, Los Angeles, CA 90095, USA.
  • Yin G; Department of Electrical and Computer Engineering, Department of Physics, and Department of Materials Science and Engineering, University of California, Los Angeles, CA 90095, USA.
  • Wang J; State Key Laboratory of Surface Physics, Department of Physics, Fudan University, Shanghai 200433, China.
  • Lian B; Department of Physics, Stanford University, Stanford, CA 94305, USA.
  • Zhou Q; Department of Physics, Stanford University, Stanford, CA 94305, USA.
  • Choi ES; Department of Physics, Stanford University, Stanford, CA 94305, USA.
  • Murata K; National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL 32310-3706, USA.
  • Kou X; Department of Electrical and Computer Engineering, Department of Physics, and Department of Materials Science and Engineering, University of California, Los Angeles, CA 90095, USA.
  • Chen Z; Department of Electrical and Computer Engineering, Department of Physics, and Department of Materials Science and Engineering, University of California, Los Angeles, CA 90095, USA. qlhe@ucla.edu kouxf@shanghaitech.edu.cn sczhang@stanford.edu wang@ee.ucla.edu.
  • Nie T; School of Information Science and Technology, ShanghaiTech University, Shanghai 200031, China.
  • Shao Q; Physics Department, University of California, Davis, CA 95616, USA.
  • Fan Y; Department of Electrical and Computer Engineering, Department of Physics, and Department of Materials Science and Engineering, University of California, Los Angeles, CA 90095, USA.
  • Zhang SC; Department of Electrical and Computer Engineering, Department of Physics, and Department of Materials Science and Engineering, University of California, Los Angeles, CA 90095, USA.
  • Liu K; Department of Electrical and Computer Engineering, Department of Physics, and Department of Materials Science and Engineering, University of California, Los Angeles, CA 90095, USA.
  • Xia J; Department of Physics, Stanford University, Stanford, CA 94305, USA. qlhe@ucla.edu kouxf@shanghaitech.edu.cn sczhang@stanford.edu wang@ee.ucla.edu.
  • Wang KL; Physics Department, University of California, Davis, CA 95616, USA.
Science ; 357(6348): 294-299, 2017 07 21.
Article em En | MEDLINE | ID: mdl-28729508
ABSTRACT
Majorana fermion is a hypothetical particle that is its own antiparticle. We report transport measurements that suggest the existence of one-dimensional chiral Majorana fermion modes in the hybrid system of a quantum anomalous Hall insulator thin film coupled with a superconductor. As the external magnetic field is swept, half-integer quantized conductance plateaus are observed at the locations of magnetization reversals, giving a distinct signature of the Majorana fermion modes. This transport signature is reproducible over many magnetic field sweeps and appears at different temperatures. This finding may open up an avenue to control Majorana fermions for implementing robust topological quantum computing.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Revista: Science Ano de publicação: 2017 Tipo de documento: Article
Texto completo
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Revista: Science Ano de publicação: 2017 Tipo de documento: Article