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Title: Observation of the spin-polarized surface state in a noncentrosymmetric superconductor BiPd

Abstract

Recently, noncentrosymmetric superconductor BiPd has attracted considerable research interest due to the possibility of hosting topological superconductivity. Here in this paper we report a systematic high-resolution angle-resolved photoemission spectroscopy (ARPES) and spin-resolved ARPES study of the normal state electronic and spin properties of BiPd. Our experimental results show the presence of a surface state at higher-binding energy with the location of Dirac point at around 700 meV below the Fermi level. The detailed photon energy, temperature-dependent and spin-resolved ARPES measurements complemented by our first-principles calculations demonstrate the existence of the spin-polarized surface states at high-binding energy. The absence of such spin-polarized surface states near the Fermi level negates the possibility of a topological superconducting behaviour on the surface. Our direct experimental observation of spin-polarized surface states in BiPd provides critical information that will guide the future search for topological superconductivity in noncentrosymmetric materials.

Authors:
 [1];  [2];  [1];  [3];  [1];  [2];  [1];  [4];  [2];  [2];  [5];  [6];  [7];  [7];  [8];  [9];  [10];  [4];  [2]; ORCiD logo [11]
+ Show Author Affiliations
  1. Univ. of Central Florida, Orlando, FL (United States). Dept. of Physics
  2. Princeton Univ., NJ (United States). Joseph Henry Lab. and Dept. of Physics
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  4. National Taiwan Univ., Taipei (Taiwan). Center for Condensed Matter Sciences
  5. National Tsing Hua Univ., Hsinchu (Taiwan). Dept. of Physics
  6. National Tsing Hua Univ., Hsinchu (Taiwan). Dept. of Physics; Academia Sinica, Taipei (Taiwan). Inst. of Physics
  7. Hiroshima Univ., Higashi-Hiroshima (Japan). Hiroshima Synchrotron Radiation Center
  8. National Univ. of Singapore (Singapore). Centre for Advanced 2D Materials and Graphene Research Centre; National Univ. of Singapore (Singapore). Dept. of Physics
  9. Northeastern Univ., Boston, MA (United States). Dept. of Physics
  10. Polish Academy of Sciences, Wroclaw (Poland). Inst. of Low Temperature and Structure Research
  11. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Maria Curie-Sklodowska Univ., Lublin (Poland). Inst. of Physics
Publication Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES); Singapore National Research Foundation; National Science Centre, Poland; National Science Council, Taiwan
OSTI Identifier:
1352445
Report Number(s):
LA-UR-15-22780
Journal ID: ISSN 2041-1723
Grant/Contract Number:  
AC52-06NA25396; FG02-07ER46352; AC02-05CH11231; 2015/18/A/ST3/00057; NRF-NRFF2013-03
Resource Type:
Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 7; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; Topological insulators; Electronic properties and materials

Citation Formats

Neupane, Madhab, Alidoust, Nasser, Hosen, M. Mofazzel, Zhu, Jian-Xin, Dimitri, Klauss, Xu, Su-Yang, Dhakal, Nagendra, Sankar, Raman, Belopolski, Ilya, Sanchez, Daniel S., Chang, Tay-Rong, Jeng, Horng-Tay, Miyamoto, Koji, Okuda, Taichi, Lin, Hsin, Bansil, Arun, Kaczorowski, Dariusz, Chou, Fangcheng, Hasan, M. Zahid, and Durakiewicz, Tomasz. Observation of the spin-polarized surface state in a noncentrosymmetric superconductor BiPd. United States: N. p., 2016. Web. doi:10.1038/ncomms13315.
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Neupane, Madhab, Alidoust, Nasser, Hosen, M. Mofazzel, Zhu, Jian-Xin, Dimitri, Klauss, Xu, Su-Yang, Dhakal, Nagendra, Sankar, Raman, Belopolski, Ilya, Sanchez, Daniel S., Chang, Tay-Rong, Jeng, Horng-Tay, Miyamoto, Koji, Okuda, Taichi, Lin, Hsin, Bansil, Arun, Kaczorowski, Dariusz, Chou, Fangcheng, Hasan, M. Zahid, & Durakiewicz, Tomasz. Observation of the spin-polarized surface state in a noncentrosymmetric superconductor BiPd. United States. https://doi.org/10.1038/ncomms13315
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Neupane, Madhab, Alidoust, Nasser, Hosen, M. Mofazzel, Zhu, Jian-Xin, Dimitri, Klauss, Xu, Su-Yang, Dhakal, Nagendra, Sankar, Raman, Belopolski, Ilya, Sanchez, Daniel S., Chang, Tay-Rong, Jeng, Horng-Tay, Miyamoto, Koji, Okuda, Taichi, Lin, Hsin, Bansil, Arun, Kaczorowski, Dariusz, Chou, Fangcheng, Hasan, M. Zahid, and Durakiewicz, Tomasz. Mon . "Observation of the spin-polarized surface state in a noncentrosymmetric superconductor BiPd". United States. https://doi.org/10.1038/ncomms13315. https://www.osti.gov/servlets/purl/1352445.
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@article{osti_1352445,
title = {Observation of the spin-polarized surface state in a noncentrosymmetric superconductor BiPd},
author = {Neupane, Madhab and Alidoust, Nasser and Hosen, M. Mofazzel and Zhu, Jian-Xin and Dimitri, Klauss and Xu, Su-Yang and Dhakal, Nagendra and Sankar, Raman and Belopolski, Ilya and Sanchez, Daniel S. and Chang, Tay-Rong and Jeng, Horng-Tay and Miyamoto, Koji and Okuda, Taichi and Lin, Hsin and Bansil, Arun and Kaczorowski, Dariusz and Chou, Fangcheng and Hasan, M. Zahid and Durakiewicz, Tomasz},
abstractNote = {Recently, noncentrosymmetric superconductor BiPd has attracted considerable research interest due to the possibility of hosting topological superconductivity. Here in this paper we report a systematic high-resolution angle-resolved photoemission spectroscopy (ARPES) and spin-resolved ARPES study of the normal state electronic and spin properties of BiPd. Our experimental results show the presence of a surface state at higher-binding energy with the location of Dirac point at around 700 meV below the Fermi level. The detailed photon energy, temperature-dependent and spin-resolved ARPES measurements complemented by our first-principles calculations demonstrate the existence of the spin-polarized surface states at high-binding energy. The absence of such spin-polarized surface states near the Fermi level negates the possibility of a topological superconducting behaviour on the surface. Our direct experimental observation of spin-polarized surface states in BiPd provides critical information that will guide the future search for topological superconductivity in noncentrosymmetric materials.},
doi = {10.1038/ncomms13315},
journal = {Nature Communications},
number = ,
volume = 7,
place = {United States},
year = {Mon Nov 07 00:00:00 EST 2016},
month = {Mon Nov 07 00:00:00 EST 2016}
}
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Observation of a three-dimensional topological Dirac semimetal phase in high-mobility Cd3As2
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    Works referencing / citing this record:

    Fermi surface, possible unconventional fermions, and unusually robust resistive critical fields in the chiral-structured superconductor AuBe
    journal, March 2019

    Topological metal and noncentrosymmetric superconductor α-BiPd as an efficient candidate for the hydrogen evolution reaction
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    • He, Yuan; Yan, Dong; Ng, Li Ren
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    Superconducting topological surface states in the noncentrosymmetric bulk superconductor PbTaSe 2
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    Hydrostatic Pressure Effect on the Pinning Mechanism of α‐BiPd Noncentrosymmetric Superconductors
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    Distinct multiple fermionic states in a single topological metal
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    Superconducting Topological Surface States in Non-centrosymmetric Bulk Superconductor PbTaSe2
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    Distinct multiple fermionic states in a single topological metal
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    Observation of Gapless Dirac Surface States in ZrGeTe
    text, January 2017

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