Andreev bound state and multiple energy gaps in the noncentrosymmetric superconductor BiPd
نویسندگان
چکیده
منابع مشابه
Anomalous Andreev bound state in noncentrosymmetric superconductors.
We study edge states of noncentrosymmetric superconductors where spin-singlet d-wave pairing mixes with spin-triplet p (or f)-wave one by spin-orbit coupling. For d(xy)-wave pairing, the obtained Andreev bound state has an anomalous dispersion as compared to conventional helical edge modes. A unique topologically protected time-reversal invariant Majorana bound state appears at the edge. The ch...
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C. Iniotakis,1 N. Hayashi,1,2 Y. Sawa,3 T. Yokoyama,3 U. May,1 Y. Tanaka,3 and M. Sigrist1,4 1Institute for Theoretical Physics, ETH Zurich, 8093 Zurich, Switzerland 2CCSE, Japan Atomic Energy Agency, Tokyo 110-0015, Japan and CREST, JST, Tokyo 110-0015, Japan 3Department of Applied Physics, Nagoya University, Nagoya, 464-8603, Japan 4Department of Physics, Kyoto University, Kyoto 606-8502, Jap...
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Recently, noncentrosymmetric superconductor BiPd has attracted considerable research interest due to the possibility of hosting topological superconductivity. Here 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 surfac...
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We discuss the properties of a ferromagnet superconductor heterostructure on the basis of a Hubbard model featuring exchange splitting in the ferromagnet and electron electron attraction in the superconductor. We have solved the spin polarized Hartree Fock Gorkov equations together with the Maxwell’s equation (Ampere’s law) fully self-consistently. We have found that a Proximity Effect Fulde Fe...
متن کاملDirac surface states and nature of superconductivity in Noncentrosymmetric BiPd
In non-magnetic bulk materials, inversion symmetry protects the spin degeneracy. If the bulk crystal structure lacks a centre of inversion, however, spin-orbit interactions lift the spin degeneracy, leading to a Rashba metal whose Fermi surfaces exhibit an intricate spin texture. In superconducting Rashba metals a pairing wavefunction constructed from these complex spin structures will generall...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2012
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.86.094520