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Josephson effect in noncentrosymmetric superconductor junctions

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Title: Josephson effect in noncentrosymmetric superconductor junctions
Authors: Asano, Yasuhiro Browse this author →KAKEN DB
Yamano, Satoshi Browse this author
Issue Date: 1-Aug-2011
Publisher: American Physical Society
Journal Title: Physical Review B
Volume: 84
Issue: 6
Start Page: 064526
Publisher DOI: 10.1103/PhysRevB.84.064526
Abstract: We discuss the Josephson current between two noncentrosymmetric superconductors. The coexistence of superconducting order parameters between the spin-singlet ΔS and the helical p-wave spin-triplet ΔT enriches a variety of low-temperature behavior of the Josephson current depending on their relative amplitudes. We will show that characteristic behaviors of the Josephson current for ΔS > ΔT are clearly different from those for ΔS < ΔT. The topologically protected zero-energysurface bound states are responsible for the clear difference. We conclude that the Josephson current reflects well the character of the topological surface states and the pairing symmetry of noncentrosymmetric superconductors.
Rights: ©2011 American Physical Society
Type: article
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 浅野 泰寛

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