Theory of Magnetotunneling Spectroscopy in Spin Triplet p-Wave Superconductors
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概要
- 論文の詳細を見る
We study the influence of a magnetic field H on the zero bias conductance peak (ZBCP) due to zero energy Andreev bound states (ZES) in a normal metal/unconventional superconductor. For p-wave junctions, ZBCP does not split into two by H even for sufficiently low transparent junctions, where ZBCP clearly splits for d-wave. This unique property originates from the fact that for p-wave superconductors, perpendicularly injected quasiparticles form ZES, which contribute most dominantly to the tunneling conductance. In addition, we show that for P_x + ip_y-wave superconductor junctions, the height of ZBCP is sensitive to H due to the formation of a broken time reversal symmetry state. We propose that tunneling spectroscopy in the presence of a magnetic field, i.e., magnetotunneling, is a promising method of determining the pairing symmetry of unconventional superconductors.
- 社団法人日本物理学会の論文
- 2002-09-15
著者
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Kashiwaya S
Nanoelectronics Research Institute (neri) National Institute Of Advanced Industrial Science And Tech
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KUROKI Kazuhiko
Department of Applied Physics and Chemistry, The University of Electro-Communications
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Koikegami S
Jsps Tokyo
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Kuroki K
Department Of Applied Physics And Chemistry The University Of Electro-communications
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Kuroki K
Sanyo Electric Co. Osaka Jpn
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Kuroki Kazuhiko
Department Of Applied Physics And Chemistry The University Of Electro-communications
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Kuroki Kazuhiko
New Materials Research Center Sanyo Electric Co.
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Kuroki Kazuhiko
New Materials Research Center Sanyo Electric Co. Ltd.
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TANAKA Yukio
Department of Applied Physics, Nagoya University
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TANUMA Yasunari
Graduate School of Natural Science and Technology, Okoyama University
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KASHIWAYA Satoshi
Crest, Japan Science and Technology Corporation (JST)
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Kawabata Shiro
Nanotechnology Research Institute Aist
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Kashiwaya Satoshi
Crest Japan Science And Technology Corporation (jst): Electrotechnical Laboratory
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Tanaka Yukio
Department Of Applied Physics Nagoya University
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