Zero-bias conductance peak splitting due to multiband effect in tunneling spectroscopy of organic su

Zero-bias conductance peak splitting due to multiband effect in tunneling spectroscopy of organic su
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有机硫隧道光谱中多带效应导致的零偏电导峰分裂

DOI:
10.1103/physrevb.68.214513
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发表时间:
2003
期刊:
影响因子:
3.7
通讯作者:
S. Kashiwaya
S. Kashiwaya
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Y. Tanuma;K. Kuroki;Y. Tanaka;S. Kashiwaya

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研究了费米面的多重性对隧道光谱电导谱零偏峰的影响。作为个案研究,我们考虑了有机超导体$\ensuremath{\kappa}\ensuremath{-}(\mathrm{BEDT}\ensuremath{-}\mathrm{TTF}{)}_{2}\mathrm{Cu}(\mathrm{NCS}{)}_{2}$和{mathm{TMTSF}{)}{2}{\mathm{ClO}}{4}的模型。我们发现费米面的多重性会导致零偏压电导峰的分裂。我们提出用零点分裂的存在与否作为探测来区分$\ensuremath{\kappa}\ensuremath{-}(\mathrm{BEDT}\ensuremath{-}\mathrm{TTF}{)}_{2}\mathrm{Cu}(\mathrm{NCS}{)}_{2}.$中的配对对称性
We study how the multiplicity of the Fermi surface affects the zero-bias peak in conductance spectra of tunneling spectroscopy. As case studies, we consider models for organic superconductors $\ensuremath{\kappa}\ensuremath{-}(\mathrm{BEDT}\ensuremath{-}\mathrm{TTF}{)}_{2}\mathrm{Cu}(\mathrm{NCS}{)}_{2}$ and $(\mathrm{TMTSF}{)}_{2}{\mathrm{ClO}}_{4}.$ We find that the multiplicity of the Fermi surfaces can lead to a splitting of the zero-bias conductance peak (ZBCP). We propose that the presence/absence of the ZBCP splitting is used as a probe to distinguish the pairing symmetry in $\ensuremath{\kappa}\ensuremath{-}(\mathrm{BEDT}\ensuremath{-}\mathrm{TTF}{)}_{2}\mathrm{Cu}(\mathrm{NCS}{)}_{2}.$
DOI: --
发表时间: 2006
期刊: Journal of Physics and Chemistry of Solids 67
影响因子: --
作者:
H. Tsuchiura;H. Tsuchiura;H. Tsuchiura;H. Tsuchiura;N. Yamada;H. Tsuchiura;H.Tsuchiura;A. Sugimoto;Y. Asano
通讯作者: Y. Asano