Minimal model of point contact Andreev reflection spectroscopy of multiband superconductors

被引：6
|
作者：
Romeo, F. [1 ]
Citro, R. [1 ,2 ]
机构：
[1] Univ Salerno, Dipartimento Fis ER Caianiello, I-84084 Fisciano, SA, Italy
[2] CNR SPIN Salerno, I-84084 Fisciano, SA, Italy
来源：
PHYSICAL REVIEW B | 2015年 / 91卷 / 03期
关键词：
SYMMETRY;
D O I：
10.1103/PhysRevB.91.035427
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We formulate a minimal model of point contact Andreev reflection spectroscopy of a normal-metal/multiband superconductor interface. The theory generalizes the Blonder-Tinkham-Klapwijk formulation to a multiband superconductor and it is based on the quantum waveguide theory. The proposed approach allows an analytic evaluation of the Andreev and normal reflection coefficients and thus is suitable for a data fitting of point contact experiments. The obtained differential conductance curves present distinctive features similar to those measured in the experiments on multiband superconductors, such as iron-based pnictides and MgB2.
引用
收藏
页数：7
相关论文
共 50 条
  • [1] Point-contact Andreev-reflection spectroscopy in anisotropic superconductors: The importance of directionality
    Daghero, D.
    Tortello, M.
    Pecchio, P.
    Stepanov, V. A.
    Gonnelli, R. S.
    LOW TEMPERATURE PHYSICS, 2013, 39 (03) : 199 - 210
  • [2] Anisotropic multiband superconductivity in Zn observed by simultaneous Andreev reflection and Yanson point-contact spectroscopy
    Naidyuk, Yu. G.
    Gloos, K.
    SOLID STATE COMMUNICATIONS, 2014, 184 : 29 - 33
  • [3] Point contact Andreev reflection spectroscopy on ferromagnet/superconductor bilayers
    Giubileo, F.
    Romeo, F.
    Citro, R.
    Di Bartolomeo, A.
    Attanasio, C.
    Cirillo, C.
    Polcari, A.
    Romano, P.
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2014, 503 : 158 - 161
  • [4] Point contact Andreev reflection spectroscopy of NdFeAsO0.85
    Yates, K. A.
    Cohen, L. F.
    Ren, Zhi-An
    Yang, Jie
    Lu, Wei
    Dong, Xiao-Li
    Zhao, Zhong-Xian
    SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2008, 21 (09):
  • [5] A model for critical current effects in point-contact Andreev-reflection spectroscopy
    Daghero, Dario
    Piatti, Erik
    Zhigadlo, Nikolai D. D.
    Gonnelli, Renato S. S.
    LOW TEMPERATURE PHYSICS, 2023, 49 (07) : 886 - 892
  • [6] Direct determination of the Andreev reflection probability by means of point contact spectroscopy
    Jakob, M
    Stahl, H
    Knoch, J
    Appenzeller, J
    Lengeler, B
    Hardtdegen, H
    Lüth, H
    APPLIED PHYSICS LETTERS, 2000, 76 (09) : 1152 - 1154
  • [7] Andreev reflection spectroscopy in strongly paired superconductors
    Lewandowski, Cyprian
    Lantagne-Hurtubise, Etienne
    Thomson, Alex
    Nadj-Perge, Stevan
    Alicea, Jason
    PHYSICAL REVIEW B, 2023, 107 (02)
  • [8] Anatomy of point-contact Andreev reflection spectroscopy from the experimental point of view
    Naidyuk, Yu. G.
    Gloos, K.
    LOW TEMPERATURE PHYSICS, 2018, 44 (04) : 257 - 268
  • [9] Effect of Majorana Fermions on Andreev Spectroscopy of Multiband Topological Superconductors
    Silva, A. C.
    Araujo, M. A. N.
    Sacramento, P. D.
    ACTA PHYSICA POLONICA A, 2015, 128 (02) : 210 - 212
  • [10] Experimental determination of the Andreev reflection probability using ballistic point contact spectroscopy
    Jakob, M
    Appenzeller, J
    Knoch, J
    Stahl, H
    Lengeler, B
    MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS, 2001, 15 (1-2): : 63 - 65
12345