Conductance peak with Zeeman splitting in normal metal-insulator-ferromagnet/superconductor tunnel junctions | Zendy

Li Xiao-Wei | Zendy

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Conductance peak with Zeeman splitting in normal metal-insulator-ferromagnet/superconductor tunnel junctions

Author(s) -

Li Xiao-Wei

Publication year - 2005

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.54.2313

Subject(s) - zeeman effect , condensed matter physics , superconductivity , ferromagnetism , conductance , insulator (electricity) , zeeman energy , metal , physics , quantum tunnelling , energy level splitting , materials science , magnetic field , quantum mechanics , optoelectronics , metallurgy

Using Bogoliubov-de Gennes equations, we obtain the self-consistent equation in a ferromagnetic superconductor. Taking into account the rough interface scatteri ng effects, in the framework of the Blonder-Tinkham-Klapwijk modelwe present t he differential conductance of the normal metal-insulator-ferromagnet/supercondu ctor (N/I/FS ) tunnel junctions. It is shown that the exchange energy Eh i n FS can lead to the Zeeman splitting of the conductance peaks;the energy differ ence between the two splitting peaks is equal to 2Eh. The differentia l con ductances in N/I/FS are suppressed by the barrier strength and rough interface s cattering strength.

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