Spin-Dependent Tunneling in a Magnetic Field for Junctions Involving Normal and Superconducting CDW Metals

• Authors: T Ekino , A Gabovich , Mai Suan Li , M Pękała , H Szymczak , A Voitenko
• Languages of publication: EN

Abstracts

EN

The voltage, V, dependences of the differential tunnel conductance G(V) were calculated for two kinds of junctions involving normal and superconducting charge-density-wave metals (CDWMs) in the external magnetic field H. The first is a non-symmetrical junction with a CDWM electrode being biased with respect to a ferromagnet. Calculations show that the paramagnetic splitting occurs between spin-up and spin-down components of G(V), similar to what is observed when a superconducting electrode is used instead of the CDWM one. The second setup is symmetric (CDWM-I-CDWM), where I denotes an insulator. If at least one of the CDWM electrodes is normal and H≢0, G(V) will also be spin-split.

Keywords

EN

71.45.Lr; 74.50.+r; 85.75.-d

Discipline

• 74.50.+r: Tunneling phenomena; Josephson effects(for SQUIDs, see 85.25.Dq; for Josephson devices, see 85.25.Cp; for Josephson junction arrays, see 74.81.Fa)
• 71.45.Lr: Charge-density-wave systems(see also 75.30.Fv Spin-density waves)
• 85.75.-d: Magnetoelectronics; spintronics: devices exploiting spin polarized transport or integrated magnetic fields

• Journal: Acta Physica Polonica A
• Year: 2006
• Volume: 109
• Issue: 4-5
• Pages: 477-484

Dates

published

2006-04

received

2005-09-25

Contributors

author

T Ekino

• Faculty of Integrated Arts and Sciences, Hiroshima University, Higashi-Hiroshima 7398521, Japan

author

A Gabovich

• Institute of Physics, prospekt Nauki 46, Kiev, Ukraine

author

Mai Suan Li

• Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland

author

M Pękała

• Department of Chemistry, Warsaw University, Żwirki i Wigury 101, Warsaw, Poland

author

H Szymczak

• Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland

author

A Voitenko

• Institute of Physics, prospekt Nauki 46, Kiev, Ukraine

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Identifiers

DOI

10.12693/APhysPolA.109.477