Local conductance spectra of itinerant ferromagnetic SrRuO 3 through break junction

Abstract We have measured the local differential conductance spectra ( dI / dV – V ) of an itinerant ferromagnet composed of polycrystalline SrRuO 3 using the mechanically controllable break junction technique. Below the material’s Curie temperature ( T C = 160 K), characteristic peak or dip conduct...

Full description

Saved in:
Bibliographic Details
Published inJapanese Journal of Applied Physics Vol. 55; no. 9; p. 93004
Main Authors Kambara, Hiroshi, Obinata, Yūki, Tenya, Kenichi, Tsujii, Hiroyuki
Format Journal Article
LanguageEnglish
Published 01.09.2016
Online AccessGet full text

Cover

More Information
Summary:Abstract We have measured the local differential conductance spectra ( dI / dV – V ) of an itinerant ferromagnet composed of polycrystalline SrRuO 3 using the mechanically controllable break junction technique. Below the material’s Curie temperature ( T C = 160 K), characteristic peak or dip conductance spectra are observed. The characteristic energy scale is comparable to the exchange spin splitting energy that is based on ferromagnetic band calculations. Both the peak and dip spectral shapes are explained based on the itinerant ferromagnetic characteristics of SrRuO 3 in terms of spin-dependent transmission, which is similar to the giant magnetoresistance mechanism.
ISSN:0021-4922
1347-4065
DOI:10.7567/JJAP.55.093004