Spin polarization measurements in ferromagnetic SrRuO3 using point-contact Andreev reflection technique

Masanobu Shiga, Naoto Nishimura, Yuji Inagaki, Tatsuya Kawae, Hiroshi Kambara, Kenichi Tenya

Research output: Contribution to journalConference article

2 Citations (Scopus)

Abstract

Using the point-contact Andreev reflection (PCAR) technique, we have performed spin polarization measurements in a polycrystalline SrRuO3 to study the difference of the spin polarization between the ballistic and diffusive transport samples. PCAR spectra were measured with Nb tips for T = 4.2 K with changing the contact area mechanically. The results were well fitted by the modified Blonder-Tinkham-Klapwijk (mBTK) model. We estimate the spin polarization P ≈ 0.59, which is slightly larger than that of a single crystal film with P ≈ 0.51 due to the change of transport property.

Original languageEnglish
Article number082001
JournalJournal of Physics: Conference Series
Volume807
Issue number8
DOIs
Publication statusPublished - Apr 6 2017
Event18th International Conference on Strongly Correlated Electron Systems, SCES 2016 - Hangzhou, China
Duration: May 9 2016May 13 2016

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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