TY - JOUR
T1 - Spin polarization measurements in ferromagnetic SrRuO3 using point-contact Andreev reflection technique
AU - Shiga, Masanobu
AU - Nishimura, Naoto
AU - Inagaki, Yuji
AU - Kawae, Tatsuya
AU - Kambara, Hiroshi
AU - Tenya, Kenichi
N1 - Funding Information:
This work was supported by a Grant-in-Aid for Scientific Research (Grant Nos. 25220605, 25287076, and 26600102) from the Japan Society for the Promotion of Science.
Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2017/4/6
Y1 - 2017/4/6
N2 - 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.
AB - 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.
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U2 - 10.1088/1742-6596/807/8/082001
DO - 10.1088/1742-6596/807/8/082001
M3 - Conference article
AN - SCOPUS:85018332700
SN - 1742-6588
VL - 807
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 8
M1 - 082001
T2 - 18th International Conference on Strongly Correlated Electron Systems, SCES 2016
Y2 - 9 May 2016 through 13 May 2016
ER -