Spin polarization measurements in ferromagnetic SrRuO3 using point-contact Andreev reflection technique
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...
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| Veröffentlicht in: | Journal of physics. Conference series 2017-04, Vol.807 (8) |
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| container_title | Journal of physics. Conference series |
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| creator | Shiga, Masanobu Nishimura, Naoto Inagaki, Yuji Kawae, Tatsuya Kambara, Hiroshi Tenya, Kenichi |
| description | 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. |
| doi_str_mv | 10.1088/1742-6596/807/8/082001 |
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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.</abstract><cop>Bristol</cop><pub>IOP Publishing</pub><doi>10.1088/1742-6596/807/8/082001</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Electrons Ferromagnetism Physics Polarization (spin alignment) Single crystals Transport properties |
| title | Spin polarization measurements in ferromagnetic SrRuO3 using point-contact Andreev reflection technique |
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