Point-contact Andreev-reflection spectroscopy of doped manganites: Charge carrier spin-polarization and proximity effects (Review Article)
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Point-contact Andreev-reflection spectroscopy of doped manganites: Charge carrier spin-polarization and proximity effects (Review Article)
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| Creator |
Krivoruchko, V.N.
D’yachenko, A.I. Tarenkov, V.Yu. |
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| Subject |
К 75-летию со дня рождения И. К. Янсона
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| Description |
Materials with spin-polarized charge carriers are the most demanded in the spin-electronics. Particularly requested are the so-called half-metals which have the maximum attainable value of carrier spin polarization. Doped manganites are in the list of compounds with, potentially, half-metallic properties. The point-contact (PC) Andreevreflection (AR) spectroscopy is a robust and direct method to measure the degree of current spin polarization. In this report, advances in PCAR spectroscopy of ferromagnetic manganites are reviewed. The experimental results obtained on “classic” s-wave superconductor — ferromagnetic manganites PCs, as well as related theoretical models applied to deduce the actual value of charge carrier spin-polarization, are discussed. Data obtained on “proximity affected” contacts is also outlined. Systematic and repeatable nature of a number of principal experimental facts detected in the AR spectrum of proximity affected contacts suggests that some new physical phenomena have been documented here. Different models of current flow through a superconductor–half-metal ferromagnet interface, as well as possibility of unconventional superconducting proximity effect, have been discussed. |
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| Date |
2017-05-29T13:08:56Z
2017-05-29T13:08:56Z 2013 |
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| Type |
Article
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| Identifier |
Point-contact Andreev-reflection spectroscopy of doped
manganites: Charge carrier spin-polarization and
proximity effects
(Review Article) / V.N. Krivoruchko, A.I. D’yachenko, V.Yu. Tarenkov // Физика низких температур. — 2013. — Т. 39, № 3. — С. 276–292. — Бібліогр.: 118 назв. — англ.
0132-6414 PACS: 72.25.Mk, 74.45.+c, 72.25.Ba http://dspace.nbuv.gov.ua/handle/123456789/118223 |
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| Language |
en
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| Relation |
Физика низких температур
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| Publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
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