Spin-valve effects in point contacts to exchange biased Сo40Fe40B20 films

III Международный семинар по микроконтактной спектроскопии<br>Харьков, Украина, 8–11 сентября 2014 г.

Автор(и)

  • O.P. Balkashin B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine
  • V.V. Fisun B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine
  • L.Yu. Triputen B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine
  • S. Andersson 47 Lenin Ave., Kharkov 61103, Ukraine
  • V. Korenivski 47 Lenin Ave., Kharkov 61103, Ukraine
  • Yu.G. Naidyuk B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine

DOI:

https://doi.org/10.1063/1.4897413%20

Ключові слова:

point contacts, spin valve, spin transfer torque, exchange bias, CoFeB.

Анотація

Nonlinear current-voltage characteristics and magnetoresistance of point contacts between a normal metal (N) and films of amorphous ferromagnet (F) Сo40Fe40B20 of different thickness, exchange-biased by antiferromagnetic Mn80Ir20 are studied. A surface spin valve effect in the conductance of such F–N contacts is observed. The effect of exchange bias is found to be inversely proportional to the Сo40Fe40B20 film thickness. This behavior as well as other magneto-transport effects we observe on single exchange-pinned ferromagnetic films are similar in nature to those found in conventional three-layer spin-valves.

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Опубліковано

2014-08-19

Як цитувати

(1)
Balkashin, O.; Fisun, V.; Triputen, L.; Andersson, S.; Korenivski, V.; Naidyuk, Y. Spin-Valve Effects in Point Contacts to Exchange Biased Сo40Fe40B20 Films: III Международный семинар по микроконтактной спектроскопии
Харьков, Украина, 8–11 сентября 2014 г. Fiz. Nizk. Temp. 2014, 40, 1170-1174.

Номер

Том 40 № 10 (2014)

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