6 papers
Spin-valve effects in point contacts to exchange biased Co40Fe40B20 films
O. P. Balkashin, V. V. Fisun, L. Yu. Triputen +3
Nonlinear current-voltage characteristics and magnetoresistance of point contacts between a normal metal (N) and films of amorphous ferromagnet (F) Co40Fe40B20 of different thickne…
Temperature-controlled interlayer exchange coupling in strong/weak ferromagnetic multilayers: a thermo-magnetic Curie-switch
A. Kravets, A. N. Timoshevskii, B. Z. Yanchitsky +4
We investigate a novel type of interlayer exchange coupling based on driving a strong/weak/strong ferromagnetic tri-layer through the Curie point of the weakly ferromagnetic spacer…
Stimulated emission and absorption of photons in magnetic point contacts: toward metal-based spin-lasers
Yu. G. Naidyuk, O. P. Balkashin, V. V. Fisun +8
Point contacts between high anisotropy ferromagnetic SmCo5 and normal metal Cu are used to achieve a strong spin-population inversion in the contact core. Subjected to microwave ir…
Hot electrons in magnetic point contacts as a photon source
A. M. Kadigrobov, R. I. Shekhter, S. I. Kulinich +7
We propose to use a point contact between a ferromagnetic and a normal metal in the presence of a magnetic field for creating a large inverted spin-population of hot electrons in t…
Spin Torques in Point Contacts to Exchange-Biased Ferromagnetic Films
I. K. Yanson, Yu. G. Naidyuk, O. P. Balkashin +6
Hysteretic magneto-resistance of point contacts formed between non-magnetic tips and single ferromagnetic films exchange-pinned by antiferromagnetic films is investigated. The anal…
Spin Diode Based on Fe/MgO Double Tunnel Junction
A. Iovan, S. Andersson, Yu. G. Naidyuk +3
We demonstrate a spin diode consisting of a semiconductor free nano-scale Fe/MgO-based double tunnel junction. The device exhibits a near perfect spin-valve effect combined with a…