Spin transfer torques by point-contact spin injection

2009 ◽  
Author(s):  
T. Y. Chen ◽  
Y. Ji ◽  
S. X. Huang ◽  
C. L. Chien ◽  
M. D. Stiles
Keyword(s):  
Spin Injection ◽  
Point Contact ◽  
Spin Transfer

scholarly journals Spin transfer by spin injection between both interfaces of a Ni nanowire

2004 ◽  
Vol 96 (8) ◽  
pp. 4490-4493 ◽  
Author(s):  
J.-E. Wegrowe ◽  
M. Dubey ◽  
T. Wade ◽  
H.-J. Drouhin ◽  
M. Konczykowski
Keyword(s):  
Spin Injection ◽  
Spin Transfer

scholarly journals Spin-Injection Terahertz Radiation in Magnetic Junctions

2012 ◽  
Vol 190 ◽  
pp. 153-156
Author(s):  
S.G. Chigarev ◽  
E.M. Epshtein ◽  
Y.V. Gulyaev ◽  
I.V. Malikov ◽  
G.M. Mikhailov ◽  
...  
Keyword(s):  
Joule Heating ◽  
Terahertz Radiation ◽  
Room Temperature ◽  
Radiation Power ◽  
Spin Injection ◽  
Point Contact ◽  
Ferromagnetic Film ◽  
Stimulated Radiation ◽  
Radiation Processes ◽  
Thermal Background

Electromagnetic radiation of 1 - 10 THz range is observed at room temperature in a structure with a point contact between a ferromagnetic rod and a thin ferromagnetic film under electric current of high enough density. The radiation is due to nonequilibrium spin injection between the components of the structure. By estimates, the injection can lead to inverted population of the spin subbands. The radiation power exceeds by orders of magnitude the thermal background (with the Joule heating taking into account) and follows the current without inertia. Efficiency of the oscillator depends strongly on the material used and quantum efficiency may exceed the unity. It means the stimulated radiation processes play an important role.

Phase-locking in double-point-contact spin-transfer devices

Nature ◽  
2005 ◽  
Vol 437 (7057) ◽  
pp. 393-395 ◽  
Author(s):  
F. B. Mancoff ◽  
N. D. Rizzo ◽  
B. N. Engel ◽  
S. Tehrani
Keyword(s):  
Double Point ◽  
Phase Locking ◽  
Point Contact ◽  
Spin Transfer

scholarly journals Magnetization reversal driven by spin injection: A diffusive spin-transfer effect

2008 ◽  
Vol 77 (17) ◽  
Author(s):  
J.-E. Wegrowe ◽  
S. M. Santos ◽  
M.-C. Ciornei ◽  
H.-J. Drouhin ◽  
J. M. Rubí
Keyword(s):  
Magnetization Reversal ◽  
Spin Injection ◽  
Transfer Effect ◽  
Spin Transfer

Switching by point-contact spin injection in a continuous film

2004 ◽  
Vol 84 (3) ◽  
pp. 380-382 ◽  
Author(s):  
T. Y. Chen ◽  
Y. Ji ◽  
C. L. Chien
Keyword(s):  
Spin Injection ◽  
Point Contact ◽  
Continuous Film
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