Microwave spin-torque excitation in a template-synthesized nanomagnet

A microwave-compatible lithography-free process is shown to allow the electrical contact of a single nanometric spin valve grown by template synthesis. The complex spin dynamics of a single nanomagnet is revealed by resonant microwave current excitations, detected electrically in the V-dc and second-harmonic voltages. The uniform modes are attributed to spin transfer torque effects, whereas the effect of oersted field may play a role in exciting the nonuniform modes.


Published in:
Physical Review B, 79, 1
Year:
2009
ISSN:
1550-235X
Keywords:
Laboratories:




 Record created 2010-04-01, last modified 2018-03-17


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