Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2006-12-12
J. Phys. Soc. Jpn., Vol.76, No.5, p.054707 (2007)
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
submitted to J. Phys. Soc. Jpn.,
Scientific paper
10.1143/JPSJ.76.054707
Non-adiabatic correction to spin transfer torque arising from fast-varying spin texture is calculated treating conduction electron fully quantum mechanically. The torque is non-local in space, and is shown to equivalent to a force (due to momentum transfer) acting on the center of mass of the texture. Another kind of force exists in the adiabatic regime, and is identified to be of topological origin. These forces are shown to be the counter reaction of electric transport properties, resistivity and Hall effect, respectively.
Kohno Hiroshi
Lee Kyung-Jin
Lemaho Yann
Shibata Junya
Tatara Gen
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