[6/27] The 3rd WPI-AIMR Joint Seminar in FY2014
The 3rd WPI-AIMR Joint Seminar in FY2014
Mechanical generation of spin current
Dr. Mamoru Matsuo
(Advanced Science Research Center, Japan Atomic Energy Agency)
June 27 (Fri.), 2014 16:00-17:00
Seminar Room, 2nd floor, WPI-AIMR Main Bldg.
Spin current, a flow of spin angular momentum, is a key concept in spintronics . To create and manipulate spin currents, electromagnetic fields, magnetization dynamics, and spin-orbit coupling have been used. Recently, we have theoretically shown that spin current can be generated using mechanical motion including rigid rotation , linear acceleration , and elastic deformations . Here I will introduce the background and our recent study on spin-current generation due to mechanical motion.
Fig. Spin current generation due to rotational deformations in a nonmagnetic metal. In the presence of the surface acoustic wave, gradient of an effective magnetic field is induced along the y-axis, and spin current is generated along the y-axis.
-  S. Maekawa, S. O. Valenzuela, E. Saitoh, and T. Kimura ed. “Spin Current”, Oxford University Press (2012).
-  M. Matsuo et al., Phys. Rev. Lett 106, 076601 (2011).
-  M. Matsuo et al., Phys. Rev. B 84, 104410 (2011).
-  M. Matsuo et al., Phys. Rev. B87, 180402(R) (2013); Phys. Rev. B87, 115301 (2013).
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