Spin Physics Theory Research Team

Our aim is to explore novel spin-related effects with extremely high efficiency in condensed matters. We thus contributes to development of spintronics, a technology using spin as well as charge of electrons, and to realization of ultrafast and high-density information technology with low energy consumption. Our particular interest is at present in a strong quantum relativistic effect in solids, which is applicable to very strong magnets and efficient conversion of spin information to an electric signal. Our main method is a field theory.

Research Fields

Physics / Engineering / Materials Sciences

Research Subjects

• Novel magnetoelectric effects based on spintronics
• Conversion mechanism of spin and charge
• Ultrafast magentization reversal by electric current and light

Publications

1. * Katsuhisa Taguchi, Jun-ichiro Ohe and Gen Tatara.:
   "Ultrafast magnetic vortex core switching driven by topological inverse Faraday effect"
   Phys. Rev. Lett. 109 , 127204 (1-5) (2012).
2. * Akihito Takeuchi, Gen Tatara.:
   "Spin Damping Monopole"
   J. Phys. Soc. Jpn. 81 033705 (1-4) (2012).
3. * Gen Tatara, Hiroshi Kohno and Junya Shibata.:
   "Microscopic Approach to Current-driven Domain Wall Dynamics"
   Phys. Rep., 468 , 213-301 (2008).
4. * Eiji Saitoh, Hideki Miyajima, Takehiro Yamaoka and Gen Tatara.:
   "Current-induced resonance and mass determination of a single magnetic domain wall"
   Nature, 432, 203-206 (2004).
5. * Gen Tatara and Hiroshi Kohno.:
   "Theory of Current-Driven Domain Wall Motion: Spin Transfer versus Momentum Transfer"
   Phys. Rev. Lett. 92, 086601-1-086601-4 (2004).
6. * Gen Tatara and Hidetoshi Fukuyama.:
   "Macroscopic Quantum Tunneling of a Domain Wall in a Ferromagnetic Metal"
   Phys. Rev. Lett. 72, 772-775 (1994).
7. * Gen Tatara and Hidetoshi Fukuyama.:
   "Macroscopic Quantum Tunneling of a Domain Wall in a Ferromagnetic Metal"
   Phys. Rev. Lett. 72, 772-775 (1994).