The 244th Special CMSM seminar   

Spintronics with magnetic insulators

Prof. Gerrit E.W. Bauer
Institute for Materials Research, Tohoku University

Date & Time: 16:00 - 17:00, May 9th (Thu), 2019.
Place: 1st Conference Room, 1st floor, Sengen.


  Magnetic insulators are versatile materials of great technological importance that attracted much interest from the spintronics community since K. Uchida, E. Saitoh c.s., demonstrated thermal and electrical actuation that allows their integration into conventional electronic and thermoelectric devices.

  The most important magnetic insulator is arguably the synthetic yttrium iron garnet (YIGs), a ferrimagnets with Curie transitions far above room temperature and record magnetic, acoustic and optical quality. The discovery of entirely new phenomena, such as the spin Seebeck effect, raised the hope for new applications for a sustainable future electronics. Recent progress includes an understanding of the temperature-dependent spin dynamics even of a complex magnet such as YIG with 80 atoms in the unit cell, interaction with the crystal lattice and optical fields, and chiral pumping of spin waves.

  I will present an overview of recent progress in the spintronics with magnetic insulators and its heterostructures with normal metals.