magnetic-materilas-2017-posters-abstracts

14 / 27

alliedacademies
Mater Sci Nanotechnol 2017
Volume 1 Issue 3 Magnetic Materials 2017
Page 86
October 09-10, 2017 London, UK
International Conference on
Spin super fluids: From DC and AC transport
to topological hydrodynamics
So Takei
Queens College, City University of New York, USA
In this talk, I will discuss various aspects of spin superfluidity
(long-ranged, dissipationless transport of spin angular
momentum) in magnetic insulators that make it distinct from
the familiar mass and charge super fluids. I first propose the
simplest realization of the phenomenon using a spin Hall-
facilitated two-terminal device. Various U (1)-symmetry
breaking effects that lead to the suppression and the
eventual destruction of the superfluid state are introduced
and discussed. I then present ways in which superfluid-like
behavior can be restored in the presence of such detrimental
effects by considering spin transport in the AC regime and via
topological magnetic solitons.
Materials Science and Nanotechnology