Anomalous magnon Nernst effect of topological magnonic materials
نویسندگان
چکیده
منابع مشابه
Magnon Spin Nernst Effect in Antiferromagnets.
We predict that a temperature gradient can induce a magnon-mediated spin Hall response in an antiferromagnet with nontrivial magnon Berry curvature. We develop a linear response theory which gives a general condition for a Hall current to be well defined, even when the thermal Hall response is forbidden by symmetry. We apply our theory to a honeycomb lattice antiferromagnet and discuss a role o...
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متن کاملMagnonic analogs of topological Dirac semimetals
In electronic topological Dirac semimetals (DSMs) the conduction and valence bands touch at discrete points in the Brillouin zone and formDirac cones. They are robust against spin–orbit interaction (SOI) and protected by crystal symmetries. They can be driven to different topological phases by breaking the symmetries. In the low-temperature quantummagnetic systems themagnon dispersions have sim...
متن کاملMagnonic analogs of topological Dirac semimetals
In electronic topological Dirac semimetals (DSMs) the conduction and valence bands touch at discrete points in the Brillouin zone and formDirac cones. They are robust against spin–orbit interaction (SOI) and protected by crystal symmetries. They can be driven to different topological phases by breaking the symmetries. In the low-temperature quantummagnetic systems themagnon dispersions have sim...
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ژورنال
عنوان ژورنال: Journal of Physics D: Applied Physics
سال: 2018
ISSN: 0022-3727,1361-6463
DOI: 10.1088/1361-6463/aab583