Conservation of spin current as a consequence of a 2D Fermi surface

The possible existence of a previously unseen conservation in the theory of Fermi liquids is proposed for a two-dimensional geometry. If the ground state can be described by a smooth curve in momentum space then one expects spin current to be conserved, as it is not the case in three dimensions. Som...

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Bibliographic Details
Published in:Physica. B, Condensed matter Condensed matter, 2000-05, Vol.280 (1), p.93-94
Main Authors: Farinas, Paulo F, Bedell, Kevin S, Studart, Nelson
Format: Article
Language:English
Subjects:
2D fermions
Fermi liquid
Quantum fluid
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Summary:The possible existence of a previously unseen conservation in the theory of Fermi liquids is proposed for a two-dimensional geometry. If the ground state can be described by a smooth curve in momentum space then one expects spin current to be conserved, as it is not the case in three dimensions. Some immediate consequences that can be checked experimentally are pointed out.
ISSN:0921-4526
1873-2135
DOI:10.1016/S0921-4526(99)01474-X