QUANTIZED SPIN CURRENTS IN 2-DIMENSIONAL CHIRAL MAGNETS

Authors
HALDANE FDM AROVAS DP
Citation
Fdm. Haldane et Dp. Arovas, QUANTIZED SPIN CURRENTS IN 2-DIMENSIONAL CHIRAL MAGNETS, Physical review. B, Condensed matter, 52(6), 1995, pp. 4223-4225
Citations number
16
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
52
Issue
6
Year of publication
1995
Pages
4223 - 4225
Database
ISI
SICI code
0163-1829(1995)52:6<4223:QSCI2C>2.0.ZU;2-A
Abstract
Two-dimensional quantum magnets in which reflection and time-reversal symmetries are broken may be classified by integers which reflect the topology of the ground state. An analogy with the quantum Hall effect exists: these integers are Chern numbers which describe a quantized sp in current response to an inhomogeneous external magnetic field. Impli cations for spontaneous chiral symmetry breaking are discussed.