U(1) x SU(2) gauge field theory of transport and magnetic relaxation in underdoped high T-c cuprates

Authors
Marchetti, PA Dai, JH Su, ZB Yu, L
Citation
Pa. Marchetti et al., U(1) x SU(2) gauge field theory of transport and magnetic relaxation in underdoped high T-c cuprates, PHYSICA C, 341, 2000, pp. 225-228
Citations number
22
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA C
ISSN journal
09214534 → ACNP
Volume
341
Year of publication
2000
Part
1
Pages
225 - 228
Database
ISI
SICI code
0921-4534(200011)341:<225:UXSGFT>2.0.ZU;2-T
Abstract
Based oil recently proposed U(1) x SU(2) Chern-Simons gauge field theory, a n interpretation of the transport and magnetic relaxation properties of und erdoped cuprates is proposed. The interplay of the doping-dependent spin ga p effect and dissipation due to gauge fluctuations gives rise to a crossove r from metallic to insulating behavior of conductivity its temperature decr eases, ill semi;quantitative agreement with experimental data. For the same reason the magnetic relaxation rate shows a maximum nearby.