BOSONIC RESONATING-VALENCE-BOND DESCRIPTION OF A DOPED ANTIFERROMAGNET

Authors
WENG ZY SHENG DN TING CS
Citation
Zy. Weng et al., BOSONIC RESONATING-VALENCE-BOND DESCRIPTION OF A DOPED ANTIFERROMAGNET, Physical review letters, 80(24), 1998, pp. 5401-5404
Citations number
14
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
80
Issue
24
Year of publication
1998
Pages
5401 - 5404
Database
ISI
SICI code
0031-9007(1998)80:24<5401:BRDOAD>2.0.ZU;2-B
Abstract
We propose a theory for a doped antiferromagnet based on the bosonic r esonating-valence-bond (RVB) description incorporating the phase strin g effect. Both antiferromagnetic and superconducting phase transitions occur naturally inside such a bosonic RVB phase. Two distinct metalli c regions-underdoping and optimum doping-are also found to be a logica l consequence; their unique features explain the recent neutron-scatte ring measurements in cuprates.