The presence of Spin-Charge (SC) separation in two dimensions, which according to many is the root cause of the peculiar properties of high-T-c superconductors, is still rather controversial: theoretical results obtained through different methods and approximations apparently provide conflicting results. In this paper we prove that SC separation occurs in two dimensions, provided that the Fermi surface has. at pieces and the range of interaction is. finite but large enough. SC separation emerges from the anomalies in the Ward Identities obtained from local phase transformations depending on the Fermi surface side. Copyright (C) EPLA, 2008
Mastropietro, V. (2008). Spin-Charge separation in two dimensions. EUROPHYSICS LETTERS, 84(5), 57005-57012 [10.1209/0295-5075/84/57005].
Spin-Charge separation in two dimensions
MASTROPIETRO, VIERI
2008-01-01
Abstract
The presence of Spin-Charge (SC) separation in two dimensions, which according to many is the root cause of the peculiar properties of high-T-c superconductors, is still rather controversial: theoretical results obtained through different methods and approximations apparently provide conflicting results. In this paper we prove that SC separation occurs in two dimensions, provided that the Fermi surface has. at pieces and the range of interaction is. finite but large enough. SC separation emerges from the anomalies in the Ward Identities obtained from local phase transformations depending on the Fermi surface side. Copyright (C) EPLA, 2008I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
