Next Article in Journal
Next Article in Special Issue
Previous Article in Journal
Previous Article in Special Issue
Symmetry 2010, 2(1), 388-417; doi:10.3390/sym2010388
Article

Hartee Fock Symmetry Breaking Effects in La2CuO4: Hints for connecting the Mott and Slater Pictures and Pseudogap Prediction

1
 and 2,*
Received: 18 January 2010; in revised form: 3 February 2010 / Accepted: 11 February 2010 / Published: 22 March 2010
(This article belongs to the Special Issue Symmetry Breaking Phenomena)
Download PDF [937 KB, uploaded 22 March 2010]
Abstract: This work expands the results and derivations presented in a recent letter. It is argued that symmetry breaking Hartree-Fock (HF) solutions of a simple model of the Cu-O planes in La2CuO4, are able to describe the insulator and antiferromagnetic characters of this material. Then, this classical primer of a Mott insulator is alternatively obtained here as an exact Slater insulator within the simplest of the first principles schemes. Moreover, pseudogap HF states are also predicted. The maximal energy gap of 100 meV over the Fermi surface of this wavefunction, reasonably well matches the ARPES upper pseudogap measurements for La2CuO4 in the zero doping limit. These surprising results followed after eliminating spin and crystal symmetry constraints usually imposed on the HF orbitals. The discussion helps to clarify the role of the antiferromagnetism and pseudogaps in the physics of the HTSC materials and indicates a promising way to start conciliating the Mott and Slater pictures for the description of the transition metal oxides.
Keywords: symmetry breaking; strongly correlated electron systems; Magnetism; HTc supercondutivity; HTSC; pseudgaps; MIS; entanglement symmetry breaking; strongly correlated electron systems; Magnetism; HTc supercondutivity; HTSC; pseudgaps; MIS; entanglement
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Export to BibTeX |
EndNote


MDPI and ACS Style

Cabo-Bizet, A.; De Oca, A.C.M. Hartee Fock Symmetry Breaking Effects in La2CuO4: Hints for connecting the Mott and Slater Pictures and Pseudogap Prediction. Symmetry 2010, 2, 388-417.

AMA Style

Cabo-Bizet A, De Oca ACM. Hartee Fock Symmetry Breaking Effects in La2CuO4: Hints for connecting the Mott and Slater Pictures and Pseudogap Prediction. Symmetry. 2010; 2(1):388-417.

Chicago/Turabian Style

Cabo-Bizet, Alejandro; De Oca, Alejandro Cabo Montes. 2010. "Hartee Fock Symmetry Breaking Effects in La2CuO4: Hints for connecting the Mott and Slater Pictures and Pseudogap Prediction." Symmetry 2, no. 1: 388-417.


Symmetry EISSN 2073-8994 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert