Next Article in Journal
Diastereoselective Desymmetrization of Symmetric Dienes and its Synthetic Application
Next Article in Special Issue
Broken Time Translation Symmetry as a Model for Quantum State Reduction
Previous Article in Journal
Computed NMR Shielding Effects over Fused Aromatic / Antiaromatic Hydrocarbons
Previous Article in Special Issue
Chiral Symmetry Breaking Phenomenon Caused by a Phase Transition
Article Menu

Article Versions

Export Article

Open AccessArticle
Symmetry 2010, 2(1), 388-417; doi:10.3390/sym2010388

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

1
Departamento de Física, Centro de Aplicaciones Tecnológicas y Desarrollo Nuclear (CEADEN), Calle 30, esq. a 5ta, La Habana, Cuba
2
Grupo de Física Teórica, Instituto de Cibernética Matemática y Física (ICIMAF), Calle E, No. 309, entre 13 y 15, Vedado, La Habana, Cuba
*
Author to whom correspondence should be addressed.
Received: 18 January 2010 / Revised: 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 (CC BY 3.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

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.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Symmetry EISSN 2073-8994 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top