Superconductivity, Antiferromagnetism, and Kinetic Correlation in Strongly Correlated Electron Systems
Author
Source
Advances in Condensed Matter Physics
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-10-13
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Abstract EN
We investigate the ground state of two-dimensional Hubbard model on the basis of the variational Monte Carlo method.
We use wave functions that include kinetic correlation and doublon-holon correlation beyond the Gutzwiller ansatz.
It is still not clear whether the Hubbard model accounts for high-temperature superconductivity.
The antiferromagnetic correlation plays a key role in the study of pairing mechanism because the superconductive phase exists usually close to the antiferromagnetic phase.
We investigate the stability of the antiferromagnetic state when holes are doped as a function of the Coulomb repulsion U .
We show that the antiferromagnetic correlation is suppressed as U is increased exceeding the bandwidth.
High-temperature superconductivity is possible in this region with enhanced antiferromagnetic spin fluctuation and pairing interaction.
American Psychological Association (APA)
Yanagisawa, Takashi. 2015. Superconductivity, Antiferromagnetism, and Kinetic Correlation in Strongly Correlated Electron Systems. Advances in Condensed Matter Physics،Vol. 2015, no. 2015, pp.1-5.
https://search.emarefa.net/detail/BIM-1052226
Modern Language Association (MLA)
Yanagisawa, Takashi. Superconductivity, Antiferromagnetism, and Kinetic Correlation in Strongly Correlated Electron Systems. Advances in Condensed Matter Physics No. 2015 (2015), pp.1-5.
https://search.emarefa.net/detail/BIM-1052226
American Medical Association (AMA)
Yanagisawa, Takashi. Superconductivity, Antiferromagnetism, and Kinetic Correlation in Strongly Correlated Electron Systems. Advances in Condensed Matter Physics. 2015. Vol. 2015, no. 2015, pp.1-5.
https://search.emarefa.net/detail/BIM-1052226
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1052226