Return to search

Study of phase separation in strongly correlated systems. / 強关联电子系統中相分离的研究 / Study of phase separation in strongly correlated systems. / Qiang guan lian dian zi xi tong zhong xiang fen li de yan jiu

Yu Min = 強关联电子系統中相分离的研究 / 俞敏. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2004. / Includes bibliographical references (leaves 90-91). / Text in English; abstracts in English and Chinese. / Yu Min = Qiang guan lian dian zi xi tong zhong xiang fen li de yan jiu / Yu Min. / Chapter 1 --- Introduction --- p.1 / Chapter 1.1 --- Motivation --- p.1 / Chapter 1.2 --- The Hubbard Model --- p.3 / Chapter 1.3 --- The extended Hubbard Model --- p.4 / Chapter 1.4 --- This project --- p.5 / Chapter 2 --- Methodology --- p.6 / Chapter 2.1 --- Hartree-Fock approximation --- p.6 / Chapter 2.2 --- The unrestricted Hartree-Fock method --- p.7 / Chapter 2.3 --- The restricted Hartree-Fock method --- p.10 / Chapter 2.3.1 --- "Paramagnetic phase, wave vector q = (0,0), r = 1" --- p.13 / Chapter 2.3.2 --- "Ferromagnetic phase, wave vector q = (0,0), r ≠ 1" --- p.13 / Chapter 2.3.3 --- "Wave vector g =(π,π),m ≠ 0; r = 1 antiferromagnetic phase; r≠1 ferrimagnetic phase" --- p.14 / Chapter 2.3.4 --- "Charge-density wave(CDW), wave vector q = (π, π), r≠ 1, m1≠m2" --- p.17 / Chapter 2.3.5 --- "Charge-density wave, wave vector q = (±4, ±4), r ≠1, 1,m1≠m2" --- p.19 / Chapter 2.4 --- Finite size effect in the restricted Hartree-Fock method --- p.23 / Chapter 3 --- Study of the two-dimensional Hubbard model --- p.26 / Chapter 3.1 --- Phase separation in the two-dimensional Hubbard model --- p.26 / Chapter 3.2 --- The existence of stripe phase depends on three aspects --- p.31 / Chapter 3.2.1 --- Dependence of the geometry of the lattice --- p.31 / Chapter 3.2.2 --- Dependence of the Coulomb interaction U --- p.33 / Chapter 3.2.3 --- Dependence of band filling n --- p.35 / Chapter 3.3 --- Fourier transformation of the charge distribution --- p.36 / Chapter 4 --- Study of the two-dimensional asymmetric Hubbard model --- p.40 / Chapter 4.1 --- Phase separation in the two-dimensional asymmetric Hubbard model --- p.41 / Chapter 4.2 --- The influence of t↑ on the existence of stripe phase --- p.42 / Chapter 4.3 --- Fourier transformation of the charge distribution --- p.44 / Chapter 5 --- Study of the one-dimensional Hubbard model --- p.46 / Chapter 5.1 --- The influence of U on the charge distribution --- p.46 / Chapter 5.2 --- The influence of t↑ on the charge distribution --- p.48 / Chapter 5.3 --- Conclusion --- p.50 / Chapter 6 --- Study of the extended Hubbard Model --- p.51 / Chapter 6.1 --- The influence of changing parameter V on the charge distribution --- p.52 / Chapter 6.2 --- The competing of parameter and parameter V on the charge distribution --- p.53 / Chapter 6.3 --- Conclusion --- p.59 / Chapter 7 --- Conclusions --- p.60 / Chapter A --- Program for the unrestricted Hartree-Fock method --- p.61 / Chapter B --- Program for the restricted Hartree-Fock method --- p.73

Identiferoai:union.ndltd.org:cuhk.edu.hk/oai:cuhk-dr:cuhk_324839
Date January 2004
ContributorsYu, Min., Chinese University of Hong Kong Graduate School. Division of Physics.
Source SetsThe Chinese University of Hong Kong
LanguageEnglish, Chinese
Detected LanguageEnglish
TypeText, bibliography
Formatprint, xi, 91 leaves : ill. ; 30 cm.
RightsUse of this resource is governed by the terms and conditions of the Creative Commons “Attribution-NonCommercial-NoDerivatives 4.0 International” License (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Page generated in 0.0025 seconds