Phase Diagram of Metal-Insulator Transition in System with Anderson-Hubbard Centers

被引：1
|
作者：
Skorenkyy, Yu. [1 ]
Didukh, L. [1 ]
Kramar, O. [1 ]
Dovhopyaty, Yu. [1 ]
机构：
[1] Ternopil Natl Tech Univ, Dept Phys, Ternopol, Ukraine
来源：
ACTA PHYSICA POLONICA A | 2012年 / 122卷 / 03期
关键词：
D O I：
10.12693/APhysPolA.122.532
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The model of a strongly correlated system in which periodically spaced Anderson-Hubbard centers are introduced into narrow-band metal is considered. Besides the interactions between localized magnetic moments and strong on-site Coulomb interaction, the model takes into account the hybridization of localized and band states. To study the effect of the lattice deformation on the electrical properties of the system, the phonon term and elastic energy have been taken into account. Green functions for band and localized electrons have been found. On this base, the energy spectrum has been investigated as a function of model parameters, temperature and external pressure. The criterion of the metal insulator transition for an integer value of electron concentration has been derived and the phase diagram of the metal insulator transition has been built.
引用
收藏
页码：532 / 534
页数：3
相关论文
共 50 条
  • [21] HUBBARD MODEL AND METAL-INSULATOR PHASE-TRANSITION AT HIGH-TEMPERATURES
    HEINER, E
    CZECHOSLOVAK JOURNAL OF PHYSICS, 1975, 25 (09) : 1077 - 1078
  • [22] METAL-INSULATOR TRANSITION AND LIFSHITS INSTABILITY IN HUBBARD MODEL
    WELLER, W
    PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 1972, 54 (02): : 611 - 622
  • [23] Thermodynamics of the metal-insulator transition in the extended Hubbard model
    Schueler, Malte
    van Loon, Erik G. C. P.
    Katsnelson, Mikhail, I
    Wehling, Tim O.
    SCIPOST PHYSICS, 2019, 6 (06):
  • [24] Scaling of the Level Compressibility at the Anderson Metal-Insulator Transition
    Ndawana, Macleans L.
    Roemer, Rudolf A.
    Schreiber, Michael
    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2003, 72
  • [25] Exponential Orthogonality Catastrophe at the Anderson Metal-Insulator Transition
    Kettemann, S.
    PHYSICAL REVIEW LETTERS, 2016, 117 (14)
  • [26] Anderson Metal-insulator Transition with the Atomic Kicked Rotor
    Delande, Dominique
    2012 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO), 2012,
  • [27] Covalency, double-counting, and the metal-insulator phase diagram in transition metal oxides
    Wang, Xin
    Han, M. J.
    de' Medici, Luca
    Park, Hyowon
    Marianetti, C. A.
    Millis, Andrew J.
    PHYSICAL REVIEW B, 2012, 86 (19)
  • [28] Mott-Hubbard-Anderson Metal-insulator Transition in the Falicov-Kimball Model with Local Disorder
    Minh-Tien Tran
    JOURNAL OF THE KOREAN PHYSICAL SOCIETY, 2008, 53 (06) : 3613 - 3618
  • [29] The metal-insulator transition in disordered tungsten bronzes. Results of an Anderson-Mott-Hubbard model
    Ducker, H
    Koslowski, T
    vonNiessen, W
    Tusch, MA
    Logan, DE
    JOURNAL OF NON-CRYSTALLINE SOLIDS, 1996, 205 : 32 - 42
  • [30] Metal-insulator transition in disordered tungsten bronzes. Results of an Anderson-Mott-Hubbard model
    Technische Universitaet Braunschweig, Braunschweig, Germany
    J Non Cryst Solids, pt 1 (32-42):
12345