Correlation-induced metal insulator transition in a two-channel fermion-boson model

被引：14

作者：

Wellein, G. ^{[1
]}

Fehske, H. ^{[2
]}

Alvermann, A. ^{[2
]}

Edwards, D. M. ^{[3
]}

机构：

[1] Univ Erlangen Nurnberg, Reg Rechenzentrum Erlangen, D-91058 Erlangen, Germany

[2] Ernst Moritz Arndt Univ Greifswald, Inst Phys, D-17489 Greifswald, Germany

[3] Univ London Imperial Coll Sci Technol & Med, Dept Math, London SW7 2AZ, England

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 101卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.101.136402

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate charge transport within some background medium by means of an effective lattice model with a novel form of fermion-boson coupling. The bosons describe fluctuations of a correlated background. By analyzing ground state and spectral properties of this transport model, we show how a metal-insulator quantum phase transition can occur for the half-filled band case. We discuss the evolution of a mass-asymmetric band structure in the insulating phase and establish connections to the Mott and Peierls transition scenarios.

引用

页数：4

共 50 条

[1] Correlation-induced metal-insulator transition in the one-dimensional Anderson model
de Moura, FABF
Lyra, ML
PHYSICA A, 1999, 266 (1-4): : 465 - 470
[2] NON-LINEAR DYNAMICS OF THE FERMION-BOSON MODEL - INTERFERENCE BETWEEN REVIVALS AND THE TRANSITION TO IRREGULARITY
YOO, HI
SANCHEZMONDRAGON, JJ
EBERLY, JH
JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 1981, 14 (06): : 1383 - 1397
[3] Metal-insulator crossover in the boson-fermion model in infinite dimensions
Robin, JM
Romano, A
Ranninger, J
PHYSICAL REVIEW LETTERS, 1998, 81 (13) : 2755 - 2758
[4] Correlation-induced charge ordering in the metal-insulator transition of Ru-doped tetragonal CrO2
Biswas, S.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, 2018, 238 : 100 - 107
[5] Intra pseudogap and superconductivy pair spin and charge fluctuations and underdome metal-insulator (fermion-boson) crossover phenomena as keystone of curate physics
Abdullaev, B.
Abdullaev, D. B.
Park, C. -H.
Musakhanov, M. M.
NANOSYSTEMS-PHYSICS CHEMISTRY MATHEMATICS, 2015, 6 (06): : 803 - 824
[6] CORRELATION OF DENSITY FLUCTUATIONS AND THE METAL-INSULATOR TRANSITION IN THE ONE-DIMENSIONAL SPINLESS FERMION MODEL.
Slepchenko, B.M.
Physics of Metals and Metallography, 1984, 57 (03): : 34 - 44
[7] Correlation-induced band suppression in the two-orbital Hubbard model
Plekhanov, E.
Avella, A.
Mancini, F.
Mancini, F. P.
INTERNATIONAL CONFERENCE ON STRONGLY CORRELATED ELECTRON SYSTEMS (SCES 2010), 2011, 273
[8] Solution of the two-channel Anderson impurity model: Implications for the heavy fermion UBe13
Bolech, C.J.
Andrei, N.
Physical Review Letters, 2002, 88 (23) : 237206 - 237206
[9] Overscreening-unscreening transition in the two-channel Kondo model induced by electron-electron repulsion
Tongji Univ, Shanghai, China
Solid State Commun, 11 (795-798):
[10] Overscreening-unscreening transition in the two-channel Kondo model induced by electron-electron repulsion
Zhang, YM
Chen, H
SOLID STATE COMMUNICATIONS, 1997, 102 (11) : 795 - 798

← 1 2 3 4 5 →