Momentum-selective metal-insulator transition in the two-dimensional Hubbard model: An 8-site dynamical cluster approximation study

被引：79

作者：

Werner, Philipp ^{[1
]}

Gull, Emanuel ^{[2
]}

Parcollet, Olivier ^{[3
]}

Millis, Andrew J. ^{[2
]}

机构：

[1] ETH, CH-8093 Zurich, Switzerland

[2] Columbia Univ, Dept Phys, New York, NY 10027 USA

[3] CNRS, CEA, URA 2306, Inst Phys Theor,IPhT, F-91191 Gif Sur Yvette, France

来源：

PHYSICAL REVIEW B | 2009年 / 80卷 / 04期

基金：

瑞士国家科学基金会;

关键词：

MEAN-FIELD THEORY; SUPERCONDUCTING STATE;

D O I：

10.1103/PhysRevB.80.045120

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Metal-insulator transitions in the paramagnetic phase of the two-dimensional square-lattice Hubbard model are studied using the dynamical cluster approximation with eight momentum cells. We show that both the interaction-driven and the doping-driven transitions are multistage and momentum-sector specific with Fermi-liquid metal and fully gapped insulator phases separated by an intermediate phase, in which some regions of the Brillouin zone are gapped while others sustain gapless quasiparticles. We argue that this is the coarse-grained version of a gradually shrinking arc or pocket. A pronounced particle-hole asymmetry is found.

引用

收藏

页数：6

相关论文

共 39 条

[1] The ALPS project release 1.3:: Open-source software for strongly correlated systems [J].

Albuquerque, A. F. ;

Alet, F. ;

Corboz, P. ;

Dayal, P. ;

Feiguin, A. ;

Fuchs, S. ;

Gamper, L. ;

Gull, E. ;

Guertler, S. ;

Honecker, A. ;

Igarashi, R. ;

Koerner, M. ;

Kozhevnikov, A. ;

Laeuchli, A. ;

Manmana, S. R. ;

Matsumoto, M. ;

McCulloch, I. P. ;

Michel, F. ;

Noack, R. M. ;

Pawlowski, G. ;

Pollet, L. ;

Pruschke, T. ;

Schollwoeck, U. ;

Todo, S. ;

Trebst, S. ;

Troyer, M. ;

Werner, P. ;

Wessel, S. .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2007, 310 (02) :1187-1193

[2]

ALVAREZ G, 2008, SC 08, P1

[3] LDA energy bands, low-energy Hamiltonians, t', t'', t perpendicular to(k), and J perpendicular to. [J].

Andersen, OK ;

Liechtenstein, AI ;

Jepsen, O ;

Paulsen, F .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1995, 56 (12) :1573-1591

[4] Spectral kinks and mid-infrared optical conductivity of doped Mott insulators from strong electron correlations [J].

Chakraborty, Shiladitya ;

Galanakis, Dimitrios ;

Phillips, Philip .

PHYSICAL REVIEW B, 2008, 78 (21)

[5] Dynamical breakup of the Fermi surface in a doped Mott insulator [J].

Civelli, M ;

Capone, M ;

Kancharla, SS ;

Parcollet, O ;

Kotliar, G .

PHYSICAL REVIEW LETTERS, 2005, 95 (10)

[6] Valence bond dynamical mean-field theory of doped Mott insulators with nodal/antinodal differentiation [J].

Ferrero, M. ;

Cornaglia, P. S. ;

De Leo, L. ;

Parcollet, O. ;

Kotliar, G. ;

Georges, A. .

EPL, 2009, 85 (05)

[7] Dynamical mean-field theory of strongly correlated fermion systems and the limit of infinite dimensions [J].

Georges, A ;

Kotliar, G ;

Krauth, W ;

Rozenberg, MJ .

REVIEWS OF MODERN PHYSICS, 1996, 68 (01) :13-125

[8] Continuous-time auxiliary-field Monte Carlo for quantum impurity models [J].

Gull, E. ;

Werner, P. ;

Parcollet, O. ;

Troyer, M. .

EPL, 2008, 82 (05)

[9] Local order and the gapped phase of the Hubbard model: A plaquette dynamical mean-field investigation [J].

Gull, E. ;

Werner, P. ;

Wang, X. ;

Troyer, M. ;

Millis, A. J. .

EPL, 2008, 84 (03)

[10] Breakpoint in the evolution of the gap through the cuprate phase diagram [J].

Guyard, W. ;

Le Tacon, M. ;

Cazayous, M. ;

Sacuto, A. ;

Georges, A. ;

Colson, D. ;

Forget, A. .

PHYSICAL REVIEW B, 2008, 77 (02)

← 1 2 3 4 →