Phase boundary of spin-polarized-current state of electrons in bilayer graphene

被引：0

作者：

Yan, Xin-Zhong ^{[1
]}

Ma, Yinfeng ^{[1
]}

Ting, C. S. ^{[2
]}

机构：

[1] Chinese Acad Sci, Inst Phys, POB 603, Beijing 100190, Peoples R China

[2] Univ Houston, Texas Ctr Superconduct, Houston, TX 77204 USA

来源：

PHYSICAL REVIEW B | 2016年 / 93卷 / 24期

关键词：

TRANSPORT;

D O I：

10.1103/PhysRevB.93.245158

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Using a four-band Hamiltonian, we study the phase boundary of spin-polarized-current state (SPCS) of interacting electrons in bilayer graphene. The model of spin-polarized-current state has previously been shown to resolve a number of experimental puzzles in bilayer graphene. The phase boundaries of the SPCS with and without the external voltage between the two layers are obtained in this work. An unusual phase boundary where there are two transition temperatures for a given carrier concentration is found at finite external voltage. The physics of this phenomenon is explained.

引用

页数：6

共 32 条

[1] Evidence for a spontaneous gapped state in ultraclean bilayer graphene [J].

Bao, Wenzhong ;

Velasco, Jairo, Jr. ;

Zhang, Fan ;

Jing, Lei ;

Standley, Brian ;

Smirnov, Dmitry ;

Bockrath, Marc ;

MacDonald, Allan H. ;

Lau, Chun Ning .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2012, 109 (27) :10802-10805

[2] Biased bilayer graphene: Semiconductor with a gap tunable by the electric field effect [J].

Castro, Eduardo V. ;

Novoselov, K. S. ;

Morozov, S. V. ;

Peres, N. M. R. ;

Dos Santos, J. M. B. Lopes ;

Nilsson, Johan ;

Guinea, F. ;

Geim, A. K. ;

Castro Neto, A. H. .

PHYSICAL REVIEW LETTERS, 2007, 99 (21)

[3] Spontaneously Gapped Ground State in Suspended Bilayer Graphene [J].

Freitag, F. ;

Trbovic, J. ;

Weiss, M. ;

Schoenenberger, C. .

PHYSICAL REVIEW LETTERS, 2012, 108 (06)

[4] Broken symmetry ν=0 quantum Hall states in bilayer graphene: Landau level mixing and dynamical screening [J].

Gorbar, E. V. ;

Gusynin, V. P. ;

Miransky, V. A. ;

Shovkovy, I. A. .

PHYSICAL REVIEW B, 2012, 85 (23)

[5] Screening, Kohn Anomaly, Friedel Oscillation, and RKKY Interaction in Bilayer Graphene [J].

Hwang, E. H. ;

Das Sarma, S. .

PHYSICAL REVIEW LETTERS, 2008, 101 (15)

[6] Lattice theory of pseudospin ferromagnetism in bilayer graphene: Competing interaction-induced quantum Hall states [J].

Jung, Jeil ;

Zhang, Fan ;

MacDonald, Allan H. .

PHYSICAL REVIEW B, 2011, 83 (11)

[7] Spontaneous symmetry breaking and Lifshitz transition in bilayer graphene [J].

Lemonik, Y. ;

Aleiner, I. L. ;

Toke, C. ;

Fal'ko, V. I. .

PHYSICAL REVIEW B, 2010, 82 (20)

[8] Pseudospin order in monolayer, bilayer and double-layer graphene [J].

MacDonald, A. H. ;

Jung, Jeil ;

Zhang, Fan .

PHYSICA SCRIPTA, 2012, T146

[9] Asymmetry gap in the electronic band structure of bilayer graphene [J].

McCann, Edward .

PHYSICAL REVIEW B, 2006, 74 (16)

[10] Coexistence of antiferromagnetism and d plus id superconducting correlations in the graphene bilayer [J].

Milovanovic, M. V. ;

Predin, S. .

PHYSICAL REVIEW B, 2012, 86 (19)

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