Excitons in carbon nanotubes with broken time-reversal symmetry

被引：95

作者：

Zaric, S

Ostojic, GN

Shaver, J

Kono, J ^{[1
]}

Portugall, O

Frings, PH

Rikken, GLJA

Furis, M

Crooker, SA

Wei, X

Moore, VC

Hauge, RH

Smalley, RE

机构：

[1] Rice Univ, Dept Elect & Comp Engn, Houston, TX 77005 USA

[2] Lab Natl Champs Magnet Pulses, F-31432 Toulouse 04, France

[3] Los Alamos Natl Lab, Natl High Magnet Field Lab, Los Alamos, NM 87545 USA

[4] Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA

[5] Rice Univ, Dept Chem, Houston, TX 77005 USA

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 01期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.96.016406

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Near-infrared magneto-optical spectroscopy of single-walled carbon nanotubes reveals two absorption peaks with an equal strength at high magnetic fields (> 55 T). We show that the peak separation is determined by the Aharonov-Bohm phase due to the tube-threading magnetic flux, which breaks the time-reversal symmetry and lifts the valley degeneracy. This field-induced symmetry breaking thus overcomes the Coulomb-induced intervalley mixing which is predicted to make the lowest exciton state optically inactive (or dark).

引用

页数：4

共 50 条

[1] Thermopower with broken time-reversal symmetry
Saito, Keiji
Benenti, Giuliano
Casati, Giulio
Prosen, Tomaz
[J]. PHYSICAL REVIEW B, 2011, 84 (20):
[2] Superconductivity with broken time-reversal symmetry
Sigrist, M
[J]. PHYSICA B-CONDENSED MATTER, 2000, 280 (1-4) : 154 - 158
[3] Nanostructures - Time-reversal symmetry broken
Bains, S
[J]. LASER FOCUS WORLD, 2004, 40 (02): : 24 - +
[4] BROKEN TIME-REVERSAL SYMMETRY OF ANISOTROPIC SUPERFLUIDITY
KITA, T
[J]. JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1993, 62 (10) : 3539 - 3556
[5] BROKEN TIME-REVERSAL SYMMETRY AND BERRY PHASE
IHM, J
[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 1993, 7 (11): : 2109 - 2146
[6] MICROWAVE BILLIARDS WITH BROKEN TIME-REVERSAL SYMMETRY
STOFFREGEN, U
STEIN, J
STOCKMANN, HJ
KUS, M
HAAKE, F
[J]. PHYSICAL REVIEW LETTERS, 1995, 74 (14) : 2666 - 2669
[7] Cryptoferromagnetism in superconductors with a broken time-reversal symmetry
Sonin, E. B.
Logoboy, N. A.
[J]. 25TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT25), PT 5A: SUPERCONDUCTIVITY, 2009, 150 (5a):
[8] Spontaneously broken time-reversal symmetry in quantum dots
Steffens, O
Suhrke, M
Rossler, U
[J]. EUROPHYSICS LETTERS, 1998, 44 (02): : 222 - 228
[9] Onsager reciprocal relations with broken time-reversal symmetry
Luo, Rongxiang
Benenti, Giuliano
Casati, Giulio
Wang, Jiao
[J]. PHYSICAL REVIEW RESEARCH, 2020, 2 (02):
[10] Edge currents in superconductors with a broken time-reversal symmetry
Braunecker, B
Lee, PA
Wang, ZQ
[J]. PHYSICAL REVIEW LETTERS, 2005, 95 (01)

← 1 2 3 4 5 →