Photoluminescence fine structures in the fractional quantum Hall effect regime

被引：5

作者：

Nomura, S. ^{[1
]}

Yamaguchi, M. ^{[2
]}

Tamura, H. ^{[2
]}

Akazaki, T. ^{[2
]}

Hirayama, Y. ^{[3
,4
,5
]}

Korkusinski, M. ^{[6
]}

Hawrylak, P. ^{[6
]}

机构：

[1] Univ Tsukuba, Div Phys, Tsukuba, Ibaraki 3058571, Japan

[2] NTT Corp, NTT Basic Res Labs, Atsugi, Kanagawa 2430198, Japan

[3] Tohoku Univ, Dept Phys, Fac Sci, Aoba Ku, Sendai, Miyagi 9808578, Japan

[4] Tohoku Univ, WPI AIMR, Aoba Ku, Sendai, Miyagi 9800812, Japan

[5] ERATO JST, Aoba Ku, Sendai, Miyagi 9800812, Japan

[6] Natl Res Council Canada, Emerging Technol Div, Ottawa, ON, Canada

来源：

PHYSICAL REVIEW B | 2014年 / 89卷 / 11期

关键词：

2-DIMENSIONAL ELECTRON-GAS; COMPOSITE FERMIONS; SPIN POLARIZATION; CHARGED EXCITONS; STATES; EXCITATIONS; INTEGER; FLUID;

D O I：

10.1103/PhysRevB.89.115317

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigate polarization-resolved fine structure in the photoluminescence (PL) in the fractional quantum Hall effect regime at B = 4-6 T, where small Zeeman energy allows spin-depolarized ground states. We observe up to five distinct peaks with characteristic polarization and temperature dependence in the vicinity of nu = 1/3 and quenching of the PL from triplet charged quasiexcitons at around nu = 1/4. Those findings appear to be consistent with results of exact diagonalization on a Haldane sphere including all spin configurations and are understood to be PL from fractionally charged quasiexcitons.

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页数：6

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