Metal-insulator transition in an In0.4Ga0.6As/GaAs(311)B quantum dot superlattice

H. Z. Song; Y. Okada; K. Akahane; S. Lan; H. Z. Xu; M. Kawabe

doi:10.1016/S0375-9601(01)00286-9

Metal-insulator transition in an In_0.4Ga_0.6As/GaAs(311)B quantum dot superlattice

H. Z. Song^*
, Y. Okada
, K. Akahane
, S. Lan
, H. Z. Xu
, M. Kawabe

^*此作品的通讯作者

University of Tsukuba

科研成果: 期刊稿件 › 文章 › 同行评审

1 引用（Scopus）

摘要

We measured the in-plane photocurrent of a self-assembled In_0.4Ga_0.6As/GaAs(311)B quantum dot (QD) superlattice. A significant negative differential conductance (NDC) was found signifying an metal-insulator transition. The metal phase before NDC is argued arising from the miniband transport, which is likely controlled by acoustic-phonons scattering. The insulator-phase conduction after NDC turns out to be hopping, suggesting a field-induced miniband destruction.

源语言	英语
页（从-至）	130-135
页数	6
期刊	Physics Letters, Section A: General, Atomic and Solid State Physics
卷	284
期	2-3
DOI	https://doi.org/10.1016/S0375-9601(01)00286-9
出版状态	已出版 - 4 6月 2001
已对外发布	是

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@article{f450b45214c6412988c1cc0ef1c033e1,

title = "Metal-insulator transition in an In0.4Ga0.6As/GaAs(311)B quantum dot superlattice",

abstract = "We measured the in-plane photocurrent of a self-assembled In0.4Ga0.6As/GaAs(311)B quantum dot (QD) superlattice. A significant negative differential conductance (NDC) was found signifying an metal-insulator transition. The metal phase before NDC is argued arising from the miniband transport, which is likely controlled by acoustic-phonons scattering. The insulator-phase conduction after NDC turns out to be hopping, suggesting a field-induced miniband destruction.",

keywords = "Hopping, Metal-insulator transition, Miniband, Negative differential conductance, Photocurrent, Quantum dots",

author = "Song, \{H. Z.\} and Y. Okada and K. Akahane and S. Lan and Xu, \{H. Z.\} and M. Kawabe",

year = "2001",

month = jun,

day = "4",

doi = "10.1016/S0375-9601(01)00286-9",

language = "英语",

volume = "284",

pages = "130--135",

journal = "Physics Letters, Section A: General, Atomic and Solid State Physics",

issn = "0375-9601",

publisher = "Elsevier B.V.",

number = "2-3",

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TY - JOUR

T1 - Metal-insulator transition in an In0.4Ga0.6As/GaAs(311)B quantum dot superlattice

AU - Song, H. Z.

AU - Okada, Y.

AU - Akahane, K.

AU - Lan, S.

AU - Xu, H. Z.

AU - Kawabe, M.

PY - 2001/6/4

Y1 - 2001/6/4

N2 - We measured the in-plane photocurrent of a self-assembled In0.4Ga0.6As/GaAs(311)B quantum dot (QD) superlattice. A significant negative differential conductance (NDC) was found signifying an metal-insulator transition. The metal phase before NDC is argued arising from the miniband transport, which is likely controlled by acoustic-phonons scattering. The insulator-phase conduction after NDC turns out to be hopping, suggesting a field-induced miniband destruction.

AB - We measured the in-plane photocurrent of a self-assembled In0.4Ga0.6As/GaAs(311)B quantum dot (QD) superlattice. A significant negative differential conductance (NDC) was found signifying an metal-insulator transition. The metal phase before NDC is argued arising from the miniband transport, which is likely controlled by acoustic-phonons scattering. The insulator-phase conduction after NDC turns out to be hopping, suggesting a field-induced miniband destruction.

KW - Hopping

KW - Metal-insulator transition

KW - Miniband

KW - Negative differential conductance

KW - Photocurrent

KW - Quantum dots

UR - https://www.scopus.com/pages/publications/0035805827

U2 - 10.1016/S0375-9601(01)00286-9

DO - 10.1016/S0375-9601(01)00286-9

M3 - 文章

AN - SCOPUS:0035805827

SN - 0375-9601

VL - 284

SP - 130

EP - 135

JO - Physics Letters, Section A: General, Atomic and Solid State Physics

JF - Physics Letters, Section A: General, Atomic and Solid State Physics

IS - 2-3

ER -

Metal-insulator transition in an In0.4Ga0.6As/GaAs(311)B quantum dot superlattice

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Metal-insulator transition in an In_0.4Ga_0.6As/GaAs(311)B quantum dot superlattice