Positive magnetoconductance and dephasing in strongly localized black phosphorus

Tae Ho Lee; Euyheon Hwang; Jung Bum Choi; Myung Ho Bae

doi:10.1002/pssr.201600290

Positive magnetoconductance and dephasing in strongly localized black phosphorus

Tae Ho Lee
, Euyheon Hwang
, Jung Bum Choi
, Myung Ho Bae

SKKU Advanced Institute of Nano Technology (SAINT)

Korea Research Institute of Standards and Science
Chungbuk National University
University of Science and Technology UST

Research output: Contribution to journal › Article › peer-review

Abstract

We study the magnetoconductance and dephasing in a strongly localized regime in black phosphorus (BP) devices. The phase coherence length, l_φ obtained from the magnetoconductance follows a temperature dependence of T^–1/3 in the strongly localized regime with k_Fl_e < 1 (ξ < l_φ) based on the Ioffe–Regel criterion. Here k_F, l_e and ξ are the Fermi wave vector, mean free path and localization length, respectively. The conductance behavior as a function of temperature confirms that the transport regime of our BP is in a variable-range-hopping regime, which results in the strongly localized regime.

Original language	English
Pages (from-to)	819-823
Number of pages	5
Journal	Physica Status Solidi - Rapid Research Letters
Volume	10
Issue number	11
DOIs	https://doi.org/10.1002/pssr.201600290
State	Published - 1 Nov 2016

Keywords

black phosphorus
localization
magnetoconductance
phase coherence length

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10.1002/pssr.201600290

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title = "Positive magnetoconductance and dephasing in strongly localized black phosphorus",

abstract = "We study the magnetoconductance and dephasing in a strongly localized regime in black phosphorus (BP) devices. The phase coherence length, lφ obtained from the magnetoconductance follows a temperature dependence of T–1/3 in the strongly localized regime with kFle < 1 (ξ < lφ) based on the Ioffe–Regel criterion. Here kF, le and ξ are the Fermi wave vector, mean free path and localization length, respectively. The conductance behavior as a function of temperature confirms that the transport regime of our BP is in a variable-range-hopping regime, which results in the strongly localized regime.",

keywords = "black phosphorus, localization, magnetoconductance, phase coherence length",

author = "Lee, \{Tae Ho\} and Euyheon Hwang and Choi, \{Jung Bum\} and Bae, \{Myung Ho\}",

note = "Publisher Copyright: {\textcopyright} 2016 WILEY-VCH Verlag GmbH \& Co. KGaA, Weinheim",

year = "2016",

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doi = "10.1002/pssr.201600290",

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T1 - Positive magnetoconductance and dephasing in strongly localized black phosphorus

AU - Lee, Tae Ho

AU - Hwang, Euyheon

AU - Choi, Jung Bum

AU - Bae, Myung Ho

PY - 2016/11/1

Y1 - 2016/11/1

N2 - We study the magnetoconductance and dephasing in a strongly localized regime in black phosphorus (BP) devices. The phase coherence length, lφ obtained from the magnetoconductance follows a temperature dependence of T–1/3 in the strongly localized regime with kFle < 1 (ξ < lφ) based on the Ioffe–Regel criterion. Here kF, le and ξ are the Fermi wave vector, mean free path and localization length, respectively. The conductance behavior as a function of temperature confirms that the transport regime of our BP is in a variable-range-hopping regime, which results in the strongly localized regime.

AB - We study the magnetoconductance and dephasing in a strongly localized regime in black phosphorus (BP) devices. The phase coherence length, lφ obtained from the magnetoconductance follows a temperature dependence of T–1/3 in the strongly localized regime with kFle < 1 (ξ < lφ) based on the Ioffe–Regel criterion. Here kF, le and ξ are the Fermi wave vector, mean free path and localization length, respectively. The conductance behavior as a function of temperature confirms that the transport regime of our BP is in a variable-range-hopping regime, which results in the strongly localized regime.

KW - black phosphorus

KW - localization

KW - magnetoconductance

KW - phase coherence length

UR - https://www.scopus.com/pages/publications/84991691595

U2 - 10.1002/pssr.201600290

DO - 10.1002/pssr.201600290

M3 - Article

AN - SCOPUS:84991691595

SN - 1862-6254

VL - 10

SP - 819

EP - 823

JO - Physica Status Solidi - Rapid Research Letters

JF - Physica Status Solidi - Rapid Research Letters

IS - 11

ER -

Positive magnetoconductance and dephasing in strongly localized black phosphorus

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