Optical mapping of properties of two-dimensional electron system in magnetic fields

Nobuaki Hayashi; Kohei Tsumura; Shintaro Nomura; Masumi Yamaguchi; Hiroyuki Tamura; Tatsushi Akazaki; Yoshiro Hirayama

doi:10.1016/j.physe.2007.09.132

Optical mapping of properties of two-dimensional electron system in magnetic fields

Nobuaki Hayashi, Kohei Tsumura, Shintaro Nomura, Masumi Yamaguchi, Hiroyuki Tamura, Tatsushi Akazaki, Yoshiro Hirayama

SCI - Physics

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

3 Citations (Scopus)

Abstract

Real-space mappings of a Hall photovoltage are performed by local laser excitation using optical microscope setup with a spatial resolution of about 2 μ m. The obtained images of broad and narrow strips presumably reflect the diffusion of the optically created electrons in the bulk and the edge states. The image near a current contact is considered to reflect the potential gradient near the contact.

Original language	English
Pages (from-to)	1533-1535
Number of pages	3
Journal	Physica E: Low-Dimensional Systems and Nanostructures
Volume	40
Issue number	5
DOIs	https://doi.org/10.1016/j.physe.2007.09.132
Publication status	Published - 2008 Mar

Keywords

Edge channel
Photocurrent

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics

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10.1016/j.physe.2007.09.132

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Optical mapping of properties of two-dimensional electron system in magnetic fields. / Hayashi, Nobuaki; Tsumura, Kohei; Nomura, Shintaro; Yamaguchi, Masumi; Tamura, Hiroyuki; Akazaki, Tatsushi; Hirayama, Yoshiro.

In: Physica E: Low-Dimensional Systems and Nanostructures, Vol. 40, No. 5, 03.2008, p. 1533-1535.

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

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title = "Optical mapping of properties of two-dimensional electron system in magnetic fields",

abstract = "Real-space mappings of a Hall photovoltage are performed by local laser excitation using optical microscope setup with a spatial resolution of about 2 μ m. The obtained images of broad and narrow strips presumably reflect the diffusion of the optically created electrons in the bulk and the edge states. The image near a current contact is considered to reflect the potential gradient near the contact.",

keywords = "Edge channel, Photocurrent",

author = "Nobuaki Hayashi and Kohei Tsumura and Shintaro Nomura and Masumi Yamaguchi and Hiroyuki Tamura and Tatsushi Akazaki and Yoshiro Hirayama",

note = "Funding Information: This work was partly supported by the Grant-in-Aid for Scientific Research from Japan Society for the Promotion of Science. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.",

year = "2008",

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doi = "10.1016/j.physe.2007.09.132",

language = "English",

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AU - Hayashi, Nobuaki

AU - Tsumura, Kohei

AU - Nomura, Shintaro

AU - Yamaguchi, Masumi

AU - Tamura, Hiroyuki

AU - Akazaki, Tatsushi

AU - Hirayama, Yoshiro

N1 - Funding Information: This work was partly supported by the Grant-in-Aid for Scientific Research from Japan Society for the Promotion of Science. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.

PY - 2008/3

Y1 - 2008/3

N2 - Real-space mappings of a Hall photovoltage are performed by local laser excitation using optical microscope setup with a spatial resolution of about 2 μ m. The obtained images of broad and narrow strips presumably reflect the diffusion of the optically created electrons in the bulk and the edge states. The image near a current contact is considered to reflect the potential gradient near the contact.

AB - Real-space mappings of a Hall photovoltage are performed by local laser excitation using optical microscope setup with a spatial resolution of about 2 μ m. The obtained images of broad and narrow strips presumably reflect the diffusion of the optically created electrons in the bulk and the edge states. The image near a current contact is considered to reflect the potential gradient near the contact.

KW - Edge channel

KW - Photocurrent

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JO - Physica E: Low-Dimensional Systems and Nanostructures

JF - Physica E: Low-Dimensional Systems and Nanostructures

SN - 1386-9477

IS - 5

ER -

Optical mapping of properties of two-dimensional electron system in magnetic fields

Abstract

Keywords

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