A theoretical study on orbital magnetism of mesoscopic ring systems

Masako Saito; Takahiko Sasaki; Hidetoshi Fukuyama

doi:10.1016/S1386-9477(02)01096-2

A theoretical study on orbital magnetism of mesoscopic ring systems

Masako Saito, Takahiko Sasaki, Hidetoshi Fukuyama

Research output: Contribution to journal › Conference article › peer-review

2 Citations (Scopus)

Abstract

Spatial distribution of current and resultant magnetization of mesoscopic ring systems with finite width are investigated in various regimes of temperature and magnetic field based on the exactly solvable model. The Aharonov-Bohm (AB) oscillation is observed in low temperatures when electrons occupy only one Landau sublevel. When several Landau sublevels are occupied, the coherence of the AB oscillation is destroyed and mesoscopic fluctuations appear instead. The finite Landau sublevels leads to also de Haas-van Alphen oscillations in relatively low temperatures. In high temperatures, the Landau diamagnetism is observed like in the disk systems.

Original language	English
Pages (from-to)	362-363
Number of pages	2
Journal	Physica E: Low-Dimensional Systems and Nanostructures
Volume	18
Issue number	1-3
DOIs	https://doi.org/10.1016/S1386-9477(02)01096-2
Publication status	Published - 2003 May
Externally published	Yes
Event	23rd International Conference on Low Temperature Physics - Hiroshima, Japan Duration: 2002 Aug 20 → 2002 Aug 27

Keywords

Aharonov-Bohm oscillation
De Haas-van Alphen oscillation
Mesoscopic ring with finite width
Orbital magnetism

ASJC Scopus subject areas

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

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10.1016/S1386-9477(02)01096-2

Cite this

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title = "A theoretical study on orbital magnetism of mesoscopic ring systems",

abstract = "Spatial distribution of current and resultant magnetization of mesoscopic ring systems with finite width are investigated in various regimes of temperature and magnetic field based on the exactly solvable model. The Aharonov-Bohm (AB) oscillation is observed in low temperatures when electrons occupy only one Landau sublevel. When several Landau sublevels are occupied, the coherence of the AB oscillation is destroyed and mesoscopic fluctuations appear instead. The finite Landau sublevels leads to also de Haas-van Alphen oscillations in relatively low temperatures. In high temperatures, the Landau diamagnetism is observed like in the disk systems.",

keywords = "Aharonov-Bohm oscillation, De Haas-van Alphen oscillation, Mesoscopic ring with finite width, Orbital magnetism",

author = "Masako Saito and Takahiko Sasaki and Hidetoshi Fukuyama",

note = "Funding Information: This work is supported by JSPS Research Fellowships for Young Scientists. Copyright: Copyright 2004 Elsevier Science B.V., Amsterdam. All rights reserved.; 23rd International Conference on Low Temperature Physics ; Conference date: 20-08-2002 Through 27-08-2002",

year = "2003",

month = may,

doi = "10.1016/S1386-9477(02)01096-2",

language = "English",

volume = "18",

pages = "362--363",

journal = "Physica E: Low-Dimensional Systems and Nanostructures",

issn = "1386-9477",

publisher = "Elsevier",

number = "1-3",

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TY - JOUR

T1 - A theoretical study on orbital magnetism of mesoscopic ring systems

AU - Saito, Masako

AU - Sasaki, Takahiko

AU - Fukuyama, Hidetoshi

PY - 2003/5

Y1 - 2003/5

N2 - Spatial distribution of current and resultant magnetization of mesoscopic ring systems with finite width are investigated in various regimes of temperature and magnetic field based on the exactly solvable model. The Aharonov-Bohm (AB) oscillation is observed in low temperatures when electrons occupy only one Landau sublevel. When several Landau sublevels are occupied, the coherence of the AB oscillation is destroyed and mesoscopic fluctuations appear instead. The finite Landau sublevels leads to also de Haas-van Alphen oscillations in relatively low temperatures. In high temperatures, the Landau diamagnetism is observed like in the disk systems.

AB - Spatial distribution of current and resultant magnetization of mesoscopic ring systems with finite width are investigated in various regimes of temperature and magnetic field based on the exactly solvable model. The Aharonov-Bohm (AB) oscillation is observed in low temperatures when electrons occupy only one Landau sublevel. When several Landau sublevels are occupied, the coherence of the AB oscillation is destroyed and mesoscopic fluctuations appear instead. The finite Landau sublevels leads to also de Haas-van Alphen oscillations in relatively low temperatures. In high temperatures, the Landau diamagnetism is observed like in the disk systems.

KW - Aharonov-Bohm oscillation

KW - De Haas-van Alphen oscillation

KW - Mesoscopic ring with finite width

KW - Orbital magnetism

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DO - 10.1016/S1386-9477(02)01096-2

M3 - Conference article

AN - SCOPUS:0038518295

SN - 1386-9477

VL - 18

SP - 362

EP - 363

JO - Physica E: Low-Dimensional Systems and Nanostructures

JF - Physica E: Low-Dimensional Systems and Nanostructures

IS - 1-3

T2 - 23rd International Conference on Low Temperature Physics

Y2 - 20 August 2002 through 27 August 2002

ER -

A theoretical study on orbital magnetism of mesoscopic ring systems

Abstract

Keywords

ASJC Scopus subject areas

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