ULTRAHIGH MAGNETIC FIELD OPTICAL STUDY OF SINGLE-WALLED CARBON NANOTUBES FILM

ULTRAHIGH MAGNETIC FIELD OPTICAL STUDY OF SINGLE-WALLED CARBON NANOTUBES FILM

<p>Excitons in Single-Walled Carbon Nanotubes (SWNTs) have emerged as an ideal candidate for exploring one-dimensional (1-D) exciton physics. Exciton states which dominate optical properties of SWNTs even at room temperature, are not clarify yet. The optical absorption spectra of aligned SWNTs...

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Main Authors: Mukhtar Effendi, Hiroyuki Yokoi, Nobutsuga Minami, Eiji Kominama, Shojiro Takeyama
Format: Article
Language:English
Published: Universitas Negeri Semarang 2012-02-01
Series:Jurnal Fisika
Online Access:http://journal.unnes.ac.id/nju/index.php/jf/article/view/1642
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spelling doaj-5a61cf9553f6422cb983de78abffe58f2021-05-02T02:43:18ZengUniversitas Negeri SemarangJurnal Fisika2088-15092012-02-01121466ULTRAHIGH MAGNETIC FIELD OPTICAL STUDY OF SINGLE-WALLED CARBON NANOTUBES FILMMukhtar Effendi0Hiroyuki Yokoi1Nobutsuga Minami2Eiji Kominama3Shojiro Takeyama4Physics Study Program, Jenderal Soedirman University Jl. dr. Soeparno No. 61 Purwokerto, Kode Pos 53123, IndonesiaGraduate School of Science and Technology, Kumamoto University Kumamoto 862-8555, JapanNanotechnology Research Institute,National Institute of Industrial Science and Technology Tsukuba, Ibaraki 305-8565, JapanThe Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, JapanThe Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan<p>Excitons in Single-Walled Carbon Nanotubes (SWNTs) have emerged as an ideal candidate for exploring one-dimensional (1-D) exciton physics. Exciton states which dominate optical properties of SWNTs even at room temperature, are not clarify yet. The optical absorption spectra of aligned SWNTs films under ultra high magnetic fields up to 190 T are examined to investigate this issue. Shifting and splitting of the absorption peaks due to Aharonov-Bohm effect was observed clearly above 80 T in the configuration where the magnetic fields were applied in parallel to the alignment of SWNTs. The lowest singlet exciton state has been determined through the analysis of energy splitting of excitons by the application of magnetic fields.</p> <p> </p> <strong>Keywords: </strong>blue shift, optically active, optically inactive, red shift, single-turn coil systemhttp://journal.unnes.ac.id/nju/index.php/jf/article/view/1642
collection DOAJ
language English
format Article
sources DOAJ
author Mukhtar Effendi
Hiroyuki Yokoi
Nobutsuga Minami
Eiji Kominama
Shojiro Takeyama
spellingShingle Mukhtar Effendi
Hiroyuki Yokoi
Nobutsuga Minami
Eiji Kominama
Shojiro Takeyama
ULTRAHIGH MAGNETIC FIELD OPTICAL STUDY OF SINGLE-WALLED CARBON NANOTUBES FILM
Jurnal Fisika
author_facet Mukhtar Effendi
Hiroyuki Yokoi
Nobutsuga Minami
Eiji Kominama
Shojiro Takeyama
author_sort Mukhtar Effendi
title ULTRAHIGH MAGNETIC FIELD OPTICAL STUDY OF SINGLE-WALLED CARBON NANOTUBES FILM
title_short ULTRAHIGH MAGNETIC FIELD OPTICAL STUDY OF SINGLE-WALLED CARBON NANOTUBES FILM
title_full ULTRAHIGH MAGNETIC FIELD OPTICAL STUDY OF SINGLE-WALLED CARBON NANOTUBES FILM
title_fullStr ULTRAHIGH MAGNETIC FIELD OPTICAL STUDY OF SINGLE-WALLED CARBON NANOTUBES FILM
title_full_unstemmed ULTRAHIGH MAGNETIC FIELD OPTICAL STUDY OF SINGLE-WALLED CARBON NANOTUBES FILM
title_sort ultrahigh magnetic field optical study of single-walled carbon nanotubes film
publisher Universitas Negeri Semarang
series Jurnal Fisika
issn 2088-1509
publishDate 2012-02-01
description <p>Excitons in Single-Walled Carbon Nanotubes (SWNTs) have emerged as an ideal candidate for exploring one-dimensional (1-D) exciton physics. Exciton states which dominate optical properties of SWNTs even at room temperature, are not clarify yet. The optical absorption spectra of aligned SWNTs films under ultra high magnetic fields up to 190 T are examined to investigate this issue. Shifting and splitting of the absorption peaks due to Aharonov-Bohm effect was observed clearly above 80 T in the configuration where the magnetic fields were applied in parallel to the alignment of SWNTs. The lowest singlet exciton state has been determined through the analysis of energy splitting of excitons by the application of magnetic fields.</p> <p> </p> <strong>Keywords: </strong>blue shift, optically active, optically inactive, red shift, single-turn coil system
url http://journal.unnes.ac.id/nju/index.php/jf/article/view/1642
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