Photoemission Study of One-Dimensional Electronic States of (6,5), (6,6), and (7,4) Single-Walled Carbon Nanotubes

被引：0

作者：

Suzuki, Ryousuke ^{[1
]}

Kakihara, Ryusuke ^{[1
]}

Ishii, Hiroyoshi ^{[1
]}

Miyahara, Tsuneaki ^{[1
]}

Maniwa, Yutaka ^{[1
]}

Yanagi, Kazuhiro ^{[1
]}

Iwasawa, Hideaki ^{[2
]}

Shimada, Kenya ^{[2
]}

Namatame, Hirofumi ^{[2
]}

Taniguchi, Masaki ^{[2
,3
]}

机构：

[1] Tokyo Metropolitan Univ, Grad Sch Sci & Engn, Hachioji, Tokyo 1920397, Japan

[2] Hiroshima Synchrotron Radiat Ctr, Higashihiroshima, Hiroshima 7390046, Japan

[3] Hiroshima Univ, Grad Sch Sci, Higashihiroshima, Hiroshima 7398526, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2023年 / 92卷 / 02期

关键词：

OPTICAL-TRANSITIONS; LIQUID BEHAVIOR;

D O I：

10.7566/JPSJ.92.024703

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have investigated the one-dimensional electronic states of single-walled carbon nanotubes (SWCNTs) with diameters ranging from 0.8-1.4 nm by optical absorption, photoemission, and inverse photoemission measurements. In the photoemission spectra of (6,5) SWCNTs and (6,6)- and (7,4)-enriched SWCNTs, spike structures caused by Van Hove singularities (VHSs) are clearly observed. The observed VHS positions are compared with the positions calculated using the tight-binding model and density functional theory. A large curvature affects the electronic states of metallic SWCNTs with small diameters.

引用

页数：6

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