Correlation of Electron Tunneling and Plasmon Propagation in a Luttinger Liquid

被引：24

作者：

Zhao, Sihan ^{[1
]}

Wang, Sheng ^{[1
,2
]}

Wu, Fanqi ^{[3
]}

Shi, Wu ^{[1
,2
]}

Utama, Iqbal Bakti ^{[1
,2
,4
]}

Lyu, Tairu ^{[1
]}

Jiang, Lili ^{[1
]}

Su, Yudan ^{[5
,6
]}

Wang, Siqi ^{[7
]}

Watanabe, Kenji ^{[8
]}

Taniguchi, Takashi ^{[8
]}

Zettl, Alex ^{[1
,2
,9
,10
]}

Zhang, Xiang ^{[2
,7
,11
]}

Zhou, Chongwu ^{[3
,12
]}

Wang, Feng ^{[1
,2
,9
,10
]}

机构：

[1] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[2] Lawrence Berkeley Natl Lab, Mat Sci Div, Berkeley, CA 94720 USA

[3] Univ Southern Calif, Dept Chem Engn & Mat Sci, Los Angeles, CA 90089 USA

[4] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA

[5] Fudan Univ, State Key Lab Surface Phys, Dept Phys, Shanghai 200433, Peoples R China

[6] Fudan Univ, Key Lab Micro & Nanophoton Struct MOE, Shanghai 200433, Peoples R China

[7] Univ Calif Berkeley, NSF Nanoscale Sci & Engn Ctr NSEC, Berkeley, CA 94720 USA

[8] Natl Inst Mat Sci, 1-1 Namiki, Tsukuba, Ibaraki 3050044, Japan

[9] Univ Calif Berkeley, Kavli Energy NanoSci Inst, Berkeley, CA 94720 USA

[10] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

[11] King Abdulaziz Univ, Dept Phys, Jeddah 21589, Saudi Arabia

[12] Univ Southern Calif, Dept Elect Engn, Los Angeles, CA 90089 USA

来源：

PHYSICAL REVIEW LETTERS | 2018年 / 121卷 / 04期

关键词：

CARBON NANOTUBES; GRAPHENE PLASMONS; LOW-TEMPERATURES; QUANTUM WIRES; CONDUCTANCE; BEHAVIOR; CHARGE; MODEL;

D O I：

10.1103/PhysRevLett.121.047702

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Quantum-confined electrons in one dimension behave as a Luttinger liquid. However, unambiguous demonstration of Luttinger liquid phenomena in single-walled carbon nanotubes (SWNTs) has been challenging. Here we investigate well-defined SWNT cross junctions with a point contact between two Luttinger liquids and combine electrical transport and optical nanoscopy measurements to correlate completely different physical properties (i.e., the electron tunneling and the plasmon propagation) in the same Luttinger liquid system. The suppressed electron tunneling at SWNT junctions exhibits a power-law scaling, which yields a Luttinger liquid interaction parameter that agrees quantitatively with that independently determined from the plasmon velocity based on the near-field optical nanoscopy.

引用

页数：6

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