Charge Density Modulation and the Luttinger Liquid State in MoSe2 Mirror Twin Boundaries

Xia, Yipu1; Zhang, Junqiu1; Jin, Yuanjun1,2; Ho, Wingkin1; Xu, Hu2; Xie, Maohai1

2020-08-25

10.1021/acsnano.0c05397

ACS Nano   影响因子和分区

1936-0851

1936-086X

A mirror twin-domain boundary (MTB) in mono- layer MoSe2 represents a (quasi) one-dimensional metallic system. Its electronic properties, particularly the low-energy excitations in the so-called 4 vertical bar 4P-type MTB, have drawn considerable research attention. Reports of quantum well states, charge density waves, and the Tomonaga-Luttinger liquid (TLL) have all been made. Here, by controlling the lengths of the MTBs and employing different substrates, we reveal by low-temperature scanning tunneling microscopy/spectroscopy, Friedel oscillations and quantum confinement effects causing the charge density modulations along the defect. The results are inconsistent with charge density waves. Interestingly, for graphene-supported samples, TLL in the MTBs is suggested, whereas that grown on gold, an ordinary Fermi liquid, is indicated.

1D metal QUANTUM CHAINS mirror twin-domain boundary BAND-STRUCTURE quantum well states SPIN Friedel oscillation WAVE Tomonaga-Luttinger liquid SEPARATION PHOTOEMISSION SPECTROSCOPY

SCI ; EI

英语

NI论文

其他

Collaborative Research Grant from the Research Grant Council of Hong Kong Special Administrative Region, China[C7036-17W] ; General Research Grant from the Research Grant Council of Hong Kong Special Administrative Region, China[17327316]

Chemistry ; Science & Technology - Other Topics ; Materials Science

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000566341000132

AMER CHEMICAL SOC

20204209349805

Quantum theory ; Temperature ; Mirrors ; Electronic properties ; Liquids ; Quantum Hall effect ; Fermi liquids ; Modulation ; Scanning tunneling microscopy ; Charge density ; Semiconductor quantum wells

Thermodynamics:641.1 ; Electricity: Basic Concepts and Phenomena:701.1 ; Semiconductor Devices and Integrated Circuits:714.2 ; Optical Devices and Systems:741.3 ; Classical Physics; Quantum Theory; Relativity:931 ; Quantum Theory; Quantum Mechanics:931.4

Web of Science

1.Univ Hong Kong, Phys Dept, Hong Kong, Peoples R China;
2.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Guangdong, Peoples R China

Xia, Yipu,Zhang, Junqiu,Jin, Yuanjun,et al. Charge Density Modulation and the Luttinger Liquid State in MoSe2 Mirror Twin Boundaries[J]. ACS Nano,2020,14(8):10716-10722.

Xia, Yipu,Zhang, Junqiu,Jin, Yuanjun,Ho, Wingkin,Xu, Hu,&Xie, Maohai.(2020).Charge Density Modulation and the Luttinger Liquid State in MoSe2 Mirror Twin Boundaries.ACS Nano,14(8),10716-10722.

Xia, Yipu,et al."Charge Density Modulation and the Luttinger Liquid State in MoSe2 Mirror Twin Boundaries".ACS Nano 14.8(2020):10716-10722.