1T-TaS2 as a quantum spin liquid

被引：263

作者：

Law, K. T. ^{[1
]}

Lee, Patrick A. ^{[2
]}

机构：

[1] Hong Kong Univ Sci & Technol, Dept Phys, Hong Kong, Hong Kong, Peoples R China

[2] MIT, Dept Phys, Cambridge, MA 02139 USA

来源：

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA | 2017年 / 114卷 / 27期

基金：

美国国家科学基金会;

关键词：

spin liquid; Mott insulator; transition metal dichalcogenide; RESONATING-VALENCE-BOND; CHARGE-DENSITY WAVES; ELECTRON-MICROSCOPY; STATE; SUPERCONDUCTIVITY; PHYSICS;

D O I：

10.1073/pnas.1706769114

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

1T-TaS2 is unique among transition metal dichalcogenides in that it is understood to be a correlation-driven insulator, where the unpaired electron in a 13-site cluster experiences enough correlation to form a Mott insulator. We argue, based on existing data, that this well-known material should be considered as a quantum spin liquid, either a fully gapped Z2 spin liquid or a Dirac spin liquid. We discuss the exotic states that emerge upon doping and propose further experimental probes.

引用

页码：6996 / 7000

页数：5

共 46 条

[1] THE RESONATING VALENCE BOND STATE IN LA2CUO4 AND SUPERCONDUCTIVITY [J].

ANDERSON, PW .

SCIENCE, 1987, 235 (4793) :1196-1198

[2] RESONATING VALENCE BONDS - NEW KIND OF INSULATOR [J].

ANDERSON, PW .

MATERIALS RESEARCH BULLETIN, 1973, 8 (02) :153-160

[3] Real-Space Coexistence of the Melted Mott State and Superconductivity in Fe-Substituted 1T-TaS2 [J].

Ang, R. ;

Tanaka, Y. ;

Ieki, E. ;

Nakayama, K. ;

Sato, T. ;

Li, L. J. ;

Lu, W. J. ;

Sun, Y. P. ;

Takahashi, T. .

PHYSICAL REVIEW LETTERS, 2012, 109 (17)

[4] Spin liquids in frustrated magnets [J].

Balents, Leon .

NATURE, 2010, 464 (7286) :199-208

[5] Coherent transmutation of electrons into fractionalized anyons [J].

Barkeshli, Maissam ;

Berg, Erez ;

Kivelson, Steven .

SCIENCE, 2014, 346 (6210) :722-725

[6] THE RESONATING VALENCE BOND STATE AND HIGH-TC SUPERCONDUCTIVITY - A MEAN FIELD-THEORY [J].

BASKARAN, G ;

ZOU, Z ;

ANDERSON, PW .

SOLID STATE COMMUNICATIONS, 1987, 63 (11) :973-976

[7] OPTICAL, ELECTRICAL-TRANSPORT, AND HEAT-CAPACITY STUDIES OF SOLID-SOLUTIONS TIXTA1-XS2, ZRXTA1-XS2, AND TIXNB1-XSE2 [J].

BENDA, JA .

PHYSICAL REVIEW B, 1974, 10 (04) :1409-1420

[8] Three-dimensional metallic and two-dimensional insulating behavior in octahedral tantalum dichalcogenides [J].

Darancet, Pierre ;

Millis, Andrew J. ;

Marianetti, Chris A. .

PHYSICAL REVIEW B, 2014, 90 (04)

[9] LOW-TEMPERATURE ELECTRICAL-PROPERTIES OF 1T-TAS2 [J].

DISALVO, FJ ;

GRAEBNER, JE .

SOLID STATE COMMUNICATIONS, 1977, 23 (11) :825-828

[10] GROUND-STATE PROPERTIES OF ANISOTROPIC TRIANGULAR ANTIFERROMAGNET [J].

FAZEKAS, P ;

ANDERSON, PW .

PHILOSOPHICAL MAGAZINE, 1974, 30 (02) :423-440

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