Quantum-critical phase from frustrated magnetism in a strongly correlated metal

被引：80

作者：

Zhao, Hengcan ^{[1
,2
]}

Zhang, Jiahao ^{[1
,2
]}

Lyu, Meng ^{[1
,2
]}

Bachus, Sebastian ^{[3
]}

Tokiwa, Yoshifumi ^{[3
]}

Gegenwart, Philipp ^{[3
]}

Zhang, Shuai ^{[1
,2
]}

Cheng, Jinguang ^{[1
,2
,4
]}

Yang, Yi-feng ^{[1
,2
,4
]}

Chen, Genfu ^{[1
,2
,4
]}

Isikawa, Yosikazu ^{[5
]}

Si, Qimiao ^{[6
]}

Steglich, Frank ^{[1
,7
,8
]}

Sun, Peijie ^{[1
,2
,4
]}

机构：

[1] Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Inst Phys, Beijing, Peoples R China

[2] Univ Chinese Acad Sci, Sch Phys Sci, Beijing, Peoples R China

[3] Univ Augsburg, Inst Phys, Expt Phys 6, Ctr Elect Correlat & Magnetism, Augsburg, Germany

[4] Songshan Lake Mat Lab, Dongguan, Peoples R China

[5] Univ Toyama, Grad Sch Sci & Engn, Toyama, Japan

[6] Rice Univ, Dept Phys & Astron, Rice Ctr Quantum Mat, Houston, TX 77005 USA

[7] Max Planck Inst Chem Phys Solids, Dresden, Germany

[8] Zhejiang Univ, Ctr Correlated Matter, Hangzhou, Zhejiang, Peoples R China

来源：

NATURE PHYSICS | 2019年 / 15卷 / 12期

基金：

中国国家自然科学基金;

关键词：

KONDO-LATTICE; HEAVY; TRANSITIONS; LIQUIDS; DIAGRAM; PHYSICS;

D O I：

10.1038/s41567-019-0666-6

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Strange-metal phenomena often develop at the border of antiferromagnetic order in strongly correlated metals'. Previous work established that they can originate from the fluctuations anchored by the quantum-critical point associated with a continuous quantum phase transition out of the antiferromagnetic order(2-4). What is still unclear is how these phenomena can be associated with a potential new phase of matter at zero temperature. Here, we show that magnetic frustration of the 4f local moments in the distorted kagome intermetallic compound cerium palladium aluminium gives rise to such a paramagnetic quantum-critical phase. Our discovery motivates a design principle for strongly correlated metallic states with unconventional excitations.

引用

页码：1261 / +

页数：7

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