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

共 35 条

[11] Multiple energy scales at a quantum critical point
Gegenwart, P.
Westerkamp, T.
Krellner, C.
Tokiwa, Y.
Paschen, S.
Geibel, C.
Steglich, F.
Abrahams, E.
Si, Q.
[J]. SCIENCE, 2007, 315 (5814) : 969 - 971
[12] Magnetic-field induced quantum critical point in YbRh2Si2 -: art. no. 056402
Gegenwart, P
Custers, J
Geibel, C
Neumaier, K
Tayama, T
Tenya, K
Trovarelli, O
Steglich, F
[J]. PHYSICAL REVIEW LETTERS, 2002, 89 (05) : 056402/1 - 056402/4
[13] Quantum criticality in heavy-fermion metals
Gegenwart, Philipp
Si, Qimiao
Steglich, Frank
[J]. NATURE PHYSICS, 2008, 4 (03) : 186 - 197
[14] Field-induced magnetic transitions and pressure-induced magnetic instability in CePdAl
Goto, T
Hane, S
Umeo, K
Takabatake, T
Isikawa, Y
[J]. JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 2002, 63 (6-8) : 1159 - 1163
[15] The physics of quantum materials
Keimer, B.
Moore, J. E.
[J]. NATURE PHYSICS, 2017, 13 (11) : 1045 - 1055
[16] Uniaxial stress tuning of geometrical frustration in a Kondo lattice
Kuechler, R.
Stingl, C.
Tokiwa, Y.
Kim, M. S.
Takabatake, T.
Gegenwart, P.
[J]. PHYSICAL REVIEW B, 2017, 96 (24)
[17] Doping a Mott insulator: Physics of high-temperature superconductivity
Lee, PA
Nagaosa, N
Wen, XG
[J]. REVIEWS OF MODERN PHYSICS, 2006, 78 (01) : 17 - 85
[18] Entropy Evolution in the Magnetic Phases of Partially Frustrated CePdAl
Lucas, S.
Grube, K.
Huang, C. -L.
Sakai, A.
Wunderlich, S.
Green, E. L.
Wosnitza, J.
Fritsch, V.
Gegenwart, P.
Stockert, O.
von Loehneysen, H.
[J]. PHYSICAL REVIEW LETTERS, 2017, 118 (10)
[19] Magnetic ordering in the frustrated Kondo lattice compound CePdAl.
NunezRegueiro, MD
Lacroix, C
Canals, B
[J]. PHYSICA C, 1997, 282 : 1885 - 1886
[20] Pressure-Induced Mott Transition in an Organic Superconductor with a Finite Doping Level
Oike, H.
Miyagawa, K.
Taniguchi, H.
Kanoda, K.
[J]. PHYSICAL REVIEW LETTERS, 2015, 114 (06)

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