Intrinsic magnetism in superconducting infinite-layer nickelates

被引：79

作者：

Fowlie, Jennifer ^{[1
,2
]}

Hadjimichael, Marios ^{[3
]}

Martins, Maria M. ^{[4
,5
]}

Li, Danfeng ^{[1
,6
]}

Osada, Motoki ^{[1
,7
]}

Wang, Bai Yang ^{[1
,8
]}

Lee, Kyuho ^{[1
,8
]}

Lee, Yonghun ^{[1
,2
]}

Salman, Zaher ^{[4
]}

Prokscha, Thomas ^{[4
]}

Triscone, Jean-Marc ^{[3
]}

Hwang, Harold Y. ^{[1
,2
]}

Suter, Andreas ^{[4
]}

机构：

[1] SLAC Natl Accelerator Lab, Stanford Inst Mat & Energy Sci, Menlo Pk, CA 94025 USA

[2] Stanford Univ, Dept Appl Phys, Stanford, CA 94305 USA

[3] Univ Geneva, Dept Quantum Matter Phys, Geneva, Switzerland

[4] Paul Scherrer Inst, Lab Muon Spin Spect, Villigen, Switzerland

[5] Swiss Fed Inst Technol, Adv Power Semicond Lab, Zurich, Switzerland

[6] City Univ Hong Kong, Dept Phys, Kowloon, Hong Kong, Peoples R China

[7] Stanford Univ, Dept Mat Sci & Engn, Stanford, CA 94305 USA

[8] Stanford Univ, Dept Phys, Stanford, CA 94305 USA

来源：

NATURE PHYSICS | 2022年 / 18卷 / 09期

基金：

瑞士国家科学基金会; 欧洲研究理事会; 中国国家自然科学基金;

关键词：

SPIN; EXCITATIONS;

D O I：

10.1038/s41567-022-01684-y

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The discovery of superconductivity in Nd0.8Ar0.2NiO2 (ref. (1)) introduced a new family of layered nickelate superconductors that has now been extended to include a range of strontium doping(2,3), praseodymium or lanthanum in place of neodymium(4-7), and the five-layer compound Nd6Ni5O12 (ref. (8)). A number of studies have indicated that electron correlations are strong in these materials(9-15), a feature that often leads to the emergence of magnetism. Here we report muon spin rotation/relaxation studies of a series of superconducting infinite-layer nickelates. Regardless of the rare earth ion or doping, we observe an intrinsic magnetic ground state arising from local moments on the nickel sublattice. The coexistence of magnetism-which is likely to be antiferromagnetic and short-range ordered-with superconductivity is reminiscent of some iron pnictides(16) and heavy fermion compounds(17), and qualitatively distinct from the doped cuprates(18).

引用

页码：1043 / +

页数：6

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