Microscopic Magnetism of Nickel-Based Infinite-Layer Superconducting Parent Compounds RNiO2 (R = La, Nd): A μSR Study

被引：0

作者：

Wu, Qiong ^{[1
]}

Fu, Ying ^{[2
]}

Wang, Le ^{[3
]}

Zhou, Xuefeng ^{[2
]}

Wang, Shanmin ^{[2
]}

Zhu, Zihao ^{[1
]}

Chen, Kaiwen ^{[1
]}

Jiang, Chengyu ^{[1
]}

Shiroka, Toni ^{[4
,5
,6
]}

Hillier, Adrian D. ^{[7
]}

Mei, Jia-Wei ^{[2
]}

Shu, Lei ^{[1
,8
]}

机构：

[1] Fudan Univ, Dept Phys, State Key Lab Surface Phys, Shanghai 200438, Peoples R China

[2] Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China

[3] Southern Univ Sci & Technol, Shenzhen Inst Quantum Sci & Engn, Shenzhen 518055, Peoples R China

[4] Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China

[5] Paul Scherrer Inst, Lab Muon Spin Spect, CH-5232 Villigen, Switzerland

[6] Swiss Fed Inst Technol, Lab Festkorperphys, CH-8093 Zurich, Switzerland

[7] STFC Rutherford Appleton Lab, ISIS Facil, Didcot OX11 0QX, Oxon, England

[8] Shanghai Res Ctr Quantum Sci, Shanghai 201315, Peoples R China

来源：

CHINESE PHYSICS LETTERS | 2024年 / 41卷 / 09期

基金：

中国国家自然科学基金;

关键词：

SPIN RELAXATION; DYNAMICS; ANTIFERROMAGNETISM; EXCITATIONS; GLASSES; NDNIO3;

D O I：

10.1088/0256-307X/41/9/097502

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

By using muon spin relaxation (mu SR) measurements, we perform a comparative study of the microscopic magnetism in the parent compounds of infinite-layer nickelate superconductors RNiO2 (R = La, Nd). In either compound, the zero-field mu SR spectra down to the lowest measured temperature reveal no long-range magnetic order. In LaNiO2, short-range spin correlations appear below T = 150 K, and spins fully freeze below T similar to 10 K. NdNiO2 exhibits a more complex spin dynamics driven by the Nd 4f and Ni 3d electron spin fluctuations. Further, it shows features suggesting the proximity to a spin-glass state occurring below T = 5 K. In both compounds, the spin behavior with temperature is further confirmed by longitudinal-field mu SR measurements. These results provide new insight into the magnetism of the parent compounds of the superconducting nickelates, crucial to understanding the microscopic origin of their superconductivity.

引用

页数：7

共 24 条

[21] Systematic Cu L2,3-edge and OK-edge XANES spectroscopy study on the infinite-layer superconductor system, (Sr,La)CuO2
Tanaka, Y.
Karppinen, M.
Lee, J. M.
Liu, R. S.
Chen, J. M.
Yamauchi, H.
SOLID STATE COMMUNICATIONS, 2008, 147 (9-10) : 370 - 373
[22] XANES study on electron doped infinite-layer Sr1-xLaxCuO2 (0<=x<=0.12) and (Sr1-yCay)(0.9)La0.1CuO2 (0<=y<=0.20) superconductors
Er, G
Kikkawa, S
Takahashi, M
Kanamaru, F
PHYSICA C, 1997, 276 (3-4): : 315 - 320
[23] XANES study on electron doped infinite-layer Sr1-xLaxCuO2 (0&lex&le0.12) and (Sr1-yCay)0.9La0.1CuO2 (0&ley&le0.20) superconductors
Er, G.
Kikkawa, S.
Takahashi, M.
Kanamaru, F.
Physica C: Superconductivity and its Applications, 1997, 276 (3-4): : 315 - 320
[24] 8 RARE-EARTH-SUBSTITUTED PB-BASED 1-2-1-2 SUPERCONDUCTING COMPOUNDS - (PB,CU)SR2(CA,R)CU2O7 (R = ND, SM, EU, GD, DY, HO, ER, TM)
LIU, HB
MORRIS, DE
PHYSICAL REVIEW B, 1991, 44 (10): : 5369 - 5372

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