Interplay of itinerant electrons and Ising moments in a hybrid honeycomb quantum magnet TmNi3Al9

Ge, H.1; Huang, C. J.2,3; Zhang, Q.1; Zhao, N.1; Yang, J.5; Wang, L.1,6; Fu, Y.1; Zhang, L.1,7; Song, Z. M.; Li, T. T.1; Ding, F.1; Xu, J. B.1; Zhang, Y. F.1; Tong, X.8,9; Wang, S. M.1; Mei, J. W.1,6; Podlesnyak, A.4; Wu, L. S.1; Chen, Gang2,3; Sheng, J. M.1,10

2022-08-29

10.1103/PhysRevB.106.054434

PHYSICAL REVIEW B   Impact Factor & Quartile

2469-9950

2469-9969

The interplay between itinerant electrons and local magnetic moments in quantum materials brings about rich and fascinating phenomena and stimulates various developments in the theoretical framework. In this work, thermodynamic, electric transport, and neutron diffraction measurements were performed on a newly synthesized honeycomb lattice magnet TmNi3Al9. Based on the experimental data, a magnetic-field-temperature phase diagram was constructed, exhibiting three essentially different magnetic regions. Below T-N = 2.97 +/- 0.02 K Tm3+, moments order antiferromagnetically in zero field. We found that the Tm3+ ions form a pseudodoublet ground state with the Ising-like moments lying normal to the two-dimensional honeycomb layers. Application of a magnetic field along the easy axis gradually suppresses the antiferromagnetic order in favor of an induced ferromagnetic state above the critical field B-c = 0.92 +/- 0.05 T. In the vicinity of B-c, a strong enhancement of the quantum spin fluctuations was observed. The quantum Ising nature of the local moments and the coupling to itinerant electrons are discussed.

SCI ; EI

English

NI Journal Papers

First ; Corresponding

National Natural Science Foundation of China["12134020","11974157","12174175","12104255"] ; Guangdong Basic and Applied Basic Research Foundation[2021B1515120015] ; National Key Research and Development Program of China[2021YFA1400400] ; Shen- zhen Key Laboratory of Advanced Quantum Functional Ma- terials and Devices[ZDSYS20190902092905285] ; Shenzhen Science and Technology Program[KQTD20200820113047086] ; Ministry of Science and Technology of China["2018YFE0103200","2021YFA1400300"] ; Shanghai Municipal Science and Technology Major Project[2019SHZDZX04] ; Research Grants Council of Hong Kong with General Research Fund[17306520]

Materials Science ; Physics

Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:000850075000003

AMER PHYSICAL SOC

20223712730754

Honeycomb structures ; Magnetic fields ; Magnetic moments ; Magnets ; Neutron diffraction ; Spin fluctuations

Structural Members and Shapes:408.2 ; Magnetism: Basic Concepts and Phenomena:701.2 ; Atomic and Molecular Physics:931.3

PHYSICS

Web of Science

1.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China
2.Univ Hong Kong, UCAS Joint Inst Theoret & Computat Phys Hong Kong, Dept Phys, Hong Kong 999077, Peoples R China
3.Univ Hong Kong, UCAS Joint Inst Theoret & Computat Phys Hong Kong, HKU, Hong Kong 999077, Peoples R China
4.Oak Ridge Natl Lab, Neutron Scattering Div, Oak Ridge, TN 37831 USA
5.Southern Univ Sci & Technol, Dept Chem, Shenzhen 518055, Peoples R China
6.Shenzhen Inst Quantum Sci & Engn, Shenzhen 518055, Peoples R China
7.Chinese Acad Sci, Ganjiang Innovat Acad, Ganzhou 341000, Peoples R China
8.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
9.Spallat Neutron Source Sci Ctr, Dongguan 523803, Peoples R China
10.Southern Univ Sci & Technol, Acad Adv Interdisciplinary Studies, Shenzhen 518055, Peoples R China

Ge, H.,Huang, C. J.,Zhang, Q.,et al. Interplay of itinerant electrons and Ising moments in a hybrid honeycomb quantum magnet TmNi3Al9[J]. PHYSICAL REVIEW B,2022,106(5).

Ge, H..,Huang, C. J..,Zhang, Q..,Zhao, N..,Yang, J..,...&Sheng, J. M..(2022).Interplay of itinerant electrons and Ising moments in a hybrid honeycomb quantum magnet TmNi3Al9.PHYSICAL REVIEW B,106(5).

Ge, H.,et al."Interplay of itinerant electrons and Ising moments in a hybrid honeycomb quantum magnet TmNi3Al9".PHYSICAL REVIEW B 106.5(2022).