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Nano Research 2024, 17(4): 3407-3412 https://doi.org/10.1007/s12274-023-6036-9
Research Article | Issue | Published: 19 August 2023

Classical spin liquid state in a rhombic lattice metal-organic framework

Show Author's Information Sihua Feng1,§,  Chao Wang1,§( ),  Jiyin Zhao2,  Xuguang Liu2,  Chaocheng Liu1,  Zeming Qi1,  Lei Chen3,  Huijuan Wang4,  Minghui Fan2,  Hengli Duan1( ),  Wensheng Yan1( )
National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, China
Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China
School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China
Experimental Center of Engineering and Material Science, University of Science and Technology of China, Hefei 230026, China

§ Sihua Feng and Chao Wang contributed equally to this work.

Keywords:
spin-liquid-like state, rhombic lattice, spin-frustrated, two-dimensional metal-organic framework (2D MOF), ultralow temperature (ULT) measurements
Topics:
Theory
Cite this article:
Feng S, Wang C, Zhao J, et al. Classical spin liquid state in a rhombic lattice metal-organic framework. Nano Research, 2024, 17(4): 3407-3412. https://doi.org/10.1007/s12274-023-6036-9
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Abstract Electronic supplementary material About this article

Discovering more and new geometrically frustrated systems remains an active point of inquiry in fundamental physics for the existence of unusual states of matter. Here, we report spin-liquid-like behavior in a two-dimensional (2D) rhombic lattice Fe-metal-organic framework (Fe-MOF) with frustrated antiferromagnetism. This Fe-MOF exhibits a high frustration factor f = |θCW|/TN ≥ 315, and its long-range magnetic order is suppressed down to 180 mK. Detailed theoretical calculations demonstrate strong antiferromagnetic coupling between adjacent Fe3+ ions, indicating the potential of a classical spin-liquid-like behavior. Notably, a T-linear heat capacity parameter, γ, originating from electronic contributions and with magnetic field independence up to 8 T, can be observed in the specific heat capacity measurements at low-temperature, providing further proof for the spin-liquid-like behavior. This work highlights the potential of MOF materials in geometrically frustrated systems, and will promote the research of exotic quantum physics phenomena.

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Publication history
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Acknowledgements

Publication history

Received: 19 June 2023
Revised: 20 July 2023
Accepted: 23 July 2023
Published: 19 August 2023
Issue date: April 2024

Copyright

© Tsinghua University Press 2023

Acknowledgements

Acknowledgements

This work was financially supported by the National Key Research and Development Program of China (No. 2021YFA1600800), the National Natural Science Foundation of China (Nos. 11975234, 12075243, 12005227, 12105286, 121350122, U2032150, 12275271, 12205305, and U1932211), the Natural Science Foundation of Anhui Province (Nos. 2208085QA14 and 2208085J13), the Users with Excellence Program of Hefei Science Center CAS (Nos. 2020HSC-UE002, 2020HSC-CIP013, 2021HSC-UE002, and 2021HSC-UE003), the Major science and technology project of Anhui Province (No. 202103a05020025), the Key Program of Research and Development of Hefei Science Center, CAS (Nos. 2021HSC-KPRD002 and 2021HSC-KPRD003), the Fundamental Research Funds for the Central Universities (No. WK 2310000103), and partially carried out at the USTC Center for Micro and Nanoscale Research and Fabrication. The authors would like to thank Beijing Synchrotron Radiation Facility (BSRF), Shanghai Synchrotron Radiation Facility (SSRF), and Beamlines MCD-A and MCD-B (Soochow Beamline for Energy Materials) at NSRL for the synchrotron beamtime. Numerical computations were performed on Hefei advanced computing center.

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