Synthesis of the Elusive S = 1/2 Star Structure: A Possible Quantum Spin Liquid Candidate

Maurice Sorolla; Xiqu Wang; Hyun Joo Koo; Myung Hwan Whangbo; Allan J. Jacobson

doi:10.1021/jacs.0c00901

Synthesis of the Elusive S = ¹/₂ Star Structure: A Possible Quantum Spin Liquid Candidate

Maurice Sorolla
, Xiqu Wang
, Hyun Joo Koo
, Myung Hwan Whangbo
, Allan J. Jacobson

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

Materials with two-dimensional, geometrically frustrated, spin-¹/₂ lattices provide a fertile playground for the study of intriguing magnetic phenomena such as quantum spin liquid (QSL) behavior, but their preparation has been a challenge. In particular, the long-sought, exotic spin-¹/₂ star structure has not been experimentally realized to date. Here we report the synthesis of [(CH₃)₂(NH₂)]₃[Cu^II₃(μ₃-OH)(μ₃-SO₄)(μ₃-SO₄)₃]·0.24H₂O with an S = ¹/₂ star lattice. On the basis of the magnetic susceptibility and heat capacity measurements, the layered Cu-based compound exhibits antiferromagnetic interactions but no magnetic ordering or spin freezing down to 2 K. The spin-frustrated material appears to be a promising QSL candidate.

Original language	English
Pages (from-to)	5013-5016
Number of pages	4
Journal	Journal of the American Chemical Society
Volume	142
Issue number	11
DOIs	https://doi.org/10.1021/jacs.0c00901
Publication status	Published - 18 Mar 2020

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Copyright © 2020 American Chemical Society.

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title = "Synthesis of the Elusive S = 1/2 Star Structure: A Possible Quantum Spin Liquid Candidate",

abstract = "Materials with two-dimensional, geometrically frustrated, spin-1/2 lattices provide a fertile playground for the study of intriguing magnetic phenomena such as quantum spin liquid (QSL) behavior, but their preparation has been a challenge. In particular, the long-sought, exotic spin-1/2 star structure has not been experimentally realized to date. Here we report the synthesis of [(CH3)2(NH2)]3[CuII3(μ3-OH)(μ3-SO4)(μ3-SO4)3]·0.24H2O with an S = 1/2 star lattice. On the basis of the magnetic susceptibility and heat capacity measurements, the layered Cu-based compound exhibits antiferromagnetic interactions but no magnetic ordering or spin freezing down to 2 K. The spin-frustrated material appears to be a promising QSL candidate.",

author = "Maurice Sorolla and Xiqu Wang and Koo, \{Hyun Joo\} and Whangbo, \{Myung Hwan\} and Jacobson, \{Allan J.\}",

note = "Publisher Copyright: Copyright {\textcopyright} 2020 American Chemical Society.",

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doi = "10.1021/jacs.0c00901",

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T2 - A Possible Quantum Spin Liquid Candidate

AU - Sorolla, Maurice

AU - Wang, Xiqu

AU - Koo, Hyun Joo

AU - Whangbo, Myung Hwan

AU - Jacobson, Allan J.

PY - 2020/3/18

Y1 - 2020/3/18

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AB - Materials with two-dimensional, geometrically frustrated, spin-1/2 lattices provide a fertile playground for the study of intriguing magnetic phenomena such as quantum spin liquid (QSL) behavior, but their preparation has been a challenge. In particular, the long-sought, exotic spin-1/2 star structure has not been experimentally realized to date. Here we report the synthesis of [(CH3)2(NH2)]3[CuII3(μ3-OH)(μ3-SO4)(μ3-SO4)3]·0.24H2O with an S = 1/2 star lattice. On the basis of the magnetic susceptibility and heat capacity measurements, the layered Cu-based compound exhibits antiferromagnetic interactions but no magnetic ordering or spin freezing down to 2 K. The spin-frustrated material appears to be a promising QSL candidate.

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Synthesis of the Elusive S = ¹/₂ Star Structure: A Possible Quantum Spin Liquid Candidate

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