From Quantum Disorder to Magnetic Order in an s=½ Kagome Lattice: A Structural and Magnetic Study of Herbertsmithite at High Pressure

D. Kozlenko; A. Kusmartseva; E. Lukin; D. Keen; W. Marshall; Mark De Vries; K. V. Kamenev

doi:10.1103/PhysRevLett.108.187207

From Quantum Disorder to Magnetic Order in an s=½ Kagome Lattice: A Structural and Magnetic Study of Herbertsmithite at High Pressure

D. Kozlenko, A. Kusmartseva, E. Lukin, D. Keen, W. Marshall, Mark De Vries, K. V. Kamenev

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

Abstract

The structural and magnetic properties of deuterated herbertsmithite have been studied by means of neutron powder diffraction and magnetic susceptibility measurements in a wide range of temperatures and pressures. The experimental data demonstrate that a phase transition from the quantum-disordered spin-liquid phase to the long-range ordered antiferromagnetic phase with the Néel temperature TN=6 K is induced at P=2.5 GPa. The observed decrease of TN upon compression correlates with the anomalies in pressure behavior of Cu-O bond length and Cu-O-Cu bond angles. The reasons for the observed spin-freezing transition are discussed within the framework of the available theoretical models and the recent observation of the field-induced spin freezing.

Original language	English
Article number	187207
Number of pages	5
Journal	Physical Review Letters
Volume	108
Issue number	18
DOIs	https://doi.org/10.1103/PhysRevLett.108.187207
Publication status	Published - 4 May 2012

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10.1103/PhysRevLett.108.187207

From Quantum Disorder to Magnetic Order in an s equals 1 slash 2 Kagome Lattice _ A Structural and Magnetic Study of Herbertsmithite at High Pressure
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A new SQUID magnetometer for extreme conditions research
Kamenev, K., Attfield, P., Bos, J., Brechin, E., Harrison, A. & Huxley, A.
EPSRC
1/09/07 → 31/01/11
Project: Research

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title = "From Quantum Disorder to Magnetic Order in an s=½ Kagome Lattice: A Structural and Magnetic Study of Herbertsmithite at High Pressure",

abstract = "The structural and magnetic properties of deuterated herbertsmithite have been studied by means of neutron powder diffraction and magnetic susceptibility measurements in a wide range of temperatures and pressures. The experimental data demonstrate that a phase transition from the quantum-disordered spin-liquid phase to the long-range ordered antiferromagnetic phase with the N{\'e}el temperature TN=6 K is induced at P=2.5 GPa. The observed decrease of TN upon compression correlates with the anomalies in pressure behavior of Cu-O bond length and Cu-O-Cu bond angles. The reasons for the observed spin-freezing transition are discussed within the framework of the available theoretical models and the recent observation of the field-induced spin freezing.",

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doi = "10.1103/PhysRevLett.108.187207",

language = "English",

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From Quantum Disorder to Magnetic Order in an s=½ Kagome Lattice: A Structural and Magnetic Study of Herbertsmithite at High Pressure. / Kozlenko, D.; Kusmartseva, A.; Lukin, E.; Keen, D.; Marshall, W.; De Vries, Mark; Kamenev, K. V.

In: Physical Review Letters, Vol. 108, No. 18, 187207 , 04.05.2012.

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

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AU - Kozlenko, D.

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AU - De Vries, Mark

AU - Kamenev, K. V.

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AB - The structural and magnetic properties of deuterated herbertsmithite have been studied by means of neutron powder diffraction and magnetic susceptibility measurements in a wide range of temperatures and pressures. The experimental data demonstrate that a phase transition from the quantum-disordered spin-liquid phase to the long-range ordered antiferromagnetic phase with the Néel temperature TN=6 K is induced at P=2.5 GPa. The observed decrease of TN upon compression correlates with the anomalies in pressure behavior of Cu-O bond length and Cu-O-Cu bond angles. The reasons for the observed spin-freezing transition are discussed within the framework of the available theoretical models and the recent observation of the field-induced spin freezing.

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From Quantum Disorder to Magnetic Order in an s=½ Kagome Lattice: A Structural and Magnetic Study of Herbertsmithite at High Pressure

Abstract

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A new SQUID magnetometer for extreme conditions research

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