Coupled antiferromagnetic spin- 12 chains in green dioptase Cu6[Si6O18]·6H2O

Podlesnyak, Andrey A; Kolesnikov, Alexander I; Matsuda, Masaaki; Prisk, Timothy R; Toth, Sandor; Ehlers, Georg

doi:10.1103/PhysRevB.93.064426

Title: Coupled antiferromagnetic spin- $\frac{1}{2}$ chains in green dioptase ${Cu}_{6} [{Si}_{6} O_{18}] \cdot 6 H_{2} O$

Abstract

In this paper, we report inelastic neutron scattering measurements of the magnetic excitations of green dioptase Cu₆[Si₆O₁₈]∙6H₂O. The observed spectrum contains two magnetic modes and a prominent spin gap that is consistent with the ordered ground state of Cu moments coupled antiferromagnetically in spiral chains along the c axis and ferromagnetically in ab planes on the hexagonal cell. The data are in excellent agreement with a spin- $\frac{1}{2}$ Hamiltonian that includes antiferromagnetic nearest-neighbor intrachain coupling J_c=10.6(1) meV, ferromagnetic interchain coupling J_ab=₋1.2 (1) meV, and exchange anisotropy ΔJ_c=0.14(1) meV. We calculated the sublattice magnetization to be strongly reduced, ~0.39μ_B. This appears compatible with a reduced Néel temperature, T_N=14.5K<_c, and can be explained by a presence of quantum spin fluctuations

Authors:

Podlesnyak, Andrey A ^[1]; Larry M. Anovitz; Kolesnikov, Alexander I ^[1]; Matsuda, Masaaki ^[1]; Prisk, Timothy R ^[1]; Toth, Sandor ^[2]; Ehlers, Georg ^[1]

Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Paul Scherrer Inst. (PSI), Villigen (Switzerland)

Publication Date:: Mon Feb 01 00:00:00 EST 2016

Research Org.:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). High Flux Isotope Reactor (HFIR), Spallation Neutron Source; Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Spallation Neutron Source (SNS)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

OSTI Identifier:: 1239762

Alternate Identifier(s):: OSTI ID: 1238964; OSTI ID: 1261517

Grant/Contract Number:: AC05-00OR22725

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review B

Additional Journal Information:: Journal Volume: 93; Journal Issue: 6; Journal ID: ISSN 2469-9950

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats


                    Podlesnyak, Andrey A, Larry M. Anovitz, Kolesnikov, Alexander I, Matsuda, Masaaki, Prisk, Timothy R, Toth, Sandor, and Ehlers, Georg. Coupled antiferromagnetic spin- 12 chains in green dioptase Cu6[Si6O18]·6H2O.  United States: N. p., 2016. 
Web.  doi:10.1103/PhysRevB.93.064426.

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                    Podlesnyak, Andrey A, Larry M. Anovitz, Kolesnikov, Alexander I, Matsuda, Masaaki, Prisk, Timothy R, Toth, Sandor, & Ehlers, Georg. Coupled antiferromagnetic spin- 12 chains in green dioptase Cu6[Si6O18]·6H2O.  United States.  https://doi.org/10.1103/PhysRevB.93.064426

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                    Podlesnyak, Andrey A, Larry M. Anovitz, Kolesnikov, Alexander I, Matsuda, Masaaki, Prisk, Timothy R, Toth, Sandor, and Ehlers, Georg. Mon .  
"Coupled antiferromagnetic spin- 12 chains in green dioptase Cu6[Si6O18]·6H2O".  United States.  https://doi.org/10.1103/PhysRevB.93.064426.  https://www.osti.gov/servlets/purl/1239762.

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@article{osti_1239762,

  title        = {Coupled antiferromagnetic spin- 12 chains in green dioptase Cu6[Si6O18]·6H2O},

  author       = {Podlesnyak, Andrey A and Larry M. Anovitz and Kolesnikov, Alexander I and Matsuda, Masaaki and Prisk, Timothy R and Toth, Sandor and Ehlers, Georg},

  abstractNote = {In this paper, we report inelastic neutron scattering measurements of the magnetic excitations of green dioptase Cu6[Si6O18]∙6H2O. The observed spectrum contains two magnetic modes and a prominent spin gap that is consistent with the ordered ground state of Cu moments coupled antiferromagnetically in spiral chains along the c axis and ferromagnetically in ab planes on the hexagonal cell. The data are in excellent agreement with a spin- 12Hamiltonian that includes antiferromagnetic nearest-neighbor intrachain coupling Jc=10.6(1) meV, ferromagnetic interchain coupling Jab=₋1.2 (1) meV, and exchange anisotropy ΔJc=0.14(1) meV. We calculated the sublattice magnetization to be strongly reduced, ~0.39μB. This appears compatible with a reduced Néel temperature, TN=14.5K<c, and can be explained by a presence of quantum spin fluctuations},

  doi          = {10.1103/PhysRevB.93.064426},

  journal      = {Physical Review B},

  number       = 6,

  volume       = 93,

  place        = {United States},

  year         = {Mon Feb 01 00:00:00 EST 2016},

  month        = {Mon Feb 01 00:00:00 EST 2016}

}

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Works referenced in this record:

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Large quantum fluctuations in the strongly coupled spin- $\frac{1}{2}$ chains of green dioptase ${Cu}_{6} {Si}_{6} O_{18} \cdot 6 H_{2} O$
journal, July 2010

Janson, O.; Tsirlin, A. A.; Schmitt, M.
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European Journal of Inorganic Chemistry, Vol. 2019, Issue 8
DOI: 10.1002/ejic.201801076

Quantum magnetism in minerals
journal, July 2018

Inosov, D. S.
Advances in Physics, Vol. 67, Issue 3
DOI: 10.1080/00018732.2018.1571986

Quantum Magnetism in Minerals
text, January 2018

Inosov, D. S.
arXiv
DOI: 10.48550/arxiv.1806.10967

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Title: Coupled antiferromagnetic spin- 1 2 chains in green dioptase Cu 6 [ Si 6 O 18 ] · 6 H 2 O

Abstract

Citation Formats

Die Struktur des Dioptas, Cu 6 (Si 6 O 18 ).6H 2 O journal, July 1955

Structural and chemical varieties of dioptase, Cu 6 [Si 6 O 18 ] · 6H 2 O: II. Structural properties journal, January 1989

Proton Resonance in Dioptase (CuSiO 3 ·H 2 O) 6 journal, October 1958

Further Evidence for a Magnetic Transition in Dioptase journal, March 1964

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Title: Coupled antiferromagnetic spin- $\frac{1}{2}$ chains in green dioptase ${Cu}_{6} [{Si}_{6} O_{18}] \cdot 6 H_{2} O$

Die Struktur des Dioptas, Cu ₆ (Si ₆ O ₁₈ ).6H ₂ O
journal, July 1955

Structural and chemical varieties of dioptase, Cu ₆ [Si ₆ O ₁₈ ] · 6H ₂ O: II. Structural properties
journal, January 1989

Proton Resonance in Dioptase (CuSiO ₃ ·H ₂ O) ₆
journal, October 1958

Further Evidence for a Magnetic Transition in Dioptase
journal, March 1964

Magnetic properties of green dioptase CuSiO3H2O and of black dioptase CuSiO3, and magnetic structure of black dioptase
journal, July 1993

Thermodynamic properties of copper silicate: dioptase: Cu6Si6O18·6H2O
journal, May 1993

The charge-density distribution, its multipole refinement and the antiferromagnetic structure of dioptase, Cu 6 [Si 6 O 18 ]·6H 2 O
journal, July 2002

Quantum phase transition in the dioptase magnetic lattice
journal, October 2002

Large quantum fluctuations in the strongly coupled spin- $\frac{1}{2}$ chains of green dioptase ${Cu}_{6} {Si}_{6} O_{18} \cdot 6 H_{2} O$
journal, July 2010

Description of Anhydrous (Black) Dioptase as a S = 1/2 Uniform Antiferromagnetic Chain System
journal, January 2010

The new cold neutron chopper spectrometer at the Spallation Neutron Source: Design and performance
journal, August 2011

Mantid—Data analysis and visualization package for neutron scattering and $μ$ SR experiments
journal, November 2014

DAVE: A Comprehensive Software Suite for the Reduction, Visualization, and Analysis of Low Energy Neutron Spectroscopic Data
journal, November 2009

Linear spin wave theory for single-Q incommensurate magnetic structures
journal, March 2015

Neutron inelastic scattering from isolated clusters of magnetic ions
journal, December 1979

Most spin-1/2 transition-metal ions do have single ion anisotropy
journal, September 2014

Thermodynamic parameters of the T=0 , spin-1/2 square-lattice Heisenberg antiferromagnet
journal, May 1989

Neutron Instruments for Research in Coordination Chemistry: Neutron Instruments for Research in Coordination Chemistry
journal, January 2019

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