Spin dynamics in pressure-induced magnetically ordered phases in (C4H12N2)Cu2Cl6

Perren, G.; Möller, J. S.; Hüvonen, D.; Podlesnyak, Andrey A.; Zheludev, A.

doi:10.1103/PhysRevB.92.054413

Title: Spin dynamics in pressure-induced magnetically ordered phases in $(C_{4} H_{12} N_{2}) {Cu}_{2} {Cl}_{6}$

Abstract

In this paper, we present inelastic neutron-scattering experiments on the S=1/2 frustrated gapped quantum magnet piperazinium hexachlorodicuprate (PHCC) under applied hydrostatic pressure. These results show that at 9 kbar the magnetic triplet excitations in the system are gapless, contrary to what was previously reported. Our results are in agreement with recent muon-spin relaxation experiments which found magnetic order above a quantum-critical point at 4.3 kbar. Finally, we show that the changes in the excitation spectrum can be primarily attributed to the change in a single exchange pathway.

Authors:

Perren, G. ^[1]; Möller, J. S. ^[1]; Hüvonen, D. ^[2]; Podlesnyak, Andrey A. ^[3]; Zheludev, A. ^[1]

ETH Zurich (Switzerland). Lab. for Solid State Physics. Neutron Scattering and Magnetism
ETH Zurich (Switzerland). Lab. for Solid State Physics. Neutron Scattering and Magnetism; National Inst. of Chemical Physics and Biophysics (NICPB), Tallinn (Estonia)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Quantum Condensed Matter Division

Publication Date:: Fri Aug 07 00:00:00 EDT 2015

Research Org.:: 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); Swiss National Science Foundation (SNSF); ETH Zurich (Switzerland); European Union (EU); Estonian Ministry of Education; Estonian Research Council

OSTI Identifier:: 1265623

Alternate Identifier(s):: OSTI ID: 1209192

Grant/Contract Number:: AC05-00OR22725

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review. B, Condensed Matter and Materials Physics

Additional Journal Information:: Journal Volume: 92; Journal Issue: 5; Journal ID: ISSN 1098-0121

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats


                    Perren, G., Möller, J. S., Hüvonen, D., Podlesnyak, Andrey A., and Zheludev, A. Spin dynamics in pressure-induced magnetically ordered phases in (C4H12N2)Cu2Cl6.  United States: N. p., 2015. 
Web.  doi:10.1103/PhysRevB.92.054413.

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                    Perren, G., Möller, J. S., Hüvonen, D., Podlesnyak, Andrey A., & Zheludev, A. Spin dynamics in pressure-induced magnetically ordered phases in (C4H12N2)Cu2Cl6.  United States.  https://doi.org/10.1103/PhysRevB.92.054413

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                    Perren, G., Möller, J. S., Hüvonen, D., Podlesnyak, Andrey A., and Zheludev, A. Fri .  
"Spin dynamics in pressure-induced magnetically ordered phases in (C4H12N2)Cu2Cl6".  United States.  https://doi.org/10.1103/PhysRevB.92.054413.  https://www.osti.gov/servlets/purl/1265623.

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@article{osti_1265623,

  title        = {Spin dynamics in pressure-induced magnetically ordered phases in (C4H12N2)Cu2Cl6},

  author       = {Perren, G. and Möller, J. S. and Hüvonen, D. and Podlesnyak, Andrey A. and Zheludev, A.},

  abstractNote = {In this paper, we present inelastic neutron-scattering experiments on the S=1/2 frustrated gapped quantum magnet piperazinium hexachlorodicuprate (PHCC) under applied hydrostatic pressure. These results show that at 9 kbar the magnetic triplet excitations in the system are gapless, contrary to what was previously reported. Our results are in agreement with recent muon-spin relaxation experiments which found magnetic order above a quantum-critical point at 4.3 kbar. Finally, we show that the changes in the excitation spectrum can be primarily attributed to the change in a single exchange pathway.},

  doi          = {10.1103/PhysRevB.92.054413},

  journal      = {Physical Review. B, Condensed Matter and Materials Physics},

  number       = 5,

  volume       = 92,

  place        = {United States},

  year         = {Fri Aug 07 00:00:00 EDT 2015},

  month        = {Fri Aug 07 00:00:00 EDT 2015}

}

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Spin waves near the edge of halogen substitution induced magnetic order in ${Ni (Cl}_{1 - x} {Br}_{x} {)_{2} \cdot 4 {SC (NH}_{2})}_{2}$
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Title: Spin dynamics in pressure-induced magnetically ordered phases in ( C 4 H 12 N 2 ) Cu 2 Cl 6

Abstract

Citation Formats

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Pressure-Induced Successive Magnetic Phase Transitions in the Spin Gap System TlCuCl$_3$ text, January 2004

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Title: Spin dynamics in pressure-induced magnetically ordered phases in $(C_{4} H_{12} N_{2}) {Cu}_{2} {Cl}_{6}$

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