Signatures of a magnetic field-induced unconventional nematic liquid in the frustrated and anisotropic spin-chain cuprate LiCuSbO4

Abstract Modern theories of quantum magnetism predict exotic multipolar states in weakly interacting strongly frustrated spin-1/2 Heisenberg chains with ferromagnetic nearest neighbor (NN) inchain exchange in high magnetic fields. Experimentally these states remained elusive so far. Here we report s...

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Autores principales:	H.-J. Grafe, S. Nishimoto, M. Iakovleva, E. Vavilova, L. Spillecke, A. Alfonsov, M.-I. Sturza, S. Wurmehl, H. Nojiri, H. Rosner, J. Richter, U. K. Rößler, S.-L. Drechsler, V. Kataev, B. Büchner
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/daaa2984ad4447b3a4fd80708e823241
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spelling	oai:doaj.org-article:daaa2984ad4447b3a4fd80708e8232412021-12-02T16:06:39ZSignatures of a magnetic field-induced unconventional nematic liquid in the frustrated and anisotropic spin-chain cuprate LiCuSbO410.1038/s41598-017-06525-02045-2322https://doaj.org/article/daaa2984ad4447b3a4fd80708e8232412017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-06525-0https://doaj.org/toc/2045-2322Abstract Modern theories of quantum magnetism predict exotic multipolar states in weakly interacting strongly frustrated spin-1/2 Heisenberg chains with ferromagnetic nearest neighbor (NN) inchain exchange in high magnetic fields. Experimentally these states remained elusive so far. Here we report strong indications of a magnetic field-induced nematic liquid arising above a field of ~13 T in the edge-sharing chain cuprate LiSbCuO4 ≡ LiCuSbO4. This interpretation is based on the observation of a field induced spin-gap in the measurements of the 7Li NMR spin relaxation rate T 1 −1 as well as a contrasting field-dependent power-law behavior of T 1 −1 vs. T and is further supported by static magnetization and ESR data. An underlying theoretical microscopic approach favoring a nematic scenario is based essentially on the NN XYZ exchange anisotropy within a model for frustrated spin-1/2 chains and is investigated by the DMRG technique. The employed exchange parameters are justified qualitatively by electronic structure calculations for LiCuSbO4.H.-J. GrafeS. NishimotoM. IakovlevaE. VavilovaL. SpilleckeA. AlfonsovM.-I. SturzaS. WurmehlH. NojiriH. RosnerJ. RichterU. K. RößlerS.-L. DrechslerV. KataevB. BüchnerNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-16 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q H.-J. Grafe S. Nishimoto M. Iakovleva E. Vavilova L. Spillecke A. Alfonsov M.-I. Sturza S. Wurmehl H. Nojiri H. Rosner J. Richter U. K. Rößler S.-L. Drechsler V. Kataev B. Büchner Signatures of a magnetic field-induced unconventional nematic liquid in the frustrated and anisotropic spin-chain cuprate LiCuSbO4
description	Abstract Modern theories of quantum magnetism predict exotic multipolar states in weakly interacting strongly frustrated spin-1/2 Heisenberg chains with ferromagnetic nearest neighbor (NN) inchain exchange in high magnetic fields. Experimentally these states remained elusive so far. Here we report strong indications of a magnetic field-induced nematic liquid arising above a field of ~13 T in the edge-sharing chain cuprate LiSbCuO4 ≡ LiCuSbO4. This interpretation is based on the observation of a field induced spin-gap in the measurements of the 7Li NMR spin relaxation rate T 1 −1 as well as a contrasting field-dependent power-law behavior of T 1 −1 vs. T and is further supported by static magnetization and ESR data. An underlying theoretical microscopic approach favoring a nematic scenario is based essentially on the NN XYZ exchange anisotropy within a model for frustrated spin-1/2 chains and is investigated by the DMRG technique. The employed exchange parameters are justified qualitatively by electronic structure calculations for LiCuSbO4.
format	article
author	H.-J. Grafe S. Nishimoto M. Iakovleva E. Vavilova L. Spillecke A. Alfonsov M.-I. Sturza S. Wurmehl H. Nojiri H. Rosner J. Richter U. K. Rößler S.-L. Drechsler V. Kataev B. Büchner
author_facet	H.-J. Grafe S. Nishimoto M. Iakovleva E. Vavilova L. Spillecke A. Alfonsov M.-I. Sturza S. Wurmehl H. Nojiri H. Rosner J. Richter U. K. Rößler S.-L. Drechsler V. Kataev B. Büchner
author_sort	H.-J. Grafe
title	Signatures of a magnetic field-induced unconventional nematic liquid in the frustrated and anisotropic spin-chain cuprate LiCuSbO4
title_short	Signatures of a magnetic field-induced unconventional nematic liquid in the frustrated and anisotropic spin-chain cuprate LiCuSbO4
title_full	Signatures of a magnetic field-induced unconventional nematic liquid in the frustrated and anisotropic spin-chain cuprate LiCuSbO4
title_fullStr	Signatures of a magnetic field-induced unconventional nematic liquid in the frustrated and anisotropic spin-chain cuprate LiCuSbO4
title_full_unstemmed	Signatures of a magnetic field-induced unconventional nematic liquid in the frustrated and anisotropic spin-chain cuprate LiCuSbO4
title_sort	signatures of a magnetic field-induced unconventional nematic liquid in the frustrated and anisotropic spin-chain cuprate licusbo4
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/daaa2984ad4447b3a4fd80708e823241
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Signatures of a magnetic field-induced unconventional nematic liquid in the frustrated and anisotropic spin-chain cuprate LiCuSbO4

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