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Signatures of a magnetic field-induced unconventional nematic liquid in the frustrated and anisotropic spin-chain cuprate LiCuSbO4статья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 15 февраля 2024 г.
- Авторы: Grafe H.J., Nishimoto S., Iakovleva M., Vavilova E., Spillecke L., Alfonsov A., Sturza M.I., Wurmehl S., Nojiri H., Rosner H., Richter J., Rößler U.K., Drechsler S.L., Kataev V., Büchner B.
- Журнал: Scientific reports
- Том: 7
- Номер: 1
- Год издания: 2017
- Издательство: Nature Publishing Group
- Местоположение издательства: United Kingdom
- Номер статьи: 6720
- DOI: 10.1038/s41598-017-06525-0
- Аннотация: 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.
- Добавил в систему: Вавилова Евгения Леонидовна