A study is made of the spinon continuum fine structure which is observed to occur in the spin-liquid phases of chain- and triangular-lattice magnets at small wave vectors due to the action of a uniform Dzyaloshinskii—Moriya interaction. An ordered phase with a strongly quantum-reduced order parameters is found to exhibit the coexistence of magnon and spin excitations, the former crossing over to the latter when the energy exceeds that of the exchange interaction.

Keywords: spin chains, magnetic resonance, antiferromagnets, quantum magnets PACS: 75.10.Jm, 75.10.Pq, 75.40.Gb, 76.30.−v (all) DOI: 10.3367/UFNe.2016.02.037757 URL: https://ufn.ru/en/articles/2016/6/e/ 000386349400005 2-s2.0-84987665903 2016PhyU...59..564S Citation: Smirnov A I "Magnetic resonance of spinons in quantum magnets" Phys. Usp. 59 564–570 (2016) BibTex BibNote ® (generic)BibNote ® (RIS)MedlineRefWorks %0 Journal Article %T Magnetic resonance of spinons in quantum magnets %A A. I. Smirnov %I Physics-Uspekhi %D 2016 %J Phys. Usp. %V 59 %N 6 %P 564-570 %U https://ufn.ru/en/articles/2016/6/e/ %U https://doi.org/10.3367/UFNe.2016.02.037757 Received: 17th, March 2016, accepted: 4th, February 2016 Оригинал: Смирнов А И «Магнитный резонанс спинонов в квантовых магнетиках» УФН 186 633–639 (2016); DOI: 10.3367/UFNr.2016.02.037757