Chiral excitations and the intermediate-field spin-liquid regime in the Kitaev magnet $\alpha$-RuCl$_3$

Autor:	Sahasrabudhe, Anuja, Prosnikov, Mikhail A., Koethe, Thomas C., Stein, Philipp, Tsurkan, Vladimir, Loidl, Alois, Grüninger, Markus, Hedayat, Hamoon, van Loosdrecht, Paul H. M.
Rok vydání:	2023
Předmět:	Condensed Matter - Strongly Correlated Electrons
Zdroj:	Phys. Rev. Research 6, L022005 (2024)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevResearch.6.L022005
Popis:	In the Kitaev magnet $\alpha$-RuCl$_3$, the existence of a magnetic-field-induced quantum spin liquid phase and of anyonic excitations are discussed controversially. We address this elusive, exotic phase via helicity-dependent Raman scattering and analyze the Raman optical activity of excitations as a function of magnetic field and temperature. The hotly debated field regime between 7.5 T and 10.5 T is characterized by clear spectroscopic signatures such as a plateau of the Raman optical activity of the dominant, chiral spin-flip excitation. This provides direct evidence for the existence of a distinct intermediate field regime compatible with a quantum spin liquid phase. Comment: 6 pages, 3 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2305.03400 Zobrazit plný text záznamu View this record from Arxiv