2012/02/03 by A. I. Smirnov, K. Yu. Povarov, S. V. Petrov +1 · 1 citation
Engineering · Mathematics · Physics and Astronomy · #Advanced Condensed Matter Physics #Anisotropy #Antiferromagnetism #Atomic physics #Computer science #Condensed matter physics #Electron paramagnetic resonance #Field (mathematics) #Mathematics #Nuclear magnetic resonance #Perovskite Materials and Applications #Phase (matter) #Physics #Physics of Superconductivity and Magnetism #Planar #Quantum mechanics #Resonance (particle physics) #Spin (aerodynamics) #Spinon #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.85.184423
10 pages, 17 figures
arxiv created 2012/02/03 · openalex publication_date 2012/05/25 · arxiv updated 2013/05/29 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The temperature evolution of electron spin resonance is studied upon cooling the crystal samples of Cs2CuCl4 through the N'eel point 0.62 K. A coexistence of the high-frequency spinon-type resonance developed in the spin-liquid phase and of the low-frequency antiferromagnetic resonance was found in the ordered phase. The low-frequency magnetic resonance spectrum in the low-field range has two gapped branches and corresponds well to the spectrum of spin excitations of a planar spiral spin structure with two axes of the anisotropy. The field-induced phase transitions result in a more complicated low-frequency spectrum.