Low-temperature magnetic susceptibility, zero-field muon spin resonance and specific heat measurements have been performed in the quasi-one-dimensional (1D) molecular helimagnetic compound Gd(hfac)(3)NITEt. The specific heat presents two anomalies at T(0) = 2.19(2) K and T(N) = 1.88(2) K, while susceptibility and zero-field muon spin resonance show anomalies only at T(N) = 1.88(2) K. The results suggest an experimental validation of Villain's conjecture of a two-step magnetic ordering in quasi-1D XY helimagnets: the paramagnetic phase and the helical spin solid phases are separated by a chiral spin liquid, where translational invariance is broken without violation of rotational invariance.
F. Cinti, A. Rettori, M.G. Pini, M. Mariani, E. Micotti, A. Lascialfari, et al. (2010). Experimental validation of Villain's conjecture about magnetic ordering in quasi-1D helimagnets. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 322, 1259-1261 [10.1016/j.jmmm.2009.04.025].
Experimental validation of Villain's conjecture about magnetic ordering in quasi-1D helimagnets
MARIANI, MANUEL;
2010
Abstract
Low-temperature magnetic susceptibility, zero-field muon spin resonance and specific heat measurements have been performed in the quasi-one-dimensional (1D) molecular helimagnetic compound Gd(hfac)(3)NITEt. The specific heat presents two anomalies at T(0) = 2.19(2) K and T(N) = 1.88(2) K, while susceptibility and zero-field muon spin resonance show anomalies only at T(N) = 1.88(2) K. The results suggest an experimental validation of Villain's conjecture of a two-step magnetic ordering in quasi-1D XY helimagnets: the paramagnetic phase and the helical spin solid phases are separated by a chiral spin liquid, where translational invariance is broken without violation of rotational invariance.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
