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.
Experimental validation of Villain's conjecture about magnetic ordering in quasi-1D helimagnets / F. Cinti;A. Rettori;M.G. Pini;M. Mariani;E. Micotti;A. Lascialfari;N. Papinutto;A. Amato;A. Caneschi;D. Gatteschi;M. Affronte. - In: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS. - ISSN 0304-8853. - ELETTRONICO. - 322:(2010), pp. 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.
