Low-temperature specific heat, magnetic susceptibility, and zero-field muon spin resonance (SR)measurements have been performed in the quasi-one-dimensional molecular helimagnetic compoundGdhfac3NITEt. The specific heat presents two anomalies at T02:190:02K and TN 1:880:02K,which both disappear upon the application of a weak magnetic field. Conversely, magnetic susceptibilityand SR data show the divergence of two-spin correlation functions only at TN 1:88 0:02 K. Theseresults suggest an experimental validation of Villain’s conjecture of a two-step magnetic ordering in quasione-dimensional XY helimagnets; i.e., the paramagnetic phase and the helical spin solid phase areseparated by a chiral spin liquid phase, where translational invariance is broken without violation ofrotational invariance.

Two-Step Magnetic Ordering in Quasi-One-Dimensional Helimagnets: Possible Experimental Validation of Villain’s Conjecture about a Chiral Spin Liquid Phase / F., CINTI; A., RETTORI; M. G., PINI; M., MARIANI; E., MICOTTI; A., LASCIALFARI; N., PAPINUTTO; A., AMATO; A., CANESCHI; D., GATTESCHI; AFFRONTE, Marco. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - STAMPA. - 100:(2008), pp. 057203-057207.

Two-Step Magnetic Ordering in Quasi-One-Dimensional Helimagnets: Possible Experimental Validation of Villain’s Conjecture about a Chiral Spin Liquid Phase

AFFRONTE, Marco
2008

Abstract

Low-temperature specific heat, magnetic susceptibility, and zero-field muon spin resonance (SR)measurements have been performed in the quasi-one-dimensional molecular helimagnetic compoundGdhfac3NITEt. The specific heat presents two anomalies at T02:190:02K and TN 1:880:02K,which both disappear upon the application of a weak magnetic field. Conversely, magnetic susceptibilityand SR data show the divergence of two-spin correlation functions only at TN 1:88 0:02 K. Theseresults suggest an experimental validation of Villain’s conjecture of a two-step magnetic ordering in quasione-dimensional XY helimagnets; i.e., the paramagnetic phase and the helical spin solid phase areseparated by a chiral spin liquid phase, where translational invariance is broken without violation ofrotational invariance.
100
057203
057207
Two-Step Magnetic Ordering in Quasi-One-Dimensional Helimagnets: Possible Experimental Validation of Villain’s Conjecture about a Chiral Spin Liquid Phase / F., CINTI; A., RETTORI; M. G., PINI; M., MARIANI; E., MICOTTI; A., LASCIALFARI; N., PAPINUTTO; A., AMATO; A., CANESCHI; D., GATTESCHI; AFFRONTE, Marco. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - STAMPA. - 100:(2008), pp. 057203-057207.
F., Cinti; A., Rettori; M. G., Pini; M., Mariani; E., Micotti; A., Lascialfari; N., Papinutto; A., Amato; A., Caneschi; D., Gatteschi; Affronte, Marco
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11380/607911
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