Evidence for a helical and a chiral phase transition in the Gd (hfac)3 NITiPr magnetic specific heat

Year: 2007

Authors: Cinti F., Rettori A., Barucci M., Olivieri E., Risegari L., Ventura G., Caneschi A., Gatteschi D., Rovai D., Pini M.G., Affronte M., Mariani M., Lascialfari A.

Autors Affiliation: INFM, Department of Physics, University of Florence, 50019 Sesto Fiorentino, FI, Italy; Department of Inorganic Chemistry, University of Florence, 50019 Sesto Fiorentino, FI, Italy; ISC-CNR, 50019 Sesto Fiorentino, FI, Italy; INFM-S3, Department of Physics, University of Modena, 41100 Modena, Italy; INFM, Department of Physics, University of Pavia, 27100 Pavia, Italy; Istituto di Fisiologia e Chimica Biologica, University of Milano, Milano, Italy

Abstract: New specific heat data taken at very low temperatures (0.03 < T < 0.18 K) in quasi one-dimensional helimagnet Gd (hfac)3 NITiPr show a clear ? anomaly at TN = 0.039 K signaling the onset of the 3D helimagnetic phase. They match fairly well with previously reported data which showed the onset of the chiral phase transition at T0 = 2.08 K. Also new magnetic susceptibility data taken in the neighborhood at T0 are repeated. Journal/Review: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

Volume: 310 (2 SUPPL. PART 2)      Pages from: 1460  to: 1461

KeyWords: Magnetic susceptibility; Specific heat, Low dimensional systems; Molecular magnets; Susceptibility measurements, Phase transitions
DOI: 10.1016/j.jmmm.2006.10.660

Citations: 8
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