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Abstract: We report on the nature of the low temperature magnetic ordering of a magnetic ionic plastic crystal, Choline[FeCl4]. This investigation was carried out using heat capacity measurements, neutron diffraction experiments and muon spin relaxation (µSR) spectroscopy. The calorimetric measurements show the onset of an unusual magnetic ordering below 4 K with a possible second magnetic phase transition below 2 K. Low temperature neutron diffraction data reveal a three dimensional antiferromagnetic ordering at 2 K compatible with the previous magnetometry results. The analysis of µSR spectra indicates a magnetic phase transition below 2.2 K. At 1.6 K, the analysis of the shape of the µSR spectra suggests the existence of an additional magnetic phase with features of a possible incommensurate magnetic structure.
Congreso: Reunión de la Sociedad Española de Técnicas Neutrónicas (7ª : Pamplona : 2014)
Fuente: Journal of Physics: Conference Series, Volume 663, conference 1
Editorial: Institute of Physics
Año de publicación: 2015
Nº de páginas: 5
Tipo de publicación: Artículo de Revista
DOI: 10.1088/1742-6596/663/1/012012
ISSN: 1742-6588,1742-6596
Url de la publicación: http://iopscience.iop.org/article/10.1088/1742-6596/663/1/012012
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MANUEL DE PEDRO DEL VALLE
ABEL GARCIA SAIZ
ANDREICA, D.
LUIS FERNANDEZ BARQUIN
FERNÁNDEZ-DÍAZ, M. T.
JESUS ANGEL BLANCO RODRIGUEZ
AMATO, A.
JESUS MARIA RODRIGUEZ FERNANDEZ
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