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Magnetic switching and magnetic transitions in ErCo2 probed by radio-frequency transverse susceptibility

AuthorsFigueroa, A. I.; Bonilla, C. M.; García, L. M.; Bartolomé, Fernando; Bartolomé, Juan; Herrero-Albillos, Julia
Issue Date2011
PublisherAmerican Institute of Physics
CitationJournal of Applied Physics 109(7): 07E118 (2011)
AbstractErCo2 represents a typical example of magnetism of itinerant electron systems and metamagnetic processes and has been the subject of extensive research. We present here the first study of radiofrequency transverse susceptibility (TS) of bulk ErCo2 using a self-resonant tunnel-diode oscillator technique. TS measurements reveal the collective magnetic switching of the Er moments at temperatures below the ferrimagnetic transition temperature, Tc -32 K, and the existence of Co nanoclusters with short-range correlations at Tc<T<Tf (Tf denoted as the flipping temperature). The difference in the magnetic configuration between the ferrimagnetic, parimagnetic, and paramagnetic states, as well as the change from the paramagnetic to parimagnetic regime upon varying dc magnetic fields are also probed by TS experiments. These findings are discussed in the context of our previous investigations using other different techniques which provide further insights into the magnetism and the so-called parimagnetism phenomenon in ErCo2.
Identifiersdoi: 10.1063/1.3553936
issn: 0021-8979
e-issn: 1089-7550
Appears in Collections:(ICMA) Artículos
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