2024-03-29T07:24:16Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/531002016-02-17T06:31:24Zcom_10261_31com_10261_3col_10261_284
Magnetic switching and magnetic transitions in ErCo2 probed by radio-frequency transverse susceptibility
Figueroa, A. I.
Bonilla, C. M.
García, L. M.
Bartolomé, Fernando
Bartolomé, Juan
Herrero-Albillos, Julia
ErCo2 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.
We wish to acknowledge the support by a grant from DoD-USAMRMC through grant no. W81XWH–07–1–0708 for the work at USF. The financial support of MICINN MAT08/1077 and Aragonese CAMRADS and IMANA projects is acknowledged. A.I.F. acknowledges a JAE2008- Predoc grant.
Peer Reviewed
2012-07-10T13:13:48Z
2012-07-10T13:13:48Z
2011
2012-07-10T13:13:49Z
artículo
http://purl.org/coar/resource_type/c_6501
doi: 10.1063/1.3553936
issn: 0021-8979
e-issn: 1089-7550
Journal of Applied Physics 109(7): 07E118 (2011)
http://hdl.handle.net/10261/53100
10.1063/1.3553936
en
open
American Institute of Physics