Spin glass like behavior in Cd0.42Mn0.58In2S4

Authors :: G.E. Delgado
Vicente Sagredo
M.C. Morón
L. Betancourt
Comisión Interministerial de Ciencia y Tecnología, CICYT (España)
Fondo Nacional de Ciencia, Tecnología e Innovación (Venezuela)
Consejo de Desarrollo Científico, Humanístico, Tecnológico y de las Artes (Venezuela)
Source :: Digital.CSIC. Repositorio Institucional del CSIC, instname
Publication Year :: 2005
Publisher :: Elsevier BV, 2005.
Abstract: The magnetic behavior of the diluted magnetic semiconductor Cd0.42Mn0.58In2S4 has been study by dc magnetization and ac susceptibility experiments. Zero field cooled and field cooled measurements reveal irreversibility below Tirr=2.60±0.15 K. Ac susceptibility data, performed as a function of the temperature and the frequency, confirm the spin-glass like behavior of the material with Tf=2.75±0.15 K. High temperature susceptibility data follow a typical Curie-Weiss law with θ=−74±1 K which suggests predominant antiferromagnetic interactions. The randomness of the magnetic ions, necessary to explain the magnetic behavior of the material, has been determined by X-ray powder diffraction experiments.<br />This work was supported by CDCHT-ULA, FONACIT (Grant Lab-97000821), (TDA (E16/2005) and CICYT MAT2004-03395C0201.