Magnetic Properties of Ce(CuxNi1-x)4Mn Compounds |
| K. Synoradzki, T. Toliński
Institute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17, 60-179 Poznań, Poland |
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| The Ce(CuxNi1-x)4Mn series of compounds has been studied for a wide range of the x values. The magnetic properties are determined from the temperature dependence of the dc and ac magnetization. A large irreversibility is observed between the zero-field cooled (ZFC) and field-cooled (FC) curves with a maximum in the ZFC one. The ac magnetic susceptibility also shows a peak, which shifts to higher temperatures with increasing frequencies, which is typically observed in spin-glass (SG) systems. The observation of the SG behaviour is further supported by a very slow decay of the isothermal remanent magnetization and by the typical shape of the magnetization curves. A range of x values showing the para-ferromagnetic-SG transitions has been found. |
DOI: 10.12693/APhysPolA.126.300 PACS numbers: 75.50.Lk, 71.20.Lp |