Glassy behavior of the Nd sublattice induced by Fe doping in

Autor: José F. Bartolomé, Fernando Bartolomé, M. Parra-Borderías, Julián Blasco
Rok vydání: 2007
Předmět:
Zdroj: Journal of Magnetism and Magnetic Materials. 316:e659-e662
ISSN: 0304-8853
DOI: 10.1016/j.jmmm.2007.03.092
Popis: The evolution of the magnetic ordering of Nd with the Fe content in NdFe x Ga 1 - x O 3 is studied by low-temperature specific-heat measurements for x ⩽ 0.2 . The experiments show that Nd ordering takes place for x ⩽ 0.1 , but it is inhibited for x ⩾ 0.2 . Fe doping creates a distribution of internal fields on Nd, originating a Schottky contribution to the specific heat which is present for x > 0 . The power law followed by the low-temperature specific heat suggests a glassy behavior for x ⩾ 0.1 .
Databáze: OpenAIRE