RT Journal Article
T1 Crystal field splitting and magnetic behavior of Nd2BaCuO5 single crystals
A1 Sáez Puche, Regino
A1 Romero de Paz, Julio
A1 Climent, Esteban
A1 Martínez, José Luis
A1 Monge, María Ángeles
A1 Cascales, Concepción
AB Single crystals of Nd2BaCuO5 oxide have been prepared starting from the powder oxide, and x-ray structural determination and magnetic studies have been carried out. Nd2BaCuO5 crystallizes with tetragonal symmetry, space group P4/mbm. The temperature dependence of the magnetic susceptibility measured along the c axis shows a net maximum at 7.5 K, indicative of the presence of an antiferromagnetic ordering below that temperature. This behavior has been confirmed by specific heat measurements, which show a l transition at 7.8 K. However, the magnetic susceptibility measured along the a axis does not show any maximum. This anisotropy has been explained as the result of the crystal field effect associated with the Nd3+ ion, by means of the determination of a consistent set of energy levels for the Nd2BaCuO5 oxide and the calculation of the paramagnetic susceptibilities according to the Van Vleck formalism. The rather low antiferromagnetically ordered magnetic moment of the Nd3+ ion, 0.81MB, is explained taking into account the calculated anisotropic g values of the crystal ground term of the Nd3+ ion.
PB American Physical Society
SN 1098-0121
YR 2005
FD 2005
LK https://hdl.handle.net/20.500.14352/94310
UL https://hdl.handle.net/20.500.14352/94310
LA eng
NO R. Sáez Puche, E. Climent, J. Romero de Paz, J. L. Martínez, M. A. Monge, and C. Cascales Phys. Rev. B 71, 024403 – Published 6 January 2005
DS Docta Complutense
RD 24 abr 2025