Magnetic Properties of LnTi0.5V0.5O3 (Ln=Ce and Pr)

✍ Scribed by K. Yoshii; H. Abe

• Publisher: Elsevier Science
• Year: 2001
• Tongue: English
• Weight: 184 KB
• Volume: 156
• Category: Article
• ISSN: 0022-4596
• DOI: 10.1006/jssc.2000.9022

✦ Synopsis

Magnetic properties of LnTi 0.5 V 0.5 O 3 (Ln ‫؍‬ Ce and Pr), which are solid solutions between the perovskites LnTiO 3 and LnVO 3 , have been investigated. Their crystal structures are an orthorhombic perovskite type (Pnma), where the Ti and V ions are settled with random occupation at the same crystallographic site. DC susceptibility+temperature ( +T ) curves exhibit magnetic transitions at T N &50 K. These temperatures are considerably lower than those of the end compounds &116+145 K. The deviation between FC (5eld-cooled) and ZFC (zero-5eld-cooled) curves, and the susceptibility cusps only in the ZFC curves are also observed below T N2 &30 K. Magnetization at 6 K changes almost linearly with logarithm of time. AC susceptibility+temperature ( ( )+T ) curves show the maximums of both real and imaginary parts of ( ). The susceptibility maximum temperatures exhibit temperature dependence. These magnetic properties suggest the formation of spin-glasses, arising from the random occupation of the Ti and V ions.