Ti-Induced Ferromagnetism and the Specific Heat of CaTixRu1-xO3 (x=0, 0.005, 0.03)
A. Zorkovská, A. Baran, M. Kajňaková and A. Feher
Centre of Low Temperature Physics of the P.J.Šafárik University, and the Slovak Academy of Science, Park Angelinum 9, 04154 Košice, Slovakia
J. Šebek, E. Šantavá
Institute of Physics, AS CR, Na Slovance 2, 18221 Prague, Czech Republic
and I. Bradarić
The "Vinča" Institute of Nuclear Sciences, P.O. Box 522, 11001 Belgrade, Serbia
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Received: 9 07 2007;
The influence of Ti substitution on the specific heat of the CaTixRu1-xO3 system at low concentrations x=0, 0.005, and 0.03 was studied in the temperature range of 2-300 K at magnetic fields up to 9 T. Small peak was revealed in the C/T vs. T2 dependence at around 3 K, which are field sensitive (the electronic specific heat coefficient γ linearly decreases with the increase in magnetic field), and might be connected to some kind of magnetic ordering. The coefficient γ is suppressed also by Ti substitution.
DOI: 10.12693/APhysPolA.113.355
PACS numbers: 74.70.Pq, 75.40.Cx, 72.80.Ga