Thermodynamic Properties of (Ca,Sr)2RuO4 in Magnetic Fields
نویسندگان
چکیده
We have studied the influence of a magnetic field on the thermodynamic properties of Ca2−xSrxRuO4 in the intermediate metallic region with tilt and rotational distortions (0.2 ≤ x ≤ 0.5). We find strong and anisotropic thermal expansion anomalies at low temperatures, which are suppressed and even reversed by a magnetic field. The metamagnetic transition of Ca1.8Sr0.2RuO4 is accompanied by a large magnetostriction. Furthermore, we observe a strong magnetic-field dependence of cp/T , that can be explained by magnetic fluctuations.
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تاریخ انتشار 2005