Anisotropic magnetic behavior in CeCrSb3

作者：Inamdar Manjusha^*; Thamizhavel A; Ramakrishnan S

来源：Journal of Magnetism and Magnetic Materials, 2008, 320(21): 2766-2769.

DOI：10.1016/j.jmmm.2008.06.024

• RCrSb3
• flux growth
• ferromagnetism
• antiferromagnetism

We report the single crystal growth, anisotropic dc magnetic susceptibility (T), isothermal magnetization M(H), electrical resistivity rho(T) and heat capacity C(T) measurements of a layered compound CeCrSb3. The crystal exhibits ferromagnetic ordering below 115 K due to ordering of Cr spins. The magnetic properties are anisotropic in this orthorhombic system with chi(b)/chi(a) = 8 below 5 K. Unlike all previous heat capacity measurements in both poly and single crystalline samples of RCrSb3, one observes a well-defined heat capacity anomaly at T-C in this crystal. The rho(T) and C(T) measurements also confirm the anisotropic bulk ferromagnetic ordering at T-C = 115 K. In addition, the presence of Ce ion enriches the magnetic phase diagram of CeCrSb3 compared to that of LaCrSb3. At high fields the magnetization along c-axis saturates to 2.2 mu(B)/f.u., a value much higher than saturation moment of Cr (1.5 mu(B)/f.u.) in LaCrSb3, suggesting magnetic ordering of Ce3+ ions, at high fields.

• 出版日期2008-11