Nonlinear paramagnetic magnetization in the mixed state of CeCoIn5
نویسندگان
چکیده
Torque and magnetization measurements in magnetic fields H up to 14T were performed on CeCoIn5 single crystals. The amplitude of the paramagnetic torque shows an H dependence in the mixed state and an H dependence in the normal state. In addition, the mixedstate magnetizations for both H k c and H k ab axes show anomalous behavior after the subtraction of the corresponding paramagnetic contributions as linear extrapolations of the normal-state magnetization. These experimental results point towards a nonlinear paramagnetic magnetization in the mixed state of CeCoIn5, which is a result of the fact that both orbital and Pauli limiting effects dominate in the mixed state. Published by Elsevier B.V. PACS: 71.27.þa; 74.70.Tx; 75.30.Mb; 74.25.Ha
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تاریخ انتشار 2008