Suppression of antiferromagnetic ordering by magnetic field in Ce0.6La0.4In3

International Conference on Strongly Correlated Electron Systems 2014

Ebihara, T.^1 ; Silhanek, A.V.^2 ; Jaime, M.^2 ; Harrison, N.^2

Graduate School of Science, Shizuoka University, Shizuoka

422-8529, Japan^1

National High Magnetic Field Laboratory, Los Alamos

NM

87545, United States^2

关键词: Antiferromagnetic orderings;    Antiferromagnetic phase;    Critical magnetic field;    Fermi surface topology;    High magnetic fields;    Lower critical field;    Paramagnetic phase;    Paramagnetic phasis;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/592/1/012079/pdf
DOI  :  10.1088/1742-6596/592/1/012079

来源: IOP

【 摘 要 】

Electrical resistivity and specifc heat measurements were performed at high magnetic fields up to 45 T in Ce0.6La0.4In3, which is the La-substituted material to heavy fermion antiferromagnet CeIn3. In Ce0.6La0.4In3, the H-T phase diagram was drawn and the critical magnetic field was estimated to be approximately at 39 T. The critical field of Ce0.6La0.4In3is about 20 T lower than that at 60 T of CeIn3. Lower critical field facilitates observing Fermi surfaces when crossing phase boundary between antiferromagnetic and paramagnetic phases. Thus, the phase diagram obtained from our results should be a guide when we compare the Fermi surface topology in antiferromagnetic phase to that in paramagnetic phase.