2007 Volume 76 Issue 6 Pages 064712
We succeeded in growing a high-quality single crystal of ThRhIn5 with the HoCoGa5-type tetragonal crystal structure by the In-flux method. The lattice parameters, positional parameters and thermal parameters were determined from single-crystal x-ray diffraction measurements. We also measured the electrical resistivity and de Haas–van Alphen (dHvA) effect. Main dHvA branches are very similar to those of the 4f-itinerant heavy fermion superconductor CeCoIn5, but the cyclotron effective masses are by one to two orders of magnitude smaller than those of CeCoIn5. These Fermi surface properties are well explained by the FLAPW energy band calculations.
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