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Synthesis, structure, and magnetism of a new heavy-fermion antiferromagnet, CePdGa6 |
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| Authors: | Robin T Macaluso H Lee M Moldovan Julia Y Chan |
| Institution: | a Department of Chemistry, Louisiana State University, 232 Choppin Hall, Baton Rouge, LA 70803, USA b National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL 32306, USA c Department of Physics and Astronomy, Louisiana State University, Baton Rouge, LA 70803, USA |
| Abstract: | A new compound, CePdGa6, and its isostructural analog, LaPdGa6 have been synthesized by flux growth and characterized by single-crystal X-ray diffraction. The compounds adopt a tetragonal structure with P4/mmm space group, Z=1. The lattice parameters for CePdGa6 are  and  and  and  for LaPdGa6. Magnetic and thermal measurement have revealed that CePdGa6 is a heavy-fermion with the specific heat coefficient  and Ce f moments order antiferromagnetically along c-axis at  . Reconfiguration of spin occurs at  to induce a ferromagnetic component only in the a-b plane. This strong anisotropy in the magnetism might be related to its unique layered structure. |
| Keywords: | CePdGa6 Single-crystal X-ray diffraction Heavy-fermion Metamagnetism |
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