Ga and Pt NMR study of UPtGa5 |
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| Institution: | 1. Advanced Science Research Center, Japan Atomic Energy Research Institute, Tokai, Ibaraki 319-1195, Japan;2. Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan;3. Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan;1. Dipartimento di Scienze Chimiche e Geologiche, Università di Cagliari, Cittadella Universitaria di Monserrato, S.S. 554, Bivio per Sestu, I-09042 Monserrato (CA), Italy;2. Dipartimento di Scienze Biomediche, Sezione di Microbiologia e Virologia, Università di Cagliari, Cittadella Universitaria di Monserrato, S.S. 554, Bivio per Sestu, I-09042 Monserrato (CA), Italy;1. School of Physics and NANOTEC-SUT Center of Excellence on Advanced Functional Nanomaterials, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand;2. Thailand Center of Excellence in Physics, Commission on Higher Education, Bangkok 10400, Thailand;3. Department of Physics, Applied Physics, and Astronomy, Rensselaer Polytechnic Institute, Troy, NY 12180, USA;4. Department of Physics, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand;1. Department of Electronics and Communications Engineering, Hanyang University, 222, Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea;2. Center for Spintronics, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea;3. KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, 136-701, Republic of Korea;4. Center of Opto-Electronic Materials and Devices, Korea Institute of Science and Technology, 5, Hwarang-ro 14-gil, Seongbuk-gu, Seoul, 02792, Republic of Korea |
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| Abstract: | 69,71Ga and 195Pt NMR/NQR measurements have been carried out for the 5f-antiferromagnet, UPtGa5. From a NMR study using a single crystal sample, Knight shift measurements are reported for two different Ga sites and for Pt. The principal axes of the electrical field gradient tensor at both Ga sites have been determined and the values of the splitting parameter νQ and the asymmetry parameter η have been evaluated. The hyperfine coupling constants with the external field along various directions are also reported for the two Ga sites and Pt. |
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