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Observation of magnetic Mn sites in cubic and hexagonal HoMn2: 55Mn NMR study
Affiliation:1. Dpto Estructuras y Física, ETSAM, Universidad Politécnica de Madrid, 28040 Madrid, Spain;2. CITIMAC, Facultad de Ciencias, Universidad de Cantabria, 39005 Santander, Spain;3. ISIS Neutron and Muon Facility, Rutherford Appleton Laboratory, Chilton OX11 0QX, United Kingdom;4. SpLine CRG BM25 Beamline, The European Synchrotron, 71, Avenue des Martys, 38000 Grenoble, France;5. Instituto de Ciencia de Materiales de Madrid, Consejo Superior de Investigaciones Científicas (ICMM-CSIC), 28049 Madrid, Spain;6. Institute of Physics, Kazan Federal (Volga region) University, Kremlevskaya Str. 18, 420008 Kazan, Russia;7. Kazan State Power Engineering University, 51 Krasnoselskaya Str., 420066 Kazan, Russia;1. Ivan Franko L’viv National University, Kyryl & Mephodiy Str. 6, 79005 L’viv, Ukraine;2. Lviv Polytechnic National University, Ustyyanovycha Str. 5, 79013 Lviv, Ukraine;1. Department of Physics, Shri Shivaji Mahavidyalaya, Barshi, Solapur 413-411, India;2. Department of Biological Engineering, Konkuk University, Seoul 143-701, Republic of Korea;3. Department of BioNano Technology, Gachon BioNano Research Institute, Gachon University, Seongnam 460-701, South Korea;4. Department of Physics, RTM Nagpur University, Nagpur 440-033, India;5. Department of Chemical Engineering, Konkuk University, Seoul 143-701, Republic of Korea;1. Karpenko Physico-Mechanical Institute, Naukova 5, 79060, Lviv, Ukraine;2. Marian Smoluchowski Institute of Physics, Jagiellonian University, Prof. Stanisława Łojasiewicza 11, 30-348, Kraków, Poland;3. AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Department of Solid State Physics, Ave. Mickiewicza 30, 30-059, Kraków, Poland;4. Institute of Low Temperature and Structure Research, Okólna 2, 50-422, Wrocław, Poland;1. State Key Laboratory of Magnetism, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China;2. University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China;3. National Institute of Metrology, Beijing 100029, People’s Republic of China;4. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, People’s Republic of China;5. Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100090, People’s Republic of China
Abstract:55Mn nuclear magnetic resonance has been measured for both cubic C15 and hexagonal C14 HoMn2. In the ordered state, we found a high-frequency signal, which can be assigned to magnetic Mn atoms, for both C15 and C14 phases together with a low-frequency signal from non-magnetic Mn atoms. The results of the spin-spin relaxation time T2 in the ordered state and the NMR spectra in the paramagnetic state are also given to discuss the magnetic instability and the magnetic structure.
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