Magnetoelectric properties in A-type antiferromagnet in an electric field |
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| Institution: | 1. Department of Physics, Suzhou University, Suzhou 215006, China;2. Department of Physics, Nantong Teachers College, Nantong 226007, China;1. Department of Materials Science and Engineering, Korea University, Seoul 136-701, Republic of Korea;2. Department of Nano-Bio-Information-Technology, KU-KIST Graduate School of Converging Science and Technology, Anam-dong 5-ga, Seongbuk-gu, Seoul 136-701, Republic of Korea;3. Electronic Materials Center, KIST, 39-1 Hawolgok-dong, Seongbuk-gu, Seoul 136-791, Republic of Korea;4. Department of Radio Communications Engineering, Korea University, Seoul 136-701, Republic of Korea;1. School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan;2. National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan;3. Technical Center, TDK Corporation, Japan;4. School of Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan;1. Institute of Physics, Sachivalaya Marg, Bhubaneswar 751005, India;2. Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400085, India;3. Department of Physics, Indian Institute of Technology, Roorkee 247667, India;4. Department of Physics, Dr. Hari Singh Gour University, MP 470003, India;5. Inter University Accelerator Center, New Delhi 110067, India |
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| Abstract: | Mean-field theory based on Heisenberg model is used to investigate the magnetic and magnetoelectric properties at a finite temperature in the A-type antiferromagnetic lattice, in which we consider that an applied electric field can generate a bulk magnetic moment. We have calculated the magnetic moment, magnetic susceptibility and magnetoelectric susceptibility as a function of temperature for A-type antiferromagnetic system. It is demonstrated that an applied electric field together with the coupling parameter has an effect on the magnetic ordering behavior. Our results are almost consistent with those of spin-wave theory within the range of low temperature. |
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