Hubert model for modulated states in systems with competing exchange interactions |
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| Institution: | 1. Institut für Festkörper- und Werkstofforschung Dresden, Postfach 270016, D-01171 Dresden, Germany;2. Donetsk Institute for Physics and Technology, NASU, 83114 Donetsk, Ukraine;1. Department of Physics, Lomonosov Moscow State University, Moscow 119991, Russia;2. Department of Physics and Astronomy, University of Nebraska-Lincoln, Lincoln, NE 68588, USA;3. Department of Physics, Southern Illinois University, Carbondale, IL 62901, USA;4. Department of Physics and Astronomy, Louisiana State University, Baton Rouge, LA 70803, USA;5. Lappeenranta University of Technology, 53851, Finland;6. Dpto. de Física de Materiales, Fac. Químicas, UPV/EHU, 20018 San Sebastian, Spain;7. IKERBASQUE, Basque Foundation for Science, 48011 Bilbao, Spain;8. Department of Physics, University of Nebraska at Omaha, Omaha, NE 68182, USA;1. Siberian Federal University, 79, pr. Svobodnyi, Krasnoyarsk 660041, Russia;2. Kirensky Institute of Physics, Siberian Branch of the Russian Academy of Sciences, 50/38, Akademgorodok, Krasnoyarsk 660036, Russia;3. Reshetnev Siberian State Aerospace University, 31, pr. Imeni Gazety “Krasnoyarskii Rabochii”, Krasnoyarsk 660014, Russia;1. College of Materials Science and Engineering, Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, PR China;2. Department of Physics, Taiyuan University of Science and Technology, Taiyuan, 030024, PR China;3. School of Science, Jiangnan University, Wuxi 214122, PR China;4. National Laboratory of Solid State Microstructures and Key Laboratory of Nanomaterials for Jiang Su Province, Nanjing University, Nanjing 210093, PR China;1. Far Eastern Federal University, 8 Sukhanova Street, Vladivostok 690950, Russia;2. State Key Laboratory of Magnetism, Institute of Physics, Chinese Academy of Sciences, Beijing, China;1. College of Information Science and Engineering, Huaqiao University, Xiamen city 361021, China;2. Clarendon Laboratory, Oxford University, OX1 3PU, United Kingdom |
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| Abstract: | Within a continuum model for magnetic systems with competing interactions introduced by Hubert the classification of all possible modulated structures for axial easy-plane systems has been carried out, and the phase portraits for these solutions are constructed. Analytic solutions for the structure of isolated domain walls between helicoids of different chirality are presented. The equilibrium structures of the modulated phases in an applied magnetic field and the critical field for transitions from helical to fan phase are in qualitative agreement with results obtained within the corresponding discretized model and various experimental data. |
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