Ordering classification of columnar lattices formed in magnetic fluid subjected to perpendicular fields |
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| Affiliation: | 1. Department of Physics, National Sun Yat-sen University, 70 Lien-hai Road, Kaohsiung, Taiwan;2. Department of Physics, National Taiwan Normal University, Taipei, Taiwan;3. Department of Mechanical Engineering, Da-Yeh University, Chang-Hwa, Taiwan;1. Laboratoire LI2C, Université Pierre et Marie Curie, UMR CNRS 7612, case 51, 4 place Jussieu, 75252 Paris, Cedex 05, France;2. Laboratoire LMDH , Université Pierre et Marie Curie, UMR CNRS 7603, 140 rue de Lourmel, 75015 Paris, France;1. Instituto de Física, Núcleo de Física Aplicada, Universidade de Brasília, C.P. 004455, Campus Universitario, Brasília-DF 70919-970, Brazil;2. Departamento de Genética e Morfologia, Instituto de Ciências Biológicas, Universidade de Brasília, 70910-900 Brasília-DF, Brazil;3. Instituto de Química, Universidade Federal de Goiás,74001-970 Goiânia-GO, Brazil;1. Research Institute for Ubiquitous Energy Devices, National Institute of Advanced Industrial Science and Technology (AIST), Kansai, Midorigaoka 1-8-31, Ikeda, Osaka 563-8577, Japan;2. Photonics Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Kansai, Midorigaoka 1-8-31, Ikeda, Osaka 563-8577, Japan;3. Nanotechnology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Kansai, Midorigaoka 1-8-31, Ikeda, Osaka 563-8577, Japan;4. Research Institute for Cell Engineering, National Institute of Advanced Industrial Science and Technology (AIST), Kansai, Midorigaoka 1-8-31, Ikeda, Osaka 563-8577, Japan |
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| Abstract: | When the thin film of high-quality magnetic fluid is subjected to a perpendicular magnetic field, a separation of particles from the liquid matrix will occur, leading to a phase transition with a phase that is concentrated in particles separating from a dilute phase. The concentrated phase makes up the cylindrical columns that can form two-dimensional lattices. We have explored the field-induced lattices with optical microscopy, digital imaging and computer-video techniques in this study, to classify the ordering property in terms of bond-orientation order. |
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