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Spin-lattice coupling in iron-pnictide superconductors: a model for possible continuous phase transition
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نویسنده
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Ekuma Chinedu E. ,Chukwuocha Ephriam O. ,Onyeaju Michael C.
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منبع
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journal of theoretical and applied physics - 2012 - دوره : 6 - شماره : 3
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چکیده
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A systematic study of the dependence of the local magnetic moment, m, on the fe-pn layer separation has been carried out. within the ehrenfest classification of orders of phase transition, we propose a continuous (>2) phase transition for studying the dependence of m on the fe-pn layer separation. our model is tested with available experimental data.
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کلیدواژه
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Fe-Pnictide superconductors ,Magnetic moment ,Continuous phase transition ,Euler-Lagrange equation ,Ehrenfest theory ,Ginzburg-Landau theory
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آدرس
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University of Port Harcourt, Department of Physics, Computational Material Physics Group, Nigeria. Louisiana State University, Department of Physics and Astronomy, USA, University of Port Harcourt, Department of Physics, Computational Material Physics Group, Nigeria, University of Port Harcourt, Department of Physics, Computational Material Physics Group, Nigeria
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Authors
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