Occurrence of a tetracritical line in the x-H-T phase diagram of the random 2-component antiferromagnetic system K2Mn1−xFexF4 |
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| Authors: | L Bevaart E Frikkee LJ de Jongh |
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| Institution: | Netherlands Energy Research Foundation ECN, Petten (N.H., The Netherlands;Kamerlingh Onnes Laboratory, University of Leiden, Leiden, The Netherlands |
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| Abstract: | The H-T phase diagram of the antiferromagnetic compound K2Mn.978Fe.022F4 system K2Mn1-xFexF4 has been studied by neutron scattering. The results can be explained by means of a 3-dimensional X-H-T phase diagram, which can be constructed on basis of the x-T diagram previously found for K2Mn1?xFexF4 (H=0) and the H-T diagram of an antiferromagnetic with weak uniaxial anisotropy (x=0). |
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