The magnetic phase diagram of CsNiF3 as determined by neutron diffraction |
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Authors: | M. Steiner H. Dachs |
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Affiliation: | Institut Laue-Langevin, BP no 156, 38042-Grenoble Cedex, France |
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Abstract: | By neutron diffraction we investigated the magnetic properties of CsNiF3 around and below TN with and without magnetic field. We measured the phase diagram for 1.9 K ≤ T ≤ TN = 2.7 K in an external field. The phase transition in this temperature-range is always continuous. We were able to measure the critical scattering connected with the magnetic phase transition. This critical scattering is centered around the position of the magnetic Bragg reflections. The critical scattering was found to be similar everywhere on the phase-separation line (H ≠ )0 and at TN(H = 0). When applying a small field only processes were found, which correspond to a growing or diminishing of certain domains. |
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