Y Narumi et al 2004 J. Phys.: Condens. Matter 16 L57 doi:10.1088/0953-8984/16/7/L02
The coexistence of magnetic phases at the first-order phase transition of a metamagnet FeCl2
2H2O studied by x-ray diffraction
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Y Narumi1,4, K Katsumata1, T Nakamura2, Y Tanaka1, S Shimomura3, T Ishikawa1 and M Yabashi2
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The results of non-resonant magnetic x-ray diffraction measurements of the metamagnet FeCl22H2O subjected to an applied magnetic field, H, are reported. The material shows two successive first-order phase transitions: at Hc1 = 3.62 T from the antiferromagnetic (AF) to intermediate (I) phases, and at Hc2 = 4.67 T from phase I to a ferromagnetic phase at low temperatures. We find that the AF and I phases coexist over a wide range of H below Hc1, when H is decreased from the I phase. We were able to follow the evolution of the AF and I domains with the change of H. The coexistence appears not to come from demagnetizing effects, and instead reflects the intrinsic nature of the material.
- PACS
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75.30.Kz Magnetic phase boundaries (including magnetic transitions, metamagnetism, etc.)
- Subjects
- Dates
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Issue 7 (25 February 2004)
Received 13 November 2003
Published 6 February 2004
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The coexistence of magnetic phases at the first-order phase transition of a metamagnet FeCl22H2O studied by x-ray diffraction
Y Narumi et al 2004 J. Phys.: Condens. Matter 16 L57
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