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Phase diagram of the spinel oxide MnV 2 O 4

Abstract : Magnetization, susceptibility, and heat-capacity measurements were carried out on MnV2O4 ceramic samples. The two main results are as follows: (i) a consistent set of experimental features provides strong support to the existence of two separate transitions in zero-field and (ii) beside the ferrimagnetic transition, the phase diagram in the H−T plane contains two first-order transition (FOT) lines, both connected to the magnetostructural transition temperature in zero field. The new FOT line found at low-H/low-T is discussed in terms of field-induced alignment within the structure of tetragonal domains.
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Submitted on : Tuesday, August 6, 2019 - 11:40:01 AM
Last modification on : Tuesday, October 19, 2021 - 11:34:26 PM

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Vincent Hardy, Yohann Bréard, Christine Martin. Phase diagram of the spinel oxide MnV 2 O 4. Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2008, 78 (2), ⟨10.1103/PhysRevB.78.024406⟩. ⟨hal-02264099⟩

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