Some remarks on the problem of piezomagnetism

Tarakanov, V. V.

doi:10.1016/s0921-4526(99)02673-3

Physica B: Condensed Matter

2000

DOI: 10.1016/s0921-4526(99)02673-3

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Some remarks on the problem of piezomagnetism

V. V. Tarakanov

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“…Piezomagnetism is also utilized in geology where the so-called volcanomagnetic effect is used for monitoring volcanic activities [17][18][19] . Despite intensive work, the microscopic nature and crystallographic evidence of piezomagnetism are still elusive 20,21 .…”

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Piezomagnetic switching and complex phase equilibria in uranium dioxide

et al. 2021

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Actinide materials exhibit strong spin–lattice coupling and electronic correlations, and are predicted to host new emerging ground states. One example is piezomagnetism and magneto-elastic memory effect in the antiferromagnetic Mott-Hubbard insulator uranium dioxide, though its microscopic nature is under debate. Here, we report X-ray diffraction studies of oriented uranium dioxide crystals under strong pulsed magnetic fields. In the antiferromagnetic state a [888] Bragg diffraction peak follows the bulk magnetostriction that expands under magnetic fields. Upon reversal of the field the expansion turns to contraction, before the [888] peak follows the switching effect and piezomagnetic ‘butterfly’ behaviour, characteristic of two structures connected by time reversal symmetry. An unexpected splitting of the [888] peak is observed, indicating the simultaneous presence of time-reversed domains of the 3-k structure and a complex magnetic-field-induced evolution of the microstructure. These findings open the door for a microscopic understanding of the piezomagnetism and magnetic coupling across strong magneto-elastic interactions.

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Piezomagnetic switching and complex phase equilibria in uranium dioxide

et al. 2021

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Some remarks on the problem of piezomagnetism

Cited by 1 publication

References 1 publication

Piezomagnetic switching and complex phase equilibria in uranium dioxide

Piezomagnetic switching and complex phase equilibria in uranium dioxide

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