| Autor: |
Ter-Oganessian NV; Institute of Physics, Southern Federal University, Rostov-on-Don, 344090, Russian Federation. nikita.teroganessian@gmail.com., Guda AA; International Research Center 'Smart Materials', Southern Federal University, Rostov-on-Don, 344090, Russia., Sakhnenko VP; Institute of Physics, Southern Federal University, Rostov-on-Don, 344090, Russian Federation. |
| Jazyk: |
angličtina |
| Zdroj: |
Scientific reports [Sci Rep] 2017 Nov 27; Vol. 7 (1), pp. 16410. Date of Electronic Publication: 2017 Nov 27. |
| DOI: |
10.1038/s41598-017-16772-w |
| Abstrakt: |
By means of symmetry analysis, density functional theory calculations, and Monte Carlo simulations we show that goethite, α-FeOOH, is a linear magnetoelectric below its Néel temperature T N = 400 K. The experimentally observed magnetic field induced spin-flop phase transition results in either change of direction of electric polarization or its suppression. Estimated value of magnetoelectric coefficient is 0.57 μC · m -2 · T -1 . The abundance of goethite in nature makes it arguably the most widespread magnetoelectric material. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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