| Autor: |
Popov, Yu. F., Kadomtseva, A. M., Krotov, S. S., Vorob’ev, G. P., Kamilov, K. I., Lukina, M. M., Tegranchi, M. M. |
| Předmět: |
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| Zdroj: |
Journal of Experimental & Theoretical Physics; May2003, Vol. 96 Issue 5, p961, 5p |
| Abstrakt: |
Magnetic, magnetoelectric, and magnetoelastic properties of Ymn[SUB2]O[SUB5] ferromagnetoelectric single-crystals are investigated in strong pulsed magnetic fields of up to 250 kOe and in static magnetic fields of up to (12 kOe. It is found that, in Ymn[SUB2]O[SUB5] at T < T[SUBN] = 42 K, a transverse weakly ferromagnetic moment of σ[SUB0] = 0.8 G cm[SUP3]/g exists that is oriented along axisa and is attributed to the magnetoelectric interaction. When a magnetic field is directed along axisb, which is likely to be the axis of antiferromagnetism, a spin-flop transition is observed that is accompanied by jumps in magnetostriction and electric polarization. When a magnetic field is directed along axis a, the temperature of ferroelectric transition shifts from 20 to 25 K atH = 200 kOe. A theoretical analysis of the experimental results is given within phenomenological theory with regard to the fact that a Ymn[SUB2]O[SUB5] compound belongs to noncollinear antiferromagnetic crystals even in the exchange approximation. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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