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Braikova A. M. Matveiko N. P. Protasov S. K. 《Russian Journal of General Chemistry》2021,91(13):2774-2778
Russian Journal of General Chemistry - The technical legal acts that regulate the quality and safety parameters of mineral waters out were analyzed. Seven samples of mineral waters produced in... 相似文献
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Investigation of the effect of uniaxial pressure on antiferromagnetic resonance in KFe11O17 Crystals
The deformation dependence of the resonance field in KFe11O17 single crystals was investigated by the AFMR method. The measurements were performed at T=77 K and ν=47.52 GHz for two orientations of the external pressure. The experimental data are discussed in terms of a model of a very
simple easy-plane antiferromagnet taking account of the elastic and magnetoelastic contributions to the thermodynamic potential.
The magnetostriction, magnetoelastic, and elastic contants are calculated and the results are λ=1.94×10−5, B
1=2.75×108 erg/cm3, and C
11−C
12=1.42×1013 erg/cm3, respectively. The alues of these constants imply that the origin of the initial gap in the AFMR spectrum is not of magnetoelastic
origin.
Fiz. Tverd. Tela (St. Petersburg) 40, 513–515 (March 1998) 相似文献
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