Elastic characteristics of KDy(MoO4)2 in the region of the structural transformation
I. M. VitebskiĭPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR , KharkovS. ZherlitsynPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR , KharkovA. I. ZvyaginPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR , KharkovA. A. StepanovPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR , KharkovV. D. FilPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR , Kharkov
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Sound velocities in KDy(MoO4)2 were measured in the frequency range 50−120 Mhz in the temperature range 0.4−30° K that includes the structural phase transformation (SPT) point. On the basis of our data we conclude that the SPT in KDy(MoO4)2 involves multiplication of the unit cell.
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