A STUDY OF DEFEETS AND PHASE TRANSITION IN LaAlO3 SINGLE CRYSTAL

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A STUDY OF DEFEETS AND PHASE TRANSITION IN LaAlO3 SINGLE CRYSTAL

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XU XIU-YING, ZHANG XING-KUI, FAN DE-PEI, JIANG DONG-MEI

Acta Phys. Sin., 1993, 42(1): 72-77.

Abstract
In situ observation o phase transition in LaAlO3 crystal with the convergent polarized interference pattern at 20° to 800℃ was done. The experiment revealed the phase transition from rhombohedral to cubic at 560℃. The morphology of twin and its concentration, the cry-stallograpliic orientation of domain and the change of topography image of domain and inclusion near Tc have also been studied.
Authors and contacts
XU XIU-YING,

ZHANG XING-KUI,

FAN DE-PEI,

JIANG DONG-MEI

1.
南京大学物理系固体物理研究所,南京210008
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