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Structure Characteristics of Cubic and Orthorhombic Phases of High Density Scintillator Pbf2 from 4.2–300 K

Published online by Cambridge University Press:  21 February 2011

Ivan Shmyt'ko ,
I.B. Savchenko ,
N.V. Klassen ,
B.Sh. Bagautdinov ,
G.A. Emel'chenko  and
V.V. Sinitzin
Ivan Shmyt'ko
Affiliation:
Institute of Solid State Physics of Russian Academy of Sciences, Chernogolovka, Moscow District, 142432, RUSSIA
I.B. Savchenko
Affiliation:
Institute of Solid State Physics of Russian Academy of Sciences, Chernogolovka, Moscow District, 142432, RUSSIA
N.V. Klassen
Affiliation:
Institute of Solid State Physics of Russian Academy of Sciences, Chernogolovka, Moscow District, 142432, RUSSIA
B.Sh. Bagautdinov
Affiliation:
Institute of Solid State Physics of Russian Academy of Sciences, Chernogolovka, Moscow District, 142432, RUSSIA
G.A. Emel'chenko
Affiliation:
Institute of Solid State Physics of Russian Academy of Sciences, Chernogolovka, Moscow District, 142432, RUSSIA
V.V. Sinitzin
Affiliation:
Institute of Solid State Physics of Russian Academy of Sciences, Chernogolovka, Moscow District, 142432, RUSSIA
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Abstract

An anomaly of the temperature dependence of the unit cell parameter has been observed for β–PbF2 single crystals at 200 K that is interpreted as a phase transition to a pseudocubic lattice. Such a pseudocubic phase is observable at room temperature after uniaxial plastic deformation of the bulk single crystals. The structural aspects of the β→α transition have been established. The as-grown crystals of α–PbF2 phase are shown to undergo a phase transition at 100 K.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 348 , 1994 , 143
Copyright
Copyright © Materials Research Society 1994

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References

REFERENCES

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