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|Title:||Low temperature phase transition in ZnSe doped with nickel|
|Authors:||Sokolov, V. I.|
Dubinin, S. F.
Teploukhov, S. G.
Parkhomenko, V. D.
Lonchakov, A. T.
Gudkov, V. V.
Tkach, A. V.
Zhevstovskikh, I. V.
Gruzdev, N. B.
|Abstract:||The discovery of a low temperature structural transition in an ionic covalent crystal with a high degree of covalency was discussed. The structural transitions were found to be induced by a three dimensional impurity of an extremely low concentration. Experiments on elastic scattering of thermal neutrons were performed at a multi-detector diffractometer meant for single crystals. It was found that effective monochromatization of the initial beam and the optimum choice of the neutron's wavelength made it possible to suppress a multiple harmonic effect, improving the method sensitivity.|
|Keywords:||C. IMPURITIES IN SEMICONDUCTORS|
D. HEAT CONDUCTION
D. PHASE TRANSITION
E. NEUTRON SCATTERING
LOW TEMPERATURE EFFECTS
SOLID STATE PHYSICS
The authors are grateful to V.N. Fleurov and S. Flach for discussion of the experimental results, to J.-C. Rouchaud, V.V. Fedorenko, V.A. Sazonova and S.N. Shamin for the help in certification and preparation of the samples. The study was partly supported by the MIS and T of the Russian Federation (contract No.40.012.1.1.1150) and by the Programm of the President of the Russian Federation for support of leading scientific schools (Grant No.639.2003.2).
|Appears in Collections:||Научные публикации, проиндексированные в SCOPUS и WoS|
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