Structural Phase Transition in CdSb + 3 % MnSb Composite at a High Hydrostatic Pressure

Authors R.G. Dzhamamedov1, A.Ju. Mollayev1, A.V. Kochura2 , P.V. Abakumov2 , R.K. Arslanov1, S.F. Marenkin3,4, M.B. Dobromyslov5
Affiliations

1 Amirkhanov Institute of Physics, Dagestan Scientific Center, Russian Academy of Sciences, 94, Yaragskogo St., 367003 Makhachkala, Dagestan, Russia

2 South-West State University, Regional Centre of Nanotechnology, 94, 50 let Octyabrya St., 305040 Kursk, Russia

3 Institute of General and Inorganic Chemistry of Russian Academy of Sciences, 31, Leninskii Pr., 119991 Moscow, Russia

4 Moscow Institute of Steel and Alloys (National University of Science and Technology), 4, Leninskii Pr., 119049 Moscow, Russia

5 Pacific National University, 136, Tikhookeanskaya St., 680035 Khabarovsk, Russia

Е-mail [email protected]
Issue Volume 7, Year 2015, Number 4
Dates Received 02 October 2015; published online 24 December 2015
Citation R.G. Dzhamamedov, A.Ju. Mollayev, A.V. Kochura, et al., J. Nano- Electron. Phys. 7 No 4, 04088 (2015)
DOI
PACS Number(s) 81.40.Rs, 81.40.Vw, 75.50.Pp, 78.30.Hv
Keywords Magnetic composite (2) , Cadmium antimonide, Spintronic materials (5) , Hydrostatic pressure, Transport properties (4) .
Annotation In CdSb + 3 % MnSb composite, structural properties have been studied, specific resistance ρ and Hall coefficient RH are measured at a high hydrostatic pressure of up to P ≤ 9 GPa. An irreversible structural phase transition is found at barometric dependencies p(P) and RH(P). From our experimental data, barometric dependencies of carrier concentration and their mobility are calculated. On the basis of the heterophase structure – effective medium model, characteristic points and parameters of the phase transition, and also dynamics of variation of the initial phase volume C1 as a function of pressure are computed. The latter dependence is in agreement with the investigation results of Raman scattering before and after application of pressure.

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