Ferromagnetism of Narrow-Gap Ge_{1-x-y}Sn_xMn_yTe and Layered In_{1-x}Mn_xSe Semiconductors

• Authors: G. Lashkarev , V. Sichkovskyi , M. Radchenko , A. Dmitriev , V. Slyn'ko , E. Slyn'ko , Z. Kovalyuk , P. Butorin , W. Knoff , T. Story , R. Szymczak , R. Jakieła , P. Aleshkevych , W. Dobrowolski
• Languages of publication: EN

Abstracts

EN

Magnetic susceptibility, Hall effect and resistivity of narrow-gap Ge_{1-x-y}Sn_xMn_yTe single crystals (x = 0.083÷0.115; y = 0.025÷0.124) were investigated in the temperature range 4.2-300 K revealing a ferromagnetic ordering at T_C ≈ 50 K. Temperature dependence of magnetization indicates a superparamagnetic phase with magnetic clusters arranging in a spin glass state below the freezing temperature T_f. Magnetic structure of InSe ⟨Mn⟩ 2D-ferromagnetic single crystals was studied by SQUID magnetometry, neutron diffraction, secondary ion mass spectroscopy, and wave dispersive spectra. Hysteresis loops of magnetization were observed at least up to 350 K. The cluster model of ferromagnetism is considered. The formation of self-assembled superlattice ferromagnetic InSe:Mn/antiferromagnetic MnSe during growth process and further annealing was established.

Keywords

EN

72.20.My; 75.50.Pp; 75.30.Et; 77.80.Bh

Discipline

• 75.30.Et: Exchange and superexchange interactions(see also 71.70.Gm Exchange interactions)
• 72.20.My: Galvanomagnetic and other magnetotransport effects
• 75.50.Pp: Magnetic semiconductors

• Journal: Acta Physica Polonica A
• Year: 2008
• Volume: 114
• Issue: 5
• Pages: 1219-1227

Dates

published

2008-11

received

2008-06-07

Contributors

author

G. Lashkarev

• Institute for Problems of Material Science, National Academy of Sciences of Ukraine, 3 Krzhizhanovskogo str., Kyiv, Ukraine

author

V. Sichkovskyi

• Institute for Problems of Material Science, National Academy of Sciences of Ukraine, 3 Krzhizhanovskogo str., Kyiv, Ukraine

author

M. Radchenko

• Institute for Problems of Material Science, National Academy of Sciences of Ukraine, 3 Krzhizhanovskogo str., Kyiv, Ukraine

author

A. Dmitriev

• Institute for Problems of Material Science, National Academy of Sciences of Ukraine, 3 Krzhizhanovskogo str., Kyiv, Ukraine

author

V. Slyn'ko

• Institute for Problems of Material Science, National Academy of Sciences of Ukraine, 3 Krzhizhanovskogo str., Kyiv, Ukraine

author

E. Slyn'ko

• Institute for Problems of Material Science, National Academy of Sciences of Ukraine, 3 Krzhizhanovskogo str., Kyiv, Ukraine

author

Z. Kovalyuk

• Institute for Problems of Material Science, National Academy of Sciences of Ukraine, 3 Krzhizhanovskogo str., Kyiv, Ukraine

author

P. Butorin

• Institute for Problems of Material Science, National Academy of Sciences of Ukraine, 3 Krzhizhanovskogo str., Kyiv, Ukraine
• Joint Institute for Nuclear Research, Dubna, Russia

author

W. Knoff

• Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland

author

T. Story

• Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland

author

R. Szymczak

• Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland

author

R. Jakieła

• Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland

author

P. Aleshkevych

• Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland

author

W. Dobrowolski

• Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland

References

• 1. V.V. Slyn'ko, A.G. Khandozhko, Z.D. Kovalyuk, A.V. Zaslonkin, V.E. Slyn'ko, M. Arciszewska, W.D. Dobrowolski, Fiz. Tekhn. Poluprovodn. 39, 806 (2005)
• 2. V.V. Slyn'ko, A.G. Khandozhko, Z.D. Kovalyuk, V.E. Slyn'ko, A.V. Zaslonkin, M. Arciszewska, W.D. Dobrowolski, Phys. Rev. B 71, 245301 (2005)
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• 6. A.V. Brodovoy, G.V. Lashkarev, M.V. Radchenko, E.I. Slyn'ko, K.D. Tovstyuk, Fiz. Tekh. Poluprovodn. 18, 1547 (1984)
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• 9. G.V. Lashkarev, A.V. Brodovoi, S.D. Letuchenko, M.V. Radchenko, E.I. Slynko, V.P. Fedorchenko, Fiz. Tekh. Poluprovodn. 21, 1921 (1987)
• 10. G.V. Lashkarev, V.V. Slynko, Z.D. Kovalyuk, V.I. Sichkovskyi, M.V. Radchenko, P. Aleshkevych, R. Szymczak, W. Dobrowolski, R. Minikaev, A.V. Zaslonkin, Mater. Sci. Eng. C 27, 1052 (2007)
• 11. J.B.C. Efrem D'Sa, P.A. Bhobe, K.R. Priolkar, A. Das, P.S.R. Krishna,P.R. Sarode, R.B. Prabhu, Pramana J. Phys. 63, 227 (2004)

Identifiers

DOI

10.12693/APhysPolA.114.1219