Galvanomagnetic properties of polycrystalline manganese selenide Gd0.2Mn0.8Se

The electrical and galvanomagnetic properties of the Gd 0.2 Mn 0.8 Se solid solutions are investigated in zero magnetic field and in a field of 13 kOe in the temperature range of 80–400 K. The negative magnetoresistance below room temperature and hysteresis of the I–V characteristics are found. The...

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Published inPhysics of the solid state Vol. 59; no. 7; pp. 1314 - 1318
Main Authors Romanova, O. B., Aplesnin, S. S., Khar’kov, A. M., Masyugin, A. N., Yanushkevich, K. I.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.07.2017
Springer Nature B.V
Subjects
Electromagnetism
Hall effect
Hysteresis
Magnetic fields
Magnetoresistance
Magnetoresistivity
Manganese
Physics
Physics and Astronomy
Semiconductors
Solid solutions
Solid State Physics
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Summary:The electrical and galvanomagnetic properties of the Gd 0.2 Mn 0.8 Se solid solutions are investigated in zero magnetic field and in a field of 13 kOe in the temperature range of 80–400 K. The negative magnetoresistance below room temperature and hysteresis of the I–V characteristics are found. The change in the magnetoresistance sign and thermopower with increasing temperature is established. The carrier type is determined from the Hall constant; the difference between the thermopower and Hall coefficient signs at high temperatures is established. The experimental data are explained using the model of orbital ordering and spin-orbit interaction.
ISSN:1063-7834
1090-6460
DOI:10.1134/S1063783417070228