Influence of Temperature on Critical Fields in Zn_{x}Sb_{y}Cr_{z}Se_{4}

• Authors: E. Malicka , T. Groń , H. Duda , A. Pacyna , J. Krok-Kowalski
• Languages of publication: EN

Abstracts

EN

The electrical and complex ac dynamic magnetic susceptibility measurements were used to study an influence of temperature on critical fields in single-crystalline Zn_{x}Sb_{y}Cr_{z}Se_{4} spinel system with y = 0.11, 0.16 and 0.20. The p-type conduction and a shift both of the Néel temperature T_{N} to lower temperatures and a susceptibility peak at T_{m} in the paramagnetic region - to higher temperatures were established. Below T_{N} the magnetic field dependence of susceptibility, χ_{ac}(H), shows two peaks. First peak at the critical field H_{c1} slightly decreases with temperature and remains almost constant as Sb content increases. Second peak at the critical field H_{c2} drops rapidly with temperature and remains almost unchanged as Sb content increases. At T_{N} both critical fields disappear.

Keywords

EN

75.50.Pp; 75.30.Kz; 75.30.Et

Discipline

• 75.30.Et: Exchange and superexchange interactions(see also 71.70.Gm Exchange interactions)
• 75.50.Pp: Magnetic semiconductors
• 75.30.Kz: Magnetic phase boundaries (including classical and quantum magnetic transitions, metamagnetism, etc.)(for ferroelectric phase transitions, see 77.80.B-; for superconductivity phase diagrams, see 74.25.Dw)

• Journal: Acta Physica Polonica A
• Year: 2009
• Volume: 116
• Issue: 5
• Pages: 964-966

Dates

published

2009-11

Contributors

author

E. Malicka

• Institute of Chemistry, University of Silesia, Szkolna 9, 40-006 Katowice, Poland

author

T. Groń

• Institute of Physics, University of Silesia, Uniwersytecka 4, Katowice, Poland

author

H. Duda

• Institute of Physics, University of Silesia, Uniwersytecka 4, Katowice, Poland

author

A. Pacyna

• The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, E. Radzikowskiego 152, 31-342 Kraków, Poland

author

J. Krok-Kowalski

• Institute of Physics, University of Silesia, Uniwersytecka 4, Katowice, Poland

References

• 1. E. Malicka, A. Waśkowska, J. Heimann, T. Mydlarz, R. Sitko, D. Kaczorowski, J. Solid State Chem. 181, 1970 (2008)
• 2. R. Kleinberger, R. de Kouchkovsky, C.R. Acad. Sci. Paris Ser. B 262, 628 (1966)
• 3. J. Hemberger, H.-A. Krug von Nidda, V. Tsurkan, A. Loidl, Phys. Rev. Lett. 98, 147203 (2007)

Identifiers

DOI

10.12693/APhysPolA.116.964