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High-pressure magnetic phase transition and galvanomagnetic effects in the high-temperature ferromagnet p-Cd0.7Mn0.3GeAs2

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Abstract

The ferromagnetic semiconductor Cd0.7Mn0.3GeAs2 undergoes a high-pressure ferromagnetic-to-antiferromagnetic phase transition. We have studied this transition at different temperatures. From magnetic-field dependences of the Hall resistance measured at different temperatures, we have derived the normal and anomalous Hall coefficients of the material as functions of temperature. Its transverse magnetoresistance changes from positive to negative near the ferromagnetic-to-antiferromagnetic phase transition.

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Author information

Correspondence to R. K. Arslanov.

Additional information

Original Russian Text © A.Yu. Mollaev, I.K. Kamilov, S.F. Marenkin, R.K. Arslanov, U.Z. Zalibekov, T.R. Arslanov, A.A. Abdullaev, I.V. Fedorchenko, 2010, published in Neorganicheskie Materialy, 2010, Vol. 46, No. 9, pp. 1029–1033.

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Mollaev, A.Y., Kamilov, I.K., Marenkin, S.F. et al. High-pressure magnetic phase transition and galvanomagnetic effects in the high-temperature ferromagnet p-Cd0.7Mn0.3GeAs2 . Inorg Mater 46, 919–923 (2010). https://doi.org/10.1134/S0020168510090013

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Keywords

  • Magnetic Phase Transition
  • Hall Coefficient
  • Negative Magnetoresistance
  • Hall Resistance
  • Transverse Magnetoresistance