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Slow Relaxation of Magnetic Susceptibility in Polycrystalline GdBaCo2O5.53 above the Curie Point and the Effect of High Hydrostatic Pressures

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Bulletin of the Russian Academy of Sciences: Physics Aims and scope

Abstract

A slowly decaying anomaly of magnetic susceptibility (characteristic time τ ~ 103 s) is revealed in studying the ferromagnetic–paramagnetic phase transition in polycrystalline cobaltite GdBaCo2O5.53 that occurs due to the remaining short-range magnetic order at temperatures above the Curie point (TC = 275 K). High hydrostatic pressures (up to 1.48 GPa) are found to have a weak effect on TC with baric coefficient dTC/dP = 2.1 K/GPa.

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Authors and Affiliations

  1. Donetsk Institute for Physics and Engineering, 83114, Donetsk, Ukraine

    T. N. Tarasenko

  2. St. Petersburg State University, 199034, St. Petersburg, Russia

    A. S. Mazur

Authors
  1. T. N. Tarasenko
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  2. A. S. Mazur
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Correspondence to T. N. Tarasenko.

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Translated by S. Efimov

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Tarasenko, T.N., Mazur, A.S. Slow Relaxation of Magnetic Susceptibility in Polycrystalline GdBaCo2O5.53 above the Curie Point and the Effect of High Hydrostatic Pressures. Bull. Russ. Acad. Sci. Phys. 83, 774–777 (2019). https://doi.org/10.3103/S1062873819060327

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  • DOI: https://doi.org/10.3103/S1062873819060327

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