Quenched-disorder-induced magnetization jumps in (Sm,Sr)MnO3

L. M. Fisher, A. V. Kalinov, I. F. Voloshin, N. A. Babushkina, D. I. Khomskii, Y. Zhang, and T. T. M. Palstra
Phys. Rev. B 70, 212411 – Published 30 December 2004

Abstract

Magnetic field induced steplike changes in magnetization and resistivity of Sm1xSrxMnO3 manganites were studied. A strong dependence of these features on the cooling rate was observed. Magnetostriction, however, does not show the presence of large strain in our samples. From all these features we can rule out the conventional explanation of magnetization jumps as a consequence of martensitic transition. We propose instead that quenched by fast cooling disorder leads to the formation of an inhomogeneous metastable state and to subsequent magnetization jumps.

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  • Received 29 July 2004

DOI:https://doi.org/10.1103/PhysRevB.70.212411

©2004 American Physical Society

Authors & Affiliations

L. M. Fisher1, A. V. Kalinov1,2,*, I. F. Voloshin1, N. A. Babushkina3, D. I. Khomskii2,4, Y. Zhang5, and T. T. M. Palstra2

  • 1All-Russian Electrical Engineering Institute, 12 Krasnokazarmennaya Street, 111250 Moscow, Russia
  • 2Materials Science Center, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
  • 3Institute of Molecular Physics, Russian Research Center “Kurchatov Institute,” Kurchatov Square 1, 123182 Moscow, Russia
  • 4II Physikalisches Institut, Universität zu Köln, Zülpicher Str. 77, 50937 Köln, Germany
  • 5Department of Physics, Leiden University, Niels Bohrweg 2, 2300 RA Leiden, The Netherlands

  • *Corresponding author. Email address: kalinov@vei.ru

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Issue

Vol. 70, Iss. 21 — 1 December 2004

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