Large coupled magnetoresponses in EuNbO2N

A. Belen Jorge, Judith Oro-Sole, Ana M. Bea, Nandang Mufti, Thomas T. M. Palstra, Jennifer A. Rodgers, J. Paul Attfield, Amparo Fuertes

Research output: Contribution to journalArticlepeer-review

Abstract

We have explored a new strategy to discover materials with large resistive or capacitive responses to magnetic fields by synthesizing EuMO2N (M = Nb, Ta) perovskites that combine ferromagnetic order of S = 7/2 Eu2+ spins with possible offcenter distortions of the d(0) M5+ cations enhanced by covalent bonding to N. EuNbO2N shows colossal magnetoresistances at low temperatures and a giant magnetocapacitance. However, the latter response originates from a microstructural effect rather than an intrinsic multiferroism.

Original languageEnglish
Pages (from-to)12572-+
Number of pages3
JournalJournal of the American Chemical Society
Volume130
Issue number38
DOIs
Publication statusPublished - 24 Sep 2008

Keywords

  • COLOSSAL MAGNETORESISTANCE
  • FERROELECTRICITY
  • PEROVSKITE
  • RELAXOR
  • CDCR2S4

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