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Journal of Materials Science

, Volume 43, Issue 16, pp 5662–5665 | Cite as

Negative magnetization in La0.75Nd0.25CrO3 perovskite

  • V. A. KhomchenkoEmail author
  • I. O. Troyanchuk
  • R. Szymczak
  • H. Szymczak
Letter

Introduction

Complex oxides of transition metals (TM) with the perovskite structure have attracted great interest due to a whole series of unique properties such as high-temperature superconductivity, colossal magnetoresistance, coexisting (anti)ferromagnetism, and (anti)ferroelectricity. Recently, several groups have reported negative magnetization observed below a certain temperature on cooling of a sample in a low or a medium (up to 4 kOe) magnetic field. This phenomenon was discovered for LaVO3 [1], YVO3 [2], La1−xGdxMnO3 [3], Nd1−xCaxMnO3 [4], GdCrO3 [5], La1−xPrxCrO3 [6], and some others perovskites. In the present paper, we report on the reversal of the magnetization for LaCrO3–NdCrO3 solids.

The end compounds, LaCrO3 and NdCrO3, have an orthorhombic perovskite structure at room temperature (space group Pbnm (Pnma)) [7]. The exchange coupling between the magnetic moments of the Cr3+ ions in LaCrO3is predominantly antiferromagnetic. G-type of antiferromagnetic structure is...

Keywords

LaCrO3 Paramagnetic Effect Negative Magnetization Spontaneous Magnetic Moment Weak Ferromagnetic Moment 

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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • V. A. Khomchenko
    • 1
    • 2
    Email author
  • I. O. Troyanchuk
    • 1
  • R. Szymczak
    • 3
  • H. Szymczak
    • 3
  1. 1.Joint Institute of Solid State and Semiconductor PhysicsNational Academy of Sciences of BelarusMinskBelarus
  2. 2.Department of Ceramics and Glass Engineering & CICECOUniversity of AveiroAveiroPortugal
  3. 3.Institute of PhysicsPolish Academy of SciencesWarsawPoland

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