Jahn-Teller distortion, charge ordering, and magnetic transitions in Ca-doped NdMnO3

S. Y. Wu, S. R. Hwang, W. H. Li, K. C. Lee, J. W. Lynn, R. S. Liu

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Structural and magnetic properties of (Nd1-xCax)MnO3, with x = 0, 0.38, and 0.55, have been investigated by means of neutron diffraction and ac magnetic susceptibility measurements. Ca doping induces a structural change to occur at around 250 K, that results in a much fatter unit cell and a significantly shorter axial Mn-O(1) bond length. Both antiferromagnetic and ferromagnetic behaviors were observed. Hole doping shifts the ordering temperature of the Mn spins to a much higher temperature and weakens the antiferromagnetic component as well. Reorientation of the Mn spins were also observed to occur at low temperatures for all three compounds studied.

Original languageEnglish
Pages (from-to)354-359
Number of pages6
JournalChinese Journal of Physics
Volume38
Issue number2-2
StatePublished - 2000

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