Title of article
Two ferromagnetic transitions in Pr0.8Ca0.2MnO3
Author/Authors
Dho، نويسنده , , Joonghoe and Chi، نويسنده , , E.O and Hur، نويسنده , , N.H. and Lee، نويسنده , , K.W and Oh، نويسنده , , H.S and Choi، نويسنده , , Y.N، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2002
Pages
4
From page
441
To page
444
Abstract
The magnetic and structural properties of a single crystal of Pr0.8Ca0.2MnO3 have been investigated by neutron powder diffraction and bulk magnetization as a function of temperature. Two ferromagnetic (FM) transitions near 140 and 70 K, which are ascribed to the ordering of Mn and Pr spins, respectively, are clearly evidenced by both measurements. The low temperature FM transition is largely dependent upon a strong exchange coupling between the localized Pr 4f and the neighboring itinerant Mn 3d spins. Near 140 K distinctive changes occur in lattice parameters, whereas no anomalous variation develops near 70 K.
Keywords
A. Magnetically ordered materials , E. Neutron diffraction
Journal title
Solid State Communications
Serial Year
2002
Journal title
Solid State Communications
Record number
1787524
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