Magnetic and structural properties for melt-grown single crystals of monolayered manganites R0.7Sr1.3MnO4 (R = La, Pr, and Nd), possessing the K2NiF4 type structure, have been investigated. On the bases of magnetization, neutron powder diffraction, and relaxation measurements, it is revealed that all the three compounds display spin glass behaviors in the low-temperature region. In La0.7Sr1.3MnO4, spin glass behaviors are observed isotropically both in the ab plane and along the c axis. In contrast, Pr0.7Sr1.3MnO4 and Nd0.7Sr1.3MnO4 show anisotropic spin glass transition. The salient feature of spin glass behavior found in the Pr- and Nd-doped compounds can be understood in terms of the enhanced lattice distortion induced by small rare earth ion as well as the magnetic anisotropy of the rare earth ions.
|Number of pages||7|
|Journal||Chemistry of Materials|
|Publication status||Published - 2002|
ASJC Scopus subject areas
- Chemical Engineering(all)
- Materials Chemistry