SYNTHESIS AND MAGNETIC-BEHAVIOR OF THE NOVEL PR2BACUO5 OXIDE

The new Pr2BaCuO5 oxide has been prepared using a specific synthesis m ethod. X-ray diffraction data reveal that it crystallizes with tetrago nal symmetry, space group P4/mbm and lattice parameters: a=6.7318(2) A ngstrom and c=5.8338(3) Angstrom and Z=4. Magnetic susceptibility and magnetization measurements reveal an antiferromagnetic ordering in whi ch both praseodymium and copper sublattices are involved. At the order ing temperature, T-N approximate to 20 K, a small ferromagnetic compon ent appears probably as consequence of the canting of the antiferromag netic ordered spins. (C) 1998 Elsevier Science S.A.