Cation disorder and size effects on the magnetic transition in Ba-containing ferromagnetic manganites |
| |
| Authors: | M.M. Savosta A.N. Ulyanov N.Yu. Starostyuk M. Maryško P. Novák |
| |
| Affiliation: | (1) Donetsk Institute of Physics & Technics, Academy of Sciences of Ukraine, Rozy Luxembourg 72, 340114 Donetsk, Ukraine, UA;(2) Institute of Physics, Academy of Sciences of the Czech Republic, Cukrovarnická 10, 162 53 Praha 6, Czech Republic, CZ |
| |
| Abstract: | The results of 55Mn NMR, dc magnetization, and ac susceptibility studies are presented for La0.7Ca0.15Ba0.15MnO3, La0.7Sr0.15Ba0.15MnO3, and La0.7Ba0.3MnO3 ferromagnetic manganites. While is a function of the mean radius of the La and alkaline-earth ions and the cation disorder, the form of the temperature dependence of the magnetic moment may be expressed as function of only. The phase transition is continuous for all three compounds. Received 5 March 1999 |
| |
| Keywords: | PACS. 75.30.Kz Magnetic phase boundaries (including magnetic transitions metamagnetism etc.) - 75.50.Dd Nonmetallic ferromagnetic materials - 76.60.-k Nuclear magnetic resonance and relaxation |
| 本文献已被 SpringerLink 等数据库收录！ |
|
