LA-139 NUCLEAR-MAGNETIC-RESONANCE CHARACTERIZATION OF LA2O3 AND LA1-XSRXMO3 WHERE M=CR, MN OR CO

被引:27
作者
BASTOW, TJ
机构
[1] CSIRO Division of Materials Science and Technology, Private Mail Bag 33, Rosebank MDC, Clayton
关键词
LA-139 NUCLEAR MAGNETIC RESONANCE; CO-59 NUCLEAR MAGNETIC RESONANCE; SOLID-STATE NUCLEAR MAGNETIC RESONANCE; PEROVSKITES; NUCLEAR QUADRUPOLE INTERACTIONS; MAGNETIC HYPERFINE INTERACTIONS;
D O I
10.1016/0926-2040(94)90047-7
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
La-139 Nuclear magnetic resonance (NMR) spectra have been used to obtain nuclear quadrupole coupling parameters for La2O3 and a series of perovskites La1-xSrxMO3 (where M = Cr, Mn or Co). Depending on the doping level of SrO2 these materials are either paramagnetic or ferromagnetic at room temperature. Magnetic transferred hyperfine effects are strongly in evidence in the Mn compounds. A Co-59 NMR spectrum was observed in LaCoO3. A precision measurement of the nuclear quadrupole coupling constant in La2O3 Was made by nuclear quadrupole resonance (NQR) spectroscopy.
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页码:17 / 22
页数:6
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