139La nuclear magnetic resonance characterisation of La2O3 and La1-xSrxMO3 where M = Cr, Mn or Co.
Solid State Nucl Magn Reson
; 3(1): 17-22, 1994 Feb.
Article
in En
| MEDLINE
| ID: mdl-7827974
ABSTRACT
139La 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 59Co 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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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Oxides
/
Titanium
/
Magnetic Resonance Spectroscopy
/
Chromium
/
Cobalt
/
Calcium Compounds
/
Lanthanum
/
Nickel
Language:
En
Journal:
Solid State Nucl Magn Reson
Journal subject:
DIAGNOSTICO POR IMAGEM
/
MEDICINA NUCLEAR
Year:
1994
Document type:
Article
Affiliation country:
Australia