Evidence of quantum spin fluid and of quantum spin glass behaviour has been detected by extended EPR analysis in some La-cuprate catalysts of general formula La2-xEuxCuO4 + δ. Some features of the EPR spectrum, appearing in a few cases, are also discussed and attributed to a pseudo Jahn-Teller effect due to a particular coordination of up to five oxygen ions around surface copper ions at low temperature.

Anisotropic quantum spin fluid and quantum spin glass in La Cuprate-based catalysts / C.Oliva, A.V.Vishniakov, I.E.Mukovozov, G.Termignone, L.Forni. - In: RADIATION PHYSICS AND CHEMISTRY. - ISSN 0969-806X. - 45:6(1995), pp. 945-948.

Anisotropic quantum spin fluid and quantum spin glass in La Cuprate-based catalysts

C.Oliva
Primo
;
G.Termignone
Penultimo
;
L.Forni
Ultimo
1995

Abstract

Evidence of quantum spin fluid and of quantum spin glass behaviour has been detected by extended EPR analysis in some La-cuprate catalysts of general formula La2-xEuxCuO4 + δ. Some features of the EPR spectrum, appearing in a few cases, are also discussed and attributed to a pseudo Jahn-Teller effect due to a particular coordination of up to five oxygen ions around surface copper ions at low temperature.
Settore CHIM/02 - Chimica Fisica
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/198838
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