http://www.cnr.it/ontology/cnr/individuo/prodotto/ID280635
Effect of Cu2+ and Ni2+ substitution at the Mn site in (La0.63Ca0.37)MnO3: A neutron powder diffraction investigation (Articolo in rivista)
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- Effect of Cu2+ and Ni2+ substitution at the Mn site in (La0.63Ca0.37)MnO3: A neutron powder diffraction investigation (Articolo in rivista) (literal)
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- 2013-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1016/j.jssc.2013.01.048 (literal)
- Alternative label
Martinelli, A.a , Ferretti, M.ab, Castellano, C.c, Cimberle, M.R.d, Ritter, C.e (2013)
Effect of Cu2+ and Ni2+ substitution at the Mn site in (La0.63Ca0.37)MnO3: A neutron powder diffraction investigation
in Journal of solid state chemistry (Online); Academic Press, Orlando (Stati Uniti d'America)
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- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Martinelli, A.a , Ferretti, M.ab, Castellano, C.c, Cimberle, M.R.d, Ritter, C.e (literal)
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- a CNR-SPIN, C.so Perrone 24, 16152 Genova, Italy
b Dipartimento di Chimica e Chimica Industriale, Università di Genova, Via Dodecaneso 31, 16146 Genova, Italy
c Università degli Studi di Milano, Dipartimento di Chimica Strutturale e Stereochimica Inorganica, Via G. Venezian 21, 20133 Milano, Italy
d IMEM-CNR, Via Dodecaneso 33, 16146 Genova, Italy
e Institute Laue - Langevin, 6 Rue Jules Horowitz, 38042 Grenoble Cedex 9, France (literal)
- Titolo
- Effect of Cu2+ and Ni2+ substitution at the Mn site in (La0.63Ca0.37)MnO3: A neutron powder diffraction investigation (literal)
- Abstract
- The crystal and magnetic structures of the (La0.63Ca 0.37)(Mn1-xTMx)O3 compounds (x=0.00, 0.03, 0.08; TM=Cu2+, Ni2+) were investigated between 5 K and 300 K by means of dc magnetic measurements and neutron powder diffraction analysis followed by Rietveld refinement. Both substituting cations lead to a reduction of the long range ferromagnetic ordering temperature; ferromagnetism is strongly suppressed in the 8% Cu-substituted sample, where long- and short-range FM magnetic orders coexist together with short-range A-type AFM order. This particular feature can be related to the Jahn-Teller character of Cu2+, absent in Ni2+, and suggests the occurrence of a quantum critical point in the (La0.63Ca0.37)(Mn 1-xCux)O3 system. © 2013 Elsevier Inc. (literal)
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