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Evidence for an electrical field induced order–order transition in Nd0.7Sr0.3MnOz
Ist Teil von
Journal of alloys and compounds, 2004-11, Vol.383 (1-2), p.45-48
Ort / Verlag
Lausanne: Elsevier B.V
Erscheinungsjahr
2004
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
Varistor-like electrical transport is found in magnetically ordered Nd2/3Sr1/3MnO3−δ compounds for δ>0.05. However, because of correlations of characteristic structures with the magnetic behaviour, transport through magnetic grain or phase boundaries is likely to be important. Aside from the sensitivity to external magnetic fields and to the internal magnetic polarisation, the observed phenomena including the phase transition temperatures are sensitive also to electrical fields. This we deduce from a temperature–current (T–I) phase diagram which can be collected from the appearance and/or shift of the characteristic transition temperatures at certain applied currents (or potentials).