Electroni doping of Ca4Mn3O10 induced by vanadium substitution
authors Carvalho, MD; Borges, RP; Girao, AV; Cruz, MM; Jorge, MEM; Bonfait, G; Dluzewski, P; Godinho, M
journal CHEMISTRY OF MATERIALS
keywords RUDDLESDEN-POPPER COMPOUND; GIANT MAGNETORESISTANCE; PHYSICAL-PROPERTIES; CRYSTAL; FERROMAGNETISM; MANGANATES; OXIDES; CAMNO3; SITE
abstract In this work, electron doping of the anisotropic phase Ca4Mn3O10 was achieved by substitution of manganese by vanadium. No significant structural modifications were detected to the highest Substitution ratio of 10% achieved. The introduction of vanadium decreases the electrical resistivity. described as two-dimensional variable range hopping, and induces the appearance of it ferromagnetic behavior. Consistently negative magnetoresistance develops in the magnetic ordered state. These results are characteristic of the presence of double exchange interactions, indicating that vanadium doping induces mixed valence of manganese.
publisher AMER CHEMICAL SOC
issn 0897-4756
year published 2005
volume 17
issue 19
beginning page 4852
ending page 4857
digital object identifier (doi) 10.1021/cm050395r
web of science category Chemistry, Physical; Materials Science, Multidisciplinary
subject category Chemistry; Materials Science
unique article identifier WOS:000231894600015
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journal analysis (jcr 2019):
journal impact factor 9.567
5 year journal impact factor 10.102
category normalized journal impact factor percentile 88.386
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