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IOP Publishing, Journal of Physics: Condensed Matter, 48(25), p. 484002

DOI: 10.1088/0953-8984/25/48/484002

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Surprising resistivity decrease in manganites with constant electronic density

Journal article published in 2013 by R. Cortés Gil, Ml L. Ruiz González ORCID, Jm M. Alonso, Jl L. Martínez ORCID, Antonio Hernando ORCID, M. Vallet Regí, José M. González Calbet ORCID
This paper is available in a repository.
This paper is available in a repository.

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Abstract

A decrease of eight orders of magnitude in the resistance of (La0.5Ca0.5)zMnO3 has been detected when the electronic density is kept constant while the calcium content is modified by introducing cationic vacancies. This effect is related to the disappearance of the charge ordering state and the emergence of an antiferromagnetic-ferromagnetic transition. Moreover, high values of the colossal magnetoresistance above room temperature are attained.