Novel phase transitions in B-site doped manganites

6533b855fe1ef96bd12b06ca

RESEARCH PRODUCT

Novel phase transitions in B-site doped manganites

Fernando Sapiña Andrés Cantarero Zorana Dohčević-mitrović W.h.a. Thijssen Zoran B. Popović N. Paunović

subject

Phase transition Materials science Colossal magnetoresistance Condensed matter physics Doping Analytical chemistry Infrared spectroscopy Condensed Matter Physics Manganite Electronic Optical and Magnetic Materials Metal Condensed Matter::Materials Science Ferromagnetism Electrical resistivity and conductivity visual_art visual_art.visual_art_medium Condensed Matter::Strongly Correlated Electrons Electrical and Electronic Engineering

description

We have examined the infrared reflectivity and the electrical resistivity of La 1-x [Sr(Ba)] x Mn 1-z [Cu(Zn)] z O 3 samples in ferromagnetic metallic and insulator regime. Several phase transitions are observed, the most obvious being the transition from a ferromagnetic metallic to a ferromagnetic insulator phase that is related to the formation of short-range orbitally ordered domains. The temperature T 1 of the phase transition is dependent on doping concentration and for optimally doped samples (∼32% of Mn 4+ ions) we have found T 1 0.93 T C .

year	journal	country	edition	language
2005-04-01	Physica B: Condensed Matter

https://doi.org/10.1016/j.physb.2005.01.355

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