Work

Magnetotransport properties of flux melt grown single crystals of Co-substituted manganites with perovskite structure

Year: 2003

Type: article

Abstract: Single crystals of La 1− x Ba x Mn 1− y Co y O 3 (0.26 ≤ x ≤ 0.37; 0 ≤ y ≤ 0.31) perovskites were grown by the flux melt technique using the BaO–B 2 O 3 –BaF 2 ternary system as a solvent. It was found that the cobalt content in the crystals is determined by the average oxidized state of the manganese ions and depends nonlinearly on the molar ratio of Co/Mn in the initial mixture. All the crystals exhibit ferromagnetic behaviour at low temperatures as well as a jump of resistivity and a magnetoresistance peak around the Curie temperature, gradually decreasing as the cobalt content increases. The low-temperature ferromagnetic phase transforms from the metallic to the semiconducting state with increase in cobalt content.

Source: Journal of Physics Condensed Matter

DOI: 10.1088/0953-8984/15/6/319

Authors: D D Khalyavin, M Pekala, G L Bychkov, S V Shiryaev, S N Barilo, I O Troyanchuk, J Mucha, H Misiorek, R Szymczak, M Baran, H Szymczak

Institutions: National Academy of Sciences of Belarus, Institute of Solid State Physics and Semiconductors, University of Warsaw, Włodzimierz Trzebiatowski Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Institute of Physics

Language: English

Topic: Magnetic and transport properties of perovskites and related materials

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

Open Access status: bronze

OpenAlex ID: W2000687908

FWCI: 1.488

Cites: 26

Cited by: 13

Related to: 10