Electrical transport in the lanthanum and erbium cobaltites (Review Article)
Yu.N. Chiang and M.O. Dzyuba
B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine 47 Nauky Ave., Kharkiv 61103, Ukraine
Received August 16, 2018, revised January 30, 2020, published online April 24, 2020
The review is devoted to the conductive properties of the multielement compounds such as lanthanum and erbium cobaltites. These properties are associated with a dopant-controlled interaction of the delocalized electrons with the local magnetic moments. It is considered the basic physical mechanisms that determine the transport properties of perovskitelike materials. It is given main experimental results for lanthanum and erbium cobaltites, and it is considered the influence of the polycrystallinity factor of samples on their galvanomagnetic properties.
Key words: granulated cobaltite, magnetoresistance, double exchange, spin-polarized tunneling.