I. O. Troyanchuk, M. V. Bushinsky, V. M. Dobryanskii, N. V. Pushkarev, “First-order magnetic phase transition in layered Sr$_3$YCo$_4$O$_{10.5+\delta}$-type cobaltites”, Pis'ma v Zh. Èksper. Teoret. Fiz., 2011, Volume 94, Issue 12,Pages 930

This article is cited in 9 papers

CONDENSED MATTER

First-order magnetic phase transition in layered Sr$_3$YCo$_4$O$_{10.5+\delta}$-type cobaltites

I. O. Troyanchuk^a, M. V. Bushinsky^a, V. M. Dobryanskii^b, N. V. Pushkarev^c

^a Scientific-Practical Materials Research Centre of NAS of Belarus
^b Belarusian State Agrarian Technical University, Minsk
^c International Sakharov Environmental University, Minsk

Abstract: In layered Sr$_3$YCo$_4$O$_{10.5+\delta}$-type cobaltites with different oxygen contents, we have observed a first order magnetic phase transition from the high-temperature “ferromagnetic” state to the low-temperature antiferromagnetic state. The transition can be induced by an applied magnetic field. It is accompanied by a significant hysteresis in the magnetic field ($\sim10$ T) and temperature ($\sim10$ K). A decrease and an increase in the yttrium content lead to a purely “ferromagnetic” and antiferromagnetic behavior, respectively.

Received: 06.10.2011
Revised: 10.11.2011