P. G. Baranov, S. I. Goloshchapov, G. A. Medvedkin, V. G. Voevodin, “Detection of magnetic resonance signals with anomalous dispersion and two types of isolated manganese centers in the chalcopyrite crystal (Zn,Mn)GeP<nobr>$_2$</nobr>”, Pis'ma v Zh. Èksper. Teoret. Fiz., 2003, Volume 77, Issue 10,Pages <nobr>686

This article is cited in 8 papers

Detection of magnetic resonance signals with anomalous dispersion and two types of isolated manganese centers in the chalcopyrite crystal (Zn,Mn)GeP$_2$

P. G. Baranov^a, S. I. Goloshchapov^a, G. A. Medvedkin^a, V. G. Voevodin^b

^a Ioffe Physico-Technical Institute, Russian Academy of Sciences, St. Petersburg
^b V.D. Kuznetsov Siberian Physicotechnical Institute at Tomsk State University

Abstract: Anomalously intense dispersion was observed in the magnetic resonance signals of manganese clusters in the chalcopyrite crystal ZnGeP$_2$:Mn with a high concentration of manganese. The EPR signals detected corresponded to two types of isolated manganese ions. One of these apparently possesses acceptor properties, which makes manganese a self-contained impurity for the formation of a ferromagnetic state in accordance with recent theoretical predictions.

PACS: 76.30.-v, 76.50.+g, 75.30.-m, 75.50.Pp

Received: 21.04.2003