Local order in ZnGeP2:Mn crystals

被引：6

作者：

Bacewicz, R. ^{[1
]}

Pietnoczka, A.

Gehlhoff, W.

Voevodin, V. G.

机构：

[1] Warsaw Univ Technol, Fac Phys, PL-00662 Warsaw, Poland

[2] Tech Univ Berlin, Inst Solid State Phys, Berlin, Germany

[3] Siberian Physicotech Inst, Tomsk 634050, Russia

来源：

PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE | 2007年 / 204卷 / 07期

关键词：

D O I：

10.1002/pssa.200622598

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

X-ray absorption fine structure is investigated in ZnGeP2:Mn crystals at K-edge of Zn, Ge and Mn. Both, the XANES and EXAFS results indicate that Mn atoms substitute on cationic sites in the chalcopyrite structure. It is, however, impossible to discriminate between Mn-zn and Mn-Ge, sites due to similar photoelectron scattering amplitudes of Zn and Ge atoms in the second coordination shell of Mn atom. The nearest-neighbour distance Mn-P is up to 3% longer than the Zn-P bond length. The second- and third-neighbour atoms were found to remain at distance close to the host lattice positions. (C) 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：2296 / 2301

页数：6

共 16 条

[11] Room-temperature ferromagnetism in Mn-doped semiconducting CdGeP2 -: art. no. 047205 [J].