Magnetic cation distribution in a nanocrystalline Fe3O4 spinel

被引：7

作者：

Somogyvári, Z

Sváb, E

Mészáros, G

Krezhov, K

Konstantinov, P

Ungár, T

Gubicza, J

机构：

[1] Hungarian Acad Sci, Res Inst Solid State Phys & Opt, HU-1525 Budapest, Hungary

[2] Bulgarian Acad Sci, Inst Nucl Res & Nucl Energy, BU-1784 Sofia, Bulgaria

[3] Eotvos Lorand Univ, Dept Gen Phys, HU-1518 Budapest, Hungary

来源：

EPDIC 7: EUROPEAN POWDER DIFFRACTION, PTS 1 AND 2 | 2001年 / 378-3卷

关键词：

cation distribution; line profile analysis; magnetic sublattice; magnetite; nano-size; neutron diffraction; spinel;

D O I：

10.4028/www.scientific.net/MSF.378-381.771

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Neutron diffraction study of nanostructured magnetite was performed at room temperature. The actual grain-size was determined from evaluation of X-ray diffraction profiles by the modified Williamson-Hall plot. The atomic structure parameters and the sublattice magnetic moments were determined using the Rietveld refinement of the neutron diffraction spectra. The sublattice magnetization at the octahedral sites decreases with decreasing grain-size, while it remains practically constant at the tetrahedral sites.

引用

页码：771 / 776

页数：6

共 23 条

[1] NEUTRON DIFFRACTION INVESTIGATION OF THE 119-DEGREES-K TRANSITION INMAGNETITE [J].