| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1504891 | Solid State Sciences | 2013 | 8 Pages |
Structural and magnetic properties of the geometrically frustrated layered compound YBaCo4O7 have been studied by magnetization and neutron diffraction. A layered type crystal structure, with alternating tetrahedral layers of Kagomé and triangular types, along the c axis (hexagonal symmetry, space group P63mc) has been found. The oxygen content of the present compound was determined by iodometric titration to be 7.00 ± 0.01. Presence of a short-range antiferromagnetic ordering (below TN ∼ 110 K) has been concluded from the appearance of an addition broad magnetic peak (at Q ∼ 1.35 Å−1) in the neutron diffraction pattern. A staggered chiral type (3×3) spin structure in the Kagomé layers has been found. Presence of a significant magneto-structural coupling is concluded from the changes in lattice parameters across the magnetic ordering temperature TN ∼ 110 K.
Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Structural and magnetic correlations study of YBaCo4O7. ► Presence of a short-range antiferromagnetic ordering below TN ∼ 110 K ► A staggered chiral type (3×3) spin structure in the Kagomé layers. ► Presence of a significant magneto-structural coupling was confirmed. ► An attempt to understand the dimensionality of magnetic ordering.
