Helical Spin Structures in c-Axis Dy/Y Superlattice

• Authors: M. Seroczyńska , J. Kociński
• Languages of publication: EN

Abstracts

EN

On the basis of Landau's theory of symmetry changes at continuous phase transitions, we have derived the formulae for two incommensurate helical spin structures which are symmetry allowed in Dy/Y superlattice, when the helical axis is parallel to the c-axis of the hexagonal lattice. These structures have different extinction coefficients in their cross-sections for magnetic scattering of neutrons and therefore can be distinguished by experiment. Magnetic satellite peaks around the reciprocal lattice points K + 0 are allowed for only one of these spin structures, namely that inferred from earlier experiments.

Keywords

EN

75.70.Fr; 75.70.-i

Discipline

• 75.70.-i: Magnetic properties of thin films, surfaces, and interfaces(for magnetic properties of nanostructures, see 75.75.-c)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1996
• Volume: 89
• Issue: 1
• Pages: 99-104

Dates

published

1996-01

received

1995-08-25

Contributors

author

M. Seroczyńska

• Warsaw University of Technology, Institute of Physics, Koszykowa 75, 00-662 Warszawa, Poland

author

J. Kociński

• Warsaw University of Technology, Institute of Physics, Koszykowa 75, 00-662 Warszawa, Poland

Identifiers

DOI

10.12693/APhysPolA.89.99