Proximity effect of vanadium on spin-density-wave magnetism in Cr films

Details Proximity effect of vanadium on spin-density-wave magnetism in Cr films Proximity effect of vanadium on spin-density-wave magnetism in Cr films

2004-06-03

arxiv.org/abs/cond-mat/0406071v1

Physics

Condensed Matter

Materials Science

7 figures

Scientific paper

10.1103/PhysRevB.70.054425

The spin-density wave (SDW) state in thin chromium films is well known to be strongly affected by proximity effects from neighboring layers. To date the main attention has been given to effects arising from exchange interactions at interfaces. In the present work we report on combined neutron and synchrotron scattering studies of proximity effects in Cr/V films where the boundary condition is due to the hybridization of Cr with paramagnetic V at the interface. We find that the V/Cr interface has a strong and long-range effect on the polarization, period, and the N\'{e}el temperature of the SDW in rather thick Cr films. This unusually strong effect is unexpected and not predicted by theory.

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