English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The influence of long-range dipole interactions on two dimensional magnetismhas been studied extensively in the spin-reorientation transition offerromagnetic ultrathin films. Although there is a great deal of experimentalinformation on the perpendicular domain phase that is stabilized by dipoleinteractions, the transitions to or from the domain phase are subtle anddifficult to characterize experimentally. Magnetic susceptibility measurementsshow no divergence in the vicinity of the spin-reorientation transition as afunction of thickness -- a null result that is difficult to interpret withconfidence. This article reports separate dynamical and equilibrium versions ofthe reorientation transition in Fe/2ML Ni/W(110) films, using measurements ofthe magnetic susceptibility as the films are grown. The dynamical versionoccurs when increasing the film thickness causes the domain walls to depin, andthe system moves from a configuration that minimizes local energetics to onethat minimizes global energetics. The dynamical transition \textit{is} markedby a divergent magnetic susceptibility measured with a field applied along thein-plane W[001] direction. A comparative study of the two versions of the samespin-reorientation transition aids in the experimental characterization of theeffects of dipole interactions on the phase transitions. This comparisonconfirms the original null result found in magnetic susceptibility measurementsof the equilibrium transition; despite its name, the spin-reorientationtransition in ferromagnetic ultrathin films has no critical phase transition ineither the magnetization or its orientation.

physical review. b./physical review. b

Comparison of dynamical and equilibrium surface spin-reorientations:  Inferences on the nature of the phase transitions in the presence of dipole  interactions