Abstract
The magnetic anisotropy in ferromagnetic chromium dioxide thin films ${(T}_{c}\ensuremath{\sim}393\mathrm{K})$ grown epitaxially on (100) ${\mathrm{TiO}}_{2}$ substrates, is probed using precise rf transverse susceptibility $({\ensuremath{\chi}}_{T})$ measurements. Singular peaks in ${\ensuremath{\chi}}_{T}$ are observed that are associated with the anisotropy $(\ifmmode\pm\else\textpm\fi{}{H}_{K})$ and switching $(\ifmmode\pm\else\textpm\fi{}{H}_{s})$ fields in ${\mathrm{CrO}}_{2}.$ Theoretical calculations of ${\ensuremath{\chi}}_{T}$ based on a simple coherent rotation model display remarkable agreement with the experimental data, indicating that these thin films behave like single-domain magnetic particles. Magnetoelastic contributions to the total anisotropy energy are needed to describe the evolution of ${\ensuremath{\chi}}_{T}$ peaks at lower temperatures.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
