Abstract
Low-temperature magnetic ac susceptibility measurements of single-crystal dipolar spin ice Dy${}_{2}$Ti${}_{2}$O${}_{7}$ are presented. The relaxation is found to exhibit thermally activated Arrhenius behavior with an activation energy of 9.79 K ($\ensuremath{\sim}$$9{J}_{\mathrm{eff}}$), which is not consistent with a simple scaling of $6{J}_{\mathrm{eff}}$, as previously found for Ho${}_{2}$Ti${}_{2}$O${}_{7}$. There are distinct quantifiable differences between Dy${}_{2}$Ti${}_{2}$O${}_{7}$ and Ho${}_{2}$Ti${}_{2}$O${}_{7}$ absorption spectra. The measured dynamics does not agree with simulations based on current magnetic monopole theory nor thermal relaxation measurements, but instead freezes out at a faster rate.
Sign-in/Register to access full text options 
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 callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
