Abstract
The rate of thermal transitions in a kagome spin ice element is calculated using harmonic transition state theory for magnetic systems. Each element consists of six prolate magnetic islands. Minimum energy paths on the multidimensional energy surface are found to estimate activation energy. Vibrational frequencies are also calculated to estimate the rate of the various transitions. An overall transition rate between equivalent ground states is calculated by using the stationary state approximation including all possible transition paths. The resulting transition rate is in a good agreement with experimentally measured lifetime.
| Original language | English |
|---|---|
| Article number | 012182 |
| Journal | Journal of Physics: Conference Series |
| Volume | 741 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 15 Sept 2016 |
| Event | 3rd International School and Conference on Optoelectronics, Photonics, Engineering and Nanostructures, Saint Petersburg OPEN 2016 - St Petersburg, Russian Federation Duration: 28 Mar 2016 → 30 Mar 2016 |
Bibliographical note
Funding Information:This work was financially supported by the Government of Russian Federation, Grant 074-U01, RFBR grant No 14-02-00102 and the Icelandic Science Fund.
Publisher Copyright:
© Published under licence by IOP Publishing Ltd.