Volume 64, Number 5, December 2003
|Page(s)||668 - 674|
|Section||Condensed matter: structure, mechanical and thermal properties|
|Published online||01 November 2003|
Xenon-ion–induced phase transition in thin films
II. Physikalisches Institut and SFB 602, Universität Göttingen Tammannstr. 1, D-37077 Göttingen, Germany
2 Institute of Instrumentation, D. A. University - Khandwa Road, Indore-452017, India
3 I. Physikalisches Institut, Universität Göttingen Tammannstr. 1, D-37077 Göttingen, Germany
Accepted: 30 September 2003
We report on the observation of the ion-induced hcp fcc phase transition in 75 thick polycrystalline films, which were irradiated with 200 ions to fluences of – at a temperature of 300. Analyses by means of Rutherford Backscattering Spectroscopy (RBS), X-Ray Diffraction (XRD), Magneto-Optical Kerr Effect (MOKE) and Vibrating Sample Magnetometry (VSM) provided information on the film thickness and the implanted profiles, the phase structure, the ion-induced lattice expansion and the magnetic hysteresis, respectively. After film deposition and irradiations up to , we predominantly found the hcp phase (XRD, uniaxial MOKE pattern) with an in-plane magnetization. The transition to fourfold in-plane magnetization typical of the fcc-phase occurred around a fluence of . We interpreted these findings as due to rapid cooling of thermal spikes into the metastable -fcc phase.
PACS: 61.80.Jh – Ion radiation effects / 75.30.Gw – Magnetic anisotropy / 75.50.Cc – Other ferromagnetic metals and alloys
© EDP Sciences, 2003
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.