| Issue |
EPL
Volume 102, Number 2, April 2013
|
|
|---|---|---|
| Article Number | 26002 | |
| Number of page(s) | 5 | |
| Section | Condensed Matter: Structural, Mechanical and Thermal Properties | |
| DOI | https://doi.org/10.1209/0295-5075/102/26002 | |
| Published online | 08 May 2013 | |
Synergy between electronic and nuclear energy losses for color center creation in AlN
CIMAP, CEA-CNRS-UCBN- ENSICAEN - BP 5133, 14070 Caen Cedex 5, France, EU
(a) monnet@ganil.fr
Received: 31 January 2013
Accepted: 3 April 2013
Optical absorption induced by swift heavy-ion irradiations in AlN was studied in situ at 15 K. Detailed analysis of the influence of both electronic and nuclear stopping power indicates that the electronic energy loss does not create the point defects inducing the observed absorption band at 4.7 eV. Elastic displacements are required. Nevertheless, an unexpected non-linear enhancement is induced by the electronic energy loss. The intensity of the synergy between electronic excitations and elastic collisions increases markedly with the electronic stopping power. For the heaviest projectiles, the enhancement of the color center creation yield amounts to two orders of magnitude.
PACS: 61.82.Fk – Semiconductors / 78.40.-q – Absorption and reflection spectra: visible and ultraviolet / 77.55.hd – AlN
© EPLA, 2013
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.