Memorias de investigación
Research Publications in journals:
Elastic (stress-strain) halo associated to ion-induced nano-tracks in lithium niobate: role of crystal anisotropy
Year:2011
Research Areas
  • Engineering
Information
Abstract
The elastic strain/stress fields (halo) around a compressed amorphous nano-track (core) caused by a single high-energy ion impact on LiNbO3 are calculated. A method is developed to approximately account for the effects of crystal anisotropy of LiNbO3 (symmetry 3m) on the stress fields for tracks oriented along the crystal axes (X, Y or Z). It only considers the zero-order (axial) harmonic contribution to the displacement field in the perpendicular plane and uses effective Poisson moduli for each particular orientation. The anisotropy is relatively small; however, it accounts for some differential features obtained for irradiations along the crystallographic axes X, Y and Z. In particular, the irradiation-induced disorder (including halo) and the associated surface swelling appear to be higher for irradiations along the X- or Y -axis in comparison with those along the Z-axis. Other irradiation effects can be explained by the model, e.g. fracture patterns or the morphology of pores after chemical etching of tracks. Moreover, it offers interesting predictions on the effect of irradiation on lattice parameters.
International
Si
JCR
Si
Title
JOURNAL OF PHYSICS D: APPLIED PHYSICS
ISBN
1361-6463
Impact factor JCR
0
Impact info
Volume
44
doi:10.1088/0022-3727/44/47/475301
Journal number
From page
0
To page
11
Month
SIN MES
Ranking
Participants
  • Autor: Antonio Juan Rivera de Mena UPM
  • Autor: G. García ALBA Synchrotron Light Facility
  • Autor: J. Olivares Centro de Microanálisis de Materiales, UAM
  • Autor: M.L. Crespillo Centro de Microanálisis de Materiales, UAM
  • Autor: F. Agulló-López Centro de Microanálisis de Materiales, UAM
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Fusión Nuclear Inercial y Tecnología de fusión
  • Centro o Instituto I+D+i: Instituto de Fusión Nuclear