ABSTRACT The influence of irradiation with high energy Kr ions has been experimentally studied on... more ABSTRACT The influence of irradiation with high energy Kr ions has been experimentally studied on the magnetostrictive properties of TbFe/Co multilayers. Enhancement of magnetostriction at saturation can be obtained at an optimal fluence with a lower saturation field than for the non-irradiated multilayer. For high fluences, these properties are degraded. (c) 2006 Elsevier B.V. All rights reserved.
Gamma rays from the decay of 30Si levels with excitation energies less than 6.0 MeV have been stu... more Gamma rays from the decay of 30Si levels with excitation energies less than 6.0 MeV have been studied by the 27Al(α, pγ)30Si reaction. The γ rays were detected in a Ge(Li) detector in coincidence with protons observed in an annular detector placed at 180°. Branching ratios and lifetimes have been extracted. The lifetimes have been measured by the Doppler-shift attenuation method.The electromagnetic matrix elements for some of the observed levels were compared with recent many-particle shell model and core-coupling calculations.
... coherence underlying the master equation (29) is due to the stochastic character of the colli... more ... coherence underlying the master equation (29) is due to the stochastic character of the collisionprocess. ... time increases, eg for large angles of exit (6 ~ Ir/2), the influence of the ... The most profound change in the excitation dynamics of channeled ions as compared with those ...
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2004
The state-of-art of nanometric amorphization of materials induced by dense electronic excitations... more The state-of-art of nanometric amorphization of materials induced by dense electronic excitations of swift heavy ions will be presented. A detailed description of the experimental track observations will show that swift heavy ions are very efficient to induce phase transformations in a cylinder of some nanometers. The correlation between the track formations and chemical and physical property changes of the
The interaction of moving ions with single crystals is very sensitive to the orientation of the i... more The interaction of moving ions with single crystals is very sensitive to the orientation of the incident beam with respect to the crystalline directions of the target. Our experiments show that high energy heavy ion channeling deeply modifies their slowing down and charge exchange ...
Following a description used to explain a phase transformation observed after pulsed femtosecond ... more Following a description used to explain a phase transformation observed after pulsed femtosecond laser irradiation, a transient thermal process is used to describe latent-track formation after high electronic excitation induced by energetic (GeV) heavy ions. The ...
Nuclear Physics Methods in Materials Research, 1980
Hydrogen depth profiling by nuclear reaction and Rutherford backscattering have been used to Inve... more Hydrogen depth profiling by nuclear reaction and Rutherford backscattering have been used to Investigate a-S1. Ohmic contacts have been achieved by diffusion of hydrogen. Arsenic Is associated with an augmentation of hydrogen.
ABSTRACT The influence of irradiation with high energy Kr ions has been experimentally studied on... more ABSTRACT The influence of irradiation with high energy Kr ions has been experimentally studied on the magnetostrictive properties of TbFe/Co multilayers. Enhancement of magnetostriction at saturation can be obtained at an optimal fluence with a lower saturation field than for the non-irradiated multilayer. For high fluences, these properties are degraded. (c) 2006 Elsevier B.V. All rights reserved.
Gamma rays from the decay of 30Si levels with excitation energies less than 6.0 MeV have been stu... more Gamma rays from the decay of 30Si levels with excitation energies less than 6.0 MeV have been studied by the 27Al(α, pγ)30Si reaction. The γ rays were detected in a Ge(Li) detector in coincidence with protons observed in an annular detector placed at 180°. Branching ratios and lifetimes have been extracted. The lifetimes have been measured by the Doppler-shift attenuation method.The electromagnetic matrix elements for some of the observed levels were compared with recent many-particle shell model and core-coupling calculations.
... coherence underlying the master equation (29) is due to the stochastic character of the colli... more ... coherence underlying the master equation (29) is due to the stochastic character of the collisionprocess. ... time increases, eg for large angles of exit (6 ~ Ir/2), the influence of the ... The most profound change in the excitation dynamics of channeled ions as compared with those ...
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2004
The state-of-art of nanometric amorphization of materials induced by dense electronic excitations... more The state-of-art of nanometric amorphization of materials induced by dense electronic excitations of swift heavy ions will be presented. A detailed description of the experimental track observations will show that swift heavy ions are very efficient to induce phase transformations in a cylinder of some nanometers. The correlation between the track formations and chemical and physical property changes of the
The interaction of moving ions with single crystals is very sensitive to the orientation of the i... more The interaction of moving ions with single crystals is very sensitive to the orientation of the incident beam with respect to the crystalline directions of the target. Our experiments show that high energy heavy ion channeling deeply modifies their slowing down and charge exchange ...
Following a description used to explain a phase transformation observed after pulsed femtosecond ... more Following a description used to explain a phase transformation observed after pulsed femtosecond laser irradiation, a transient thermal process is used to describe latent-track formation after high electronic excitation induced by energetic (GeV) heavy ions. The ...
Nuclear Physics Methods in Materials Research, 1980
Hydrogen depth profiling by nuclear reaction and Rutherford backscattering have been used to Inve... more Hydrogen depth profiling by nuclear reaction and Rutherford backscattering have been used to Investigate a-S1. Ohmic contacts have been achieved by diffusion of hydrogen. Arsenic Is associated with an augmentation of hydrogen.
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