Rodriguez, C. Trautmann, O. Pakarinen, F. Djurabekova, K. Nordlund, T. Bierschenk, R. Giulian, M. Ridgway, G. Rizza, N. Kirby, M. Toulemonde, and P.
On the optical properties of the Mn4+ ion in solids
Garriga, M. Alonso, X. Obradors, and T. Rivera, and F. Rivera, O. Olivares, and F. Rivera, J. Olivares, G. Backman, F. Djurabekova, O. Pakarinen, K. Nordlund, Y. Zhang, M. Toulemonde, and W. Manzano, J. Olivares, F. Crespillo, A. B Beam Interact, Mater.
Medvedev, A. Volkov, N. Shcheblanov, and B. Nordlund, P. Kluth, and M. Crespillo, O. Caballero-Calero, M. Ynsa, A. Toulemonde, C. Trautmann, and F.
Cabrera, F. Status Solidi. Rivera, A. Cabrera, and F. Kluth, C. Schnohr, O. Djurabekova, D. Sprouster, R. Ridgway, A. Byrne, C.
- Ionic compound.
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Trautmann, D. Cookson, K. Nordlund, and M. Schwen and E. Gamaly, B. Luther-Davies, L. Hallo, P. Nicolai, and V. Huang, P. Alsing, T.
Optical Properties of Rare-Earth Ions in Solids and their Applications
Apostolova, and D. Schiwietz, K. Czerski, M. Roth, F. Staufenbiel, and P. Meldrum, L. Boatner, W. Weber, and R. Gaiduk, A. Larsen, C. Trautmann, and M. Meldrum, S. Zinkle, L. Boatner, and R. Bringa and R. B Condens. Meftah, F. Brisard, J. Costantini, M. Hage-Ali, J. Stoquert, F. Studer, and M. Dufour, A. Audouard, F. Beuneu, J. Dural, J. Girard, A.
Hairie, M. Levalois, E. Paumier, and M. Toulemonde and F. B Solid State Phenom. White, L. Boatner, P. Sklad, C. McHargue, J. Rankin, G.
Farlow, and M. Gu, W. Cha, K. Gamo, and S. Destefanis, P. It was found that the band gap value shifted to lower energy on doping with metal nanoparticles. Differential scanning calorimetry analysis revealed a decrease in the glass transition temperature upon irradiation, which may be attributed to the scissioning of polymer chain due to ion beam irradiation which is also corroborated with XRD analysis. Surface morphology of the pristine and irradiated films was studied by scanning electron microscopy SEM. The breakage of chemical bonds resulted in an increase of free radicals, unsaturation etc.
The dielectric properties were observed to enhance with an increase in metal compound concentration as well as with irradiation dose. The changes in topography of surfaces were also observed upon irradiation. Authors: R. Ramola, Subhash Chandra. Abstract: High energy ion beam induced modifications in polymeric materials is of great interest from the point of view of characterization and development of various structures and filters.utexcimor.tk
Luminescence from Lanthanide-Doped Nanoparticles
Due to potential use of conducting polymers in light weight rechargeable batteries, magnetic storage media, optical computers, molecular electronics, biological and thermal sensors, the impact of swift heavy ions for the changes in electrical, structural and optical properties of polymers is desirable.
The high energy ion beam irradiation of polymer is a sensitive technique to enhance its electrical conductivity, structural, mechanical and optical properties. Recent progress in the radiation effects of ion beams on conducting polymers are reviewed briefly. Our recent work on the radiation effects of ion beams on conductive polymers is described. Authors: M. Mohapatra, B. Abstract: Borosilicate based glass formulations have been found suitable for vitrification of high level nuclear waste HLW generated during the reprocessing of spent nuclear fuel from nuclear reactors.
These glasses possess desirable properties like high chemical, mechanical, thermal and radiation stability for HLW storage. Also, the amorphous nature of the glass helps accommodate the waste containing a variety of elements easily. Spectroscopic techniques provide direct and non-invasive method for investigating this radiation damage in the glasses.
The present paper gives a glimpse of the current status and issues regarding the investigation of radiation damage in the glass matrices. Abstract: t is well established that the properties of the materials can be tailored as per specific requirements as a result of swift heavy ion irradiation. This is because of the radiation damage induced changes in the properties of the materials as a result of the energy loss process of the incident ions along their trajectory. In order to correlate such induced changes with the energy loss of the impinging ions, the exact evaluation of energy loss for swift ions in different materials is extremely important.
A close agreement between these calculated and experimentally measured values has been observed. Such calculations will provide an input towards the modeling or simulation for swift heavy ion induced changes in the properties of materials. Authors: Dmitri Zagorskiy, S.
Bedin, V. Oleinikov, V. Korotkov, V.
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- Luminescence from Lanthanide-Doped Nanoparticles.
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Kudryavtsev, B. Abstract: This paper is devoted to production of metallic micro-and nanowires Cu, Co, Ni and Fe using commercial track membranes. Specially prepared matrices were also fabricated and used for this purpose. The process of electrodeposition of these metals into the nanosized pores was investigated and found to be non-linear for small pores. The obtained ensembles of nanowires could be used as the effective templates for emission of molecules in mass-spectrometry. Mass-spectra of test peptide gramicidin deposited on substrate - ensemble of copper nanowires was obtained and investigated in different conditions.
Authors: Nital R. Panchal, Rajshree B. Abstract: Swift heavy ion irradiation of material is a unique tool to modify the properties of the material and it provides an alternative to photons for introducing electronic excitations into the material. FTIR spectra for pristine as well as the irradiated samples were recorded for wave number ranges from cm -1 using the KBr pellet method.
FTIR measurement of the bonds' vibration modes in all samples were carried out to determine the change in MO bonding due to irradiation. The MO absorption band is observed in all samples. The intensity of absorption bands increased in irradiated samples, which confirms the formation of strong ferric oxide band. Crystallinity of pristine and irradiated samples was investigated by XRD technique.
XRD result confirms the formation of mono phase. There is no significant change in peak position but the intensity is decreased and FWHM is increased continuously with ion fluence. XRD patterns confirm that the ferrite structure is retained even after irradiation. Surface morphology of pristine and irradiated samples was studied using a scanning electron microscopy.