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Gómez, P. ; Jiménez, J. ; Martín, P. ; Piqueras de Noriega, Javier ; Domínguez-Adame Acosta, Francisco | American Institute of Physics | 1993-11-15The effect of oxygen loss on the luminescence of YBa_2Cu_3O_(7-x) has been investigated by cathodoluminescence (CL) in the scanning electron microscope (SEM) and by Raman microprobe measurements. The results herein indicate that a CL band at 530[...]texto impreso
Urchulutegui, M. ; Gómez, P. ; Piqueras de Noriega, Javier ; Dworschak, F. | Elsevier Science SA | 1994-05The effect of irradiation with 2.5 MeV electrons on InP single crystals is investigated by cathodoluminescence (CL) in the scanning electron microscope. Irradiation causes changes in the CL spectra but no luminescence band can be associated with[...]texto impreso
Superconducting Tl_2Ba_2Cu_1O(6+?) ceramics shows two broad luminescence bands centered at 430 nm (2.9 eV) and 530 nm (2.3 eV) wich can not be related to impurity phases. The intensity of the bands is inhomogeneously distributed in the sample an[...]texto impreso
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Gómez, P. ; Piqueras de Noriega, Javier ; Sayagues, M. J. ; Gonzálezcalbet, J. M. | Pergamon-Elsevier Science Ltd | 1995-10The influence of oxygen content of YBa_2Cu_3O_(7-x) ceramic samples on the cathodoluminescence emission has been studied in the scanning electron microscope. No luminescent band has been related to the presence of native oxygen vacancies in untr[...]texto impreso
Cruz, J. A. ; Turrero, M. J. ; Cáceres, J. O ; Marín Roldán, Alicia ; Ortega, A. I. ; Garralón, A. ; Sánchez, L. ; Gómez, P. ; Muñoz García, M. B ; Edwards, R. L. ; Martín Chivelet, Javier | Springer | 2015-07An absolute-dated stalagmite from Kaite Cave (Ojo Guaren ? a Karst Complex, N Spain) provides a nearly continuous, high-resolution record of a proxy of regional precipitation patterns through the 4.9–0.9 ka BP interval. This record is based on t[...]texto impreso
Gómez, P. ; Piqueras de Noriega, Javier ; Remon, A. ; Garcia, J. A. ; Jiménez, J. ; Torres, A. | Wiley-V C H Verlag Gmbh | 1996-10-16The effect of vacuum thermal annealing and electron irradiation on the luminescence of Bi_2Sr_2CaCu-2O_x ceramics has been investigated by cathodoluminescence (CL) in the scanning electron microscope (SEM), time-resolved photoluminescence (PL), [...]texto impreso
Luminescence properties of tetragonal Tl_2Ba_2Cu_1O_(6+ ?) have been investigated by cathodoluminescence (CL) in the scanning electron microscope (SEM). The intensity of CL emission is inhomogeneous in the sample and its distribution has been fo[...]texto impreso
Turrero, M.J. ; Garralón Lafuente, Antonio ; Sánchez Moreno, Lorenzo ; Ortega Martínez, Ana Isabel ; Martín Chivelet, Javier ; Gómez, P. ; Escribano, A. | Springer | 2014-09-23Drip-water chemistry in karstic caves can vary at seasonal to inter-annual scales in response to climatic factors such as temperature, rainfall, and seasonality, which determine changes in the hydrological and hydrochemical processes of the perc[...]
