EPR studies of the oxyfluoride glass ceramics using Mn2+as a paramagnetic probe
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منابع مشابه
Distribution of Nd3+ ions in oxyfluoride glass ceramics
It has been an open question whether Nd3+ ions are incorporated into the crystalline phase in oxyfluoride glass ceramics or not. Moreover, relative research has indicated that spectra characters display minor differences between before and after heat treatment in oxyfluoride glass compared to similar Er3+-, Yb3+-, Tm3+-, Eu3+-, etc.-doped materials. Here, we have studied the distribution of Nd3...
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Upconversion luminescence has been studied for Er in a germanate-oxyfluoride and a tellurium-germanate-oxyfluoride transparent glass-ceramic using 800 nm excitation. Significantly increased upconversion luminescence was observed from transparent glass-ceramics compared with that from their corresponding as-prepared glasses. In addition to a strong green emission centered at 545 nm from S3/2 sta...
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In the present study, the oxyfluoride glasses of SiO2-Al2O3-CaF2 system containing different amounts of Y3+ ions were prepared through the convenient melting method. The crystallization temperatures and size of the CaF2 nanocrystals were obtained from DTA curves and XRD patterns, respectively. As a consequence, the optimum amount...
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Electron Paramagnetic Resonance (EPR) spectroscopy, also known as Electron Spin Resonance(ESR) especially among physicists, is a strong and versatile spectroscopic method forinvestigation of paramagnetic systems, i.e. systems like free radicals and most transition metalions, which have unpaired electrons. The sensitivity and selectivity of EPR are notable andintriguing as compared to other spec...
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1 Instituto de Cerámica y Vidrio, Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain, 2 Microdevices for Photonics Laboratory (MIP-LAB), Istituto di Fisica Applicata “Nello Carrara”, Consiglio Nazionale delle Ricerche (CNR), Sesto Fiorentino, Italy, 3 Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi, Roma, Italy, 4 Instituto de Catálisis y Petroleoquímica, Co...
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ژورنال
عنوان ژورنال: IOP Conference Series: Materials Science and Engineering
سال: 2010
ISSN: 1757-899X
DOI: 10.1088/1757-899x/15/1/012068