caa a22 4500 463226593 CHVBK 20180405153229.0 cr unu---uuuuu 170326e20070201xx s 000 0 eng 10.1007/s10853-006-1446-0 doi (NATIONALLICENCE)springer-10.1007/s10853-006-1446-0 Electrical switching and spectroscopic studies of silver-vanado-phosphate glasses [Elektronische Daten] [B. Eraiah, R. Anavekar, S. Asokan] High field electrical switching studies on x Ag2O − (50−x) P2O5 −50V2O5 glasses have been carried out as a function of sample thickness, composition and temperature. The I-V characteristic show that switching in these glasses is memory type. The switch voltages are found to decrease with increase of temperature, on the other hand, the voltages increase with the thickness of the sample. The experimental findings clearly reveal that switching in these glasses is a thermally assisted bulk effect. The results obtained are explained on the basis of formation of crystalline conducting channels. Another notable observation is that the glass with 15mol% Ag2O concentration only exhibits the switching property at room temperature. This aspect is examined in view of various structural groups present in these glasses with the help of spectroscopic studies; IR and MAS-NMR measurements have been carried out. IR studies of these glasses show characteristic absorption peaks corresponding phosphate and vanadium vibrations in the network. 31P MAS-NMR chemical shift show presence of [POO3/2]0 and [POO2/2O]− groups. Springer Science+Business Media, LLC, 2007 Eraiah B. Department of Physics, Karnatak University, 580 003, Dharwad, India aut Anavekar R. Department of Physics, Bangalore University, 560 056, Bangalore, India aut Asokan S. Department of Instrumentation, Indian Institute of Science, 560 012, Bangalore, India aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/3(2007-02-01), 784-788 0022-2461 42:3<784 2007 42 10853 https://doi.org/10.1007/s10853-006-1446-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-1446-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Eraiah B. Department of Physics, Karnatak University, 580 003, Dharwad, India aut NATIONALLICENCE 700 1- Anavekar R. Department of Physics, Bangalore University, 560 056, Bangalore, India aut NATIONALLICENCE 700 1- Asokan S. Department of Instrumentation, Indian Institute of Science, 560 012, Bangalore, India aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/3(2007-02-01), 784-788 0022-2461 42:3<784 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer