RT Journal Article
T1 Calculations of Some Doping Nanostructurations and Patterns Improving the Functionality of High-Temperature Superconductors for Bolometer Device Applications
A1 Castaño Verde, José Lorenzo
A1 Viz, Alberto S.
A1 Martínez Botana, José Martín
A1 Montero Orille, Carlos
A1 Vázquez Ramallo, Manuel
K1 Superconducting Devices
K1 Photodetectors
K1 Nanostructured Materials
K1 Nanostructured And Microstructured Superconductors
K1 High Temperature Superconductors
K1 Bolometers
AB We calculate the effects of doping nanostructuration and the patterning of thin films ofhigh-temperature superconductors (HTS) with the aim of optimizing their functionality as sensingmaterials for resistive transition-edge bolometer devices (TES). We focus, in particular, on spatialvariations of the carrier doping into the CuO2 layers due to oxygen off-stoichiometry, (that induce,in turn, critical temperature variations) and explore following two major cases of such structurations:First, the random nanoscale disorder intrinsically associated to doping levels that do not maximizethe superconducting critical temperature; our studies suggest that this first simple structurationalready improves some of the bolometric operational parameters with respect to the conventional,nonstructured HTS materials used until now. Secondly, we consider the imposition of regulararrangements of zones with different nominal doping levels (patterning); we find that such regularpatterns may improve the bolometer performance even further. We find one design that improves,with respect to nonstructured HTS materials, both the saturation power and the operating temperaturewidth by more than one order of magnitude. It also almost doubles the response of the sensorto radiation
PB MDPI
YR 2020
FD 2020
LK http://hdl.handle.net/10347/21783
UL http://hdl.handle.net/10347/21783
LA eng
NO Verde, J.C.; Viz, A.S.; Botana, M.M.; Montero-Orille, C.; Ramallo, M.V. Calculations of Some Doping Nanostructurations and Patterns Improving the Functionality of High-Temperature Superconductors for Bolometer Device Applications. Nanomaterials 2020, 10, 97.
NO This work was supported by projects FIS2016-79109-P (AEI/FEDER, UE) andAYA2016-78773-C2-2-P(AEI/FEDER,UE), by the Xunta de Galicia under grants ED431D 2017/06 and ED431C2018/11, the Consellería de Educación Program for Development of a Strategic Grouping in Materials AeMATunder Grant No. ED431 2018/08, Xunta de Galicia, and by the CA16218 nanocohybri COST Action. JCV thanksthe Spanish Ministry of Education for grant FPU14/00838
DS Minerva
RD 28 abr 2026