Journal ArticleDOI
Fast thermoelectric response of normal state YBa2Cu3O7−δ films
TLDR
Normal state YBa2Cu3O7−δ films, epitaxially grown "off-c axis" with tilt angles up to 20°, are shown to be fast thermoelectric detectors for radiation from UV to far infrared wavelengths as mentioned in this paper.Abstract:
Normal state YBa2Cu3O7−δ films, epitaxially grown ‘‘off‐c axis’’ with tilt angles up to 20° are shown to be fast thermoelectric detectors for radiation from UV to far infrared wavelengths. Upon radiation heating of the tilted films a thermoelectric voltage arises due to the anisotropy of the thermopower in YBa2Cu3O7−δ. The response time is limited by the decaying temperature gradient and thus by heat diffusion. For thin films we have measured a response time from ≲1 ns in the UV to ∼5 ns in the far infrared. Because of the wavelength dependent reflectivity, the responsivity of the films varies between 0.5 V/MW and 20 V/MW. Thus, thin tilted YBa2Cu3O7−δ films can be used as fast room temperature detectors over a wide spectral range.read more
Citations
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Journal ArticleDOI
Designing a robustly metallic noncenstrosymmetric ruthenate oxide with large thermopower anisotropy
TL;DR: It is demonstrated that the electronic structure is unaffected by the inclusion of spin-orbit interactions, and that cation-ordered SrCaRu2O6 exhibits a large thermopower anisotropy derived from its polar structure.
Journal ArticleDOI
Tunability experiments at the FERMI@Elettra free-electron laser
Enrico Allaria,Andrea Battistoni,Filippo Bencivenga,Roberto Borghes,Carlo Callegari,Flavio Capotondi,D. Castronovo,Paolo Cinquegrana,Daniele Cocco,Daniele Cocco,Marcello Coreno,Paolo Craievich,Paolo Craievich,Riccardo Cucini,Francesco D'Amico,Miltcho B. Danailov,Alexander Demidovich,G. De Ninno,G. De Ninno,A. Di Cicco,S. Di Fonzo,M. Di Fraia,M. Di Fraia,S. Di Mitri,Bruno Diviacco,W. M. Fawley,Eugenio Ferrari,Adriano Filipponi,L. Froehlich,Alessandro Gessini,Erika Giangrisostomi,Luca Giannessi,Luca Giannessi,Dario Giuressi,Cesare Grazioli,Roberto Gunnella,R. Ivanov,Benoît Mahieu,Benoît Mahieu,Nicola Mahne,Claudio Masciovecchio,Ivaylo Nikolov,G. Passos,Emanuele Pedersoli,Giuseppe Penco,Emiliano Principi,Lorenzo Raimondi,R. Sergo,Paolo Sigalotti,Carlo Spezzani,Cristian Svetina,M. Trovo,Marco Zangrando +52 more
TL;DR: In this article, the first instance of FEL wavelength tuning, both in a narrow and in a large spectral range (fine- and coarse-tuning), was reported, and two different experiments were performed exploiting such FEL tuning.
Journal ArticleDOI
Time dependence of laser-induced thermoelectric voltages in La1−xCaxMnO3 and YBa2Cu3O7−δ thin films
TL;DR: In this paper, the time dependence of laser-induced thermoelectric voltage (LITV) in La1−xCaxMnO3 (LCMO) or YBa2Cu3O7−δ (YBCO) thin films grown on a vicinal SrTiO3 substrate is derived from the fitted curve of the measured time evolution of the LITV, several parameters of a LCMO thin film are deduced.
Journal ArticleDOI
Review on ferroelectric/polar metals
W. X. Zhou,Ariando Ariando +1 more
TL;DR: In this article, the authors discuss the reasons why the coexistence of ferroelectricity/polarity and conductivity have been deemed incompatible, followed by a review on the history of Ferroelectric/Polar metals.
Journal ArticleDOI
Transverse thermoelectric response of a tilted metallic multilayer structure
TL;DR: In this article, a tilted multilayer structure for detecting light was constructed by sintering of a compressed stack of copper/constantan/copper foils and cutting the stack obliquely to its axis.
References
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Book
Conduction of Heat in Solids
H. S. Carslaw,John Conrad Jaeger +1 more
TL;DR: In this paper, a classic account describes the known exact solutions of problems of heat flow, with detailed discussion of all the most important boundary value problems, including boundary value maximization.