scholarly journals The superconducting transition width and illumination wavelength dependence of the response of MgO substrate YBCO transition edge bolometers

2007 ◽  
Vol 458 (1-2) ◽  
pp. 6-11 ◽  
Author(s):  
B. Oktem ◽  
A. Bozbey ◽  
I. Avci ◽  
M. Tepe ◽  
D. Abukay ◽  
...  
Keyword(s):  
Wavelength Dependence ◽  
Superconducting Transition ◽  
Transition Width ◽  
Transition Edge ◽  
Illumination Wavelength ◽  
Mgo Substrate

scholarly journals Current distribution and transition width in superconducting transition-edge sensors

2012 ◽  
Vol 101 (24) ◽  
pp. 242603 ◽  
Author(s):  
D. S. Swetz ◽  
D. A. Bennett ◽  
K. D. Irwin ◽  
D. R. Schmidt ◽  
J. N. Ullom
Keyword(s):  
Current Distribution ◽  
Transition Edge Sensors ◽  
Superconducting Transition ◽  
Transition Width ◽  
Transition Edge

scholarly journals Influence of the Interface Composition to the Superconductivity of Ti/PdAu Films

Nanomaterials ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 39
Author(s):  
Xiaolong Xu ◽  
Mauro Rajteri ◽  
Jinjin Li ◽  
Shuo Zhang ◽  
Jian Chen ◽  
...  
Keyword(s):  
Transition Edge Sensor ◽  
Energy Dispersive Spectrometer ◽  
Annealing Process ◽  
Bilayer Film ◽  
Superconducting Transition ◽  
Infiltration Process ◽  
Interface Composition ◽  
Transition Edge ◽  
Transmission Electron ◽  
Function Unit

In this work, the interface composition of the superconducting Ti/PdAu bilayer is tuned by an annealing process in N2 from 100 to 500 °C to control the superconducting transition temperature (Tc). This Ti-PdAu composition layer is characterized with a high-resolution transmission electron microscopy (HRTEM) and energy-dispersive spectrometer (EDS) to show the infiltration process. The surface topography, electrical, and cryogenic properties are also shown. The inter-infiltration of Ti and PdAu induced by the thermal treatments generates an intermixed layer at the interface of the bilayer film. Due to the enforced proximity effect by the annealing process, the Tc of Ti (55 nm)/PdAu (60 nm) bilayer thin films is tuned from an initial value of 243 to 111 mK which is a temperature that is suitable for the application as the function unit of a superconducting transition edge sensor.

scholarly journals Thermal fluctuation noise in Mo/Au superconducting transition-edge sensor microcalorimeters

2019 ◽  
Vol 125 (16) ◽  
pp. 164503 ◽  
Author(s):  
N. A. Wakeham ◽  
J. S. Adams ◽  
S. R. Bandler ◽  
S. Beaumont ◽  
J. A. Chervenak ◽  
...  
Keyword(s):  
Transition Edge Sensor ◽  
Thermal Fluctuation ◽  
Superconducting Transition ◽  
Transition Edge ◽  
Fluctuation Noise

Characterization of superconducting SmBa2Cu3O7 films grown by pulsed laser deposition

2002 ◽  
Vol 17 (10) ◽  
pp. 2599-2603 ◽  
Author(s):  
Q. X. Jia ◽  
S. R. Foltyn ◽  
J. Y. Coulter ◽  
J. F. Smith ◽  
M. P. Maley
Keyword(s):  
Transition Temperature ◽  
Critical Current Density ◽  
Pulsed Laser Deposition ◽  
Critical Current ◽  
Current Density ◽  
Deposition Temperature ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Superconducting Transition ◽  
Transition Width

We have investigated epitaxial superconducting SmBa2Cu3O7 (Sm123) films grown by pulsed-laser deposition on single-crystal SrTiO3 substrates. The deposition temperature plays an important role in determining the superconducting properties of Sm123 films. The superconducting transition temperature increases with the deposition temperature whereas the transition width decreases at deposition temperatures in the range of 700–875 °C. A Sm123 film deposited at 850 °C exhibits a transition temperature above 93 K with a transition width less than 0.5 K. Even though Sm123 films exhibit a higher transition temperature than Yba2Cu3O7 (Y123), the Sm123 shows lower critical current density at liquid-nitrogen temperature. The nominal critical current density of Sm123 film is less than 1 MA/cm2 at 75.4 K. Nevertheless, the Sm123 films have less anisotropy and stronger pinning characteristics compared to Y123. They are also much smoother with fewer particulates, as revealed by scanning electron microscopy.

scholarly journals Review on superconducting transition edge sensor based single photon detector

2014 ◽  
Vol 63 (20) ◽  
pp. 200303
Author(s):  
Zhang Qing-Ya ◽  
Dong Wen-Hui ◽  
He Gen-Fang ◽  
Li Tie-Fu ◽  
Liu Jian-She ◽  
...  
Keyword(s):  
Single Photon ◽  
Transition Edge Sensor ◽  
Superconducting Transition ◽  
Photon Detector ◽  
Single Photon Detector ◽  
Transition Edge

scholarly journals HONO and NO<sub>2</sub> evolution from irradiated nitrate-doped ice and frozen nitrate solutions

2006 ◽  
Vol 6 (5) ◽  
pp. 10713-10731 ◽  
Author(s):  
T. Bartels-Rausch ◽  
D. J. Donaldson
Keyword(s):  
High Temperature ◽  
Gas Phase ◽  
Water Surface ◽  
Wavelength Dependence ◽  
Surface Fluxes ◽  
Strong Temperature Dependence ◽  
Adsorption Processes ◽  
Illumination Wavelength ◽  
Monolayer Coverage ◽  
Nitrate Solutions

Abstract. Nitrate photolysis in the wavelength range 250–1200 nm was studied on ice in a controlled laboratory experiment. Monolayer coverage of nitrate was achieved by dosing well-known amounts of HNO3 from the gas phase onto a frozen water surface. Fluxes of HONO and NO2 into the gas phase with time were quantified at temperatures between 193 K and 258 K and as a function of illumination wavelength in the range: 250–345 nm. Whereas HONO release showed a strong temperature dependence at colder temperatures, attributed to reversible adsorption processes, NO2 fluxes were independent of temperature. The observed fluxes of HONO and NO2 at high temperature were not affected by diffusion or adsorption processes, and could be used to estimate a quantum yield for HONO formation of (3.8±0.6)×10−4. A different wavelength dependence for HONO and NO2 fluxes indicates that additional reactions besides nitrate photolysis and subsequent release of the products contribute to the emission of nitrogen oxides.

scholarly journals High-Frequency Noise Peaks in Mo/Au Superconducting Transition-Edge Sensor Microcalorimeters

2020 ◽  
Vol 200 (5-6) ◽  
pp. 192-199
Author(s):  
N. A. Wakeham ◽  
J. S. Adams ◽  
S. R. Bandler ◽  
S. Beaumont ◽  
M. P. Chang ◽  
...  
Keyword(s):  
High Frequency ◽  
Transition Edge Sensor ◽  
Frequency Noise ◽  
Superconducting Transition ◽  
High Frequency Noise ◽  
Transition Edge

Superconductivity of Dc Reactive Magnetron Sputtered Epitaxial TiN/NbN Superlattices

1992 ◽  
Vol 275 ◽  
Author(s):  
M. Shinn ◽  
B. -S. Hong ◽  
S. A. Barnett
Keyword(s):  
Magnetic Field ◽  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Film Surface ◽  
Wavelength Dependence ◽  
Reactive Magnetron ◽  
Superconducting Transition ◽  
X Ray Diffraction ◽  
X Ray ◽  
Transmission Electron

ABSTRACTEpitaxial B1-structure TiN/NbN superlattices have been grown by reactive magnetron sputtering On MgO(001). X-ray diffraction and transmission electron microscopy (TEM) diffraction spectra exhibited up to nine orders of superlattice reflections, indicating that the superlattice interfaces were relatively sharp. TEM images also showed well-defined layers. The superlattice wavelength (∧) dependence of the superconducting transition temperature (Tc), critical Current density (Jc), and electrical resistivity (ρ) have been investigated. Tc values increased from 12 K to 17 K with increasing ∧. Jc in a magnetic field perpendicular to the film surface ranged from 104 to 106 A/cm2, increasing with increasing wavelength and decreasing with increasing applied magnetic field. Jc in a field parallel to the film surface was > 10 times higher, ≈ 107 A/cm2. The resistivity exhibited different ∧ dependencies in three different A ranges.

Sign in / Sign up

Export Citation Format

Share Document