Investigation of Hf/Ti bilayers for the development of transition-edge sensor microcalorimeters

• Victoria Y. Safonova,
• Anna V. Gordeeva,
• Anton V. Blagodatkin,
• Dmitry A. Pimanov,
• Anton A. Yablokov and
• Andrey L. Pankratov

Beilstein J. Nanotechnol. 2024, 15, 1353–1361, doi:10.3762/bjnano.15.108

• the entire 7 × 7 mm2 chip surface, bridges with a width of 200 μm and length up to 1800 μm, and bridges in the form of squares with sides from 100 to 1000 μm. The bridges were formed by a photolithographic lift-off process and are intended to be used as the main sensing element of a microcalorimeter

• is possible to fabricate microcalorimeters with δE less than 1 eV using these films. Keywords: hafnium; microcalorimeter; neutrino; superconducting transition width; superconductivity; TES; Introduction Over the last two decades, cryogenic microcalorimeters have found applications in various fields

• probability that these excitations will result in the vaporization of one or more helium atoms from the liquid surface. The vaporized atoms then strike the surface of the microcalorimeter, whose task is to determine their recoil energy. When such atoms are adsorbed on the surface of metals, in addition to the

Deformation-driven catalysis of nanocrystallization in amorphous Al alloys

• Rainer J. Hebert,
• John H. Perepezko,
• Harald Rösner and
• Gerhard Wilde

Beilstein J. Nanotechnol. 2016, 7, 1428–1433, doi:10.3762/bjnano.7.134

• bands and even promotes nanocrystal formation in those regions upon annealing. Melt-spun amorphous Al88Y7Fe5 alloy was intensely cold rolled. Microcalorimeter measurements at 60 °C indicated a slight but observable growth of nanocrystals in shear bands over the annealing time of 10 days. When the cold

• bands [39]. This letter yields further evidence that intense deformation does indeed affect the regions between shear bands and even promotes crystallization in non-shear band regions. Melt-spun amorphous Al88Y7Fe5 alloy was annealed in a TAM microcalorimeter (TA Instruments) at 60 °C, i.e., about 200 K

• below the glass-transition temperature [40]. The isothermal microcalorimeter trace of the as-spun ribbon shown in Figure 1 demonstrates that during the annealing time of 10 days the heat flux reaches a plateau with fluctuations on the order of approximately 7 nW/g. The trace for the as-spun ribbon