Electrostatic control of the proximity effect in the bulk of semiconductor-superconductor hybrids

N Van Loo, GP Mazur, T Dvir, G Wang… - Nature …, 2023 - nature.com
The proximity effect in semiconductor-superconductor nanowires is expected to generate an
induced gap in the semiconductor. The magnitude of this induced gap, together with the …

Memory effect in photochromic rare-earth oxyhydride thin films studied by in situ positron annihilation spectroscopy upon photodarkening-bleaching cycling

Z Wu, L De Wit, M Beek, G Colombi, D Chaykina… - Physical Review …, 2024 - APS
Cycling stability of the photochromic effect in rare-earth oxyhydride thin films is of great
importance for long-term applications such as smart windows. However, an increasingly …

[HTML][HTML] Photochromism in rare earth oxyhydrides for large-area transmittance control

J Montero-Amenedo - Solar Energy Materials and Solar Cells, 2024 - Elsevier
Photochromic coatings are attractive materials for achieving dynamic transmittance control
in glazing. However, state-of-the-art photochromic materials are either not durable enough …

Aliovalent calcium do** of yttrium oxyhydride thin films and implications for photochromism

D Chaykina, I Usman, G Colombi… - The Journal of …, 2022 - ACS Publications
To develop an understanding of the photochromic effect in rare-earth metal oxyhydride thin
films (REH3–2 x O x, here RE= Y), we explore the aliovalent do** of the RE cation. We …

Large Polaron Conduction, Photoconductivity, and Photochromism in GdOxH3−2x Oxyhydride Thin Films

G Colombi, B Boshuizen, D Chaykina… - Advanced Optical …, 2023 - Wiley Online Library
At ambient conditions, rare‐earth oxyhydride thin films show reversible photochromism and
photoconductivity, while their mechanism and relation are still unclear. In this work, this …

[HTML][HTML] Effects of H vacancies on photochromic properties of oxygen-containing yttrium hydride

D Moldarev, E Pitthan, M Wolff… - Nuclear Instruments and …, 2024 - Elsevier
We present in-situ studies of H loss from YHO films using ion beam analysis and its effect on
the photochromic properties. The film evaporates loosely bound H under exposure to a …

Isotope-dependent site occupation of hydrogen in epitaxial titanium hydride nanofilms

T Ozawa, Y Sugisawa, Y Komatsu, R Shimizu… - Nature …, 2024 - nature.com
Hydrogen, the smallest and lightest element, readily permeates a variety of materials and
modulates their physical properties. Identification of the hydrogen lattice location and its …

Evidence of local structural distortions and subtle thermal disorder in transparent photochromic yttrium oxyhydride

H Arslan, I Pudza, A Kuzmin, S Karazhanov - Applied Physics Letters, 2024 - pubs.aip.org
The structural properties of photochromic yttrium oxyhydride powder in its transparent state
were examined using x-ray diffraction and temperature-dependent extended x-ray …

Thermoelectric performance enhancement of environmentally‐friendly SrTiO3 epitaxial films by hydrogen substitution

M Kimura, M Ochiai, X He, T Katase, H Hiramatsu… - EcoEnergy, 2024 - Wiley Online Library
Develo** high‐efficiency and environmentally‐friendly thermoelectric materials has been
a significant challenge. Conventional thermometric materials consist of heavy (toxic) …

Chemical state and atomic structure in stoichiovariants photochromic oxidized yttrium hydride thin films

H Arslan, A Kuzmin, I Aulika, D Moldarev… - Zeitschrift für …, 2024 - degruyter.com
We investigate the effective oxidation state and local environment of yttrium in photochromic
YHO thin film structures produced by e-beam evaporation, along with their chemical …