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 …

Exploring multi-anion chemistry in yttrium oxyhydrides: solid-state NMR studies and DFT calculations

S Banerjee, D Chaykina, R Stigter… - The Journal of …, 2023 - ACS Publications
Rare earth oxyhydrides REO x H (3–2 x), with RE= Y, Sc, or Gd and a cationic FCC lattice,
are reversibly photochromic in nature. It is known that structural details and anion (O2–: H–) …

[HTML][HTML] Impact of fast-solidification on all-d-metal NiCoMnTi based giant magnetocaloric Heusler compounds

F Zhang, Z Wu, J Wang, W Chen, Z Wu, X Chi, C Zhao… - Acta Materialia, 2024 - Elsevier
Recently, the all-d-metal Ni (Co) MnTi based Heusler compounds are found to have a giant
magnetocaloric effect (GMCE) near room temperature and manifest different functionalities …

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 …

Modification of the photochromic properties of oxygen-containing yttrium hydride by irradiation with keV and MeV ions

D Moldarev, M Wolff, D Primetzhofer - The Journal of Physical …, 2023 - ACS Publications
The effect of irradiation using energetic ions on the optical properties of photochromic YHO
was studied. Films were exposed to different fluences (Φ); projectiles and their primary …

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 …

Multistage positron acceleration by an electron beam-driven strong terahertz radiation

J Zhao, YT Hu, H Zhang, Y Lu, LX Hu, FQ Shao, TP Yu - Photonics, 2023 - mdpi.com
Laser–plasma accelerators (LPAs) have been demonstrated as one of the candidates for
traditional accelerators and have attracted increasing attention due to their compact size …

Defect Properties, Anion Ordering, and Photochromic Mechanism in Yttrium Oxyhydride

AJE Rowberg, CG Van de Walle - The Journal of Physical …, 2024 - ACS Publications
Yttrium oxyhydride (YHO) undergoes a reversible photochromic transition when exposed to
ultraviolet light. However, the mechanism for this transformation is not fully understood, and …

Correlating Photoconductivity and Optical Properties in Oxygen‐Containing Yttrium Hydride Thin Films

S Kazi, D Moldarev, MV Moro… - physica status solidi …, 2023 - Wiley Online Library
Oxygen‐containing yttrium hydride (YHO), primarily known for its photochromic properties,
simultaneously shows a photoconductive response. Polycrystalline YHO thin films are …