Results 231 to 240 of about 92,548 (300)

Proximity Induced Magnetic Anisotropy and Trefoil Fermiology in Monolayer FeCl2/Bi(111)

open access: yesAdvanced Materials, EarlyView.
Reorientation of magnetic anisotropy in a 2D van der Waals magnet is demonstrated in monolayer FeCl2 epitaxially grown on a bismuth substrate, from its natural out‐of‐plane direction to a predominantly in‐plane orientation. The FeCl2/bismuth heterostructure exhibits moiré‐induced interface states, suggesting strong coupling at the interface.
Shigemi Terakawa   +18 more
wiley   +1 more source

O2‐Accessible Fe–N4 Active Site Density Boosts Efficient Oxygen Reduction to Fuel‐Cell Level

open access: yesAdvanced Materials, EarlyView.
This study investigates the role of hierarchical nanostructure design in optimizing oxygen mass transport for the oxygen reduction. Using atomically dispersed Fe–N–C catalysts with solid, yolk‐shell, and hollow structures, it demonstrates that the yolk‐shell architecture provides superior O2 accessibility to active Fe–N4 sites.
Tianyu Zhang   +7 more
wiley   +1 more source

Stoichiometry‐Programmed MXenes via Precursor Engineering for High‐Performance EMI Shielding and Energy Storage

open access: yesAdvanced Materials, EarlyView.
Precursor carbon stoichiometry programs internal strain and oxygen substitution in Ti3AlCxO2‐x, deterministically switching Ti3CxO2‐xTz MXenes between highly aligned 2D nanosheets and spontaneous 1D nanoscrolls. This synthesis‐stage architecture control enables ultrathin X/W‐band EMI shielding with outstanding mass‐normalized performance and bending ...
Jaeeun Park   +12 more
wiley   +1 more source

Post quantum cryptography

open access: yes, 2014
In dieser Arbeit diskutieren wir neue Primitiven für Public-Key-Kryptographie, die sich als Alternativen zu den derzeit verwendeten RSA und ECC Kryptosystemen etablieren könnten. Die Analyse dieser Primitiven aus der Perspektive eines Entwicklers, zeigt dieVorteile der neuen Systeme.
openaire   +1 more source

Isotopically Selected Co‐Doping of 121Sb and 123Sb Pairs in Silicon

open access: yesAdvanced Materials, EarlyView.
Pairs of 121Sb and 123Sb atoms are doped into silicon using single cluster implantation and found to reside substitutionally within the crystal lattice due to self‐annealing with a Sb‐to Sb separation of ≈2 nm. Molecular dynamics simulations reproduce the observed experimental results and single ion cluster detection efficiencies of 94% are ...
Mason Adshead   +14 more
wiley   +1 more source

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