Results 121 to 130 of about 23,629,022 (284)
Robust Spin Splitting and Fermiology in the Layered Altermagnet CoNb4${\rm CoNb}_4$Se8${\rm Se}_8$
Advanced Materials, EarlyView.The emergence of an altermagnetic phase is demonstrated in the cobalt‐intercalated superconducting 2H‐NbSe2 polymorph. A combined theoretical and experimental approach directly probes the magnetism, the altermagnetic lifting of Kramers degeneracy, and the electronic phase space, establishing CoNb4Se8 as the first g‐wave altermagnetic layered material ...
Alessandro De Vita +47 more
wiley +1 more source
A Simple Descriptor for Solid‐State Ionic Conductors Across Chemistries
Advanced Materials, EarlyView.Researchers develop a simple and transferable descriptor, distance contraction, for solid‐state ion migration across Li‐, Na‐, K‐, and Mg‐ion conductors and diverse anion chemistries. By capturing the maximum local contraction experienced by the migrating ion, the descriptor enables rapid materials screening and unifies diverse ion‐transport mechanisms.
Ramanuja Srinivasan Saravanan +4 more
wiley +1 more source
Extended security of lattice-based cryptography
Sécurité étendue de la cryptographie fondée sur les réseaux Euclidiens La cryptographie fondée sur les réseaux euclidiens représente une alternative prometteuse à la cryptographie asymétrique utilisée actuellement, en raison de sa résistance présumée à un ordinateur quantique universel.
openaire +2 more sources
Synthesis of Ti2B2Clx MBenes in Molten Salts From Theoretical and Experimental Perspectives
Advanced Materials, EarlyView.By integrating a theoretical framework with experiments, Ti2InB2 was selectively etched with ZnCl2 to produce a multilayer (ml) Ti2B2Clx MBene. The In atoms are completely removed, with simultaneous incorporation of chlorine surface terminations. in situ x‐ray diffraction indicates a direct biphasic transformation from Ti2InB2 to ml‐MBene, with no ...
Rodrigo M. Ronchi +15 more
wiley +1 more source
Advanced Materials, EarlyView.Cross‐sectional Lorentz TEM and off‐axis electron holography visualize the magnetic domain structure and quantify interlayer coupling in Fe3GeTe2/graphite/Fe3GeTe2 heterostructures. A stray‐field coupling length of 37±$\pm$7 nm marks the onset of domain misalignment between the layers.
Joachim Dahl Thomsen +6 more
wiley +1 more source
High-Performance Ideal Lattice-Based Cryptography on 8-Bit AVR Microcontrollers
, 2017 peer reviewedOver recent years lattice-based cryptography has received much attention due to versatile average-case problems like Ring-LWE or Ring-SIS that appear to be intractable by quantum computers.
Liu, Zhe +20 more
core +1 more source
Advanced Materials Interfaces, EarlyView.Thin SiGe buffer layers are grown by oxidative solid‐phase epitaxy, resulting in a nanopatterning of varying Ge concentration across the surface of the sample. The nanopatterning is caused by a hexagonal network of dislocations on the SiGe/Si(111) interface, and is visible by scanning electron microscopy, providing a non‐destructive method for ...
Sophie E. Bierer +7 more
wiley +1 more source
Lattice-Based Timed Cryptography [PDF]
Timed cryptography studies primitives that retain their security only for a predetermined amount of time, such as proofs of sequential work and time-lock puzzles.
Russell W. F. Lai, Giulio Malavolta
core
Efficient lattice-based cryptography. [PDF]
This thesis advances practical lattice-based cryptography. We propose Swoosh, a post-quantum non-interactive key exchange analogous to the Diffie–Hellman, requiring fewer communication rounds than currently standardised schemes. We introduce Gandalf, a compact ring signature scheme tailored for small rings, reducing signature sizes by 50%.
openaire +3 more sources
SciWith the development of quantum computing, classical cryptosystems (RSA, ECDSA) that ensure the security of distributed ledgers face an existential threat. This paper examines protocols for protecting personal data (PD) in blockchain, taking into account
Evgeniya Ishchukova +4 more
doaj +1 more source