Results 241 to 250 of about 74,235 (303)

Out of the Crystalline Comfort Zone: Sampling the Initial Oxide Formation At Cu(111)

open access: yesAdvanced Science, EarlyView.
By combining replica exchange molecular dynamics with fast and efficient machine‐learned interatomic potentials, this computational study predicts the complex surface reconstructions accompanying the early Cu(111) surface oxidation. The unprecedentedly exhaustive sampling results in a high‐quality surface phase diagram that not only recovers known ...
Felix Riccius   +3 more
wiley   +1 more source

Anisotropic Charge Diffusion in Polar‐Layered Oxides for Ultralong Charge Retention

open access: yesAdvanced Science, EarlyView.
Anisotropic charge diffusion in epitaxially grown LAO thin films is reported, which enables ultralong charge retention. Surface‐accumulated oxygen vacancies effectively suppress out‐of‐plane electron hopping, allowing ≈90.9% of the surface charges to remain after a few weeks or longer.
Sungjun Choi   +7 more
wiley   +1 more source

Paradoxical Topological Soliton Lattice in Anisotropic Frustrated Chiral Magnets

open access: yesAdvanced Science, EarlyView.
The article describes the discovery of a stable skyrmion‐antiskyrmion lattice (S‐AL) in anisotropic frustrated chiral magnets. This lattice has a net‐zero topological charge due to a balanced population of skyrmions and antiskyrmions. This is a paradoxical finding since these particles normally annihilate each other.
Sayan Banik   +2 more
wiley   +1 more source

Mechanism of Anomalous Anisotropic Colossal Magnetoresistance in Quasi‐2D Mn3Si2Te6 Bulk Single Crystal

open access: yesAdvanced Science, EarlyView.
The external field exceeds Hd, the speed polarization abruptly reorients to align with the Mn magnetic moments, leading to an MR ≈ −100%. Abstract Mn3Si2Te6, quasi‐2D ferrimagnetic semiconductor, exhibits anomalous saturated colossal magnetoresistance (CMR) only when a magnetic field is applied along its magnetic hard magnetization axis, suggesting ...
Shiqi Li   +10 more
wiley   +1 more source

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