Results 131 to 140 of about 12,199,946 (296)

Atomically Modulating Competing Exchange Interactions in Centrosymmetric Skyrmion Hosts GdRu2X2 (X = Si and Ge)

open access: yesAdvanced Electronic Materials, EarlyView.
Our work bridges the gap between skyrmion discovery and material design by demonstrating how atomic‐scale control of exchange interactions enables tunable skyrmion phase transitions in centrosymmetric magnetic metals. ABSTRACT Magnetic skyrmions are topologically protected spin states that hold promise for shaping the future of electronics.
Dasuni N. Rathnaweera   +9 more
wiley   +1 more source

Photoelectric observations of lunar occultations at Engelhardt Astronomical Observatory [PDF]

open access: yes, 1998
Results of the lunar occultations observed from 1984 to 1997 at the Engelhardt Astronomical Observatory are reported. The times of lunar occultation for 63 stars, with a precision of a few milliseconds, and diameters for 12 stars have been ...
Rizvanov N., Shaimukhametov R.
core  

Intensity-sensitive quality assessment of extended sources in astronomical images [PDF]

open access: yes
Radio astronomy studies the Universe by observing the radio emissions of celestial bodies. Different methods can be used to recover the sky brightness distribution (SBD), which describes the distribution of celestial sources from recorded data, with the ...
Li, Xiaotong   +5 more
core   +1 more source

Low‐Power Control Of Resistance Switching Transitions in First‐Order Memristors

open access: yesAdvanced Electronic Materials, EarlyView.
Joule losses are a serious concern in modern integrated circuit design. In this regard, minimizing the energy necessary for programming memristors should be handled with care. This manuscript presents an optimal control framework, allowing to derive energy‐efficient programming voltage protocols for resistance switching devices. Following this approach,
Valeriy A. Slipko   +3 more
wiley   +1 more source

Astronomical society magellanic cloud

open access: yes, 2009
Astronomical society "Magellanic cloud" was founded on May 16, 2001 in the town of Prokuplje, Serbia, by A. Simonovic, A. Valjarevic, then students of geography at the University of Pristina, Z. Mijajlovic professor of mathematics, S. Segan, professor of
Simonović, Aleksandar   +3 more
core   +1 more source

High-resolution Solar Image Registration Using Unsupervised Deep Learning

open access: yesThe Astrophysical Journal
High-resolution solar images captured at different wavelengths are essential for understanding solar activity. However, such images often exhibit geometric discrepancies due to varying instrument resolutions and observation conditions, making image ...
Hao Zhang   +6 more
doaj   +1 more source

Methods in Critical Care

open access: yes, 1980
vii.484 hal.; 27 ...
Methods
core  

Exceptional Antimodes in Multi‐Drive Cavity Magnonics

open access: yesAdvanced Electronic Materials, EarlyView.
Driven‐dissipative cavity‐magnonics provides a flexible platform for engineering non‐Hermitian physics such as exceptional points. Here, using a four‐port, three‐mode system with controllable microwave interference, antimodes and coherent perfect extinction (CPE) are realized, enabling active tuning to antimode exceptional points.
Mawgan A. Smith   +4 more
wiley   +1 more source

A Fast, Second-order Accurate Poisson Solver in Spherical Polar Coordinates

open access: yesThe Astrophysical Journal Supplement Series
We present an efficient and accurate algorithm for solving the Poisson equation in spherical polar coordinates with a logarithmic radial grid and open boundary conditions.
Jeonghyeon Ahn   +2 more
doaj   +1 more source

Selective Tuning of Perpendicular Magnetic Anisotropy and Dzyaloshinskii–Moriya Interaction in Heterostructures Compatible with Magnetic Tunnel Junctions

open access: yesAdvanced Electronic Materials, EarlyView.
ABSTRACT Chirally coupled magnetic tunnel junctions (MTJs) have been proposed as a route toward compact spin logic architectures. Micromagnetic simulations indeed show that chiral coupling between adjacent MTJs with perpendicular magnetic anisotropy (PMA) can be achieved through an in‐plane (IP) interconnection mediated by the Dzyaloshinskii–Moriya ...
Bob Vermeulen   +14 more
wiley   +1 more source

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