Results 141 to 150 of about 9,521 (349)

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

Resolving the Unresolved: Using NESSI to Search for Unresolved Companions in Low-mass Disk Wide Binaries

open access: yesThe Astronomical Journal
Stellar systems consisting of three or more stars are not an uncommon occurrence in the Galaxy. Nearly 50% of solar-type wide binaries with separations >1000 au are actually higher-order multiples with one component being a close binary.
Zachary D. Hartman   +4 more
doaj   +1 more source

Logic Functionality and Circuit Design of In2Se3‐Based Split‐Gate Ferroelectric Field‐Effect Transistor for Zero‐Trust Applications

open access: yesAdvanced Electronic Materials, EarlyView.
ABSTRACT Van der Waals ferroelectric materials are emerging as key building blocks for future logic devices and integrated circuits. Among them, α‐In2Se3 offers a unique combination of robust room temperature ferroelectricity and semiconducting behavior.
Ankita Ram   +10 more
wiley   +1 more source

4th Workshop of Young Researchers in Astronomy & Astrophysics [PDF]

open access: yes, 2006
It is a great pleasure for the Organizers to present the proceedings already the Fourth Workshop of Young Researchers in Astronomy & Astrophysics. Six years ago the Organizers of the first meeting of these conference series declared that their intention ...

core  

Data Release 1 of the Dark Energy Spectroscopic Instrument

open access: yesThe Astronomical Journal
In 2021 May the Dark Energy Spectroscopic Instrument (DESI) collaboration began a 5 yr spectroscopic redshift survey to produce a detailed map of the evolving three-dimensional structure of the Universe between z = 0 and z  ≈ 4.
DESI Collaboration   +309 more
doaj   +1 more source

Electric Field‐Induced Hole‐ and Electron‐Type Flat Bands in Twisted Double Bilayer Graphene

open access: yesAdvanced Electronic Materials, EarlyView.
The electronic structure of twisted double bilayer graphene is visualized using angle‐resolved photoemission spectroscopy with micrometer spatial resolution at twists of 3.1∘$^\circ$ and 6.0∘$^\circ$ as a function of gate voltage. Tunable hybridization effects and flat band formation occurs between valence and conduction band states due to a finite ...
Zhihao Jiang   +13 more
wiley   +1 more source

Teaching practical astronomy at a professional observatory [PDF]

open access: yes, 2016
In 1988 Southampton University established a new Programme of Study, Physicswith- Astronomy and it was felt to be essential to provide the students with detailed practical experience in observational astronomy.
Coe, Malcolm J
core   +1 more source

LOCAL WISDOM TECHNOLOGY: The Bintang Lhee as Qibla Direction Instrument in Contemporary Aceh

open access: yesJournal of Contemporary Islam and Muslim Societies
This qualitative case study explores Bintang Lhee, a traditional Acehnese astronomical method for determining the qibla direction through naked-eye observation of three aligned stars (Alnitak, Alnilam, and Mintaka).
Machzumy Machzumy   +2 more
doaj   +1 more source

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