Results 141 to 150 of about 241,989 (335)

Combining Mg–Zn–Ca Bulk Metallic Glass with a Mesoporous Silica Nanocomposite for Bone Tissue Engineering [PDF]

open access: gold, 2022
Yun Shin Chu   +4 more
openalex   +1 more source

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

open access: yesAdvanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai   +8 more
wiley   +1 more source

The Ultradiffuse Galaxy AGC 242019 with a Negative Metallicity Gradient

open access: yesThe Astrophysical Journal
The origin of ultradiffuse galaxies (UDGs) remains poorly understood. While the metallicity gradient can offer key clues about the formation mechanisms of UDGs, no such studies have been conducted for field UDGs.
Junbao Ni   +8 more
doaj   +1 more source

Local stellar kinematics from RAVE data - II. Radial metallicity gradient [PDF]

open access: bronze, 2011
B. Coşkunoğlu   +7 more
openalex   +1 more source

Single Pair of Weyl Points Evolve From Spin Group‐Protected Nodal Line in Half‐Metallic Ferromagnet V3S4

open access: yesAdvanced Functional Materials, EarlyView.
A spin group (SG)‐based mechanism is proposed to realize a single pair of Weyl points. PT‐symmetric nodal lines (NLs) persist under T‐breaking, protected by the combination of SG and P symmetry. When considering spin‐orbit coupling, the SG‐protected NL will split into Weyl points, which will also induce anomalous transport phenomena arising from ...
Shifeng Qian   +6 more
wiley   +1 more source

Exploring X-Ray Properties of Low-metallicity Dwarf Galaxies

open access: yesThe Astrophysical Journal
One of the primary outstanding questions in extragalactic astronomy is the formation and early evolution of the supermassive black holes that are seen in nearly every massive galaxy.
Jenna M. Cann   +5 more
doaj   +1 more source

Synchrotron Radiation for Quantum Technology

open access: yesAdvanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader   +10 more
wiley   +1 more source

Theoretical Diagnostics for Narrow-line Regions of Active Galactic Nuclei

open access: yesThe Astrophysical Journal
Gas metallicity, ionization parameter, and gas pressure can affect the observed ratios of specific strong emission lines within galaxies. While the theoretical strong lines diagnostics for gas metallicity, ionization parameters, and gas pressure in star ...
Peixin Zhu   +2 more
doaj   +1 more source

Coexistence of polar distortion and metallicity in PbTi1xNbxO3 [PDF]

open access: green, 2017
Junxing Gu   +9 more
openalex   +1 more source

Phonon‐Dominated Energy Transport in Purely Metallic Heterostructures [PDF]

open access: hybrid, 2022
Marc Herzog   +7 more
openalex   +1 more source

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