Results 181 to 190 of about 6,857,496 (360)

Fresnel Magnetic Imaging of Ultrasmall Skyrmion Lattices

open access: yesAdvanced Science, EarlyView.
This study uncovers periodic contrast reversal in ultrasmall skyrmion lattice imaging through defocus‐modulated Fresnel magnetic microscopy, elucidating its origin in the sinusoidal contrast transfer function mechanism and providing fundamental insights into defocus‐mediated phase‐to‐intensity conversion processes in nanoscale magnetic imaging ...
Yongsen Zhang   +11 more
wiley   +1 more source

Chemically Driven Nano‐Elastic Heterogeneities Control Fragility in Volcanic Melts

open access: yesAdvanced Science, EarlyView.
The study elucidates how nanoscale structural heterogeneity governs the mechanical behavior of volcanic glasses across compositions from basalt to rhyolite. Using a physicochemical framework, correlation length (ξ) and microscopic free volume (Vc) are derived from vibrational and physical properties, revealing systematic trends with silica content that
Michele Cassetta   +13 more
wiley   +1 more source

Maximal Rashba Splitting in GeTe/Bi2Te3 Heterostructures via Strong Band Bending

open access: yesAdvanced Science, EarlyView.
An unprecedented strength of Rashba effect with ER = 0.57 eV, k0=0.16Å−1$\;{k_0} = 0.16\;{\mathrm{\AA}^{ - 1}}$ and αR=6.86eV·Å$ {\alpha _{\mathrm{R}}} = 6.86{\mathrm{\;eV}} \cdot {\mathrm{\AA}}$ in GeTe (1 nm)/Bi2Te3 (1 QL) heterostructure. The enhanced Rashba is origined from the band bending effect in the heterojunction region of GeTe /Bi2Te3 ...
Qing‐Lin Yang   +14 more
wiley   +1 more source

Single-shot laser-driven neutron resonance spectroscopy for temperature profiling

open access: yesNature Communications
The temperature measurement of material inside of an object is one of the key technologies for control of dynamical processes. For this purpose, various techniques such as laser-based thermography and phase-contrast imaging thermography have been studied.
Zechen Lan   +14 more
doaj   +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

Multicharged Zwitterions form Superior Antifouling Interfaces

open access: yesAdvanced Science, EarlyView.
Bolaamphiphilic multicharged sulfobetaine zwitterion forms self‐assembled monolayer for antifouling applications and vesicular aggregates for drug delivery applications. Abstract The long‐term prevention of unwanted protein and microbial accumulation on surfaces, including medical devices, remains a significant and largely unresolved challenge. Decades
Declan Meehan   +6 more
wiley   +1 more source

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