Results 91 to 100 of about 10,924 (262)
Historical Foundation and Practical Guideline for Ferroelectric Switching Kinetic Studies
Advanced Functional Materials, EarlyView.The P and U pulses in the conventional PUND measurements are not identical because of the interplay between switching current and the measurement circuit components. This circuit effect can lead to a shift in polarization transients and misinterpreted physics in the switching kinetics.
Yi Liang, Pat Kezer, John T. Heron
wiley +1 more source
Ultrasensitive Anti‐Stokes Luminescence Thermometry in Transition Metal Dichalcogenide Monolayers
Advanced Functional Materials, EarlyView.We demonstrate a highly sensitive nanothermometer using anti‐Stokes photoluminescence, also known as photoluminescence upconversion (UPL), in monolayer tungsten disulfide. A strong resonantly enhanced UPL is observed, confirming the central role of optical phonons in the PL upconversion mechanism.
Sharada Nagarkar +6 more
wiley +1 more source
CONDENSATE INTERFEROMETER ON AN ATOM CHIP
, 2007 電気通信大学博士（理学）2006In this thesis, trapped-atom interferometers are investigated using a Bose-Einstein condensate(BEC) on an atom chip in order to provide long coherence times.For the interferometer, a fast chip-based BEC production system was developed. By
ホリコシ, ムネカズ +2 more
core
Unraveling the Electronic Structure of Silicon Vacancy Centers in 4H‐SiC
Advanced Functional Materials, EarlyView.The electronic structure of the silicon vacancy in 4H‐SiC is probed via transient absorption spectroscopy, uncovering previously inaccessible excited states of the quartet and doublet spin channels, including the V2' transition. In combination with theoretical analysis, a comprehensive picture of the electronic structure is established.
Ali Tayefeh Younesi +9 more
wiley +1 more source
A dual-species two-MOT setup for preparing a Bose-Fermi mixture on an atom chip [PDF]
, 2008 Ein zwei-Spezies Doppel-MOT (magneto-optische Falle) Aufbau zur Herstellung einer Bose-Fermi Mischung auf einem Atom Chip wird präsentiert. Der experimentelle Aufbau, bestehend aus einem Laser System und einem zwei Kammer Vakuum Apparat wird beschrieben ...
Kuhnert, Maximilian
core
Atom chip microscopy: A novel probe for strongly correlated materials [PDF]
, 2011 Improved measurements of strongly correlated systems will enable the predicative design of the next generation of supermaterials. In this program, we are harnessing recent advances in the quantum manipulation of ultracold atomic gases to expand our ...
Lev, Benjamin L
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Unraveling MXene Oxidation Mechanisms Under Realistic Gas Environments by In Situ Gas‐Cell TEM
Advanced Functional Materials, EarlyView.Real‐time visualization of MXene degradation reveals a fundamental oxidation mechanism under oxygen and moisture environments. Using in situ gas‐cell electron microscopy, this study demonstrates that oxygen degradation drives a thermodynamically controlled high‐temperature transformation into mixed rutile/anatase phases.
Yongfa Cheng +8 more
wiley +1 more source
Measuring the Acceleration of Free Fall with an Atom Chip BEC Interferometer [PDF]
, 2011 We show that a Bose-Einstein condensate (BEC) interferometer on an atom chip is capable of making an absolute force measurement. We demonstrate this by making an absolute measurement of the gravitational acceleration g. We implement two interferometer
Baumgartner, Florian
core +1 more source
One-dimensional Bose gases on an atom chip [PDF]
Ultracold atomic gases have proven to be an excellent tool for research in quantum systems. A Bose gas can be trapped on an atom chip using very well defined and tunable spatially-dependent potentials.
Ferreras, Jorge
core +1 more source
Blood Biomarkers and Surface‐Enhanced Raman Spectroscopy for Gout: A Comprehensive Review
Advanced Functional Materials, EarlyView.Schematic illustrating gout disease progression from asymptomatic hyperuricemia to chronic tophaceous disease, highlighting the limitations of conventional imaging and biochemical diagnostics and the potential of engineered SERS platforms for ultrasensitive blood‐based detection of urate‐related biomarkers across disease stages, with the color gradient
Isuri Perera +6 more
wiley +1 more source