Results 81 to 90 of about 614,140 (290)

Synthesis of Bulk Superconducting LiNbO2 Crystals Through CaH2 Reduction

Advanced Materials, EarlyView.
CaH2 reduction reconstructively transforms insulating LiNbO3 single crystals into superconducting bulk LiNbO2 with a critical temperature of Tc = 14.4 K. Scanning electron microscopy reveals large‐volume, high‐yield phase conversion. Magnetization measurements demonstrate a robust ∼ 77% Meissner shielding fraction, establishing bulk superconductivity ...
Ryan Paxson, Stephanie J. Hong, Bicky S. Moirangthem, Parham Kabirifar, Saya Takeuchi, Tianyu Li, Chih‐Yu Lee, Haotong Liang, Keenan Avers, Kamal R. Joshi, Amlan Datta, Makariy A. Tanatar, Shanta Saha, Joseph A. Dura, Peter Zavalij, Johnpierre Paglione, Ruslan Prozorov, Alexander J. Grutter, Efrain E. Rodriguez, Ichiro Takeuchi   +19 more
wiley   +1 more source

Chiral Phonon–Driven Ultrafast Spin Currents in a Non‐Magnetic Ferroelectric

Advanced Materials, EarlyView.
Broadband terahertz emission spectroscopy shows signatures of ultrafast spin‐current generation in non‐magnetic ferroelectric β$\beta$’‐In2Se3${\rm In}_2{\rm Se}_3$. Reversal of the emitted field upon sample inversion and substitution of Pt with W indicates spin‐Hall‐mediated charge conversion, while polarization‐resolved measurements reveal ...
Thomas B. Gill, Ahmet Yagmur, Matthew Rogers, Luke Benson, Nathan Fox, Ben Muggleton, Zabeada Aslam, Conor McCluskey, Phoenix Robinson, Oscar Cespedes, Bryan Hickey, Timothy Moorsom, Marty Gregg, Edmund H. Linfield, Sukhdeep Dhillon, Satoshi Sasaki, Joshua R. Freeman   +16 more
wiley   +1 more source

Beam-combining superconducting detector for submillimetre-wave astronomical interferometry

, 2016
The feasibility of making single-chip, superconducting detectors for submillimetre-wave astronomical inteferometry is demonstrated. An experimental device based on back-to-back corrugated horns, and back-to-back finline transitions, was fabricated.

core   +1 more source

Ausheilen und Kalibrieren von Infrarot-Detektoren mit Infrarot-Diodenlasern

, 2022
S.373-377 : Abb.,Lit.High sensitivity infrared detectors made from extrinsic semiconductors are of considerable importance for astronomical missions on satellites in earth orbit. High energy radiation changes their sensitivity and their calibration.
Lemke, D., Schießl, U., Tacke, M.
core   +1 more source

X-Ray Polarization Study of Pulsar Wind Nebulae with eXTP: Simulation Results and Scientific Prospects

The Astrophysical Journal
X-ray polarization observations of pulsar wind nebulae (PWNe) provide crucial insights into magnetic field structures and particle acceleration mechanisms.
Kuan Liu, Fei Xie, Ming-Yu Ge, Wei Deng, En-Wei Liang   +4 more
doaj   +1 more source

Near‐Infrared Imaging of H2O2 in Plants With Nanosensors Under Environmentally Changing Conditions

Advanced Materials, EarlyView.
This paper reports a ratiometric nanosensor enabling robust, multivariate detection of stress signals (H2O2) in plants, with high resistance to light fluctuations and mechanical disturbances. Single‐walled carbon nanotubes serve as the sensor, Egyptian Blue nanosheets serve as a stable reference, and plant autofluorescence serves as a label‐free ...
Jiaqi Li, Bjoern F. Hill, Chen Ma, Juliana Gretz, Tanuja Kistwal, Janus A. C. Wartmann, Justus T. Metternich, Juan Pablo Giraldo, Sebastian Kruss   +8 more
wiley   +1 more source

Infrared receivers for low background astronomy: Incoherent detectors and coherent devices from one micrometer to one millimeter [PDF]

, 1979
The status of incoherent detectors and coherent receivers over the infrared wavelength range from one micrometer to one millimeter is described. General principles of infrared receivers are included, and photon detectors, bolometers, coherent receivers ...
Greenberg, L. T., Mccreight, C. R., Houck, J. R., Low, F. J., Weiss, R., Richards, P. L., Boggess, N. W., Rank, D. M., Hauser, M. G.   +8 more
core  

Transient and steady-state response properties of movement detectors [PDF]

, 1989
Egelhaaf M, Borst A. Transient and steady-state response properties of movement detectors. Journal of the Optical Society of America, A: Optics, Image Science, and Vision.
Egelhaaf, M., Borst, Alexander, Egelhaaf, Martin ; https://orcid.org/, Borst, A.   +3 more
core   +1 more source

Design, Testing, and Commissioning of the Sun Yat-sen University (SYSU) 80 cm Infrared Telescope

The Astronomical Journal
The Sun Yat-sen University 80 cm telescope is a new-generation near-infrared (NIR) facility in China dedicated to time-domain astronomy, while also serving as a testbed for emerging NIR cameras.
Zhong-Nan Dong, Bin Ma, Chun Chen, Wei-Sen Huang, Jin-Ji Li, Jia-Qi Lin, Yun Shi, Hao-Ran Zhang, Duo-Le Cao, Bao-Gang Chen, Tai-Ran Deng, Rui-Chen Gao, Yi Hu, Hong-Zhuang Li, Xia Li, Pu Lin, Yang Liu, Bo Ma, Rong-Feng Shen, Li-Duo Song, Fang-Yu Xu, Hao-Nan Yang, Yan Yu, Jun Yuan, Xiang-Tao Zeng, Hao-Yuan Zheng   +25 more
doaj   +1 more source

Wafer‐Scale Direct Growth of Ultraclean Monolayer Amorphous Carbon on c‐Sapphire by Remote Catalytic Dehydrogenation

Advanced Materials, EarlyView.
Remote catalytic dehydrogenation enables the direct growth of monolayer amorphous carbon on a 2‐inch sapphire wafer by thermal CVD. Spatial separation of the catalyst from the growth substrate eliminates metallic residue and post‐growth processing, yielding a wafer‐scale uniform film with a random polygonal sp2‐hybridized carbon network that exhibits ...
Muhammad Sabbtain Abbas, Imhwan Kim, Seokje Lee, Yasir Hassan, Jihwan Kim, Eunsu Lee, Han Ik Kim, Yoonkang Kim, Gyu‐Chul Yi   +8 more
wiley   +1 more source