Results 41 to 50 of about 1,137 (158)

High‐Pressure Modulation of Breathing Kagome Lattice: Cascade of Lifshitz Transitions and Evolution of the Electronic Structure

Advanced Science, EarlyView.
External pressure directly tunes the breathing distortion of the kagome lattice in Fe3Sn2, suppressing it near 15 GPa and reversing it at higher pressures. This structural modulation drives a cascade of Lifshitz transitions, reconstructs the Fermi surface, strengthens electronic correlations and carrier localization, and modifies ultrafast electron ...
Marcos Vinicius Gonçalves‐Faria, Maxim Wenzel, Yuk Tai Chan, Olga Iakutkina, Francesco Capitani, Davide Comboni, Michael Hanfland, Qi Wang, Hechang Lei, Martin Dressel, Alexander A. Tsirlin, Alexej Pashkin, Stephan Winnerl, Manfred Helm, Ece Uykur   +14 more
wiley   +1 more source

Broadband Kinetic Alfvén Waves and the Pitch Angle Distribution of Relativistic Electrons

Geophysical Research Letters
A statistical survey using 3 years of Van Allen Probes data from 2013 to 2015 is conducted to investigate the impact of broadband kinetic Alfvén waves (KAWs) on the pitch angle distributions (PADs) of relativistic electrons. 62 events exhibiting distinct
K. C. Barik, C. C. Chaston
doaj   +1 more source

AI‐Assisted Tumor Boundary Delineation via Targeted Ultrasmall Iron Oxide Nanoprobe for High‐Contrast HER2‐Positive Tumor Imaging

Advanced Science, EarlyView.
A novel targeted and pH‐responsive MRI contrast agent was integrated with a 3D nnU‐Net deep learning framework to enable accurate delineation of tumor boundary morphology in HER2‐positive breast cancer imaging. ABSTRACT Breast cancer continues to be a leading cause of cancer‐related mortality in women globally, where precise diagnosis and clear tumor ...
Jiaying Zheng, Yi Zhu, Xinrui Li, Sunxian Dai, Xiangyuan Ma, Hongwei Lu, Zhongling Wang, Benqing Zhou   +7 more
wiley   +1 more source

First velocity-space resolved measurements of relativistic electron losses in a magnetically confined plasma

Nuclear Fusion
This letter reports on the first direct velocity-space resolved measurements of runaway electrons (REs) losses in magnetically confined plasmas using a unique Fast Particle Loss Detector (FPLD) installed on the magnetic confinement fusion device Tokamak ...
J. Poley-Sanjuán, L. Simons, A. Jansen Van Vuuren, B.P. Duval, A. Fasoli, A.N. Karpushov, J. Decker, the TCV Team   +7 more
doaj   +1 more source

Processes in auroral oval and outer electron radiation belt

Earth, Planets and Space, 2018
We have analyzed the role of auroral processes in the formation of the outer radiation belt, considering that the main part of the auroral oval maps to the outer part of the ring current, instead of the plasma sheet as is commonly postulated.
Elizaveta E. Antonova, Marina V. Stepanova, Pablo S. Moya, Victor A. Pinto, Vadim V. Vovchenko, Ilya L. Ovchinnikov, Nikita V. Sotnikov   +6 more
doaj   +1 more source

ZrCo3B2 and HfCo3B2 Electrodes Go on Stage for Oxygen Evolution Reaction

Advanced Science, EarlyView.
The intermetallic compounds ZrCo3B2 and HfCo3B2 with distinctive chemical bonding features are excellent OER precursors, restructuring into OER‐active electrocatalysts delivering significantly high OER activities compared to the elemental Co, which is obvious from their lower onset potentials and increased obtained current densities.
Fatma Aras, Ulrich Burkhardt, Simone G. Altendorf, Yuri Grin, Iryna Antonyshyn   +4 more
wiley   +1 more source

Precipitation of Radiation Belt Electrons by EMIC Waves With Conjugated Observations of NOAA and Van Allen Satellites

Geophysical Research Letters, 2018
In this letter, we present unique conjugated satellite observations of MeV relativistic electron precipitation caused by electromagnetic ion cyclotron (EMIC) waves. On the outer boundary of the plasmasphere, the Van Allen probe observed EMIC waves.
Zhigang Yuan, Kun Liu, Xiongdong Yu, Fei Yao, Shiyong Huang, Dedong Wang, Zhihai Ouyang   +6 more
doaj   +1 more source

Disorder Driven Anisotropic Nonlinear Hall Effect in the Kagome Metal YbCo6Ge6 at Room Temperature

Advanced Science, EarlyView.
The intrinsic structural disorder and short‐range correlated motifs in the kagome metal YbCo6Ge6 constitute the primary mechanism for a robust and anisotropic nonlinear Hall effect (NLHE). This effect is sustained across a wide temperature range, achieving a nonlinear responsivity of up to ∼4.5 × 10−3 m/V at 70 K, higher than known disordered and ...
Qurat Ul Ain, Weiyao Zhao, Thanh Tung Huynh, Yuefeng Yin, Fang Tang, Yong Fang, Junlin Yan, Jacek Jasieniak, Timothy Petersen, Yang Liu, Nikhil V. Medhekar, Julie Karel   +11 more
wiley   +1 more source

In Situ Observations of the Influence of Nonlinear EMIC Waves on Relativistic Electrons in the Outer Radiation Belt

Geophysical Research Letters
This study demonstrates the influence of electromagnetic ion cyclotron (EMIC) rising‐tone emissions on relativistic electrons in the inner magnetosphere using data obtained from the Van Allen Probes and Arase satellites.
Chae‐Woo Jun, Yoshizumi Miyoshi, Tomoaki Hori, Jacob Bortnik, Larry Lyons, Khan‐Hyuk Kim, Takefumi Mitani, Takeshi Takashima, Iku Shinohara, Nana Higashio, Ayako Matsuoka, Kazuhiro Yamamoto, Mariko Teramoto   +12 more
doaj   +1 more source

Controllable Superconductivity in Suspended NbSe2

Advanced Electronic Materials, EarlyView.
Suspended NbSe2${\rm NbSe}_2$ provides two complementary routes for controlling superconducting transport. Gate‐driven deformation strains the suspended crystal and tunes its critical temperature and current. Weak thermal anchoring enhances thermal feedback, contributing to multistep hysteresis and negative differential resistance.
Ruihuan Fang, Cuiju Yu, Youqiang Huang, Tosson Elalaily, Yuvraj Chaudhry, Yaoqiang Zhou, Andres Castellanos‐Gomez, Sanshui Xiao, Jiwon Park, Hyunyong Choi, Fida Ali, Hanlin Fang, Jose L. Lado, Pertti Hakonen, Zhipei Sun   +14 more
wiley   +1 more source