Results 71 to 80 of about 1,783 (241)

Origins of Graphite Resistivity: Decoupling Stacking Fault and Rotational Misorientation

Advanced Science, EarlyView.
Interfacial dislocations critically influence interlayer transport in van der Waals (vdW) materials, yet quantifying their individual contributions remains challenging. We measure graphite's c‐axis resistivity and develop a decoupling strategy, revealing a resistivity ratio of ∼4507:74:1 for rotational misorientations, stacking faults, and AB stacking,
Weipeng Chen, Fuwei Yang, Tielin Wu, Yelingyi Wang, Quanshui Zheng, Deli Peng, Zhanghui Wu   +6 more
wiley   +1 more source

Some aspects for improvement of accelerated reproduction of not widespread exotics and highly ornamental cultivars in the southern steppe region of Ukraine

Vìsnik Dnìpropetrovsʹkogo Unìversitetu: Serìâ Bìologìâ, Ekologìâ, 2008
The technologies of agrotechnics of accelerated generative reproduction of the not widespread therophyllous exotic Liriodendron tulipifera L., accelerated vegetative reproduction of 16 therophyllous species and 8 taxa of evergreen exotics and highly ...
A. F. Rubtsov
doaj   +1 more source

Photonic Time Crystals and Time‐Varying Electromagnetic Metamatter: A New Direction for Ultrafast Tunable Photonic and Microwave Materials and Devices

Advanced Science, EarlyView.
Photonic time crystals (PTCs) are systems in which electromagnetic parameters are modulated periodically in time, producing momentum bandgaps via temporal scattering rather than spatial Bragg processes. This review examines the theoretical frameworks, modeling, and computational tools for time‐varying media, and summarizes experimental demonstrations ...
Ranjan Kumar Patel, Shriram Ramanathan, Ronald P. Jenkins, Michael J. Carter   +3 more
wiley   +1 more source

Transmission of Radio‐Frequency Waves and Nuclear Magnetic Resonance in Lanthanum Superhydrides

Advanced Science, EarlyView.
1H NMR and radio‐frequency transmission measurements of lanthanum superhydrides at 165 GPa reveals a transition at 260–280 K by a strong suppression of the signal intensity, significant changes in NMR spectra, including a dramatic decrease of the relaxation rate 1/T1T, and pronounced shielding effect, which may have a superconducting nature.
Dmitrii V. Semenok, Florian Bärtl, Di Zhou, Toni Helm, Sven Luther, Joachim Wosnitza, Ivan A. Troyan, Viktor V. Struzhkin, Hannes Kühne   +8 more
wiley   +1 more source

Spectroscopic Evidence of Edge‐Localized States in an Antiferromagnet Topological Insulator NdBi

Advanced Science, EarlyView.
Using spin‐polarized scanning tunneling microscopy (STM) in conjunction with quasiparticle interference, we successfully identify distinct signatures of the ferromagnetic and antiferromagnetic terminations in NdBi, a rare‐earth monopnictide exhibiting non‐trivial topology and magnetism. We demonstrate that step edges on ferromagnetic surfaces host well‐
Avior Almoalem, Rebecca Chan, Brinda Kuthanazhi, Juan Schmidt, Jose A. Moreno, Hermann Suderow, Paul Canfield, Taylor L. Hughes, Vidya Madhavan   +8 more
wiley   +1 more source

Fish diversity, composition and invasion of exotic fishes in river Yamuna under altered water quality conditions

Indian Journal of Animal Sciences, 2016
Impacts of water quality parameters on the fish diversity of the river Yamuna were studied from January 2010 to December 2011 at 11 sampling sites from uppermost Badwala to Allahabad.
K D JOSHI, A ALAM, D N JHA, S K SRIVASTAVA, V KUMAR   +4 more
doaj   +1 more source

Diversity and use of trees and shrubs in smallholder farming systems in the Colombian Andes

Caldasia, 2020
This article describes the diversity and use of trees and shrubs in smallholder farming systems in three municipalities of the department of Boyacá in the Colombian Andes, and tests the relations between spe-cies richness, use, and a set of socio ...
Néstor García, Juanita Peñaranda, Natalia Sarmiento   +2 more
doaj   +1 more source

Large Room Temperature Anomalous Nernst Effect Coupled with Topological Nernst Effect from Incommensurate Spin Structure in a Kagome Antiferromagnet

Advanced Science, EarlyView.
This study demonstrates that ErMn₆Sn₆, a kagome antiferromagnet hosting incommensurate spin textures, sustains finite scalar spin chirality that drives topological states. The anomalous Nernst effect (ANE) originates from the strong Berry curvature of Chern‐gapped Dirac fermions, while the topological Nernst effect (TNE) arises from emergent fields ...
Jiajun Ma, Jiaxing Liao, Yazhou Li, Yuwei Zhang, Jialu Wang, Jinke Bao, Yan Sun, Shuang Jia, Yuke Li   +8 more
wiley   +1 more source

Overview of the status/results in the exotics sector

EPJ Web of Conferences, 2016
Many exotic hadronic states beyond the conventional quark model (called char-moniumlike/bottomoniumlike states or XYZ particles) were found in the B-factories or energy scans of the cross sections of e+e− annhilation into conventional quarkonia and light
Shen Chengping, Li Changsheng
doaj   +1 more source

Recent Charmonium and Exotics Study at BESIII [PDF]

EPJ Web of Conferences
Recent progress in charmonium and exotic states has been reported in this proceeding. Using the data samples collected by the BESIII experiment, the mass and width of Y states have been extensively studied in hidden and open charm channels. The processes
Yan Liang
doaj   +1 more source