Results 91 to 100 of about 334,237 (330)

Minimizing heating generation in quantum dot LEDs by increasing quasi-Fermi level splitting [PDF]

, 2023
Yan Gao, Bo Li, Jiaonan Liu, Huaibin Shen, Yang Song, Jiaojiao Song, Zhijie Yan, Xiaohan Yan, Yihua Chong, Ruyun Yao, Shujie Wang, Lin Song Li, Fengjia Fan, Zuliang Du   +13 more
openalex   +1 more source

Low‐Symmetry Weyl Semimetals: A Path to Ideal Topological States

Advanced Functional Materials, EarlyView.
This study presents a theoretical framework for realizing ideal Weyl semimetals, where Weyl nodes are well‐isolated at the Fermi level. The approach is exemplified in the low‐symmetry material Cu2SnSe3, which exhibits tunable topological phases, current‐induced orbital magnetization, and a strong circular photogalvanic effect, making it a promising ...
Darius‐Alexandru Deaconu, Varun Shah, Rodion Vladimirovich Belosludov, Mohammad Saeed Bahramy   +3 more
wiley   +1 more source

Optimizing the design of intelligent reflecting surfaces with graphene for maximum wireless power transfer in Internet of Things communications

ETRI Journal
To meet the growing demand for higher data speeds and denser network cov-erage, intelligent reflecting surfaces (IRS) have gained considerable attentionowing to their ability to control electromagnetic waves with accurate beam ori-entation.
Bhupendra Sharma, Anirudh Agarwal, Deepak Mishra, Soumitra Debnath, Santosh Shah   +4 more
doaj   +1 more source

Review: Probing of the Unoccupied Electronic States in Solids by Inverse Photoemission Spectroscopy

Hittite Journal of Science and Engineering, 2018
This paper reviews the probability of probing the unoccupied electronic states in solids by inverse photoemission spectroscopy IPES . IPES is a surface science technique to analysis the unoccupied electronic states above the Fermi level.
Orhan Zeybek
doaj  

Landau Level Crossings and Extended-State Mapping in Magnetic Two-dimensional Electron Gases

, 2001
We present longitudinal and Hall magneto-resistance measurements of a ``magnetic'' two-dimensional electron gas (2DEG) formed in modulation-doped Zn$_{1-x-y}$Cd$_{x}$Mn$_{y}$Se quantum wells.
A. B. Oparin, A. G. Petukhov, D. D. Awschalom, D. D. Awschalom, D. E. Khmel’nitskii, D. G. Polykov, E. Abrahams, F. D. M. Haldane, F. Evers, H. P. Wei, H. W. Jiang, I. Glozman, I. P. Smorchkova, I. P. Smorchkova, J. A. Gaj, J. G. E. Harris, J. G. E. Harris, J. Jaroszynski, M. Furlan, M. Hayne, M. P. Lilly, N. R. Cooper, N. Samarth, R. B. Laughlin, R. Knobel, R. Knobel, S. A. Crooker, S. D. Sarma, S. J. Papadakis, S. L. Sondhi, S. V. Kravchenko, T. Ando, U. Zeitler, X. Lee   +33 more
core   +1 more source

Modulating Electrochemical CO2 Reduction Pathways via Interfacial Electric Field

Advanced Functional Materials, EarlyView.
Engineering interfacial electric fields in Cu/ITO electrodes enables precise control of CO2 reduction pathways. Charge transfer from Cu to ITO generates positively charged Cu species that steer selectivity from ethylene toward methane. This work demonstrates how interfacial electric‐field modulation can direct reaction intermediates and transform ...
Mahdi Salehi, Zhengyuan Gao, Sai Phani Kumar Vangala, Amirhossein Farzi, Hamed Heidarpour, Morgan McKee, Nikolay Kornienko, Ali Seifitokaldani   +7 more
wiley   +1 more source

Large Anomalous and Topological Hall Effect and Nernst Effect in a Dirac Kagome Magnet Fe3Ge

Advanced Functional Materials, EarlyView.
Fe3Ge, a Kagome‐lattice magnet, exhibits remarkable anomalous Hall and Nernst effects, with transverse thermoelectric conductivity surpassing or comaprable to some well‐known ferromagnets. First‐principles calculations attribute these to Berry curvature from massive Dirac gaps. Additionally, topological Hall and Nernst signals emerge from field‐induced
Chunqiang Xu, Shuvankar Gupta, Hengxin Tan, Hyeonhu Bae, Olajumoke Oluwatobiloba Emmanuel, Mingyu Xu, Yan Wu, Xiaofeng Xu, Pengpeng Zhang, Weiwei Xie, Binghai Yan, Xianglin Ke   +11 more
wiley   +1 more source

Hopping conductivity in lithium-iron spinel doped with La,Y

Фізика і хімія твердого тіла
The temperature-frequency dependences of the electrical characteristics of Li2Fe2,5-xMexO4 (Ме=La;Y, x=0;0.01;0.03;0.05) spinels synthesized by the «sol-gel» autocombustion technology  were obtained by the method of impedance spectroscopy in the ...
A.V. Vakalyuk, V.M. Vakalyuk, O.P. Pakhovskyi, I.M. Hasiuk   +3 more
doaj   +1 more source

Isolated zeros destroy Fermi surface in holographic models with a lattice

Journal of High Energy Physics, 2020
We study the fermionic spectral density in a strongly correlated quantum system described by a gravity dual. In the presence of periodically modulated chemical potential, which models the effect of the ionic lattice, we explore the shapes of the ...
Floris Balm, Alexander Krikun, Aurelio Romero-Bermúdez, Koenraad Schalm, Jan Zaanen   +4 more
doaj   +1 more source

Coherent quasi-particles-to-incoherent hole-carriers crossover in underdoped cuprates

, 2009
In underdoped cuprates, only a portion of the Fermi surface survives as Fermi arcs due to pseudogap opening. In hole-doped La$_{2}$CuO$_4$, we have deduced the "coherence temperature" $T_{coh}$ of quasi-particles on the Fermi arc above which the ...
A. Fujimori, A. Fujimori, H. Eisaki, K. Tanaka, K. Yamada, M. Hashimoto, M. L. Tacon, M. Okusawa, M. Tinkham, S. Uchida, S. Wakimoto, T. Kakeshita, T. Yoshida, U. Mizutani   +13 more
core   +1 more source