Results 41 to 50 of about 1,125,951 (330)

General Scattering Mechanism and Transport in Graphene

, 2011
Using quasi-time dependent semi-classical transport theory in RTA, we obtained coupled current equations in the presence of time varying field and based on general scattering mechanism $\tau \propto \mathcal{E}^{\beta}$.
Abukari, S. S., Mensah, S. Y., Rabiu, M.
core   +1 more source

Emergent ferromagnetism near three-quarters filling in twisted bilayer graphene [PDF]

Science, 2019
Twisted bilayer graphene goes magnetic When two layers of graphene in a bilayer are twisted with respect to each other by just the right, “magic,” angle, the electrons in the system become strongly correlated. As the electronic density is tuned by gating,
Aaron L. Sharpe, E. Fox, A. Barnard, J. Finney, Kenji Watanabe, T. Taniguchi, M. Kastner, D. Goldhaber-Gordon   +7 more
semanticscholar   +1 more source

Symmetry classification of energy bands in graphene and silicene

, 2012
We present the results of the symmetry classification of the electron energy bands in graphene and silicene using group theory algebra and the tight--binding approximation.
Kogan, E.
core   +1 more source

Morphology and surface chemistry engineering toward pH-universal catalysts for hydrogen evolution at high current density

Nature Communications, 2019
Hydrogen production from water provides one avenue toward harnessing renewable energy, although large-scale implementation remains a challenge. Here, authors explore roles of morphology and surface chemistry, and develop efficient catalysts for hydrogen ...
Yuting Luo, Lei Tang, Usman Khan, Qiangmin Yu, Hui-Ming Cheng, Xiaolong Zou, Bilu Liu   +6 more
doaj   +1 more source

High-throughput production of cheap mineral-based two-dimensional electrocatalysts for high-current-density hydrogen evolution

Nature Communications, 2020
The large-scale implementation of electrochemical technologies will require the high-throughput production of high-performance, inexpensive catalysts.
Chi Zhang, Yuting Luo, Junyang Tan, Qiangmin Yu, Fengning Yang, Zhiyuan Zhang, Liusi Yang, Hui-Ming Cheng, Bilu Liu   +8 more
doaj   +1 more source

Control and Characterization of Individual Grains and Grain Boundaries in Graphene Grown by Chemical Vapor Deposition [PDF]

, 2011
The strong interest in graphene has motivated the scalable production of high quality graphene and graphene devices. Since large-scale graphene films synthesized to date are typically polycrystalline, it is important to characterize and control grain ...
A Reina, AC Ferrari, AC Ferrari, AH Castro Neto, AK Geim, AK Geim, C Gackenheimer, CK Gan, CO Girit, CWJ Beenakker, D Eom, Deepak Pandey, Dongguang Wei, E McCann, Eric A. Stach, FV Tikhonenko, GM Rutter, Helin Cao, HL Cao, J Coraux, JD Plummer, Jifa Tian, Jiming Bao, K Kim, KS Kim, KV Emtsev, L Gao, LM Malard, Luis A. Jauregui, M Vanin, M Yamamoto, MY Huang, Nathan P. Guisinger, OV Yazyev, P Nemes-Incze, Peng Peng, PY Huang, Qingkai Yu, QK Yu, R Grantab, Robert Colby, S Bae, S Bhaviripudi, S Lee, S Neubeck, S Okada, Shin-Shem Pei, SV Morozov, T Nakajima, Ting Fung Chung, TMG Mohiuddin, W Wu, WA de Heer, Wei Wu, X Li, XS Li, XS Li, XS Li, XT Jia, Y Liu, Yong P. Chen, YW Son, Zhihong Liu, Zhihua Su   +63 more
core   +3 more sources

Energy band-gap engineering of graphene nanoribbons. [PDF]

Physical Review Letters, 2007
We investigate electronic transport in lithographically patterned graphene ribbon structures where the lateral confinement of charge carriers creates an energy gap near the charge neutrality point.
Melinda Y. Han, B. Ozyilmaz, Yuanbo Zhang, P. Kim   +3 more
semanticscholar   +1 more source

Conformal hexagonal boron nitride encapsulation of graphene-skinned glass fiber fabric for enhanced electrical stability

Nature Communications
Encapsulation is crucial for protecting graphene devices, but traditional whole-package encapsulations usually add bulky structures and reduce their flexibility.
Xiaomin Yang, Yuyao Yang, Shuting Cheng, Hao Yuan, Xuzhao Gai, Wenjuan Li, Fushun Liang, Fan Yang, Kangyi Zheng, Longfei Liu, Wenjing Jiang, Qingxu Su, Xinyu Mao, Jingnan Wang, Yuejie Zhao, Enshan Liu, Zhongfan Liu, Yue Qi   +17 more
doaj   +1 more source

Graphene on graphene antidot lattices: Electronic and transport properties [PDF]

, 2015
Graphene bilayer systems are known to exhibit a band gap when the layer symmetry is broken, by applying a perpendicular electric field. The resulting band structure resembles that of a conventional semiconductor with a parabolic dispersion.
Gregersen, Søren Schou, Jauho, Antti-Pekka, Pedersen, Jesper Goor, Power, Stephen R.   +3 more
core   +3 more sources

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur, Faruk Kaya, Bora Derin, Mustafa Lütfi Öveçoğlu, Ju Li, Duygu Ağaoğulları   +5 more
wiley   +1 more source