Search Results - "Geim, A. K."

Graphene: Status and Prospects by Geim, A.K

“…Graphene is a wonder material with many superlatives to its name. It is the thinnest known material in the universe and the strongest ever measured. Its charge…”
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Van der Waals heterostructures by Geim, A. K., Grigorieva, I. V.

“…Fabrication techniques developed for graphene research allow the disassembly of many layered crystals (so-called van der Waals materials) into individual…”
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Superballistic flow of viscous electron fluid through graphene constrictions by Krishna Kumar, R., Bandurin, D. A., Pellegrino, F. M. D., Cao, Y., Principi, A., Guo, H., Auton, G. H., Ben Shalom, M., Ponomarenko, L. A., Falkovich, G., Watanabe, K., Taniguchi, T., Grigorieva, I. V., Levitov, L. S., Polini, M., Geim, A. K.

“…Graphene systems are clean platforms for studying electron–electron (e–e) collisions. Electron transport in graphene constrictions is now found to behave…”
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Anomalously low dielectric constant of confined water by Fumagalli, L, Esfandiar, A, Fabregas, R, Hu, S, Ares, P, Janardanan, A, Yang, Q, Radha, B, Taniguchi, T, Watanabe, K, Gomila, G, Novoselov, K S, Geim, A K

“…The dielectric constant ε of interfacial water has been predicted to be smaller than that of bulk water (ε ≈ 80) because the rotational freedom of water…”
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Energy gaps and a zero-field quantum Hall effect in graphene by strain engineering by Guinea, F, Geim, A. K, Katsnelson, M. I

“…Among many remarkable qualities of graphene, its electronic properties attract particular interest owing to the chiral character of the charge carriers, which…”
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Molecular streaming and its voltage control in ångström-scale channels by Mouterde, T., Keerthi, A., Poggioli, A. R., Dar, S. A., Siria, A., Geim, A. K., Bocquet, L., Radha, B.

“…Over the past decade, the ability to reduce the dimensions of fluidic devices to the nanometre scale (by using nanotubes 1 – 5 or nanopores 6 – 11 , for…”
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Highly efficient and selective extraction of gold by reduced graphene oxide by Li, Fei, Zhu, Jiuyi, Sun, Pengzhan, Zhang, Mingrui, Li, Zhenqing, Xu, Dingxin, Gong, Xinyu, Zou, Xiaolong, Geim, A. K., Su, Yang, Cheng, Hui-Ming

“…Materials capable of extracting gold from complex sources, especially electronic waste (e-waste), are needed for gold resource sustainability and effective…”
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The rise of graphene by Geim, A. K, Novoselov, K. S

“…Graphene is a rapidly rising star on the horizon of materials science and condensed-matter physics. This strictly two-dimensional material exhibits…”
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Unimpeded Permeation of Water Through Helium-Leak-Tight Graphene-Based Membranes by Nair, R. R., Wu, H. A., Jayaram, P. N., Grigorieva, I. V., Geim, A. K.

“…Permeation through nanometer pores is important in the design of materials for filtration and separation techniques and because of unusual fundamental behavior…”
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Universal shape and pressure inside bubbles appearing in van der Waals heterostructures by Khestanova, E., Guinea, F., Fumagalli, L., Geim, A. K., Grigorieva, I. V.

“…Trapped substances between a two-dimensional (2D) crystal and an atomically flat substrate lead to the formation of bubbles. Their size, shape and internal…”
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Micrometer-Scale Ballistic Transport in Encapsulated Graphene at Room Temperature by Mayorov, Alexander S, Gorbachev, Roman V, Morozov, Sergey V, Britnell, Liam, Jalil, Rashid, Ponomarenko, Leonid A, Blake, Peter, Novoselov, Kostya S, Watanabe, Kenji, Taniguchi, Takashi, Geim, A. K

“…Devices made from graphene encapsulated in hexagonal boron-nitride exhibit pronounced negative bend resistance and an anomalous Hall effect, which are a direct…”
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Size effect in ion transport through angstrom-scale slits by Esfandiar, A., Radha, B., Wang, F. C., Yang, Q., Hu, S., Garaj, S., Nair, R. R., Geim, A. K., Gopinadhan, K.

“…In the field of nanofluidics, it has been an ultimate but seemingly distant goal to controllably fabricate capillaries with dimensions approaching the size of…”
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Charge-polarized interfacial superlattices in marginally twisted hexagonal boron nitride by Woods, C. R., Ares, P., Nevison-Andrews, H., Holwill, M. J., Fabregas, R., Guinea, F., Geim, A. K., Novoselov, K. S., Walet, N. R., Fumagalli, L.

“…When two-dimensional crystals are brought into close proximity, their interaction results in reconstruction of electronic spectrum and crystal structure. Such…”
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Complete steric exclusion of ions and proton transport through confined monolayer water by Gopinadhan, K, Hu, S, Esfandiar, A, Lozada-Hidalgo, M, Wang, F C, Yang, Q, Tyurnina, A V, Keerthi, A, Radha, B, Geim, A K

“…It has long been an aspirational goal to create artificial structures that allow fast permeation of water but reject even the smallest hydrated ions,…”
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Unraveling the 3D Atomic Structure of a Suspended Graphene/hBN van der Waals Heterostructure by Argentero, Giacomo, Mittelberger, Andreas, Reza Ahmadpour Monazam, Mohammad, Cao, Yang, Pennycook, Timothy J, Mangler, Clemens, Kramberger, Christian, Kotakoski, Jani, Geim, A. K, Meyer, Jannik C

“…In this work we demonstrate that a free-standing van der Waals heterostructure, usually regarded as a flat object, can exhibit an intrinsic buckled atomic…”
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Indirect excitons in van der Waals heterostructures at room temperature by Calman, E. V., Fogler, M. M., Butov, L. V., Hu, S., Mishchenko, A., Geim, A. K.

“…Indirect excitons (IXs) are explored both for studying quantum Bose gases in semiconductor materials and for the development of excitonic devices. IXs were…”
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Chiral tunnelling and the Klein paradox in graphene by Katsnelson, M. I, Geim, A. K, Novoselov, K. S

“…The so-called Klein paradox--unimpeded penetration of relativistic particles through high and wide potential barriers--is one of the most exotic and…”
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Molecular transport through capillaries made with atomic-scale precision by Radha, B., Esfandiar, A., Wang, F. C., Rooney, A. P., Gopinadhan, K., Keerthi, A., Mishchenko, A., Janardanan, A., Blake, P., Fumagalli, L., Lozada-Hidalgo, M., Garaj, S., Haigh, S. J., Grigorieva, I. V., Wu, H. A., Geim, A. K.

“…Nanometre-scale graphitic capillaries with atomically flat walls are engineered and studied, revealing unexpectedly fast transport of liquid water through…”
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Measuring Hall viscosity of graphene's electron fluid by Berdyugin, A I, Xu, S G, Pellegrino, F M D, Krishna Kumar, R, Principi, A, Torre, I, Ben Shalom, M, Taniguchi, T, Watanabe, K, Grigorieva, I V, Polini, M, Geim, A K, Bandurin, D A

“…An electrical conductor subjected to a magnetic field exhibits the Hall effect in the presence of current flow. Here we report a qualitative deviation from the…”
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Precise and Ultrafast Molecular Sieving Through Graphene Oxide Membranes by Joshi, R. K., Carbone, P., Wang, F. C., Kravets, V. G., Su, Y., Grigorieva, I. V., Wu, H. A., Geim, A. K., Nair, R. R.

“…Graphene-based materials can have well-defined nanometer pores and can exhibit low frictional water flow inside them, making their properties of interest for…”
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