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Ekaterina Khestanova
Researcher at University of Manchester
Publications - 33
Citations - 2197
Ekaterina Khestanova is an academic researcher from University of Manchester. The author has contributed to research in topics: Polariton & Exciton. The author has an hindex of 13, co-authored 28 publications receiving 1563 citations. Previous affiliations of Ekaterina Khestanova include Moscow State University & Institute of Cost and Management Accountants of Bangladesh.
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Journal ArticleDOI
Negative local resistance caused by viscous electron backflow in graphene
Denis A. Bandurin,Iacopo Torre,R. Krishna Kumar,R. Krishna Kumar,M. Ben Shalom,Andrea Tomadin,Alessandro Principi,Gregory Auton,Ekaterina Khestanova,Kostya S. Novoselov,Irina V. Grigorieva,Leonid Ponomarenko,Leonid Ponomarenko,Andre K. Geim,Marco Polini +14 more
TL;DR: Graphene hosts a unique electron system in which electron-phonon scattering is extremely weak but electron-electron collisions are sufficiently frequent to provide local equilibrium above the temperature of liquid nitrogen, under which electrons can behave as a viscous liquid and exhibit hydrodynamic phenomena similar to classical liquids.
Journal ArticleDOI
Quality Heterostructures from Two-Dimensional Crystals Unstable in Air by Their Assembly in Inert Atmosphere
Yang Cao,Artem Mishchenko,Geliang Yu,Ekaterina Khestanova,A. P. Rooney,Eric Prestat,Andrey V. Kretinin,Peter Blake,Moshe Ben Shalom,Colin R. Woods,J. Chapman,Geetha Balakrishnan,Irina V. Grigorieva,Konstantin S. Novoselov,Benjamin A. Piot,Marek Potemski,Kenji Watanabe,T. Taniguchi,Sarah J. Haigh,Andre K. Geim,Roman V. Gorbachev +20 more
TL;DR: A remedial approach based on cleavage, transfer, alignment, and encapsulation of air-sensitive crystals, all inside a controlled inert atmosphere, which offers a venue to significantly expand the range of experimentally accessible two-dimensional crystals and their heterostructures.
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Universal shape and pressure inside bubbles appearing in van der Waals heterostructures.
Ekaterina Khestanova,Francisco Guinea,Francisco Guinea,Laura Fumagalli,Andre K. Geim,Irina V. Grigorieva +5 more
TL;DR: Using atomic force microscopy, a variety of bubbles formed by monolayers of graphene, boron nitride and MoS2 are analysed and their shapes are found to exhibit universal scaling, in agreement with the analysis based on the theory of elasticity of membranes.
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Nonlinear polaritons in a monolayer semiconductor coupled to optical bound states in the continuum.
Vasily Kravtsov,Ekaterina Khestanova,F. A. Benimetskiy,Tatiana Ivanova,Anton Samusev,Ivan S. Sinev,Dmitry Pidgayko,Alexey M. Mozharov,Ivan Mukhin,Ivan Mukhin,Maksim S. Lozhkin,Yuri V. Kapitonov,Andrey S. Brichkin,V. D. Kulakovskii,Ivan A. Shelykh,Ivan A. Shelykh,Alexander I. Tartakovskii,Paul M. Walker,M. S. Skolnick,M. S. Skolnick,D. N. Krizhanovskii,D. N. Krizhanovskii,Ivan Iorsh +22 more
TL;DR: In this article, the optical bound states in the continuum (BICs) provide a way to engineer very narrow resonances in photonic crystals and the extended interaction time in these systems is particularly promising for the enhancement of nonlinear optical processes and the development of the next generation of active optical devices.
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High-temperature quantum oscillations caused by recurring Bloch states in graphene superlattices
R. Krishna Kumar,R. Krishna Kumar,Xi Chen,Gregory Auton,Artem Mishchenko,Denis A. Bandurin,S.V. Morozov,S.V. Morozov,Yang Cao,Ekaterina Khestanova,M. Ben Shalom,Andrey V. Kretinin,Kostya S. Novoselov,Laurence Eaves,Laurence Eaves,Irina V. Grigorieva,Leonid Ponomarenko,Vladimir I. Fal'ko,Andre K. Geim +18 more
TL;DR: It is shown that graphene superlattices support a different type of quantum oscillation that does not rely on Landau quantization, and this work hints at unexplored physics in Hofstadter butterfly systems at high temperatures.