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Buckling induced by viscous flow changes the shape of sheet-like nanomaterial particles suspended in liquids. This instability at the particle scale affects collective behavior of suspension flows and has many technological and biological…

Fluid Dynamics · Physics 2023-03-10 Hugo Perrin , Heng Li , Lorenzo Botto

Degradation in performances of air conditioners and refrigerators is caused by a frost formation and adhesion on the surface. In the present study, by means of the classical molecular dynamics simulation, we investigate how and how much the…

Mesoscale and Nanoscale Physics · Physics 2021-04-14 Yoshitaka Ueki , Satoshi Matsuo , Masahiko Shibahara

It is shown that in nanoporous titanium dioxide films, sensitivity to atmospheric hydrogen exposure and electroforming can coexist and are interdependent. The devices work as conventional hydrogen sensors below a threshold electric field…

Materials Science · Physics 2015-05-06 M. Strungaru , M. Cerchez , S. Herbertz , T. Heinzel , M. El Achhab , K. Schierbaum

Optical microscopy and multi-particle tracking are used to investigate the cross-correlated diffusion of quasi two-dimensional (2D) colloidal particles near an oil-water interface. It is shown that the effect of the interface on correlated…

Soft Condensed Matter · Physics 2015-06-15 Wei Zhang , Song Chen , Na Li , Jiazheng Zhang , Wei Chen

Protons at the water/vapor interface are relevant for atmospheric and environmental processes, yet to characterize their surface affinity on the quantitative level is still challenging. Here we utilize phase-sensitive sum-frequency…

Chemical Physics · Physics 2019-08-27 Kuo-Yang Chiang , Laetitia Dalstein , Yu-Chieh Wen

Thermodynamics tells us to expect underwater contact between two hydrophobic surfaces to result in stronger adhesion compared to two hydrophilic surfaces. However, presence of water changes not only energetics, but also the dynamic process…

Soft Condensed Matter · Physics 2022-11-22 Mengyue Sun1 , Nityanshu Kumar1 , Ali Dhinojwala , Hunter King

We show that a small conducting object, such as a nanosphere or a nanoring, embedded into or placed in the vicinity of the two-dimensional electron liquid (2DEL) and subjected to a circularly polarized electromagnetic radiation induces…

Mesoscale and Nanoscale Physics · Physics 2020-08-12 S. O. Potashin , V. Yu. Kachorovskii , M. S. Shur

We investigated the effect of dissolved hydrogen on the microstructure evolution of nanocrystalline silicon. Through molecular dynamics simulations we characterize the local and overall structural features of several hydrogenated samples by…

Mesoscale and Nanoscale Physics · Physics 2010-11-15 Giorgia Fugallo , Alessandro Mattoni , Luciano Colombo

The discovery of 2D materials opens up unprecedented opportunities to design new materials with specified properties. In many cases, the design guiding principle is based on one or another proximity effect, i.e. the nanoscale-penetration of…

Superconductivity · Physics 2024-10-22 G. A. Bobkov , K. A. Bokai , M. M. Otrokov , A. M. Bobkov , I. V. Bobkova

We investigate the optical properties of hydrogen as it undergoes a transition from the insulating molecular to the metallic atomic phase, when heated by a pulsed laser at megabar pressures in a diamond anvil cell. Most current experiments…

Materials Science · Physics 2016-04-20 N. Van den Broeck , F. Brosens , J. Tempere , I. F. Silvera

Interfacial thermal transport is a critical bottleneck in nanoscale systems, where heat dissipation and energy efficiency are strongly modulated by molecular ordering at solid-liquid boundaries. Here, using atomistic simulations of…

Mesoscale and Nanoscale Physics · Physics 2026-01-14 Viktor Mandrolko , Mykola Isaiev

The growth and exfoliation of two-dimensional (2D) materials have led to the creation of edges and novel interfacial states at the juncture between crystals with different composition or phases. These hybrid heterostructures (HSs) can be…

Mesoscale and Nanoscale Physics · Physics 2019-04-02 Oscar Ávalos-Ovando , Diego Mastrogiuseppe , Sergio E. Ulloa

Supercooled liquids exhibit spatial heterogeneity in the dynamics of their fluctuating atomic arrangements. The length and time scales of the heterogeneous dynamics are central to the glass transition and influence nucleation and growth of…

Materials Science · Physics 2018-05-09 Pei Zhang , Jason J. Maldonis , Ze Liu , Jan Schroers , Paul M. Voyles

Superconducting spin valves based on the superconductor/ferromagnet (S/F) proximity effect are considered to be a key element in the emerging field of superconducting spintronics. Here, we demonstrate the crucial role of the morphology of…

Superconductivity · Physics 2016-03-25 P. V. Leksin , A. A. Kamashev , J. Schumann , V. Kataev , J. Thomas , B. Büchner , I. A. Garifullin

We unveil the role of substrate wettability on the reversal in the sign of the interfacial charge distribution in a nanochannel in presence of multivalent ions. In sharp contrast to the prevailing notion that hydrophobic interactions may…

Fluid Dynamics · Physics 2015-06-30 Vaseem Akram Shaik , Aditya Bandopadhyay , Syed Sahil Hossain , Suman Chakraborty

The current-voltage characteristics (IVC) of $S-c-N$ point contacts of superconductors with a small coherence length ${{\xi}_{0}}$ reveal steps with discrete values of the differential resistance. This peculiarity is associated with a…

The spin-density wave (SDW) state in thin chromium films is well known to be strongly affected by proximity effects from neighboring layers. To date the main attention has been given to effects arising from exchange interactions at…

Materials Science · Physics 2009-11-10 E. Kravtsov , R. Brucas , B. Hjorvarsson , A. Hoser , A. Nefedov , F. Radu , A. Remhof , S. Wilkins

Hydrogen arranges at dislocations in palladium to form nanoscale hydrides, changing the vibrational spectra. An ab initio hydrogen potential energy model versus Pd neighbor distances allows us to predict the vibrational excitations for H…

Materials Science · Physics 2011-06-01 Dallas R. Trinkle , Hyunsu Ju , Brent J. Heuser , Terrence J. Udovic

We calculate ground-state energies and density distributions of Hubbard superlattices characterized by periodic modulations of the on-site interaction and the on-site potential. Both density-matrix renormalization group and…

Strongly Correlated Electrons · Physics 2016-08-31 M. F. Silva , N. A. Lima , A. L. Malvezzi , K. Capelle

Contact freezing is a mode of atmospheric ice nucleation in which a collision between a dry ice nucleating particle (INP) and a water droplet results in considerably faster heterogeneous nucleation. The molecular mechanism of such…

Soft Condensed Matter · Physics 2021-01-29 Sarwar Hussain , Amir Haji-Akbari