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The rheology of nanoparticle suspensions for nanoparticles of various shapes with equal mass is studied using molecular dynamics simulations. The equilibrium structure and the response to imposed shear are analyzed for suspensions of…

Soft Condensed Matter · Physics 2015-05-18 David R. Heine , Matt K. Petersen , Gary S. Grest

Magnetite ($Fe_3O_4$) nanoparticles are crucial for biomedical applications, including magnetic hyperthermia, targeted drug delivery, and MRI contrast enhancement, due to their biocompatibility and unique physicochemical properties. Here,…

Surface effect responsible for some size-dependent characteristics can become distinctly important for piezoelectric nanomaterials with inherent large surface-to-volume ratio. In this paper, we investigate the surface effect on the free…

Soft Condensed Matter · Physics 2021-07-29 Bin Wu , Weiqiu Chen , Chuanzeng Zhang

The quantum wave nature of matter is a cornerstone of modern physics, which has been demonstrated for a wide range of fundamental and composite particles. While diffraction at nanomechanical masks is usually regarded to be independent of…

Ionic Current Rectification (ICR) can appear in nanopores, causing a diode-like behavior that originates from different efficiency of ion transport through the pore channel with respect to the applied voltage bias polarity. This effect is…

Optical properties of nanoparticles attract continuous attention owing to their high fundamental and applied importance across many disciplines. Recently emerged field of all-dielectric nanophotonics employs optically induced electric and…

Optics · Physics 2018-10-30 Roman E. Noskov , Ivan I. Shishkin , Hani Barhom , Pavel Ginzburg

It is suggested that a moving canonical particle interacts with a vacuum regarded as a "soft" cellular space. The interaction results into the emergence of elementary excitations of space - inertons - surrounding the particle. It is assumed…

Quantum Physics · Physics 2007-05-23 Volodymyr Krasnoholovets

We investigate numerically different techniques to extract scattering amplitudes from the Euclidean Lattice {\phi}4 theory with two fields, having different masses. We present an exploratory study of the recently proposed method by Bruno…

High Energy Physics - Lattice · Physics 2021-12-03 Marco Garofalo , Fernando Romero-López , Akaki Rusetsky , Carsten Urbach

This is the first report on the critical nature of nanolattice formability of different particle size (~4-10nm) of monodispersed nickel nanoparticles. They exhibit strikingly hexagonal close-packed (hcp) nanolattices without extra forces,…

Mesoscale and Nanoscale Physics · Physics 2014-06-27 Jaiveer Singh , Netram Kaurav , Niranjan Prasad Lalla , Gunadhor Singh Okram

Evidence of chirality was observed at the Fe metal center in Fe(III) spin crossover coordination salts [Fe(qsal)2][ Ni(dmit)2] and [Fe(qsal)2](TCNQ)2 from X-ray absorption spectroscopy at the Fe 2p3/2 core threshold. This indicates the…

The surface magnetic canting (SMC) of a semi-infinite film with ferromagnetic exchange interaction and competing bulk and surface anisotropies is investigated via a nonlinear mapping formulation of mean-field theory previously developed by…

Materials Science · Physics 2009-11-07 P. Betti , M. G. Pini , A. Rettori

We calculate the contribution of the Neel surface anisotropy to the effective anisotropy of magnetic nanoparticles of spherical shape cut out of a simple cubic lattice. The effective anisotropy arises because deviations of atomic…

Statistical Mechanics · Physics 2009-11-07 D. A. Garanin , H. Kachkachi

It is shown that the experimentally observed inverse linear decay of surface corrugations in Si(001) (Erlebacher et al., Phys. Rev. Lett. 84, 5800 (2000)) is due to the two dimensional nature of the surface in the experimental system. The…

Materials Science · Physics 2009-11-07 Navot Israeli , Daniel Kandel

The original version of this paper has been withdrawn by the authors and merged with the revised version of astro-ph/9702014.

Astrophysics · Physics 2008-02-03 Kaundinya S. Gopinath , Dallas C. Kennedy , James M. Gelb

Localized surface plasmon resonances (LSPRs) have recently been identified in extremely diluted electron systems obtained by doping semiconductor quantum dots. Here we investigate the role that different surface effects, namely electronic…

Optics · Physics 2015-04-29 R. Carmina Monreal , Tomasz J. Antosiewicz , S. Peter Apell

Tangential interactions between particles play a central role in suspension rheology. We show theoretically that these interactions, often attributed to contact friction, are a direct consequence of fluid flows between rough particles in…

Soft Condensed Matter · Physics 2026-03-25 Jake Minten , Bhargav Rallabandi

We have performed Raman scattering measurements on BiFeO3 nanoparticles and studied both magnetic and lattice modes. We reveal strong anomalies between 140 K and 200 K in the frequency of magnon and E(LO1), E(TO1) and A1(LO1) phonon modes.…

The zeta ($\zeta$) potential is a pivotal metric for characterizing the electric field topology within an electric double layer - an important phenomenon on phase interface. It underpins critical processes in diverse realms such as…

Mesoscale and Nanoscale Physics · Physics 2024-02-08 Shuangshuang Meng , Yu Han , Wei Zhao , Yueqiang Zhu , Chen Zhang , Xiaoqiang Feng , Ce Zhang , Duyang Zang , Guangyin Jing , Kaige Wang

An electrokinetic (zeta) potential of charged permeable porous films on solid supports generally exceeds their surface potential, which often builds up to a quite high value itself. Recent work provided a quantitative understanding of zeta…

Chemical Physics · Physics 2021-04-26 Elena F. Silkina , Naren Bag , Olga I. Vinogradova

Chirality in inorganic nanoparticles and nanostructures has gained increasing scientific interest, because of the possibility to tune their ability to interact differently with left- and right-handed circularly polarized light. In some…

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