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The effect of electric field, applied on systems in the nanoscale regime has attracted a lot of research in recent times. We highlight some of the recent results in the field of single molecule electronics and then move on to focus on some…

材料科学 · 物理学 2008-10-11 S. Lakshmi , Sudipta Dutta , Swapan K. Pati

Absorption spectra of small molecular aggregates (oligomers) are considered. The dipole-dipole interaction between the monomers leads to shifts of the oligomer spectra with respect to the monomer absorption. The line-shapes of monomer as…

化学物理 · 物理学 2011-02-03 Jan Roden , Walter T. Strunz , Alexander Eisfeld

We investigate the magnetization dynamics of an ultrathin Co (1.5 nm) /Py (1.5 nm) bilayer system from femtosecond (fs) to nanosecond (ns) timescales. Magnetization dynamics in the fs timescales is characterized as a highly non-equilibrium…

The impact of dark matter-neutrino ($\nu$DM) interactions on cosmological perturbations has regained attention, spurred by indications of non-zero couplings from high-multipole cosmic microwave background data, weak lensing, and…

宇宙学与河外天体物理 · 物理学 2025-05-28 Sebastian Trojanowski , Lei Zu

We found analytical solution for the time evolution of localized electron density in a system of two coupled single-level quantum dots (QDs) connected with continuous spectrum states in the presence of Coulomb interaction. This solution…

介观与纳米尺度物理 · 物理学 2013-12-30 P. I. Arseev , N. S. Maslova , V. N. Mantsevich

Gold nanoparticle assemblies show a strong plasmonic response due to the combined effects of the individual nanoparticles' plasmon modes. Increasing the number of nanoparticles in structured assemblies leads to significant shifts in the…

光学 · 物理学 2022-07-13 Aditya K. Sahu , Satyabrata Raj

We calculate the quasiparticle properties of $\rm{MoS_2}$ monolayer at $T=0$ considering the dynamical electron-electron interaction effect within random-phase-approximation (RPA). The calculations are carried out for an electron-doped slab…

介观与纳米尺度物理 · 物理学 2020-08-27 Azadeh Faridi , Reza Asgari

Nuclei with $A>282$ have been studied in the Relativistic Mean Field approach using the force FSU Gold and a zero range pairing interaction. The Euler-Lagrange equations have been solved in the co-ordinate space. Alpha nucleus potential has…

核理论 · 物理学 2008-11-26 Madhubrata Bhattacharya , G. Gangopadhyay

Excited conduction electrons, conduction holes, and valence holes in monolayer electron-doped graphene exhibit unusual Coulomb decay rates. The deexcitation processes are studied using the screened exchange energy. They might utilize the…

介观与纳米尺度物理 · 物理学 2019-02-26 Chih-Wei Chiu , Chiun-Yan Lin , Rong-Bin Chen

The relationship between the molecular structure and the formation of the NTB phase is still at an early stage of development. This is mainly related to molecular geometry, while the correlation between the NTB phase and the electronic…

化学物理 · 物理学 2021-01-04 Katarzyna Merkel , Barbara Loska , Chris Welch , Georg H. Mehl , Antoni Kocot

In this work, we have studied the phonon properties of multi-layered graphene with the use of Molecular Dynamics (MD) simulations and the k-space Autocorrelation Sequence (k-VACS) method. We calculate the phonon dispersion curves, densities…

We study the plasmonic properties of arrays of atomic chains which comprise noble (Cu, Ag, and Au) and transition (Pd, Pt) metal atoms using time-dependent density-functional theory. We show that the response to the electromagnetic…

介观与纳米尺度物理 · 物理学 2018-10-02 Kevin Conley , Neha Nayyar , Tuomas P. Rossi , Mikael Kuisma , Volodymyr Turkowski , Martti Puska , Talat S. Rahman

Having already achieved near-unity quantum yields, with promising properties for light-emitting diode, lasing, and charge separation applications, colloidal core/shell quantum dots have great technological potential. The shell thickness and…

材料科学 · 物理学 2020-05-08 John P. Philbin , Eran Rabani

Fr atom can be successively used to search for the atomic permanent electric dipole moment (EDM) [Hyperfine Interactions 236, 53 (2015); Journal of Physics: Conference Series 691, 012017 (2016)]. It can be induced by the permanent electron…

原子物理 · 物理学 2017-02-17 L. V. Skripnikov , D. E. Maison , N. S. Mosyagin

Electrostatic interactions provide a convenient way to modulate interactions between nanoparticles, colloids, and biomolecules because they can be adjusted by the solution pH or salt concentration. While the presence of salt provides an…

软凝聚态物质 · 物理学 2019-09-04 Sawyer S. Hopkins , Amitabha Chakrabarti , Jeremy D. Schmit

Intrinsically disordered proteins (IDPs) abound in cellular regulation. Their interactions are often transitory and highly sensitive to salt concentration and posttranslational modifications. However, little is known about the effect of…

生物物理 · 物理学 2020-11-04 Franziska Zosel , Andrea Soranno , Daniel Nettels , Benjamin Schuler

Relativistic mean field calculations have been performed to obtain nuclear density pro- file. Microscopic interactions have been folded with the calculated densities of finite nuclei to obtain a semi-microscopic potential. Life time values…

核理论 · 物理学 2012-01-04 G. Gangopadhyay

We investigated the influence of the photonic mode density (PMD) on the triplet dynamics of individual chromophores on a dielectric interface by comparing their response in the presence and absence of a nearby gold film. Lifetimes of the…

光学 · 物理学 2009-11-13 F. D. Stefani , K. Vasilev , N. Bocchio , F. Gaul , A. Pomozzi , M. Kreiter

While obtaining theoretical predictions for dissipation during sliding motion is a difficult task, one regime that allows for analytical results is the so-called noncontact regime, where a probe is weakly interacting with the surface over…

材料科学 · 物理学 2021-12-08 Miru Lee , Richard L. C. Vink , Cynthia A. Volkert , Matthias Krüger

Exchange interaction strongly influences the long-range behaviour of localised electron orbitals. It violates the oscillation theorem (creates extra nodes) and produces a power-law decay instead of the usual exponential decrease at large…

材料科学 · 物理学 2012-12-12 V. V. Flambaum