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We present the first experimental investigation of the effect of increased isotropic pressure on the superatomic electronic structure of metal nanoclusters in the molecular state. Broad multiband absorbing [Ag44(SPhCOOH)30]4-,…

介观与纳米尺度物理 · 物理学 2018-01-12 Lui R. Terry , Christopher R. Pudney , Henkjan Gersen , Simon R. Hall

We report the experimental observation of spin-induced magnetoresistance in single-wall carbon nanotubes contacted with high-transparency ferromagnetic electrodes. In the linear regime the spin-induced magnetoresistance oscillates with gate…

介观与纳米尺度物理 · 物理学 2007-05-23 H. T. Man , I. J. W. Wever , A. F. Morpurgo

We review the theoretical description of spin-orbit scattering and electron spin resonance in carbon nanotubes. Particular emphasis is laid on the effects of electron-electron interactions. The spin-orbit coupling is derived, and the…

强关联电子 · 物理学 2012-09-27 A. De Martino , R. Egger , F. Murphy-Armando , K. Hallberg

Further development of a previously introduced method for numerically simulating magnetic spin waves is presented. Together with significant improvements in speed, the method now allows one to calculate the energy absorbed by the various…

材料科学 · 物理学 2009-11-11 K. Rivkin , J. B. Ketterson

We observe using ab initio methods that localized surface plasmon resonances in icosahedral silver nanoparticles enter the asymptotic region already between diameters of 1 and 2 nm, converging close to the classical quasistatic limit around…

The plasmonic response of nanoparticles is exploited in many subfields of science and engineering to enhance optical signals associated with probes of nanoscale and subnanoscale entities. We develop a numerical algorithm based on previous…

光学 · 物理学 2015-03-17 Paul Anton Letnes , Ingve Simonsen , D. L. Mills

Many molecular magnetic clusters, such as single-molecule magnets, are characterized by spin ground states with defined total spin S exhibiting zero-field-splittings. In this work, the spectroscopic intensities of the transitions within the…

介观与纳米尺度物理 · 物理学 2009-11-11 O. Waldmann , H. U. Güdel

Excitation of spin waves is considered in a superconducting ferromagnetic slab with the equilibrium magnetization both perpendicular and parallel to the surface. The surface impedance is calculated and its behavior near propagation…

超导电性 · 物理学 2009-11-11 V. Braude

Extending the current understanding and use of magnonics beyond conventional planar systems, we demonstrate surface localization of spin-wave ferromagnetic resonance (FMR) modes by designing complex three-dimensional nanostructures. Using…

介观与纳米尺度物理 · 物理学 2024-11-07 Mateusz Gołębiewski , Krzysztof Szulc , Maciej Krawczyk

Surface acoustic waves in multilayered nanostructures represent a critical frontier in understanding material behavior at the nanoscale, with profound implications for emerging acoustic and spintronic technologies. In this study, we…

材料科学 · 物理学 2025-04-10 A. V. Achuthan , S. Janardhanan , P. Kuswik , A. Trzaskowska

We report on the magnetic and hyperthermia properties of iron nanoparticles synthesized by organometallic chemistry. They are 5.5 nm in diameter and display a saturation magnetization close to the bulk one. Magnetic properties are dominated…

材料科学 · 物理学 2015-05-14 B. Mehdaoui , A. Meffre , L. -M. Lacroix , J. Carrey , S. Lachaize , M. Respaud , M. Gougeon , B. Chaudret

Artificial spin ice (ASI) represents a class of uniquely structured superlattices comprising geometrically arranged interacting nanomagnets. This arrangement facilitates the exploration of magnetic frustration phenomena and related spin…

介观与纳米尺度物理 · 物理学 2024-07-02 G. A. Gomez-Iriarte , D. E. Gonzalez-Chavez , R. L. Sommer , J. P. Sinnecker

We study the spin-dependent electronic excitations in alkali-metal nanoparticles. Using numerical and analytical approaches, we focus on the resonances in the response to spin-dependent dipole fields. In the spin-dipole absorption spectrum…

介观与纳米尺度物理 · 物理学 2009-09-18 Yue Yin , Paul-Antoine Hervieux , Rodolfo A. Jalabert , Giovanni Manfredi , Emmanuel Maurat , Dietmar Weinmann

Double quantum dot in the few-electron regime is achieved using local gating in an InSb nanowire. The spectrum of two-electron eigenstates is investigated using electric dipole spin resonance. Singlet-triplet level repulsion caused by…

The spin-wave dynamics in the thin CoFeB film in Damon-Eshbach geometry are studied in three cases of boundary conditions -- free boundary conditions, symmetrical surface anisotropy, and one-sided surface anisotropy. The analytical model…

介观与纳米尺度物理 · 物理学 2024-04-17 Krzysztof Szulc , Julia Kharlan , Pavlo Bondarenko , Elena V. Tartakovskaya , Maciej Krawczyk

The implementation of nuclear magnetic resonance (NMR) at the nanoscale is a major challenge, as conventional systems require relatively large ensembles of spins and limit resolution to mesoscopic scales. New approaches based on quantum…

Nearest-neighbor spin correlations are considered near the surface of a semi-infinite spin-$\frac12$ Heisenberg antiferromagnet on a simple cubic lattice. In the spin-wave approximation, the excitation spectrum of this model involves bulk…

强关联电子 · 物理学 2015-05-13 N. Voropajeva , A. Sherman

The deterministic Landau-Lifshitz-Gilbert equation has been used to investigate the nonlinear dynamics of magnetization and the specific loss power in magnetic nanoparticles with uniaxial anisotropy driven by a rotating magnetic field,…

介观与纳米尺度物理 · 物理学 2012-12-13 I. Nandori , J. Racz

We develop a general formalism for analyzing the ferromagnetic resonance characteristics of a magnetic dimer consisting of two magnetic elements (in a horizontal or vertical configuration) coupled by dipolar interaction, taking account of…

材料科学 · 物理学 2015-01-22 A. F. Franco , J. L. Déjardin , H. Kachkachi

The energy spectrum and eigenstates of single-layer black phosphorous nanoribbons in the presence of perpendicular magnetic field and in-plane transverse electric field are investigated by means of a tight-binding method and the effect of…

介观与纳米尺度物理 · 物理学 2017-10-04 Vladimir V. Arsoski , Marko M. Grujic , Nemanja A. Cukaric , Milan Z. Tadic , Francois M. Peeters