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We report on a combined study of the de Haas-van Alphen effect and angle resolved photoemission spectroscopy on single crystals of the metallic delafossite PdRhO$_2$ rounded off by \textit{ab initio} band structure calculations. A high…

The interplay of bulk and boundary scattering is explored in a regime where quantum size effects modify mesoscopic transport in a degenerate Fermi liquid film of $^3$He on a rough surface. We discuss mass transport and the momentum…

介观与纳米尺度物理 · 物理学 2019-11-20 Priya Sharma , Antonio Corcoles , R. G. Bennett , Jeevak M. Parpia , Brian Cowan , John Saunders

This paper is devoted to the investigation of electron sound -- oscillations of the electron distribution function coupled with elastic deformation and propagating with the Fermi velocity. The amplitude-phase relations characterizing the…

其他凝聚态物理 · 物理学 2014-02-10 Yu. A. Avramenko , E. V. Bezuglyi , N. G. Burma , V. D. Fil'

The role of "Fermi arc" surface-quasiparticle states in "topological metals" (where some Fermi surface sheets have non-zero Chern number) is examined. They act as "Fermi-level plumbing" conduits that transfer quasiparticles among groups of…

强关联电子 · 物理学 2014-01-03 F. D. M. Haldane

The image fractal analysis is actively used in all science branches. In particular in materials science the fractal analysis is applied to study microstructure of deformed metals because its structure can be interpreted as the fractal…

材料科学 · 物理学 2012-05-01 Anatoliy Zavdoveev , Yan Beygelzimer , Victor Varyukhin , Boris Efros

The shape of the Fermi surface, and the cyclotron effective mass of the kagome magnet GdV6Sn6 charge carriers are investigated using de Haas van Alphen (dHvA) oscillations measurements and electronic band structure calculations. The…

We explore constraints on various new physics resonances from four top-quark production based on current experimental data. Both light and heavy resonances are studied in the work. A comparison of full width effect and narrow width…

高能物理 - 唯象学 · 物理学 2021-09-22 Qing-Hong Cao , Jun-Ning Fu , Yandong Liu , Xiao-Hu Wang , Rui Zhang

We study a set of many-body wave-functions of Fermions that are naturally written using momentum space basis and allow for quantum superposition of Fermion occupancy, $\{n_{\bf k}\}$. This {enables} us to capture the fluctuations of the…

强关联电子 · 物理学 2024-08-05 Ankush Chaubey , Harsh Nigam , Subhro Bhattacharjee , K. Sengupta

A precursor effect on the Fermi surface in the two-dimensional Hubbard model at finite temperatures near the antiferromagnetic instability is studied using three different itinerant approaches: the second order perturbation theory, the…

强关联电子 · 物理学 2009-09-25 Taiichiro Saikawa , Alvaro Ferraz

Finite-size and surface effects in fine particle systems are investigated by Monte Carlo simulation of a model of a $\gamma$-Fe$_2$O$_3$ (maghemite) single particle. Periodic boundary conditions have been used to simulate the bulk…

材料科学 · 物理学 2007-05-23 Oscar Iglesias , Amilcar Labarta

The absorption of light by a metal disturbs the electron distribution around the Fermi surface. Here, we calculate the phonon dispersion relations of free-electron-like metal, bcc sodium, with a stepwise electron distribution function by…

材料科学 · 物理学 2020-05-20 Shota Ono , Daigo Kobayashi

In the present work we theoretically analyze the effect of the Fermi surface local geometry on quantum oscillations in the velocity of an acoustic wave travelling in metal across a strong magnetic field. We show that local flattenings of…

材料科学 · 物理学 2007-05-23 Natalya A. Zimbovskaya

A series of kinetic phenomena in metallic multilayers has been considered. The kinetic properties of multilayers differ essentially from the properties of both massive metals and thin films. One of the main reasons of that is the influence…

统计力学 · 物理学 2010-06-09 L. V. Dekhtyaruk , Yu. A. Kolesnichenko , V. G. Peschansky

We consider the behavior of classical and quantum oscillations in metals with complex Fermi surfaces near the directions of $\, {\bf B} \, $ corresponding to changes in the topological structure of the dynamical system describing the…

材料科学 · 物理学 2022-01-19 A. Ya. Maltsev

Spin-torque driven ferromagnetic resonance (ST-FMR) is used to study magnetic excitations in Co/Ni synthetic layers confined in nanojunctions. Field swept ST-FMR measurements were conducted with a magnetic field applied perpendicular to the…

介观与纳米尺度物理 · 物理学 2008-02-14 W. Chen , G. de Loubens , J-M. L. Beaujour , A. D. Kent , J. Z. Sun

The Fermi arcs of topological surface states in the three-dimensional multi-Weyl semimetals on surfaces by a continuum model are investigated systematically. We calculated analytically the energy spectra and wave function for bulk…

介观与纳米尺度物理 · 物理学 2021-11-03 Y. C. Liu , V. Wang , J. B. Lin , J. Nara

Recent spectroscopic measurements in a number of strongly correlated metals that exhibit non-Fermi liquid like properties have observed evidence of anomalous frequency and momentum-dependent charge-density fluctuations. Specifically, in the…

强关联电子 · 物理学 2023-03-31 Xuepeng Wang , Debanjan Chowdhury

The role of frequency is very important in electromagnetics since it may significantly change how a material interacts with an incident wave if the frequency spectrum varies. Here, we demonstrate a new kind of microwave window that has the…

应用物理 · 物理学 2020-05-04 Hiroki Wakatsuchi , Jiang Long , Daniel F. Sievenpiper

I discuss the behaviour of Group 1 and 2 elements under pressure, describing crystallography based on diamond anvil pressure cell experiments and electronic structure calculations. In addition to these precise methods, we discuss more…

材料科学 · 物理学 2007-05-23 G. J. Ackland

Noncentrosymmetric metals such as Li$_2$(Pd$_{1-x}$Pt$_x$)$_3$B have different Fermi surface topology below and above the band touching point where spin-degeneracy is not lifted by the spin-orbit coupling. We investigate thermoelectric and…

介观与纳米尺度物理 · 物理学 2019-07-17 Sonu Verma , Tutul Biswas , Tarun Kanti Ghosh