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A shape-dependent superconducting resonance can be expected when an energy level associated with the transverse motion in a wire passes through the Fermi surface. We show that the recently observed width-dependent increase of $T_c$ in ${\rm…

超导电性 · 物理学 2009-04-21 A. A. Shanenko , M. D. Croitoru , M. Zgirski , F. M. Peeters , K. Arutyunov

The Purcell effect describes the modification of the spontaneous decay rate in the presence of electromagnetic media and bodies. In this work, we shed light on the dependencies and magnitude of this effect for chiral materials. Using the…

量子物理 · 物理学 2025-07-18 C. S. Rapp , Janine C. Franz , S. Y. Buhmann , O. J. Franca

We analyze the extrapolation to the thermodynamic limit of Fermi liquid properties of the homogeneous electron gas in two and three dimensions. Using field theory, we explicitly calculate finite-size effects of the total energy, the…

强关联电子 · 物理学 2016-03-15 Markus Holzmann , Bernard Bernu , David M. Ceperley

Using the fluctuation exchange approximation of the one band Hubbard model, we discuss the origin of the changing Fermi surface volume in underdoped cuprate systems due to the transfer of occupied states from the Fermi surface to its…

凝聚态物理 · 物理学 2016-08-31 J. Schmalian , M. Langer , S. Grabowski , K. H. Bennemann

A wide range of unconventional transport phenomena have recently been observed in single-crystal delafossite metals. Here, we present a theoretical framework to elucidate electron transport using a combination of first-principles…

材料科学 · 物理学 2022-08-17 Georgios Varnavides , Yaxian Wang , Philip J. W. Moll , Polina Anikeeva , Prineha Narang

Novel fermions with relativistic linear dispersion can emerge as low-energy excitations in topological semimetal materials. Here, we show that the orbital moment contribution in the circular photomagnetic effect for these topological…

介观与纳米尺度物理 · 物理学 2024-07-12 Jin Cao , Chuanchang Zeng , Xiao-Ping Li , Maoyuan Wang , Shengyuan A. Yang , Zhi-Ming Yu , Yugui Yao

The occurrence of non-adiabatic effects in the vibrational properties of metals have been predicted since the 60's, but hardly confirmed experimentally. We report the first fully \emph{ab initio} calculations of non-adiabatic frequencies of…

材料科学 · 物理学 2009-11-13 A. Marco Saitta , Michele Lazzeri , Matteo Calandra , Francesco Mauri

We derive a general scaling relation for the anomalous Hall effect in ferromagnetic metals involving multiple competing scattering mechanisms, described by a quadratic hypersurface in the space spanned by the partial resistivities. We also…

介观与纳米尺度物理 · 物理学 2015-06-03 Dazhi Hou , Gang Su , Yuan Tian , Xiaofeng Jin , Shengyuan A. Yang , Qian Niu

Since its launch in 2008 the Fermi Large Area Telescope provides regular monitoring of a large sample of gamma-ray sources on time scales from hours to years. Together with observations at other wavelengths it is now possible to study…

高能天体物理现象 · 物理学 2012-07-09 Stefan Larsson

We report on a band structure calculation and de Haas-van Alphen measurements of KFe$_2$As$_2$. Three cylindrical Fermi surfaces are found. Effective masses of electrons range from 6 to 18$m_e$, $m_e$ being the free electron mass.…

Graphene-metal interface as one of the interesting graphene-based objects attracts much attention from both application and fundamental science points of view. This paper gives a timely review of the recent experimental works on the growth…

材料科学 · 物理学 2015-07-10 Yuriy Dedkov , Elena Voloshina

We study the role of finite size effects on a metallic critical behavior near a q = 0 critical point and compare the results with the recent extensive quantum Monte-Carlo (QMC) study [Y. Schattner et al, PRX 6, 0231028]. This study found…

强关联电子 · 物理学 2017-08-02 Avraham Klein , Andrey Chubukov

Clean metallic superlattice systems composed of alternating layers of superconducting and normal materials are considered, particularly aspects of the proximity effect as it affects the critical temperature. A simple model is used to…

凝聚态物理 · 物理学 2015-06-25 J. Chen , R. Kobes , J. Wang

We give an overview on experimental studies performed in the last 25 years on heavy-fermion systems in high magnetic field. The properties of field-induced magnetic transitions in heavy-fermion materials close to a quantum…

强关联电子 · 物理学 2013-02-21 D. Aoki , W. Knafo , I. Sheikin

The origin of the correlation between surface reactivity and quantum-size effects, observed in recent experiments on the oxidation of ultrathin magnesium films, is addressed by means of ab-initio calculations and model predictions. We show…

材料科学 · 物理学 2009-11-11 N. Binggeli , M. Altarelli

The electron-electron scattering rate of low-energy quasiparticles is computed perturbatively for a two-dimensional metal with a partially nested Fermi surface, a weak electron-electron interaction and an energy-independent impurity…

强关联电子 · 物理学 2011-05-26 Eliot Kapit

The goal of this paper is to give some rigorous results, concerning high density behavior of Fermi systems.

数学物理 · 物理学 2012-01-17 V. A. Malyshev , A. A. Zamyatin

It has been found that periodically closely spaced vacancies on a graphite sheet cause a significant rearrange-ment of its electronic spectrum: metallic waveguides with a high density of states near the Fermi level are formed along the…

材料科学 · 物理学 2007-05-23 L. A. Chernozatonskii , P. B. Sorokin , E. E. Belova , J. Bruning , A. S. Fedorov

The review is devoted to a discussion of new (and often unexpected) aspects of the old problem of elastic light scattering by small metal particles, whose size is comparable to or smaller than the thickness of the skin layer. The main focus…

光学 · 物理学 2020-09-21 Michael I. Tribelsky , Andrey E. Miroshnichenko

We study the dynamic electronic polarizability of a single nano-scale spherical metallic grain using quantum mechanical approach. We introduce the model for interacting electrons bound in the grain allowing us numerically to calculate the…

介观与纳米尺度物理 · 物理学 2011-05-30 A. A. Zharov , I. S. Beloborodov