Results 61 to 70 of about 206,767 (279)

Critical partitions and nodal deficiency of billiard eigenfunctions

open access: yes, 2012
The paper addresses the the number of nodal domains for eigenfunctions of Schr\"{o}dinger operators with Dirichlet boundary conditions in bounded domains. In dimension one, the $n$th eigenfunction has $n$ nodal domains. The Courant Theorem claims that in
Berkolaiko, Gregory   +2 more
core   +1 more source

Single Pair of Weyl Points Evolve From Spin Group‐Protected Nodal Line in Half‐Metallic Ferromagnet V3S4

open access: yesAdvanced Functional Materials, EarlyView.
A spin group (SG)‐based mechanism is proposed to realize a single pair of Weyl points. PT‐symmetric nodal lines (NLs) persist under T‐breaking, protected by the combination of SG and P symmetry. When considering spin‐orbit coupling, the SG‐protected NL will split into Weyl points, which will also induce anomalous transport phenomena arising from ...
Shifeng Qian   +6 more
wiley   +1 more source

TECTONO-PHYSICAL CONDITIONS FOR THE FORMATION OF STRUCTURES OF CENTRAL TYPE, THE PATTERNS OF DISTRIBUTION OF HYDROCARBON DEPOSITS AND FOCI OF EARTHQUAKES

open access: yesНаука. Инновации. Технологии, 2022
The paper presents a geodynamic conditions of formation of SCT, which is based on law of shear stress [3] and the regularities of distribution of tectonic stresses, outlined in the famous work by M. V. Gzovsky (1975) [2].
Vladimir Mikhaylovich Kharchenko   +1 more
doaj  

The Inverse Nodal problem for the fractional diffusion equation

open access: yesActa Scientiarum: Technology, 2015
In this paper, on a general finite interval, the inverse problem of recovering the potential function for a fractional diffusion equation with new spectral parameter, called the nodal point, is given.
Erdal Bas
doaj   +1 more source

Phononic nodal point in two dimensions: A mini-review

open access: yesFrontiers in Physics, 2022
In recent decades, nodal point states in electronic systems have attracted significant interest in current research. Recently, the conceptual framework of nodal point states has been extended to bosonic systems, especially the phononic one.
Ying Yang
doaj   +1 more source

Two-gap model for underdoped cuprate superconductors

open access: yes, 2000
Various properties of underdoped superconducting cuprates, including the momentum-dependent pseudogap opening, indicate a behavior which is neither BCS nor Bose-Einstein condensation (BEC) like. To explain this issue we introduce a two-gap model.
A. A. Varlamov   +23 more
core   +1 more source

Thermoelectric Response in Nodal‐Point Semimetals

open access: yesAnnalen der Physik
AbstractIn this review, the thermoelectric properties in nodal‐point semimetals with two bands are discussed. For the two‐dimensional (2D) cases, it is shown that the expressions of the thermoelectric coefficients take different values depending on the nature of the scattering mechanism responsible for transport, by considering examples of short‐ranged
Mandal, Ipsita, Saha, Kush
openaire   +4 more sources

Magnetic eight-fold nodal-point and nodal-network fermions in MnB2

open access: yes, 2023
5 figures and 7 ...
Ge, Yongheng   +5 more
openaire   +2 more sources

Dynamics of Nodal Points and the Nodal Count on a Family of Quantum Graphs [PDF]

open access: yesAnnales Henri Poincaré, 2011
We investigate the properties of the zeros of the eigenfunctions on quantum graphs (metric graphs with a Schr dinger-type differential operator). Using tools such as scattering approach and eigenvalue interlacing inequalities we derive several formulas relating the number of the zeros of the n-th eigenfunction to the spectrum of the graph and of some ...
Band, Ram   +2 more
openaire   +3 more sources

2D Multifunctional Spin‐Orbit Coupled Dirac Nodal Line Materials

open access: yesAdvanced Functional Materials, EarlyView.
A total of 473 nonmagnetic and antiferromagnetic 2D spin‐orbit coupled Dirac nodal line materials are screened, spanning 5 layer groups and 12 magnetic space groups. Furthermore, it integrates their topological properties with electride, multiferroic, and magnetic characteristics, revealing unique systems with expanded functionalities and promising ...
Weizhen Meng   +7 more
wiley   +1 more source

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