Results 21 to 30 of about 1,287,669 (295)

Thermal Hall conductivity in the cuprate Mott insulators Nd2CuO4 and Sr2CuO2Cl2

open access: yesNature Communications, 2020
What makes the phonons in cuprates become chiral, as measured by their thermal Hall effect, is an unresolved question. Here, the authors rule out two extrinsic mechanisms and argue that chirality comes from a coupling of acoustic phonons to the intrinsic
Marie-Eve Boulanger   +13 more
doaj   +1 more source

Sum rules for the optical and Hall conductivity in graphene [PDF]

open access: yesPhysical Review B, 2007
Graphene has two atoms per unit cell with quasiparticles exhibiting the Dirac-like behavior. These properties lead to interband in addition to intraband optical transitions and modify the $f$-sum rule on the longitudinal conductivity. The expected dependence of the corresponding spectral weight on the applied gate voltage $V_g$ in a field effect ...
Gusynin, V. P.   +2 more
openaire   +2 more sources

Multiple Magnetorotons and Spectral Sum Rules in Fractional Quantum Hall Systems

open access: yesPhysical Review Letters, 2022
We study numerically the the charge neutral excitations (magnetorotons) in fractional quantum Hall systems, concentrating on the two Jain states near quarter filling, $ν=2/7$ and $ν=2/9$, and the $ν=1/4$ Fermi-liquid state itself. In contrast to the $ν=1/3$ states and the Jain states near half filling, on each of the two Jain states $ν=2/7$ and $ν=2/9$
Dung Xuan Nguyen   +4 more
openaire   +3 more sources

Skew quantum Murnaghan-Nakayama rule [PDF]

open access: yes, 2011
In this paper, we extend recent results of Assaf and McNamara on skew Pieri rule and skew Murnaghan-Nakayama rule to a more general identity, which gives an elegant expansion of the product of a skew Schur function with a quantum power sum function in ...
Konvalinka, Matjaz
core   +2 more sources

An Analytical Geometry Optimization Model for Current-Mode Cross-Like Hall Plates

open access: yesSensors, 2019
This paper presents a new analytical geometry optimization model to depict the optimal current sensitivity and signal-to-noise ratio (SNR) for the current-mode Hall devices.
Yue Xu, Xingxing Hu, Lei Jiang
doaj   +1 more source

Hall–Petch effect in binary and ternary alumina / zirconia / spinel composites

open access: yesJournal of Materials Research and Technology, 2021
We present the Hall–Petch correlation between microhardness values and grain sizes for single, binary (50-50 vol.%), and ternary (33-33-33 vol.%) phase composites of yttria-stabilized zirconia (8Y–ZrO2), spinel (MgAl2O4), and alumina (Al2O3) samples ...
Ekaterina Novitskaya   +4 more
doaj   +1 more source

Sign of inverse spin Hall voltages generated by ferromagnetic resonance and temperature gradients in yttrium iron garnet|platinum bilayers [PDF]

open access: yes, 2014
We carried out a concerted effort to determine the absolute sign of the inverse spin Hall effect voltage generated by spin currents injected into a normal metal. We focus on yttrium iron garnet (YIG)|platinum bilayers at room temperature, generating spin
Bauer, Gerrit E. W.   +15 more
core   +3 more sources

Electronic Wave-Packets in Integer Quantum Hall Edge Channels: Relaxation and Dissipative Effects

open access: yesEntropy, 2021
We theoretically investigate the evolution of the peak height of energy-resolved electronic wave-packets ballistically propagating along integer quantum Hall edge channels at filling factor equal to two.
Giacomo Rebora   +5 more
doaj   +1 more source

Presenting decision tree for best mixing rules and Z-factor correlations and introducing novel correlation for binary mixtures

open access: yesPetroleum, 2016
The significance of gas compressibility factor in petroleum engineering encourages the researchers to employ the most accurate and precise methods for estimation of this factor.
Mohamad Mohamadi-Baghmolaei   +3 more
doaj   +1 more source

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