Results 61 to 70 of about 93,610 (302)

Breakdown of Universality in Quantum Chaotic Transport: the Two-Phase Dynamical Fluid Model

open access: yes, 2004
We investigate the transport properties of open quantum chaotic systems in the semiclassical limit. We show how the transmission spectrum, the conductance fluctuations, and their correlations are influenced by the underlying chaotic classical dynamics ...
A. Ossipov   +10 more
core   +2 more sources

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur   +5 more
wiley   +1 more source

Circuit Quantum Simulation of a Tomonaga-Luttinger Liquid with an Impurity

open access: yesPhysical Review X, 2018
The Tomonaga-Luttinger liquid (TLL) concept is believed to generically describe the strongly correlated physics of one-dimensional systems at low temperatures.
A. Anthore   +7 more
doaj   +1 more source

Casimir-cavity-induced conductance changes

open access: yesPhysical Review Research, 2021
The differential conductance of metal-insulator-metal devices increases when they are joined with Casimir cavities. An imbalance in injection of hot charge carriers from each side of the insulator is increased with thinner cavities that suppress more ...
Garret Moddel   +3 more
doaj   +1 more source

Quantum Conductance in Silver Nanowires: correlation between atomic structure and transport properties

open access: yes, 2002
We have analyzed the atomic arrangements and quantum conductance of silver nanowires generated by mechanical elongation. The surface properties of Ag induce unexpected structural properties, as for example, predominance of high aspect ratio rod-like ...
A. R. Rocha   +24 more
core   +1 more source

Trace Nickel Activated Biphasic Core‐CuOii/Shell‐CuOi Secondary Microspheres Enable Room Temperature Parts‐Per‐Trillion‐Level NO2 Detection

open access: yesAdvanced Engineering Materials, EarlyView.
An idea of designing novel sensors is proposed by creating appropriate Schottky barriers and vacancies between isomorphous Core‐CuOii/ Shell‐CuOi secondary microspheres and enhancing catalytic and spill‐over effects, and electronegativity via spontaneous biphasic separation, self‐assembly, and trace‐Ni‐doping.
Bala Ismail Adamu   +8 more
wiley   +1 more source

Electron-phonon scattering in quantum point contacts

open access: yes, 2002
We study the negative correction to the quantized value $2e^2/h$ of the conductance of a quantum point contact due to the backscattering of electrons by acoustic phonons. The correction shows activated temperature dependence and also gives rise to a zero-
B. K. Ridley   +8 more
core   +1 more source

Conductivity of quantum spin chains: A quantum Monte Carlo approach [PDF]

open access: yesPhysical Review B, 2002
We discuss zero-frequency transport properties of various spin-1/2 chains. We show, that a careful analysis of Quantum Monte-Carlo (QMC) data on the imaginary axis allows to distinguish between intrinsic ballistic and diffusive transport. We determine the Drude weight, current-relaxation life-time and the mean-free path for integrable and a non ...
Alvarez, J. V., Gros, Claudius
openaire   +2 more sources

Sustainable Synthesis of Bio‐Based Magnetic and Conductive Wood for Electromagnetic Interference Shielding Applications

open access: yesAdvanced Engineering Materials, EarlyView.
A wood‐based magnetic and conductive material called Magwood (MW), capable of blocking almost 99.99% of electromagnetic waves (in the X‐band frequency range), is synthesized using a simple, solvent‐free process. MW is lightweight, resists water, and is flame‐retardant, making it a promising alternative for shielding electronics. The rapid proliferation
Akash Madhav Gondaliya   +3 more
wiley   +1 more source

The role of oxygen vacancies in the high cycling endurance and quantum conductance in BiVO4‐based resistive switching memory

open access: yesInfoMat, 2020
Resistive random access memory (RRAM) has emerged as a new discipline promoting the development of new materials and devices toward a broad range of electronic and energy applications. Here, we realized a memristive device with weak dependence on the top
Mengting Zhao   +7 more
doaj   +1 more source

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