Chapter 14 - WebAssign
... The magnitude of Δ can also influence the number of unpaired electrons on the metal, which is usually designated by the spin of the atom, ion, or molecule. The spin of a species is the sum of the individual electron spins. If there are no unpaired electrons, then there is no spin because the sum of ...
... The magnitude of Δ can also influence the number of unpaired electrons on the metal, which is usually designated by the spin of the atom, ion, or molecule. The spin of a species is the sum of the individual electron spins. If there are no unpaired electrons, then there is no spin because the sum of ...
Driven coherent oscillations of a single electron spin in a quantum dot
... probe experiments19,20. The only missing ingredient for universal quantum computation with spins in dots remained the demonstration of driven coherent spin rotations (Rabi oscillations) of a single electron spin. The most commonly used technique for inducing spin flips is electron spin resonance (ES ...
... probe experiments19,20. The only missing ingredient for universal quantum computation with spins in dots remained the demonstration of driven coherent spin rotations (Rabi oscillations) of a single electron spin. The most commonly used technique for inducing spin flips is electron spin resonance (ES ...
Magnetostriction vs. Magnetoelastic Effects
... all ferromagnetic materials. It couples elastic, electric, magnetic and in some situations also thermal fields and is of great industrial interest for use in sensors, actuators, adaptive or functional structures, robotics, transducers and MEMS. A magnetostrictive material develops large mechanical d ...
... all ferromagnetic materials. It couples elastic, electric, magnetic and in some situations also thermal fields and is of great industrial interest for use in sensors, actuators, adaptive or functional structures, robotics, transducers and MEMS. A magnetostrictive material develops large mechanical d ...
Small molecule Crystallography at the Indian Institute of Science
... The research program for Chemical Sciences Division essentially involves structure determination of inorganic systems ranging from metal hydrides, Cu I and Cu II complexes, Calixarenes and Phosphazenes and related metal complexes, organic frameworks depicting biological activity like for example Ott ...
... The research program for Chemical Sciences Division essentially involves structure determination of inorganic systems ranging from metal hydrides, Cu I and Cu II complexes, Calixarenes and Phosphazenes and related metal complexes, organic frameworks depicting biological activity like for example Ott ...
John T. Yim, Michael Keidar, and Iain D. Boyd
... – no measurements of sputter yield exist for BN at Xe+ energies below 100 eV – this region of the sputter yield profile has a large influence on Hall thruster erosion ...
... – no measurements of sputter yield exist for BN at Xe+ energies below 100 eV – this region of the sputter yield profile has a large influence on Hall thruster erosion ...
Chapter 5: Magnetic Systems in
... refrigerator door. This magnet likely consists of iron ions localized on sites of a lattice with conduction electrons that are free to move throughout the crystal. The iron ions each have a magnetic moment and due to a complicated interaction with each other and with the conduction electrons, they t ...
... refrigerator door. This magnet likely consists of iron ions localized on sites of a lattice with conduction electrons that are free to move throughout the crystal. The iron ions each have a magnetic moment and due to a complicated interaction with each other and with the conduction electrons, they t ...
Geometrical frustration
In condensed matter physics, the term geometrical frustration (or in short: frustration) refers to a phenomenon, where atoms tend to stick to non-trivial positions or where, on a regular crystal lattice, conflicting inter-atomic forces (each one favoring rather simple, but different structures) lead to quite complex structures. As a consequence of the frustration in the geometry or in the forces, a plenitude of distinct ground states may result at zero temperature, and usual thermal ordering may be suppressed at higher temperatures. Much studied examples are amorphous materials, glasses, or dilute magnets.The term frustration, in the context of magnetic systems, has been introduced by Gerard Toulouse (1977). Indeed, frustrated magnetic systems had been studied even before. Early work includes a study of the Ising model on a triangular lattice with nearest-neighbor spins coupled antiferromagnetically, by G. H. Wannier, published in 1950. Related features occur in magnets with competing interactions, where both ferro- as well as antiferromagnetic couplings between pairs of spins or magnetic moments are present, with the type of interaction depending on the separation distance of the spins. In that case commensurability, such as helical spin arrangements may result, as had been discussed originally, especially, by A. Yoshimori, T. A. Kaplan, R. J. Elliott, and others, starting in 1959, to describe experimental findings on rare-earth metals. A renewed interest in such spin systems with frustrated or competing interactions arose about two decades later, beginning in the 70s of the 20th century, in the context of spin glasses and spatially modulated magnetic superstructures. In spin glasses, frustration is augmented by stochastic disorder in the interactions, as may occur, experimentally, in non-stoichiometric magnetic alloys. Carefully analyzed spin models with frustration include the Sherrington-Kirkpatrick model, describing spin glasses, and the ANNNI model, describing commensurability magnetic superstructures.