Conduction Electrons in Materials — Classical Approach

1994 ◽  
pp. 41-59
Author(s):  
David Jiles
Keyword(s):  
Classical Approach ◽  
Conduction Electrons

Unified Semi-Classical Theory of Parallel and Perpendicular Giant Magnetoresistance in Superlattices

1995 ◽  
Vol 384 ◽  
Author(s):  
V.V. Ustinov ◽  
E.A. Kravtsov
Keyword(s):  
Boundary Conditions ◽  
Classical Theory ◽  
Giant Magnetoresistance ◽  
Distribution Functions ◽  
Classical Approach ◽  
Conduction Electrons ◽  
Boltzman Equation ◽  
Magnetic Superlattices ◽  
Exact Boundary ◽  
Spin Dependent Scattering

ABSTRACTThe giant magnetoresistance in magnetic superlattices for the current perpendicular to and in the layer planes is studied within a unified semi-classical approach that is based on the Boltzman equation with exact boundary conditions for the spin-dependent distribution functions of conduction electrons. We show that the main differences between the in-plane and perpendicular-to-plane magnetoresistance result from the fact that they originate from different interface processes responsible for spin-dependent scattering. A correlation between the giant magnetoresistance and the superlattice magnetization is also discussed and it is shown that its study has much potential for yielding information about properties of spin-dependent scattering in magnetic superlattices.

On the transport properties of a dense fully-ionized hydrogen plasma. I. The semi-classical approach

1988 ◽  
Vol 49 (7) ◽  
pp. 1147-1159 ◽  
Author(s):  
V. Zehnlé ◽  
B. Bernu ◽  
J. Wallenborn
Keyword(s):  
Transport Properties ◽  
Hydrogen Plasma ◽  
Classical Approach

State of the conduction electrons and the work function of a metal

1994 ◽  
Vol 164 (4) ◽  
pp. 375 ◽  
Author(s):  
B.V. Vasil'ev ◽  
M.I. Kaganov ◽  
V.L. Lyuboshits
Keyword(s):  
Work Function ◽  
Conduction Electrons

An interpretation on the thermodynamic properties of liquid Pb–Te alloys

2020 ◽  
Vol 39 (1) ◽  
pp. 297-303
Author(s):  
Toru Akasofu ◽  
Masanobu Kusakabe ◽  
Shigeru Tamaki
Keyword(s):  
Thermodynamic Properties ◽  
Electron Affinity ◽  
Ionization Energy ◽  
Narrow Band ◽  
Structural Information ◽  
Lead Telluride ◽  
Liquid Lead ◽  
Metallic State ◽  
Ternary Solution ◽  
Conduction Electrons

AbstractThe bonding character of liquid lead telluride \text{PbTe} is thermodynamically investigated in detail. Its possibility as an ionic melt composed of cation {\text{Pb}}^{2+} and anion {\text{Te}}^{2-} is not acceptable, by comparing the ionization energy of \text{Pb} atom, electron affinity of \text{Te} atom and the ionic bonding energy due to the cation {\text{Pb}}^{2+} and anion {\text{Te}}^{2-} with the help of structural information. Solid lead telluride PbTe as a narrow band gap semiconductor might yield easily the overlapping of the tail of valence band and that of conduction one. And on melting, it becomes to an ill-conditioned metallic state, which concept is supported by the electrical behaviors of liquid Pb–Te alloys observed by the present authors. As structural information tells us about the partial remain of some sorts of covalent-type mono-dipole and poly-dipole of the molecule \text{PbTe}, all systems are thermodynamically explained in terms of a mixture of these molecules and cations {\text{Pb}}^{4+} and {\text{Te}}^{2+} and a small amount of the conduction electrons are set free from these elements based on the ternary solution model.

scholarly journals Ruderman–Kittel–Kasuya–Yosida-type interfacial Dzyaloshinskii–Moriya interaction in heavy metal/ferromagnet heterostructures

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Taehyun Kim ◽  
In Ho Cha ◽  
Yong Jin Kim ◽  
Gyu Won Kim ◽  
Andrey Stashkevich ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Exchange Coupling ◽  
Spin Orbit Coupling ◽  
Conduction Electrons ◽  
Indirect Exchange ◽  
Metal Atoms ◽  
Technological Potential ◽  
Interfacial Modification ◽  
Coupling Phenomena ◽  
Moriya Interaction

AbstractThe manipulation of magnetization with interfacial modification using various spin-orbit coupling phenomena has been recently revisited due to its scientific and technological potential for next-generation memory devices. Herein, we experimentally and theoretically demonstrate the interfacial Dzyaloshinskii–Moriya interaction characteristics penetrating through a MgO dielectric layer inserted between the Pt and CoFeSiB. The inserted MgO layer seems to function as a chiral exchange interaction mediator of the interfacial Dzyaloshinskii–Moriya interaction from the heavy metal atoms to ferromagnet ones. The potential physical mechanism of the anti-symmetric exchange is based on the tunneling-like behavior of conduction electrons through the semi-conductor-like ultrathin MgO. Such behavior can be correlated with the oscillations of the indirect exchange coupling of the Ruderman–Kittel–Kasuya–Yosida type. From the theoretical demonstration, we could provide approximate estimation and show qualitative trends peculiar to the system under investigation.

scholarly journals Polarizable embedding for simulating redox potentials of biomolecules

2019 ◽  
Vol 21 (22) ◽  
pp. 11642-11650 ◽  
Author(s):  
Ruslan N. Tazhigulov ◽  
Pradeep Kumar Gurunathan ◽  
Yongbin Kim ◽  
Lyudmila V. Slipchenko ◽  
Ksenia B. Bravaya
Keyword(s):  
Long Range ◽  
Electrostatic Interactions ◽  
Theoretical Description ◽  
Biological Macromolecules ◽  
Classical Approach ◽  
Redox Potentials ◽  
Computational Protocol ◽  
Polarizable Embedding

We present a computational protocol exploiting polarizable embedding hybrid quantum-classical approach and resulting in accurate estimates of redox potentials of biological macromolecules. A special attention is paid to fundamental aspects of the theoretical description such as the effects of environment polarization and of the long-range electrostatic interactions on the computed energetic parameters.

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