arXiv subjects

V. A. Vdovenkov

Publications and source records attributed to V. A. Vdovenkov.

6 recordsLinked to original sources

arXiv2008

Evidence for hyperconductivity and thermal superconductivity

Physical explanation of hyperconductivity and thermal superconductivity existence is done in given article on the basis of inherent atomic nuclei oscillations in atoms of materials which are connected with electrons and phonons and in accordance with the well known Bardeen-Cooper-Schrieffer superconductivity theory. It is shown that hyperconductivity is the self-supporting, independent physical phenomenon which is caused by oscillations of atomic nuclei in atoms of materials and the minimal temperature of its existence does not reach absolute zero temperature. Hyperconductivity represents the typical dynamic condition of a material with zero electrical and zero thermal resistances.

cond-mat.supr-con↗

arXiv2006

Adiabatic and Nonadiabatic Electronics of Materials

Physical foundations of adiabatic and nonadiabatic electronics of materials are considered in this article. It is shown the limitation of adiabatic approach to electronics of materials. It is shown that nonadiabatic physical properties of solid materials (hyperconductivity, superconductivity, thermal superconductivity and phonon drag of electrons at Debye's temperatures of phonons) depend on oscillations of atomic nuclei in atoms.

cond-mat.mtrl-sci↗

arXiv2002

Oscillations of atomic nuclei in crystals

Oscillations of atomic nuclei in crystals are considered in this paper. It is shown that elastic nuclei oscillations relatively electron envelops (inherent, I-oscillations) and waves of such oscillations can exist in crystals at adiabatic condition. The types and energy quantums of I-oscillations for different atoms are determined. In this connection the adiabatic crystal model is offered. Each atom in the adiabatic model is submitted as I-oscillator whose stationary oscillatory terms are shown as deep energy levels in crystals. The I-oscillations can be created at the expense of recombination energy of electrons and holes on electron-vibrational centers in semiconductors. They interact among themselves, with phonons and electrons, they influence on physical properties of crystals and crystal structures. The I-oscillations representing oscillations of atomic nuclei relatively electron system in crystals or molecules are the important physical reality.

cond-mat.mtrl-sci↗

arXiv2002

Phonon drag of electrons at high temperatures

Temperature-dependent thermoelectric power (TEP) in semiconductor crystals and crystal structures containing an electron-vibrational centers (EVC) was investigated in this article. The TEP contain narrow pius at Debye temperatures for different phonons. In thin epitaxial layers on substrates such pius exist at Debye temperatures of substrates phonons. These pius existence imposable to explain on basis of known TEP theory but it may be explained by the phonon drag of electrons (PDE) effect. In this connection there is the necessity to change traditional point of view on the PDE effect existence only at low temperatures and expand the PDE theory on case of strong electron-phonon coupling provided by EVC at high temperatures.

cond-mat.str-el↗

arXiv2000

Superconductivity at Very Hygh Temperatures - Hyperconductivity

The mechanism of superconductivity caused by the electron-vibrational centres and their inherent oscillations in crystals and solid-state structures near room temperature and at higher temperatures - hyperconductivity is discussed and actualized. The experimental data about hiperconductivity in some materials are presented. Hyperconductivity arises and exists from normal-superconducting transition temperature Tc to 800K and probably up to melting of material (probably up to temperature of crystal melting and is higher). Tc in various materials varies from hundred up to several hundreds degrees on Kelvin scale depending on size of average nuclear number of a material.

cond-mat.supr-con↗

arXiv1999

Phonon-Drag Thermopower at High Temperatures

The adiabatic cristal model is offered. It is shown that springy nuclei oscillations relatively electronic envelops and waves of such oscillations (inherent oscillations and waves) may exist in crystals. The analysis of experimental temperature dependencies of resistivity in semiconductors with electron-vibrational centres has shown that inherent oscillations effectively interact with crystalline phonons as well as with electrons and holes, creating powerful interaction of electrons and holes with phonons. The experimental narrow peaks of phonon-drag thermoelectric power at Debye temperatures from 77K to 700K confirm existence of inherent oscillations waves in crystals. Inherent oscillations and waves gives rise to strong electron-phonon interaction and probably can bring about superconductivity at temperatures as below so and well above room temperature.

cond-mat.mes-hall↗