A New Condition of Formation and Stablity of All Crystalline Systems in a Good Agreement with Experimental Data
Journal Title: JOURNAL OF ADVANCES IN PHYSICS - Year 2015, Vol 11, Issue 4
Abstract
In this paper we derived a new condition of formation and stability of all crystalline systems and we checked its validity and it is found to be in a good agreement with experimental data. This condition is derived directly from the quantum conditions on the free electron Fermi gas inside the crystal. The new condition relates both the volume of Fermi sphere VF and volume of Brillouin zone VB by the valence electron concentration VEC as ; for all crystalline systems (where n is the number of atoms per lattice point).
Authors and Affiliations
Tarek El-Ashram
Newton's First Law of motion is not real
Newton's first law of motion is well recognized theory for physics. But my attempt is to obtain a contradiction to Newton's first law of motion. It may be a challenge to the physics world. Consider an object that has car...
Controlling of N-P Junction Properties
Characteristics of cylindrical N-P junction are shown to be interestingly different than those of planar N-P junction, thereby permitting better control of its luminescence properties.
House dust mite trapping kit
Examination of dust collected from the homes of asthmatic patients showed there were significant numbers of house dust mites (HDM). The allergens generated from HDM are considered to be among the risk factors for asthma...
Broad Band Electromagnetic Interference (EMI) Shielding Properties of Polyaniline/ Polyvinyl Alcohal/ Fly Ash/ MnO2 Free Standing Films
Microwave absorbing material (MAM) is a kind of functional material that can absorb electromagnetic wave effectively and convert electromagnetic energy into heat or make electromagnetic wave disappear by interference. Th...
Neutron dose evaluation of Elekta Linac at two energies (10 & 18 MV) by MCNP code and comparison with experimental measurements
Medical linear accelerators, besides the clinically high energy electron and photon beams, produce other secondary particles such as neutrons which escalate the delivered dose. In this study the neutron dose at 10 and 18...