Dictionary of Material Science and High Energy Physics Part 9 pptx

Dictionary of Material Science and High Energy Physics Part 9 pptx

Dictionary of Material Science and High Energy Physics Part 9 pptx

... plane of polarization of incoming light. The molecules of these materials (crystals and com- pounds) have asymmetric molecular structures. Themoleculescanexistinleft-andright-handed forms. Particular ... density of oc- cupation in energy. The term f (ε)g(ε) plotted as a function of energy, ε, represents the total number of particles in the system. occupationnumber Thenumberof...
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Dictionary of Material Science and High Energy Physics Part 2 pptx

Dictionary of Material Science and High Energy Physics Part 2 pptx

... theorem is of great value in understanding magnetic ions in crystals. degeneracy, lifting of, or removal of Slight inequality of energy of a group of quantum states due to the presence of a perturbation, ... in particle-antiparticle pairs, bosons can be created and destroyed singly. bounce frequency The average frequency of oscillation of a particle trapped in a magnetic...
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Dictionary of Material Science and High Energy Physics Part 10 pptx

Dictionary of Material Science and High Energy Physics Part 10 pptx

... of detailed balance In equilib- rium, the power radiated and absorbed by a body must be equal for any particular element of area of the body, for any particular direction of po- larization, and ... is a linear function of its fre- quency was the origin of the understanding, due to A. Einstein, of light as consisting of quanta of energy E = hν, where ν is the frequency...
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Dictionary of Material Science and High Energy Physics Part 1 pdf

Dictionary of Material Science and High Energy Physics Part 1 pdf

... VOLUMES Dictionary of Pure and Applied Physics Dipak Basu Dictionary of Material Science and High Energy Physics Dipak Basu Dictionary of Geophysics, Astrophysics, and Astronomy Richard A. Matzner © 2001 by ... other two being Dictionary of Pure and Applied Physics and Dictionary ofGeophysics, Astrophysics,andAstronomy. Each of these three dictionar...
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Dictionary of Material Science and High Energy Physics Part 3 potx

Dictionary of Material Science and High Energy Physics Part 3 potx

... conservation of energy and momentum. density of modes The number of modes of the radiation field in an energy range dE. The density of modes is a function of the boundary conditions ofthe spaceunder ... single point particle in three-dimensional space has three degrees of freedom; a system of N point particles has 3N degrees of freedom. De Haas–Van Alphan effect In 193...
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Dictionary of Material Science and High Energy Physics Part 4 ppsx

Dictionary of Material Science and High Energy Physics Part 4 ppsx

... in the study of Brownian motion in 190 5 and 190 6, the concept was significantly extended by H. Nyquist ( 192 8), L. Onsager ( 193 1), H.B. Callen and T.A. Welton ( 195 1), and R. Kubo ( 195 7). See also ... shift). energy spectrum The set of energy eigen- states of a physical system. The set of possible outcomes of a measurement of the energy; also known as the set of...
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Dictionary of Material Science and High Energy Physics Part 5 pps

Dictionary of Material Science and High Energy Physics Part 5 pps

... the number of particles in a state of energy E s . grand unification Physics attempts to ex- plain natural phenomenon in terms of a set of fundamental axioms. It is the general goal of physics to ... wave- length, g 1 and g 2 are degeneracies of lower and excited states, N 1 and N 2 are the number of atoms in the lower and excited states, ν and ν o are field and...
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Dictionary of Material Science and High Energy Physics Part 6 docx

Dictionary of Material Science and High Energy Physics Part 6 docx

... are made of heterojunctions. A het- erojunction is made of layers of two different types of materials which are doped by p and n types of atoms. For example, layers of n and p type GaAs and AlGaAs ... exists. impurity band An energy level caused by the presence of impurity atoms. incident energy The energy of the incoming particle in a collision process. incident fl...
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Dictionary of Material Science and High Energy Physics Part 7 pot

Dictionary of Material Science and High Energy Physics Part 7 pot

... in a flow field. kinetic energy A form of energy associated with motion. Every moving particle has kinetic energy. The kinetic energy of a non-relativistic particle with mass m and speed v is equal ... = m 1 m 2 m 1 +m 2 is the reduced mass for particles of mass m 1 and m 2 , and r = r 1 − r 2 are the relative position vectors of particles 1 and 2. Suitable sets of cent...
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Dictionary of Material Science and High Energy Physics Part 8 pps

Dictionary of Material Science and High Energy Physics Part 8 pps

... reduction of the tem- perature of atoms in the gas or bulk phase by means of laser radiation. Most often the cool- ing is associated with a reduction in the speed of the atoms and a narrowing of their ... descriptionof the distributionof speeds present in a collection ofgasmolecules. A com- bination ofthe statisticalargumentsproposed by James Clerk Maxwell (1831–18 79) and Ludwi...
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