How does BCS theory explain the origin of bandgap and critical temperature in superconductors?
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A: Thermionic emission is a process by which electrons can be emitted from a metal surface by simply…
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A: The energy of the photon would be equal to the band-gap for the Ga-As. Therefore, we can write the…
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A: Semiconductors without any impurity has equal number of holes in valence band and electrons in…
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A: Answer: Introduction: CZT detector: Cadmium Zinc Telluride is mainly used for the spectroscopy…
Q: Part (11): 1- What is the mean contrast between M-B and F-D statistics? 1- Calculate the Fermi…
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Q: Describe an extrinsic semiconductor material. What is the value or the electron concentration in an…
A: Semiconductors are materials that have a conductivity between the conductors and insulators, making…
Q: In your own words, explain what a Stokes shift is and why it occurs in many fluorescent dyes.
A: STOKES SHIFT When a light of wavelength incident on the part, the molecules absorb the energy and…
Q: What us the free electron? Why is insulator non-conductive?
A: Answer Insulators are the material which does not allow electricity pass through it. Air, cloth,…
Q: Concisely discuss superconductivity using BSC theory
A: BCS stands for Bardeen, Cooper and Schrieffer. The BCS theory explains the superconductivity of only…
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A: Conventional Current- The flow of positive charges in a circuit from positive terminal to negative…
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A: The question asks for an o explanation of how the principles of quantum mechanics explain the…
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A: Solution
Q: Determine Icsan for the transistor shown in the figure below. What is the value of Is necessary to…
A: Given is VCC =5 VRC =10 K ohm βDC =150RB =1 M ohm find : IB (sat) and VIN (min)
Q: . (a) Comment on the achievements and failures of the Free Electron model. (b) Defin e Fermi Dirac…
A: The free electron model was proposed by Arnold sommerfeld by combing Classical Drude model with with…
Q: What is the phenomenon of superconductivity in regards to low temperature, Type I, Type II, high…
A: Superconductors Superconductors are solids that exhibit zero resistance to the flow of electrical…
Q: What is Lattice Vibrations in Superconductivity?
A: Lattice The oscillations of atoms in a solid about their equilibrium position are known as…
Q: Why the properties of nanomaterials affected by quantum confinement?
A: Nanomaterials are the materials having at least one external dimension that measures 100 nanometres…
Q: How is p-type semiconductor different from n-type?
A: When a five-composite atom of pure silicon crystal is inserted as an adulterant, then the four…
Q: How is a Zener diode fabricated? What causes the setting up of high electric field even for small…
A: A Zener diode is fabricated by heavily doping both p and n sides of the junction. Because of heavy…
Q: Compare Electron Ionization and Matrix assisted laser desorption Ionization (MALDI) ? Please answer…
A: Electrospray ionization (ESI-MS) and matrix assisted laser desorption-ionization (MALDI-MS) were…
Q: Q. 1: 3 Energy (e) 0 -1 GaAs AF-0.31 Valence band [111] 0 (a) A Conduction band [100] Eg=1.42 eV…
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Q: What is the minimum fraction of the lasing molecules in a three-level laser that must be in the…
A: Explanation: A three level laser: The three level laser system, in addition to the state , has an…
Q: from E-k curve, Q. 1; 3 Energy (eV) GaAs ΔΕ 0.31 Valence band [111] O k (a) 1. Energy gap, Eg 2.…
A: Given:- Eg= 1.42 ev
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A: Magnitude of a vector: The magnitude of a vector is given by the expression, where represents the…
Q: The bandgaps of silicon and gallium arsenide are 1.12 eV and 1.42 eV, respectively. What are the…
A: Eg=1.12 eV=1.12×1.6×10-19 J The bandgap energy is given by Eg=hcλRearrangingλ=hcEgInserting…
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Q: Question 1) Briefly explain the temperature dependence of conductivity of a p-type semiconductor.
A: An extrinsic semiconductor in which impurity is added to the pure semiconductor, this impurity have…
Q: Consider the circult shown in the Figure below, (a) What type of circult is this? (b) What is the…
A: Given Primary voltage Vpri= 110 V Load resisitance RL = 1.0 KΩ Turns ratio (n) = 1/4 =…
Q: Voltage (V) 3 2 m 0.0 12.5 25.0 37.5 50.0 Time (s)
A: To find the rms.voltage of above graph
Q: describe how light is produced in a pn junction.
A:
Q: Explain the mechanism of forming space charge region in forward and reverse biasing mode?
A: When majority of semiconductor comes in contact with a different semiconductor (doped semiconductor)…
Q: Explain why the free electron model is unable to explain material systems which has an energy gap!…
A: free electron model we consider the electron gas into metal moving freely In free electron model it…
Q: An oxide-mineral based semiconductor has a bandgap of 2.11 eV. Find the shortest wavelength of light…
A: Given: E = 2.11eV Since 1eV = 1.6x10-19 Joule Then, E = 2.11 x 1.6x10-19 = 3.376 x 10-19…
Q: Why should elements and compounds with positive paramagnetic susceptibilities not be good candidates…
A: Paramagnetic materials: These materials are categorised as those which are weekly attracted to the…
Q: why Seebeck coefficient has opposite signs for n and p type semiconductors. What are the materials…
A: Seebeck coefficient is the voltage built up when a small temperature gradient is applied to a…
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