Do you think a material with little or no crystal structure (a "glass") could be superconducting? If yes, explain why or why not.

Q: Question 1: The electrical conductivity of sapphire along a particular axis is 1.25 (2m)1 at 1500°C.…

A: Given : To state from the given data whether oxygen ion movement is the dominant charge transport…

Q: What is a superconductor? Give one example of it.

A: A material that transfer electrons from one atom to another without the presence of resistance is a…

Q: how does the band structure of a solid makes it an insulator, semiconductor or conductor?

A: Explanation: Conductor: The conductor is a material that contains free movable charges which conduct…

Q: Tin (Sn) has a superconductive critical temperature Tc = 3.7 K and critical magnetic field at T = 0…

A: Given : critical temperature of sn (TC) =3.7k critical magnetic field at T=0k = BC=H0= 31mT  current…

Q: Why are the magnetic fields of superconducting magnets often stronger than those of conventional…

A: In Superconductor, there is no electrical resistance to the flow of electrons. Therefore, there are…

Q: Silicon crystal has a saturated drift velocity, which limits the applications in power devices.…

A: GaAs Material GaAs have a direct bandgap unlike many other semiconductors denoting it can emit light…

Q: 15.17 Type I superconductors show abrupt loss of supercon- ductivity when an applied magnetic field…

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Q: › Considering the diamond structure, what is the number of atoms per cell? Show that the packing…

A: The space lattice of a diamond is face-centered cubic. In the diamond crystal structure, there is…

Q: Describe the arrangements of the angles and lattice parameters for 4 crystal systems of your choice

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Q: These "holes" can move through p-type doped silicon, and effectively act as though they are charges.

A: There are two type of semiconductor. 1. n type with majority electrons and minority holes  2. p type…

Q: What is Lattice Vibrations in Superconductivity?

A: Lattice The oscillations of atoms in a solid about their equilibrium position are known as…

Q: In an n-type silicon, which of the following statement is true:(a) Electrons are majority carriers…

A: The semiconductor is a type of material and its conductivity lies between the conductor and…

Q: 2) In an intrinsic semiconductor: O There are only holes. There are no free electrons. The free…

A: In intrinsic semiconductor, the external thermal energy provided will break the covalent bond in the…

Q: What is an intrinsic semiconductor? How is its electrical conductivity changes with temperature…

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Q: Superconductors from mixing mercury and lead needs what condition to work effectively?  a. hot…

A: Superconductors are materials that conduct electricity with the least resistance when a critical…

Q: What are Superconductors? Give examples.

A: Superconductors are the conductors that have the ability to conduct electricity with zero…

Q: Two basic transport mechanisms in a semiconductor crystal are:

A: Two kinds: 1. Diffusion current: Difference in concentration of charge carriers (concentration…

Q: Discuss the applications of Impurity defects in Semiconductors?

A: Pure semiconductors, also known as intrinsic semiconductors don’t actually conduct electricity. This…

Q: can act sometimes as a conductor and sometimes as an insultor. O Insulator O Conductor O…

A: Semiconductors are materials that have electric conductivity in between conductors (usually metals)…

Q: Soft superconductors : O have infinite layer structures. O form single-walled nanotubes O their…

A: The soft superconductors exhibit a very sharp transition to a superconducting state.

Q: The angle between [111] and [11-2] directions in a cubic crystal is (in degrees) а. 45 b. 90 OC. d.…

A: The angle between two planes of cubic crystal having miller indices (h1,k1,l1) and (h2,k2,l2) is θ…

Q: What is the critical temperature for a superconductor?

A: The conductors are the material which can flow the electric current easily through them.

Q: Imagine you generate a three-dimensional lattice by taking vector a and b vectors that form a…

A: Given : Vector a and b form a two dimensional square lattice  Vector c is of different length and…

Q: Construct the reciprocal lattice for two-dimensional lattice in which a = 1.25 Å, b = 2.5 Å, and γ =…

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Q: Evaluate the Packing fractions of the sc, fcc, bcc and hcp crystals.

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Q: What do you call the ability of some superconductors to exhibit perfect diamagnetism in the…

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Q: How could you make compensated silicon that has twice as many acceptors as donors?

A: A compensated semiconductor contains both types of dopants. There are two types of dopants added to…

Q: How do high- Tc superconductors become resistanceless at such high temperatures?

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Q: 157. The barrier potential of a p-n junction depends on : a. Type of semiconductor material b.…

A: Barrier potential in between the p-n type of diode is depends upon doping of minority charge  and on…

Q: What role does symmetry play in crystallography? What are symmetry operations and how do they work?…

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Q: What are Extrinsic Semiconductors?

A: The impure semiconductor is known as an extrinsic semiconductor.

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: 1. See example 4.2 on page 112. For silicon at 300 K, calculate the clectron concentratión,…

A: Given: T=300K a. EC-EF = 0.25 eVb. EC - EF = 0.35 eVc. EC- EF=0.45 eV

Q: Calculate the value of the force constant for a crystal of sodium chloride, if you know g, and the…

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Q: 2) Critical magnetic fields of a certain superconductor are experimentally measured as 0.175 T at 15…

A: Given : T1=15K              T2=12K              Bc(T1)=0.175T              Bc(T2)=0.700T   (a) The…

Q: If a sodium chloride (NaCl) molecule could undergo an n S n - 1 vibrational transition with no…

A: The angular frequency formula is ω=kμ Where, k=Spring constantμ=reduced mass

Q: Give some applications of superconductors.

A: Super conductors are the conductors having the resistance zero at particular temperature.

Q: What is the critical temperature Te for Hg known as superconductors? O A) 3.3 K B) 2.4 K OC) 5.2 K…

A: Critical temperature: The critical temperature of a superconductor is defined as the temperature at…