From the figures for the phonon dispersion curves for Si and GaAs plus the equations for optical
Question:
From the figures for the phonon dispersion curves for Si and GaAs plus the equations for optical and acoustic phonons, explain why the energy for the Si curves is higher in energy than the curves for GaAs? Assume that the elastic constant is about the same for both materials. Also, why do the optical and acoustic phonon branches cross at the zone boundary for Si but not for GaAs?
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 44% (9 reviews)
The energy of the phonon dispersion curves is directly related to the elastic con...View the full answer
Answered By
BillClinton Muguai
I have been a tutor for the past 5 years. I have experience working with students in a variety of subject areas, including computer science, math, science, English, and history. I have also worked with students of all ages, from elementary school to college. In addition to my tutoring experience, I have a degree in education from a top university. This has given me a strong foundation in child development and learning theories, which I use to inform my tutoring practices.
I am patient and adaptable, and I work to create a positive and supportive learning environment for my students. I believe that all students have the ability to succeed, and it is my job to help them find and develop their strengths. I am confident in my ability to tutor students and help them achieve their academic goals.
0.00
0 Reviews
10+ Question Solved
Related Book For
Question Posted:
Students also viewed these Engineering questions
-
Why do bonds with lower seniority have higher yields than equivalent bonds with higher seniority?
-
Explain why cross hedges generally exhibit greater risk than hedges using a futures contract based on the underlying cash instrument hedged.
-
Explain why most peoples marginal tax rate is higher than their average tax rate. Is a system in which average tax rates are higher than marginal tax rates regressive, proportional, or progressive?
-
What are the upper and lower 2.5th percentiles for a chi-square distribution with 2 df? What notation is used to denote these percentiles? Pulmonary Disease The data in Table 6.10 concern the mean...
-
Metalinc Ltd. is a mining company based in eastern Canada. Metalinc has 10 open-cut mines, most of which primarily extract iron ore. When the iron ore is extracted, a small amount of other minerals...
-
Both brass and bronze contain copper. Describe the difference between these two alloys.
-
All organisms need energy in order to grow, reproduce, and perform the activities necessary for survival. Where does this energy ultimately come from?
-
Madison and Tilson agree to form a limited partnership with Madison as general partner and Tilson as the limited partner, each to contribute $12,500 as capital. No papers are ever filed, and after...
-
if you have 2000 boxes of radioactive parent element Repeatium that has a half life 36,000 years long, how long will it take for this amount to be reduced by half to 1,000 boxes ?
-
Consider this study conducted by Kim Mooney (1990) at the University of New Hampshire. SBP was measured at six points in time using a Finapres noninvasive blood pressure monitor: Time 1: When...
-
The specific heat of metals is dominated by the electronic contribution at low temperatures and by phonons at high temperatures. At what temperature are the two contributions equal in rubidium? Note...
-
The figure below illustrates measurements of the specific heat (plotted as C/T versus T 2 ) for a crystalline element. Use what you know about the origins and temperature dependence of the specific...
-
Recent attention has been given to the percentage of successful free throws that resulted in points made in mens college basketball and the number of dribbles the shooter takes prior to the free...
-
The angular displacement, radians, of the spoke of a wheel is given by the expression = 0.8t = t, where t is the time in seconds. a) The angular velocity after 5 seconds (w5). W5 b) The angular...
-
A person travels by car from one city to an- other. She drives for 23.3 min at 89.8 km/h, 12.8 min at 84.1 km/h, 51.9 min at 34.7 km/h, and spends 13.8 min along the way eating lunch and buying gas....
-
The upfront cost for a new machine is $50,000. You project the new machine will generate net revenue benefits equivalent to $20,000 at end of Year 1, $30,000 at end of Year 2, and $40,000 at end of...
-
Refer to the following cash flow diagram: The equation that calculates the uniform equivalent (A) is written as A = X + Y Note: Interest rate (1 %) is calculated per year. Choose the correct term for...
-
Urinary tract infections (UTIS) include infections of the urethra, the bladder, or the kidneys. In hospitals, UTIs are more common in patients whose urinary catheters remain inserted long enough for...
-
For each of the matrices in Exercise I, use the XDX-1 - factorization to compute A6.
-
After looking at the resources, explain what a spirit image is. Why might looking at a god and/or a human in terms of their spirit be helpful if you want to eliminate some of the divisions between...
-
On the basis of the following reaction, state which compound, H 2 (g) or glucose, is the more powerful reducing agent at pH = 0.00. CO,H Eo = -0.45 V + 2H+ + 2e- + H, 1. H,OH CH,OH Gluconic...
-
Living cells convert energy derived from sunlight or combustion of food into energy-rich ATP (adenosine triphosphate) molecules. For ATP synthesis, G = +34.5 kJ/mol. This energy is then made...
-
The basal rate of consumption of O 2 by a 70-kg human is about 16 mol of O 2 per day. This O 2 oxidizes food and is reduced to H 2 O, providing energy for the organism: (a) To what current (in...
-
A popular product manufactured by Party-On! is a festively decorated punch bowl. The company's standard cost system calls for 0.08 hour of direct labor per bowl, at a standard wage rate of $17....
-
commencement speech Now think about that day ahead when you will be receiving your diploma. If you were the graduation speaker at that event, what is the message that you would deliver to your...
-
The Greensboro Performing Arts Center (GPAC) has a total capacity of 7,600 seats: 2,000 center seats, 2,500 side seats, and 3,100 balcony seats. The budgeted and actual tickets sold for a Broadway...
Study smarter with the SolutionInn App