I want to write a octave code(It can be another language I want to know how should I think to write a such a code ) to obtain graphene structure like in the figure.
This code should give me a graphene sheet which in size I want when I enter the position of the atoms in the lattice.I think that...
I am just finishing my A.S. in Electrical Engineering Tech. and am looking into bachelor programs. I want to double major in EE and physics. At the University of Iowa they have an applied physics program with a concentration in solid state electronics. I was wondering if solid state...
I have to take a graduate level statistical mech course and a solid state physics course next sem (starting in feb).As I will be dealing with these topics for the first time, I'd like to like to prepare myself for them by learning/revising the math involved in them. What are the mathematical...
I have some qualitative questions about the relation between band structure, density of states, and Fermi energy (or Fermi level).
1) Say you have a given electronic band structure (energy as a function of k) obtained by any method. How do you relate this to the Fermi energy (or Fermi level) ...
How to understand that Bloch wave solutions can be completely characterized
by their behaviour in a single Brillouin zone? Given Bloch wave:
\begin{equation*}
\psi_{\mathbf{k}}(\mathbf{r}) = u_{\mathbf{k}}(\mathbf{r}) \exp (i\mathbf{k}\mathbf{r})
\end{equation*}
I can write wavefunction for...
I'm reading M. Omar Ali's Elementary Solid State Physics and in it, in Subsection 1.4 The Fourteen Bravais Lattices and the Seven Crystal Systems he says that "..., but one cannot place many such pentagons side by side so that they fit tightly and cover the whole area. In fact, it can be...
Hello,I'm new here and this is my first post.
I am a freshman electronics and communication engineering student.I didn't study any quantum mechanics or solid state physics before(not in high school).
But for my first year course i need to study solid state physics.The books we are suggested to...
Can you suggest books or any resource that will help understand DOS graph discussions in journal articles? I am reading DFT results. I try very hard to understand how their discussion is related to DOS graph presented, but I can't no matter how I reread it over and over again. :frown...
I'm looking to find out what is degenerating in a semiconductor that is being bombarded with beta particles. I know in the low energy tritium beta cells. There is less degeneration because less energy. I know that current is formed by the beta particle making pair holes in the mobile band. Is...
I need to find the total number of states in a 1D monatomic lattice using the density of state equation g(ω), and I am having a hard time doing so. I'm fairly certain all I need to do ins integrate it, but this is proving to be a greater challenge than I thought it would...
Taken from http://dao.mit.edu/8.231/BZandRL.pdf
BCC
In real space, it has a simple cubic lattice with one basis in the centre. Total number of atoms per unit cell = 2. Volume of primitive unit cell is then ##\frac{1}{2}a^3##.
In reciprocal space, BCC becomes an FCC structure. It has a simple...
Homework Statement
The polyacetylene chain is a 1D chain of Carbon atoms with single bonds and double bonds in succession. Spacing for single bond is ##a_s = 0.144~nm## and spacing for double bond is ##a_d = 0.136~nm##.
Describe the structure using a "lattice" and a "basis".
Sketch the...
Homework Statement
Ok, don't get angry with me. The original problem is from Solid State Physics but my problem is very well in "Introductory physics". Here is the problem:
The chain consists of molecules, which has three atoms, each with mass ##M##. Spring constant between the atoms inside...
In solid state physics, I learned that the velocity of a bloch electron is ##\frac{\partial E(k)}{\partial k}##, where ##E(k)## is the energy dispersion. This formula is derived on the basis of the assumption that electrons is a wave packet of bloch state in solids.
However, I have a question...
Hi all, thank you for your attention
I graduated with a B.S. in Physics just 2 months ago. I went to an American public school with good reputation in Physics. I sent in my applications for the Fall, 2015 Ph.D application cycle last fall. However, I failed to get into any PhD programs, mainly...
Homework Statement
(a) Find debye frequency.
(b) Find number of atoms.
Homework EquationsThe Attempt at a Solution
Part(a)
[/B]
Density of states is given by
g(\omega) = \frac{3V\omega^2}{2 \pi^2 c^3} = N \left[ \frac{12 \pi \omega^2}{(2\pi)^2 n c^3} \right] = 9N \frac{\omega}{\omega_D^3}...
Homework Statement
(a) Show law of mass action.
(b) Find dopant concentration and hole concentration.[/B]
Homework EquationsThe Attempt at a Solution
Part(a)[/B]
Bookwork.
Part(b)
Letting the doping concentration be ##D##, we have:
D = n - p
For ##I = n_{intrinsic} = p_{intrinsic}##, we...
Hello,
In which way nano and solid state physics improve technology?
where we use statistical physics more in nano physics or particle physics?
where we use quantum mechanics more in nano physics or particle physics?
which major is more enjoyable nano or particle physics?
which major is more...
Homework Statement
[/B]
(a) Why does input intensity affect gain?
(b) Derive the expression
(c) Find saturation intensity in terms of input intensity
Homework EquationsThe Attempt at a Solution
Part(a)
Consider a narrow band radiation as an input, where its bandwidth is much smaller than...
Homework Statement
[/B]
ZnS crystalizes in the B3 type structure with the space group is F¯43m. This structure is shown below and can be regarded as the bi-atomic form of the diamond lattice (F d¯3m). Upon applying a force along the [1,1,1] direction, the crystal might experience a change in...
I am looking for a robust text on stress analysis using photoelasticity.
Razumovsky's "Interference-Optical Methods of Solid Mechanics" has been the best looking one so far, but with a >£100 price tag with only Chapter 1 (=30 pages) useful to me, I could do with finding an equally robust...
Homework Statement
A think film of ErAs(rock salt structure, a=0.574nm) is grown on top of a thick GaAs (Zn-blend structure, a=0.565nm) substrate. The substrate orientation and the film growth direction are both <001>. For very thin films, the ErAs is tetragonally distorted such that its...
Hi there,
I am new to electron theory, and have a question regarding fermi energy. The book I am reading plots the Fermi energy distribuiton function vs Energy for T=0 ( upper right graph in pcture) and for T not equal to zero. The book says that, when T does not equal zero, the decrease in the...
Homework Statement
https://fbcdn-sphotos-c-a.akamaihd.net/hphotos-ak-xpf1/v/t1.0-9/10980752_10204928958360361_5256945004598578166_n.jpg?oh=7fd9defb14be9a9befa0cf5032def429&oe=55576A2C&__gda__=1431534931_425423ae11039486a001b049726e1b11
Homework Equations
Charles Kittel's book on Solid State...
Can anyone please recommend sources for questions and problems with soultions related to Solid State Physics I course.
For all range of topics from crystal structures up to semiconductors introduction (by Kittel).
Thank you.
Hi. I plan on being an exchange student at Berkeley next year. I cannot find any course description for this course, I only find the description for 141A+141B: http://general-catalog.berkeley.edu/catalog/gcc_list_crse_req?p_dept_name=Physics&p_dept_cd=PHYSICS
141A. Solid State Physics. (4)...
I would like to know what is the difference between a solid state physicist and a materials engineer. I mean, do they end up doing the same kind of job or research? If they both have the same purpose, how can they do it having different backgrounds? Which preparation is better for the purpose?
Hey,
I'm having some trouble understanding why the energy changes here between the blue and red paths (see attached image), it's representing state of an electron in a square lattice crystal. Like mathematically I can see it because obviously plug and chugging the different values k in E(k)...
Hi,
I would need a huge amount of assignments in solid state physics with solutions.
I found assignement from other universities. Any book reference?
Thank you
What are some recommended resources with good problems (and preferably solutions as well) on Solid State Physics at the level of Kittel? I'm aware of Yung-Kuo Lim's "Problems and Solutions on Solid State Physics, Relativity and Miscellaneous Topics" which has graduate qualifying exam questions...
The whole problem I'm doing here is not even really relevant, so I won't go too much into it...I'm told to find an atomic form factor given some certain conditions, and I do a big gross integral and got this:
$$f=(\frac{4}{4+(a_oG)^2})^2$$
where \(a_o\) is the Bohr radius and \(G\) is the...
Forgive me for asking this question if the answer is obvious. The truth is I have a BENG in electrical engineering and want to know the differences between the two.
From an engineer's perspective its about knowing what you can do with the devices in a useful way and design, analyze and build the...
I am an undergrad and for the most part I am looking for a good physics class to take. I am considering taking solid state physics at the level of Kittel as its one of the only physics classes offered at the undergrad level this semester that I haven't taken. I haven't taken quantum mechanics...
hello everyone,
i am looking for a comprehensive link for the topic above as i want to do some research on various applications of x-rays in solid state physics.
its a personal research but i have some materials but i still feel i need a whole lot more.
Any form of help would be appreciated...
Homework Statement
In Kittel's 'Introduction to solid state physics' (8th ed.), on page 167, it says "The wave functions at the Brillouin zone boundary ##k=\pi/a## are ##\sqrt{2} cos (\pi x/a)## and ##\sqrt{2} sin(\pi x/a)##, normalized over unit length of line."
Here I cannot understand...
Homework Statement
How to derive equation (22) on page 31 of Kittel's Intro to Solid State Physics 8th edition.
The equation is: 2\vec{k}\cdot\vec{G}+G^2=0
Homework Equations
The diffraction condition is given by \Delta\vec{k}=\vec{G} which from what I can surmise is the starting...
Homework Statement
The atomic mass of Niquel is 58.7 amu (atomic mass unit), and it's density (at 90ºC) is 8.86 g/cm³.
(a) Find the distance from one atom to the closest one from him.Homework Equations
1 amu = 1.66053*19⁻²⁷
The Attempt at a Solution
I started by finding the number of atoms...
Homework Statement
NaCl (a0 = 5.64A° ), NaBr (a0 = 5.98A° ) and KCl (a0 = 6.30A° ) all have the same structure, which
is the NaCl structure.
(a) Assuming the spacings are determined by the ionic radii of the relevant ions, what would value
would you expect for the lattice constant of...
Hi,
Could someone explain how to calculate the probability that two substitutional dopants will reside in adjacent lattice sites.
For example, given a dopant concentration of 5% and a crystal structure in which each lattice site/atom is coordinated to 8 others what is the probability of...
1. The problem statement
The potential energy between two ions is
u(r) = -α/r2 + β/r8
Determine:
(i) The intermolecular distance ro for which the potential energy is minimum
(ii) The inter-atomic distance for which the potential energy is zero is
R= (2)-1/6ro...
Solid State Physics
Quantum mechanics and quantum nature of solids, properties of materials. Band theory in metals and semiconductors. Conduction processes, the p-n junction, transistors and other solid state devices.
Field Theory
Review of vector analysis and coordinate systems...
Homework Statement
The lab is attached. I've also attached the pre-lab just for the diagram.
Homework Equations
The Attempt at a Solution
Can anyone think of some good errors for this lab?
We ended up with ~80% error.
I've thought of two:
1. Adjusting the potentiometer so...
Hello,
I'm working on a poster and senior thesis in materials science research and need to draw schematic diagrams of a few objects including:
-a PLD chamber
-Thin films
-XRD
-SEM
-energy diagrams
-a sin wave
I've downloads inkscape and have tried to draw in powerpoint so far. Are...
Somehow I missed my registration notification for Fall and the E&M and Mathematical Physics classes are full. I am an astrophysics major. I wanted to take nuclear physics, but it will not be offered again until Fall 2014. I will be taking thermodynamics in the fall, but I am wondering if I...