# Atomic, Solid State, Comp. Physics

- Exp. & theo. methods for atoms, molecules, condensed matter
 Meta Thread / Thread Starter Last Post Replies Views Before posting anything, please review the Physics Forums Global Guidelines. If you are seeking help with a... Feb23-13 09:41 AM ZapperZ 1 18,624 There are four miller indices (hklj) for the hexagonal lattice, the third being redudant: l=-(h+k) (1)... T 02:33 PM aaaa202 0 122 So recently I took a blow to my understanding of how hole conduction works. Like many others I had the idea that the... T 12:51 PM aaaa202 0 155 Hello, I am currently in an analytical chemistry course where I am required to write a report on Raman Spectroscopy. ... T 10:18 AM kye 5 2,436 My book has an awful lot of text about these special lattices where everything looks the same from every lattice... Y 02:50 PM M Quack 11 304 I'm reading Kittel and on p101 he says Aren't the first and second part contradicting each other? The first part... Y 07:27 AM DrDu 18 3,358 what property of elementary particles is reason for weak interaction? what I mean is as color charge is reason for... Y 04:21 AM Lapidus 2 370 So let's take a hexagonal crystal. The term: C6 then refers to the 6-fold rotation group. I litterarily have no idea... Dec2-13 03:18 PM M Quack 3 248 So I was looking through the internet on how one could improve the efficiency of a vacuum system (with a diffusion... Dec2-13 03:06 PM M Quack 5 327 Currently we are working on gallium nitride material where I'm required to analyze the time resolved photoluminescence... Dec2-13 11:11 AM Cthugha 1 218 As far as I know, F_ {ext} = d (\hbar k)/dt = d p_{electron} / dt + d P_{crystal} /dt. could one say that \hbar k =... Dec2-13 10:10 AM DrDu 1 450 Attached is a picture of three different electron configurations in a semiconductor. It seems from the author of my... Dec2-13 12:47 AM lindasayy 2 270 Hello all, I'm reading about rectification in a p-n junction. My book says there are two types of current for a p-n... Dec1-13 03:35 PM VortexLattice 0 189 Diagram of the energy levels for the weak field Zeeman effect on 1F - 1D transitions In the emission spectrum how... Dec1-13 02:50 PM ale17 0 220 Hello,Im reading a article about water spliting device in which all necessary charge carriers for water spliting arise... Dec1-13 10:26 AM DrDu 5 258 Hi everyone, Can anyone please explain me the exact difference between the difference between two physical... Dec1-13 09:09 AM ns_phonon 0 218 Consider a photon which is scattered by a crystal elastically. In an elastic scattering we have |k_i|=|k_f| and ... Dec1-13 08:47 AM mfb 11 409 In case of molecular solids does the Intramolecular bonds(bonds within atoms of a molecule) vibrate as they do vibrate... Nov30-13 07:53 PM M Quack 9 358 Firstly, sorry if this doesn't go here please feel free to move it as I was a little confused where to put it. ... Nov30-13 05:24 AM zhillyz 0 192 Hello everyone. I'm am looking for some literature (articles or books) containing information about how is the... Nov29-13 04:27 PM klimatos 1 241 Hello. I have a question regarding the p-n junction. When I look at figure B here: ... Nov29-13 12:17 PM mfb 5 244 what is the physical meaning of first pressure derivative of bulk modulus at zero pressure. if it is ∂k/∂p, i say how... Nov29-13 10:25 AM DrDu 1 231 Hi If we fabricate a heterojunction from TiO and lead phthalocyanine (PbPc is an organic semiconductor) by thermal... Nov28-13 04:27 AM r.sahebi 0 214 i m trying to determine electrical coductivity of a circular solid palette. can anyone please help me how to go about... Nov28-13 03:01 AM lachit 0 219 i am reading about MRI. i have seen several in several textbooks that the angle between the direction of the proton... Nov27-13 05:21 PM tiny-tim 1 272 Hi, I'm looking get a deeper conceptual grip on A&M spectroscopy, particularly what actually goes on between... Nov27-13 03:20 PM drobie 2 347 Hi all, I am looking to do some magnetic measurements for some research (chemistry...) but I'm hoping to get an... Nov26-13 09:41 AM ZapperZ 3 433 When an electromagnetic wave is impinged on a semiconductor and we solve the perturbed Hamiltonian by taking into... Nov25-13 11:26 PM Simon Bridge 3 427 In an indirect transition from the valence band maximum to conduction band minimum, the momentum of electron and hole... Nov25-13 06:40 AM DrDu 5 367 Hi everyone. Suppose we consider an electron in a two dimensional lattice, whose dispersion relation is given by: ... Nov24-13 04:08 PM Einj 6 362 I am by no means well versed in nuclear power, but from my limited exposure I have gathered that a very large portion... Nov24-13 02:53 AM Drakkith 10 4,021 My book notes, that at a given temperature the ratio of the total number of particles in the fermi gas to the total... Nov23-13 09:08 AM hokhani 1 666 Consider the Sommerfeld-model of a metal. We have a discrete but very large number of possible states, bounded by the... Nov23-13 05:26 AM Sonderval 2 502 In my lecture notes, there is a slide about an external field interacting with a system of electron spins. In this... Nov23-13 01:28 AM Simon Bridge 3 435 Say we have an electron traveleing in a crystalline conductor. It can scatter off of defects such as vacancies,... Nov22-13 11:09 AM M Quack 1 463 If the bond length of two atoms is the distance where the force of repulsion is equal to the force of attraction, then... Nov21-13 09:08 PM rokku 1 468 Hi everyone, I tried to study BCS theory but got stuck, here are my notes:... Nov21-13 02:40 PM DrDu 2 587 what do you mean by density of states ? can you please explain to it ? Nov21-13 10:59 AM adjacent 1 336 What is "thermal rounding" Nov21-13 07:41 AM fizikbrat 0 271 When doing photoelectron spectroscopy, you excite a system containing of n electrons using photons to a system that... Nov21-13 06:30 AM arrektor 0 436 I am studying some simple models of how conduction arises on a microscopic level. A central idea is the following:... Nov21-13 02:32 AM DrDu 2 444