Solid state Definition and 315 Threads

Hi all, Edit: Here's the question, in case you guys don't have the book: In the Drude moel the probability of the electron suffering a collision in any infinintesimal interval dt is just dt/T. a) show that an electron picked at random at a given moment had no collision during the...

i am taking advanced solid state course, and my professor use marder textbook, and his lecture notes are just like complete copy of marder's textbook. i myself find marder's book very confusing, even things which i already understand are presented in complicated way. i feel i cannot absorb...

It seems that amps using vacuum tubes are becoming more and more popular with musicians these days. They're a bit expensive, at least the models I've seen, and the claim is that these vacuum tube amps produce a better sound or a richer sound. I was wondering if there was a physics-based...

What is the symbol for a solid state relay? I've been using mechanical relay representations in my documentation and just writting next to it "solid state." I don't like doing this, because it implies that the relay is an inductive load, which it isn't... My thought is that it should...

Hi folks, I recently posted about one facet of a bizarre argument I've (stupidly) involved myself in in the solid state forum. Perhaps someone can help me out with the entropy side of things here. Basically, the guy I'm speaking to has some bizarre ideas about a way to use a (single, or...

If we have a molcule of 2 atoms, and the potential energy between them is given as a funcion to the distance between them r: U(r)=-A/(r^2)+B/(r^10) Where A,B are constants, How can we calculate the FORCE and ENERGY required to completelty separate them? and how can we calculate the force...

In solid state physics, a proof of bearing energy gaps in one-dimesional dispersion relations is given by a quantum-mechanical perturbative approach applied to the level belonging to two bands at once, that is twice degenerate. For example for k=pi/a there's one of these levels between n=0 band...

:rolleyes: Is a conductive movement of an electron inside a band a particular infraband non-radiative transition?

What are the solid state electronics devices? What are they used for?

Im just sat here in the "Learning Grid" of my University studying for my Physics in Medicine and Solid State Physics exams in 3weeks. It isn't much fun but what's even worse is the prospect of studying for my other courses i have exams for in the next 2months: Quantum Mechanics I...

Diode laser emission dangerous to eye - Why? Why is a solid state laser diode pen which emits eletromagnetic radiation in the form of a constant range of undulating photons harmful to the retina? In other words, (Did I use the technical terms right? "Undulated" means 'wavelength'...

I've been doing a ton of research recently on how lasers work. Basically a laser is actually L.A.S.E.R which stands for "Light Amplified of Stimulated emitted radiation". A laser is cohernet, which means it is only its wavelengths are not fixed. Low power red lasers are often known as...

Minor in Solid State Physics? Hi, I am an electrical and electronics student. I do plan to follow minor in Solid State Physics. What do you think? Is it worth?

Greetings all this is my first post in this forum. I've got a Solid state physics homework question (i know that the intent of this forum is not to do homework, all i want is guidence in the correct direction not the answer itself.) Any way here it is: A conduction band electron in silicon is...

I had to pass an exam of solid state but i had some doubts with this problems a)let be a pure semiconductor in two dimensions then they ask you for the density of electrons...would you use the formula n**2=Nc*Pv*Exp(-Eg/K2T) ?... another question is to obtain the density of holes in the...