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age 27
visits member for 3 years, 7 months
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Physics Graduate student


Jul
13
comment Why are heavier nuclei unstable?
@ragnar sorry but i could not relate the analogy given to superconductivity. I would be grateful if you could give reference to this as it is interesting that nuclea physics and condensed matter physics are related
Jul
12
comment what is the source of nonlinear behaviour of semiconductor transistor?
@CuriousOne So is it safe to say that the exponential dependence of the carrier concentration on the chemical potential is the source for the intrinsic non-linear behaviour in a semiconductor transistor and that the linearity is forced onto it by feedback mechanism?
Jul
12
comment what is the source of nonlinear behaviour of semiconductor transistor?
@Qmechanic I too felt the same as above comment but I wanted to compare this non linear behaviour with that in a spin based transistor. Hence I posted in physics stackexchange
Jul
9
comment Why is planar geometry preferred to observe ordinary Hall effect?
thanks @BebopButUnsteady
Oct
27
comment Study Quantum Physics
@Hal Swyers thank you for giving insight into importance of heat equation in understanding the Schrodinger equation. I wish I could get free e-copy of this book "who is fourier" else i will try buying it.
Oct
21
comment Reference for understanding characteristic length and time scales in a system (in particular electronic transport)
thank you for such informative reply:)
Oct
21
comment Reference for understanding characteristic length and time scales in a system (in particular electronic transport)
@DavidZaslavsky thank you for the suggestion. I will keep that in mind.
Oct
10
comment Derivation of Schrodinger equation for a system with position dependent effective mass
I have come across this equation in Hamaguchi on page 347 <books.google.co.in/…;
Oct
10
comment Derivation of Schrodinger equation for a system with position dependent effective mass
thank you for the answer but what i am asking is how to derive it within the regime of effective mass approximation and that too when the mass has a spatial profile... for example in the case of Al/GaAs high electron mobility transistor we have a position dependent mass.
Sep
18
comment Why is the valence band maximum at the gamma point in the bandstructure view of dispersion relation?
@genneth: I think the answer to the question lies in your hint that systems with inversion symmetry have band extrema at the gamma point. For example, graphene has no inversion symmetry. I will check it out and get back to you.
Sep
18
comment Why is the valence band maximum at the gamma point in the bandstructure view of dispersion relation?
@ron maimon I am asking about the structure of the top most filled band, the valence band. In cases like graphene occurrence of band maximum is not at the Gamma point.