In ARPES measurements, people say that the laser light cannot cover a wide area of momentum space whereas the synchrotron light can (M. Hashimoto et al., Nat. Phys. 10 (2014) 483). Why is that?
(Figure 3a in the paper is a combination of laser and synchrotron data to plot spectra along the...
Not all elements are superconductors, i think so, or at least we don't know conditions (temperature, pressure) should be for some elements such as copper , gold to become superconductors
You can use Langevin function to describe a hysteresis loop. Exact form of Langervin function you can find out in many textbooks on magnetism.
M(H)=M_s.[\cosh(c(H+\alpha M))-\dfrac{1}{c(H+αM)}]
or use this
M(H)=M_s.\tanh(c(H+\alpha M))
For the code, It is extremely easy, in ten...
Hi, with only high-school knowledge you can answer your questions. PA=OP.cos(PA,OP)=OP.PA/PA.cos(PA,OP)=OP.n0
\phir is phase difference, not path difference
\phir=wavevector×pathdifference
wavevector=2π/λ
Hi everyone,
- Could you explain for me the meaning of "net" in the phrase "small net attraction between electrons" in superconductivity, (or synonym of it)?
- We usually say that BSC theory explains the superconductivity of conventional superconductors, one feature of superconductivity is...
I should change my question. Could you explain for me the number "2" in "2C4(z)" of the D4h character table (first row, third column in the attached figure)? Thanks a lot.
Hi all, I consider a square planar molecule such as XeF4, Xe atom is at the center, F atoms are at the corners of a square. In the character table of D4h group that XeF4 belongs to, I see that there are two C4 axes but I only can find one that goes through the Xe atom and is perpendicular to the...
I'm studying in superconductivity and measure Raman spectra. In fact, a detailed spectrum is not so necessary therefore as above I take a simple theoretical curve (Gaussian) to understand what spectral weight is. From papers I realize that spectral weight is area under the curve (area between...