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Questions related to Condensed Matter Physics
Please suggest me how can I subtract the diamagnetic and paramagnetic contribution from a ferromagnetic sample? is there any correction factor (standard way)? Thank you
08 September 2016 6,338 7 View
I have read Fukui's paper( attached below) and I want to use his method to calculate Chern number on honeycomb lattice. How can I discrete the Brilliouin Zone to fit it's square discretion ?
07 August 2016 9,369 25 View
Multi peak fitting using least-square optimization
06 July 2016 2,061 6 View
Could any one comment on the choice of substrate for thin film deposition using sputtering technique? is it necessary to choose the substrate with same lattice constant as that of material or any...
06 July 2016 7,387 4 View
It is well known that conductivity of insulator increases with electric field because of increased carrier concentration by Poole-Frenkel emission. There is a renowned paper by Murgatroyd dealing...
05 June 2016 3,101 3 View
Dear all, I have checked the ecut and K point convergence of my primitive cell,Using this primitive cell I have made a super cell. My super cellcontain 50 atoms and now I want to doped foreign...
05 June 2016 9,575 9 View
It is known that if we want to calculate some electronic thermodynamic property, like electronic heat capacity Cel at finite temperature, we have to account for temperature dependence of the...
05 June 2016 9,816 1 View
Can anybody please explain what is the difference between self diffusion coefficient and tracer diffusion coefficient? How these quantities are related to the chemical diffusion? what is...
05 June 2016 8,942 4 View
Researchers are very excited for TIs which show some unique properties such as spin momentum locking and large spin-orbit interaction. they say spins are 100% intrinsically polarized in TI. I have...
05 June 2016 1,680 11 View
A+B gives C. Do we need to find the vapor pressure of A and B first or how??
04 May 2016 7,373 1 View
For example a bipolar PNP diode without base electrode, if we sweep the bias from negative bias to positive bias, will this kind of device have current rectifying ability, why ? thanks!
03 April 2016 9,269 4 View
I am calculating elastic properties but the functional used (PBE-GGA) is not giving so close values. is there any other ex/corr functional other than PBE-GGA which gives better result for...
03 April 2016 1,624 5 View
I have try to study the Fullproof refinements for both Bi4Ti3O12 and CaCu3Ti4O12 material. Most of the steps were studied in well. But dont have any idea about the fractional atomic coordinates...
03 April 2016 586 2 View
I am working on Ag doped chalcogenide glasses. I want to have some expert advice regarding the parameters other than defect states, recombination centers, traps etc which, one must have to...
03 April 2016 2,055 2 View
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03 April 2016 7,098 2 View
As we all know, the first order phase transition needs latent heat and the transition peak changed with heating rate. How about the situation in second order transition? Assumed a continuous...
03 April 2016 3,004 3 View
the compound has a soft ferromagnetic nature. In the chi vs T graph, I found that the ZFC curve appears above the FC curve, while mostly the reverse is observed. Is this something interesting?...
03 April 2016 7,268 8 View
Or the problem can be rephrased as: How to extract the tight-binding parameters from first principle calculations? I have searched some articles but all of them just give vague descriptions when...
03 April 2016 1,296 1 View
Is it possible to find both (or either) of conduction band minima and valence band maxima at a point that is not a highly-symmetric point of the Brillouine Zone? If possible, then does it signify...
03 April 2016 4,394 4 View
What does it mean if the phonon dispersion of a structure using a particular unit cell display imaginary modes (at gamma point) but while using a different unit cell does not? Is this indicative...
03 April 2016 7,896 3 View
The Schottky anomaly is well-studied, but it exists in ideal systems without interactions. What is the dependence of specific heat on temperature, if the spin-spin interaction is significant? I've...
02 March 2016 9,687 2 View
Tb proportional to the KV, KV_ is the energy barrier between two easy directions When am increasing field Tb should fall down at low temperatures .is it?
02 March 2016 5,151 3 View
While doing a VASP calculation, I'm getting a total magnetic moment of +1 mu_B in relaxation (due to one magnetic impurity atom). When I do SCF with double the k-mesh compared to relaxation...
02 March 2016 3,854 3 View
how binding energy explain the stability of complex ?
02 March 2016 5,980 8 View