17 Questions 9 Answers 0 Followers
Questions related from Seyyed Amir Abbas Emami
did the plasma frequency just related to free electrons or it can be related to bound electrons ?
16 April 2017 8,407 0 View
The imaginary part of dielectric function related to interband transition. But how can i interpret the negative value of the real part by band theory.
06 April 2017 6,586 2 View
I am trying to calculate dielectric function of a half metal by considering intra-band contribution i.e considering Drude term. But to do this i need relaxation time as an input. However there is...
22 January 2017 3,105 0 View
I am working on a Heusler alloy computationally in the base of DFT. Now i need to specify that what kind of magnetism (itinerant or localized) is dominant.
13 December 2016 5,093 4 View
I know that for atoms and molecules the electronic transition must obey the selection rule. Now is that the case for solids. i will be grateful if anyone introduce any references.
08 October 2016 2,828 2 View
I obtain the dielectric curve versus energy of a half metal compound numerically for spin up and dn separately. Now I want to add them together to obtain total dielectric curve. Is it possible to...
05 July 2016 3,086 3 View
I am trying to obtain transport properties of a half metal material using Boltztrap. In fact this material have different band structure for every spin.Now for calculating transport properties...
30 November 2015 780 2 View
I calculated the contribution of electron in heat capacity of some compounds.Now i want to compare their thermal conductivity which is due to electron contribution.Is there any relation between...
19 November 2015 2,145 11 View
As i know, some potential approximation in WIEN2K require prerequisites (i.e. mBJLDA). Now is the case for PBEsol approximation or choosing only the PBEsol option in initialization step is enough...
22 May 2015 9,603 1 View
As i know to determine cut-off energy, charge leakage must be considered.But we can also control charge leakage by altering muffin tin radius. Now is there any rule, or criteria to calculate...
23 April 2015 8,578 6 View
i want to run for example a kind of heusler compound by wien2k. But in "instgen" part in initialization step i dont know what kind of spin direction is true. for example in Mn2RhSn non of element...
11 April 2015 5,253 5 View
as i know the exchange splitting cause Fe and some element and alloy become magnetize, now is there any relation between exchange interaction and exchange splitting.
23 March 2015 5,064 5 View
Inspite of a high magnetic moment of Fe proportional to Co, Fe is weak magnetic material but Co is strong magnetic material. Does the exchange interaction matter?
19 March 2015 6,291 4 View
As I know conduction electrons are not localized then how can they be at rest in domain state?
06 November 2014 5,364 4 View
I measure the magnetic properties of thin film at two different maximum H field by VSM and obtained different coercivity for each of them.
25 July 2014 3,837 7 View
I want to do an analysis of SEM on thin film cross sections. Is it necessary to polish that thin film?
08 July 2014 6,774 9 View
One of the unites of magnetization is emu/g but in thin film its mass measurement is a problem.
16 June 2014 5,043 6 View
