Dr A K Sivadasan

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Questions related from Dr A K Sivadasan

How is the molecular Group theory helping to identify the allowed Raman modes for a particular primitive cell ?

How the molecular Group theory is helping to Identify the allowed Raman modes for a particular primitive cell ?? How we can predict the allowed Raman modes for different polarization conditions...

26 December 2015 9,676 3 View

In case of 100 nm Gold nanoparticle, what will be the transmission and absorption wavelengths? How plasmons will affects NSOM image of single Au NP?

In case of 100 nm Gold nanoparticle, what will be the transmission and absorption wavelengths? How the plasmons will affect NSOM image of single Au NP? What will be the effect of plasmons for a Au...

18 December 2015 3,489 4 View

May I know how to find out piezoelectric coefficients (d33) for Wurtzite AlGaN microcrystals using PFM?

I want to know how to find out piezoelectric coefficients (mainly d33) for Wurtzite AlGaN microcrystals using PFM? 1. What is the exact mechanism of AFM based piezoelectric measurement set...

29 August 2015 3,715 2 View

What will be the difference in XPS spectra For AlN, GaN and AlGaN with respect to individual Al, Ga and N atoms or molecules?

may I know , what will be the difference in XPS spectra For AlN and AlGaN. If I am taking XPS from Al, Ga and N alone ..and compare with its binary and ternary compound will it make any difference...

20 July 2015 8,609 2 View

Synthesis of LaVO3 from La2O3 and V2O5

How we can synthesis Lanthanum Vanadate (La2VO3) by taking La2O3 and V2O5 as precursors?

01 January 1970 4,322 1 View