Thi Thanh Binh Nguyen

10 Questions 10 Answers 0 Followers

Questions related from Thi Thanh Binh Nguyen

There is intensity relation of fundamental and overtone peaks in raman spectrum?

Hi everyone!How can How can i explain the Raman spectra of carbon material when D peak exists, while 2D peak does not. Could there be a reverse case when in Raman spectra we observe the overtone...

09 September 2017 1,425 4 View

Does stress in crystal influence on NMR relaxation time of of atom nuclear?

As been showed that NMR 13C relaxation time is shorter of 3 oders than one in macro-bulk diamond. The reason for this shortening is attributed to the interaction of paramagnetic centers observed...

04 April 2017 8,829 0 View

How to set the EPR-spectrometer into the regime of registration of absorption signal?

We are working with EPR spectrometer Radio-pan H102. We use ruby in the role of reference. If we determine well regime of registration of absorption signal for ruby, then for studied sample, we...

01 January 2017 1,437 2 View

What formula is able to estimate change of lattice parameter under affect of doped atoms?

For instance, there is a change in lattice parameter of silicon crystal doped with boron atoms. How can estimate the lattice parameter of silicon crystal in this case?. Is there any formula for...

08 August 2016 9,245 0 View

How to estimate concetration of bond responding for result Raman spectra for heterogeneous material?

What information i can get from Raman spectra if the sample is heterogeneous material, like detonation nanodiamond powder? We can get from RS spectra, for exaple, relative concentrations of...

02 February 2016 7,893 12 View

Which raman shift do C-H and H-H bonds have?

Which raman shift do C-H and H-H bonds have? There is diffence in raman shift of C-H bonds in organics like CH4 and in inorganics like graphite? Thanks

02 February 2016 2,958 0 View

What mechanisms give g-factor shift relative to g-factor for free electron in EPR?

The g-factor for free electron is 2,002319. what mechanisms give the shift in g-factor. We have for Diamond the g-factor is 2,0027 for broken bond of C-C. For material from graphite (with...

02 February 2016 8,108 3 View

About the surface defects of diamond?

What is the popular surface defect of diamond? I saw in some papers saying about hydrogenated and oxygenated surface diamond, but these are theoretical. Can you recommend me to any experimental...

11 November 2015 5,187 0 View

What is the origin of Raman spectroscopy peak at 4300 cm-1 in compact nanodiamond?

We study detonation nanodiamond by RS. Samples were recieved in form of powder. Then we press this powder under high pressure 8GPa and T=1800C and got compact detonation nanodiamonds, that then...

10 October 2015 6,245 6 View

What is the role of dislocations in the xrd pattern?

Hi there! In diamond sample with dislocations we saw lateral lines of line(220). These lines are not symmetry by intensity ( for three lines- lateral-central-lateral: 1012-2292-602) and position...

09 September 2015 1,454 4 View