19 Questions 41 Answers 0 Followers
Questions related from Syed Ali Hassan
A 20 fs FWHM transform-limited Gaussian pulse, with carrier wavelength of 1050 nm, goes through 1 meter of fused silica. What is the FWHM pulse duration at the end?
11 November 2018 6,429 2 View
Is there any other ways to estimate the crystalite size because Scherrer's equation to determine the crystallites size is not recommended. I am looking answer for Single crystalline oriented...
01 January 2018 5,248 3 View
So my question is related Interfacial enegry calculation.If i have MgO substrate and we deposited Pt thin films on it.. I need to know the MgO surface energy before deposition? is there any...
03 March 2017 5,546 3 View
Mostly ceramic substrates (MgO, STO, LaAlO3 etc..) are used to deposit transition Metals (Pt,Ag,Au,Cu) for the electrochemical applications. Why Silicon Substrate can not be used for such...
03 March 2017 7,689 7 View
I Did some heat treatment with MgO substrates with (100), (110), (111). I observe significant changes on MgO (100) surface morphology (atomic steps), but other two substrate remain unchanged....
03 March 2017 4,777 3 View
Pt films deposited on MgO (110) and (111) were grown , as a result no elongated features and traces on MgO (110) and (111) were observed . Instead it was seen that a disordered 3 dimensional...
01 January 2017 2,183 4 View
I did XRR analysis to calculate the thickness of thin film. can any body explain what is critical angle in XRR measured graph. and how to measure this critical angle???
12 December 2016 4,799 3 View
The intensity of the Graph is increasing with respect to temperature. If i plot a graph with respect to Area of that peak and temperature I observe also increase in area. what does that mean? If...
11 November 2016 7,564 11 View
If I know the thickness of the film (15nm). How I can justify about the deposition rate of the material ? Which formula or which method?? Please help
11 November 2016 1,922 5 View
For example in NiFe thin films, if the concentration of Ni is change by wt% 33,40,50,60 in Fe .. what are the possible factors that changes the surface morphology (topography) of the thin film for...
11 November 2016 2,988 7 View
please ans
11 November 2016 8,299 2 View
Can somebody explains about why bcc lattice does not have 100 peak in xrd?
09 September 2016 4,593 4 View
During Pulse Laser deposition of Pt thin film, I observe the XRD intensity continuously increasing. The number pulses are same for each deposition (which means rate of ablation is same for all...
09 September 2016 3,150 8 View
I have deposited Pt (platinum) by using PLD (pulse laser deposition) on MgO substrate. I change the substrate temperature form RT to 600c , I observe a change in FWHM (which was increasing with...
09 September 2016 10,017 23 View
Pt thin films grown on MgO substrate from 100C to 600C , we observe the change in lattice parameter of Pt. like on 100C it was 3.94A' and 200C 3.95A' at 500C its was again at 3.94A' and at 600C it...
09 September 2016 5,154 5 View
I deposited the thin films of Pt on MgO with orientations 100,110,111 . By doing AFM I observe Granular structurs on MgO 100, then by keeping the deposition parameters same, I observe Island...
08 August 2016 6,587 4 View
Any body know that how to clean the Substrates of MgO and Si with onside Polished. There are several method that i know about like put the substrate in Nitrogen environment for long duration,...
03 March 2016 9,075 11 View
I need to calculate the thickness of Ni Thin films by using XRD refractometry option. Please let me know what is the method ??
02 February 2016 8,297 3 View
for calculation need references
03 March 2015 7,191 2 View
