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Questions related from Masoud Berahman
Hi, I want to setup a 4 nodes (each one with 4 cores) Raspberry pi cluster and install quantum espresso on it for simulations. Does anyone know how good it works compare with core i7 PC computer...
12 December 2017 5,070 7 View
hi everyone, I read some notes on peierls transition ( for instance: PHYSICAL REVIEW B 77, 165135, 2008). It is mentioned that : " Peierls was the first to point out that such a system is formally...
06 June 2017 5,118 0 View
Hi everyone, I wonder if anyone knows of any commercial cheap devices that contain comb-shape electrodes with almost 10um separation that I can use for my works? Another point is that If anyone...
01 January 2017 9,011 2 View
Hi all, I deposit 500nm of pt electrode on alumina using sputtering deposition. In very bizarre happening, the pt in each electrode show 1MOhm resistance! when i anneal the system up to 600degree...
01 January 2016 7,776 5 View
Hi everyone, I disperse MWCNT(200mg) in 30mlit H2SO4/HNO3(3:1) solution to form defects on it. After sonication for couple of hour, I add DI water to it and immediately pour it on paper filter....
01 January 2016 8,725 3 View
Hi I want to heat my substrate up to 400C in vacuum around 5E-4 Torr and in argon gas in 5E-2Torr. What are the characteristics of heater that I should consider in these pressures? What are good...
10 October 2015 8,037 15 View
I dispersed 0.2mg/milt SWNT 95% purity (1-2nm OD) in 2% SDS and sonicated for 2h using tip type sonicator with 2W power and 70% cycle. I use a sample of it for Uv-Vis spectroscopy. The result is...
10 October 2013 9,226 9 View