8 Questions 13 Answers 0 Followers
Questions related from Masoud Berahman
Hi, I got confused and I think it is better for me to ask it here, I want to find the effective mass in different directions in real direct space (x, y,z), but the formal effective mass is defined...
27 May 2018 3,349 3 View
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...
28 December 2017 3,852 7 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...
06 January 2017 7,715 2 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....
26 January 2016 5,487 3 View
Hi, I want to cool down my sample during sputtering. I can not use any liquid based work due to no fit through available in the system. I try to use thermo-electric coolers, however, i got into...
13 January 2016 6,048 5 View
Hi, I want to calculate optical properties of doped graphene using Yambo code. However, it mentioned that due to metallic structure the code need drude plasmon, how can i calculate it? thanks
23 November 2015 7,351 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...
23 October 2015 4,701 14 View
We have a sputtering system equipped with quartz thickness measurement which the quartz is using a cooling circulate using water (normal pressure without pump). Any time I use a turbo pump to...
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