Q. What is Materials Square (MatSQ)?
A. See About .

Q. What can I do using MatSQ?
A. Basically, MatSQ can do everything DFT & LAMMP can do. For more information, see appendix .

Q. I want to use Materials Square. Could I get help?
A. Yes, Please contact us. You can contact us using chatbot or e-mail.

Q. How can I register?
A. Click . Fill out the input field and click OK. If you're having trouble with this process, Please contact using the chatbot. We'll answer as soon as possible.

Q. I couldn't sign in (login).
A. Please contact using the chatbot. We'll answer as soon as possible.

Q. I can’t download my data file.
A. The file size of the job data seems to be large. Please wait for the download to begin.



Q. What is the fee for use?
A. 9 $ per hour. The fee be charged in seconds based on server usage. You should recharge your credits first, and the usage fee will be withdrawn from your credit. You couldn't submit a new job if the credits under 1 $.

Q. How can I charge my credit?
A. Click $ icon at the top of MatSQ. Write credits quantity, and click . Then the payment window will be appear.

Q. Can I process it as a research grant?
A. Yes, please contact us.



Q. What is DFT?
A. see appendix .

Q. I want to do DFT calculation. What should I do?
A. MatSQ uses 'Quantum Espresso' as DFT calculate package. You can get useful information by reading other text in MatSQ Documentation or QE official site.

Q. I want to do MD calculation. What should I do?
A. MatSQ uses 'LAMMPS' and 'Forcefield' when conducting MD calculation. You can get useful information by reading other text in MatSQ Documentation.

Q. I want to know how calculate Energy/Density of states (DOS)/charge density(or Differential charge density)/Band structure/Molecular dynamics (MD) using MatSQ.
A. You can do that by adding a workflow template at the top of the Work page . See tutorial video or work page document . For more information of each module, see Modules .

Q. My QE module shows crash message. Why had this message shown?
A. Your DFT calculation failed. Please see Troubleshooting .

Q. I want to use a specific pseudopotential (PP) file. How can I change the pseudopotential in the Quantum Espresso (QE) simulator on MatSQ?
A. User-specific pseudopotential file function is not supported now. MatSQ use SSSP pseudopotential file default. After 2018-12, we updated SSSP file version 0.7 to 1.1. Select pseudopotential file at near the input text area.

Q. My job had stopped that I want to restart this. How can I do that?
A. See 'restart' section .

Q. I want to revive my deleted job.
A. You could use two method,
1. Click 'Create new Work with this Job' at the data page.
2. Add 'Job loader' module in the work page. For further information, see here .

Q. The visualizer became white. What should I do?
A. This problem somtimes occur, it seems to be due to lack of memory. Try delete unnecessary structrue builder module, and refresh.


This page has been created by SimPL. Last update: January 4 2019