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Questions & Answers (1-20 of 60)

  1. 2% biaxial strain Ge, promen at the Gamma point

    Closed | Responses: 0

    Dear all, When I simulate the bandstructure of Ge with high strain (2%), I get a discontinuity at the Gamma point, and therefore the effective masses are not correctly calculated. Can you...

  2. 8,10 nm thickness UTB with default values gives error

    Closed | Responses: 1

    When I tried to simulate UTB and double gate devices with 10 nm silicon thickness by using default values gives error…

    Thank you

  3. Abnormal Termination of DGMOS UTB Self-Consistent Simulation

    Closed | Responses: 0

    When running an Ultra-thin body MOSFET simulation with the job type set to “Calculate the UTB band-structure self consistently

  4. Abort

    Closed | Responses: 2

    To terminate a simulation, the abort button is not working.

  5. Any cahnce you can include the DOS from the E(k) curves for a 1D Kronig Penny model?

    Open | Responses: 1

  6. atomic coordinates file should have the right file extension *.pdb so one can read it into a local visualizer right away

    Open | Responses: 2

    The ability to ownload a coorinate file is existing now. However the file comes back as a t *.txt file. It if ame back with the right extension, my local machine could immediately use the...

  7. Band structure error in InAs UTB devices

    Closed | Responses: 0

    Dear Sir/Madam,

    first of all, I would like to thank you to have developed and made ​​available online this tool. Currently, I’m interested in the study of the band structure of...

  8. biaxial strain in bulk produces no results

    Open | Responses: 3

    Starting from scratch with a new simulation I am just turning on bi-axial strain in the bulk simulation mode and I get not simulation results.

  9. bulk bandstructure: k-axis scale

    Open | Responses: 2

    It seems that the bulk bandstructure shows E-k along L->Gamma->X->UK->Gamma. If so, the k-scale does not seem to be correct. The distance between Gamma and X appear to be...

  10. Bulk Si eff. mass vs. biaxial Strain

    Closed | Responses: 2

    Hello there,

    I was simulating Strain sweep on Bulk Si. I applied biaxial strain from -0.015 to 0.015 in

  11. Can not see any results in the drop down menu.

    Closed | Responses: 0


    When I simulate the tool e.g. UTB default simulation, after completion of the simulation I can not find any outputs .In the results drop down menu input deck, backend code log,...

  12. can we simulate the band structure of graphene?

    Closed | Responses: 1

  13. code crashes when 8nm triangular cross section nanowires are entered

    Open | Responses: 3

    code crashes when 8nm triangular cross section nanowires are entered crashes both in the electronic structure calculation as well as charge-selfconsistent calculation. Error message in the...

  14. Confinement Effective mass

    Closed | Responses: 1

    Dear Admins, I am interested in calculating the effective mass along the confinement direction for nanowire geometries. Can this be done using Bandstrlab or is there another tool for it? Thanks...

  15. Could k be expressed by kx ky kz?

    Open | Responses: 2

    I do not really know the meaning of “effective k” in the result figure.(the square root of kx ky kz?) This tool can show a table of k-E. Is this possible to show the “kx ky kz...

  16. differences between sp3s* and sp3d5s* models

    Closed | Responses: 1

    In this version of bandstrlab, the sp3s* model is not implemented (there is only one model, i.e. the sp3d5s*). It would be interesting to have that model to compare the differences between the...

  17. Does a positive value of epsilon correspond to tensile strain?

    Open | Responses: 1

  18. Does simulation assume 300K?

    Closed | Responses: 1

    Is it possible to calculate band structure at different temp?

  19. Doping the Nanowire

    Closed | Responses: 0

    Hello, I’m beginner at using this tool. would you please let me know that we can dope the nanowire (channel) itself? thanks

  20. effective mass

    Closed | Responses: 8

    I was simulating a rectangular nanowire with the default parameters. It generated extremely small (0.0001) effective masses for band 1 valley 1. Please have a look. Also, we need to have the..., a resource for nanoscience and nanotechnology, is supported by the National Science Foundation and other funding agencies. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.