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Related to dielectric fuction plot

2008-10-13
2013-06-05
  • SangHwan Kim

    SangHwan Kim - 2008-10-13

    Dear all,

    I guess someone might ask the same question before.

    My system is a noncentrosymmetric hexagonal insulator.

    So, when its dielectric function calculated, is it possible to calculate the function along its crystal axis such [001] and [100]?

    Best Wishes,
    Sang-Hwan Kim (Postdoc)
    University of Houston

     
    • SangHwan Kim

      SangHwan Kim - 2008-10-13

      I read the manual and found option, "optcomp".

      Is the "optcomp" relevant to do what I want to see?

      It will be great if anyone let me know how the optcomp works.

      Best,
      Sang-Hwan

       
    • exciting

      exciting - 2008-10-14

      Hi Sang-Hwan,

      You can select which components you want using optcomp:

      optcomp
      2 3

      will select the (2,3) component of epsilon and sigma. Use version 0.9.218 because some of the earlier versions had problems with the off-diagonal elements.

      The code always uses eps_11 and eps_12 in the calculation of the Kerr angle. If you need a different component ratio, then you will have to rotate the unit cell into the correct orientation.

      Cheers,
      Kay.

       
    • SangHwan Kim

      SangHwan Kim - 2008-10-15

      Dear Kay,

      Thanks for your help.

      I want to make sure that the (2,3) indicates the (y, z) components of dielectric and stress tensor along the crystallographic axes (b, c).

      Am I right?

      Best,
      Sang-Hwan

       

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