[Sax-project-users] How to distinguish which is bright and dark exciton with the output of OAS?

[xiaoyinxie]

Dear developers:
Your last reply recommended me to do a optic absorb spectrum calculation to distingush which is the optical gap with spectra.x .
fanally I obtained a file named oas.RPAEXC . I wondering:
How to distinguish which is bright and dark exciton with the output of OAS?
thank you very much !
    Xie Xiaoyin



--

竹直心虚乃吾友，水淡性泊是我师！


在2009-05-06，sax-project-users-request at qe-forge.org 写道：
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>Today's Topics:
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>   1. errors (kazempoor at ph.iut.ac.ir)
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>----------------------------------------------------------------------
>
>Message: 1
>Date: Wed, 6 May 2009 13:26:03 +0330 (IRST)
>From: kazempoor at ph.iut.ac.ir
>Subject: [Sax-project-users] errors
>To: sax-project-users at qe-forge.org
>Message-ID: <15771303.559201241603763627.JavaMail.root at mta.iut.ac.ir>
>Content-Type: text/plain; charset=utf-8
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>
>
>Dear All
>I want to run example3 for TiO2. I make input file and Then I run in serial mode execution ,then following error happen:
>Opening file tio2-gga.export/index.xml
> Reconstructing the main grid
> Writing header
> Writing dimensions
> Writing cell
> Writing atoms
> Writing symmetry operations
> Writing k-mesh
> Writing other parameters
> Writing main grid
> Writing grids for wfc
> Writing band structure
> Writing Eigenvectors
>Serial execution initialized
>Time and date: 10:04:21.044   06/05/2009
>########################################################################################################################
># FROM IOTK LIBRARY, VERSION 1.2.0development
># UNRECOVERABLE ERROR (ierr=1)
># ERROR IN: iotk_scan_attr (iotk_attr.spp:371)
># CVS Revision: 1.19
>########################################################################################################################
> Opening file tio2-gga.export/index.xml
> Reconstructing the main grid
> Writing header
> Writing dimensions
> Writing cell
> Writing atoms
> Writing symmetry operations
> Writing k-mesh
> Writing other parameters
> Writing main grid
> Writing grids for wfc
> Writing band structure
> Writing Eigenvectors
>Serial execution initialized
>Time and date: 10:06:54.125   06/05/2009
> +++
> efermi   8.09833015707835
>########################################################################################################################
># FROM IOTK LIBRARY, VERSION 1.2.0development
># UNRECOVERABLE ERROR (ierr=1)
># ERROR IN: iotk_open_read (iotk_files.spp:487)
># CVS Revision: 1.20
># unit
>file=pp_parameters
>binary=T
>iostat=29
>########################################################################################################################
>Serial execution initialized
>Time and date: 10:07:04.763   06/05/2009
>########################################################################################################################
># FROM IOTK LIBRARY, VERSION 1.2.0development
># UNRECOVERABLE ERROR (ierr=1)
># ERROR IN: iotk_open_read (iotk_files.spp:487)
># CVS Revision: 1.20
># unit
>file=GW_states
>binary=T
>iostat=29
>########################################################################################################################
>Serial execution initialized
>Time and date: 10:07:05.731   06/05/2009
>########################################################################################################################
># FROM IOTK LIBRARY, VERSION 1.2.0development
># UNRECOVERABLE ERROR (ierr=1)
># ERROR IN: iotk_open_read (iotk_files.spp:487)
># CVS Revision: 1.20
># unit
>file=GW_states
>binary=T
>iostat=29
>################################################################################################
>
> Is anyone tell me what do I do?
>Thanks a lot
> Ali Kazempour,Isfahan Uni. Of .Tech, Phys. Dept
>
>
>
>
>
>
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