quantum-espresso/TDDFPT/Doc/INPUT_EELS.txt

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*** FILE AUTOMATICALLY CREATED: DO NOT EDIT, CHANGES WILL BE LOST ***
------------------------------------------------------------------------
INPUT FILE DESCRIPTION
Program: turbo_eels.x / turboEELS / Quantum Espresso (version: 6.4)
------------------------------------------------------------------------
Input data format: { } = optional, [ ] = it depends.
All quantities whose dimensions are not explicitly specified are in
RYDBERG ATOMIC UNITS
BEWARE: TABS, DOS <CR><LF> CHARACTERS ARE POTENTIAL SOURCES OF TROUBLE
Comment lines in namelists can be introduced by a "!", exactly as in
fortran code. Comments lines in ``cards'' can be introduced by
either a "!" or a "#" character in the first position of a line.
Structure of the input data:
===============================================================================
&lr_input
...
/
&lr_control
...
/
========================================================================
NAMELIST: &lr_input
THIS NAMELIST IS ALWAYS NEEDED !
+--------------------------------------------------------------------
Variable: prefix
Type: CHARACTER
Default: 'pwscf'
Description: Sets the prefix for generated and read files. The files
generated by the ground state pw.x run must have this
same prefix.
+--------------------------------------------------------------------
+--------------------------------------------------------------------
Variable: outdir
Type: CHARACTER
Default: './'
Description: The directory that contains the run critical files, which
include the files generated by ground state pw.x run.
+--------------------------------------------------------------------
+--------------------------------------------------------------------
Variable: restart
Type: LOGICAL
Default: .false.
Description: When set to .true., turbo_eels.x will attempt to restart
from a previous interrupted calculation. (see restart_step
variable).
Beware, if set to .false. turbo_eels.x will OVERWRITE any
previous runs.
+--------------------------------------------------------------------
+--------------------------------------------------------------------
Variable: restart_step
Type: INTEGER
Default: itermax
Description: The code writes restart files every restart_step iterations.
Restart files are automatically written at the end of
itermax Lanczos steps.
+--------------------------------------------------------------------
+--------------------------------------------------------------------
Variable: lr_verbosity
Type: INTEGER
Default: 1
Description: This integer variable controls the amount of information
written to standard output.
+--------------------------------------------------------------------
+--------------------------------------------------------------------
Variable: disk_io
Type: CHARACTER
Default: 'default'
Description: Fine control of disk usage. Currently only 'reduced' is
supported where no restart files are written, apart from
the 'default' mode.
+--------------------------------------------------------------------
===END OF NAMELIST======================================================
========================================================================
NAMELIST: &lr_control
+--------------------------------------------------------------------
Variable: itermax
Type: INTEGER
Default: 500
Description: Number of Lanczos iterations to be performed.
+--------------------------------------------------------------------
+--------------------------------------------------------------------
Variable: pseudo_hermitian
Type: LOGICAL
Default: .true.
Description: When set to .true. the pseudo-Hermitian Lanczos
algorithm is used. When set to .false. the
non-Hermitian Lanczos biorthogonalization algorithm
is used (which is two times slower).
+--------------------------------------------------------------------
+--------------------------------------------------------------------
Variable: approximation
Type: CHARACTER
Default: 'TDDFT'
Description: A string describing a level of theory:
'TDDFT' - Time-Dependent Local Density Approximation or
Time-Dependent Generalized Gradient Approximation
(depending on the XC functional),
'IPA' - Independent Particle Approximation,
'RPA_with_CLFE' - Random Phase Approximation with
Crystal Local Field Effects.
+--------------------------------------------------------------------
+--------------------------------------------------------------------
Variable: qi
Type: INTEGER
Default: 1.0
Description: The values of the transferred momentum
in Cartesian coordinates (i=1,2,3)
in units of 2pi/a0 (a0 = lattice parameter).
It must be specified as q1, q2, q3.
+--------------------------------------------------------------------
===END OF NAMELIST======================================================
This file has been created by helpdoc utility on Fri Mar 01 17:57:32 CET 2019