[Wien] Lattice Thermal Conductivity and Phonon dispersion

2017-05-01 Thread yasir javed
Hi every one, I am interested to find out the phonon dispersion and the
lattice thermal conductivity using WIEN2k. I have used phonopy code to
calculate the dispersion curve but too many errors have been
encountered.Even if I am successful in getting the dispersion curve how can
I get the lattice thermal conductivity from that ?? Kindly guide me. Thanks

Regards
Yasir Javed (Doctorate student, PIEAS Pakistan)
___
Wien mailing list
Wien@zeus.theochem.tuwien.ac.at
http://zeus.theochem.tuwien.ac.at/mailman/listinfo/wien
SEARCH the MAILING-LIST at:  
http://www.mail-archive.com/wien@zeus.theochem.tuwien.ac.at/index.html


[Wien] Phonon Density of States

2017-01-12 Thread yasir javed
Hi everyone. I am using WIEN2k code for my calculations for sometime now.

The experts of WIEN2k kindly guide me regarding the following queries:
1- What is the information we can get from the phonon density of states?
Can we get to know about the stability of a material?
2- How can I get the phonon density of states using WIEN2k?
3- Is there any other package need to be installed? If so kindly guide me
to the installation and usage of that.

Thanking you in anticipation. Waiting for your helpful comments.

(Yasir Javed)
Doctoral student
Pakistan Institute of Engineering and Applied Sciences,
Islamabad, Pakistan
___
Wien mailing list
Wien@zeus.theochem.tuwien.ac.at
http://zeus.theochem.tuwien.ac.at/mailman/listinfo/wien
SEARCH the MAILING-LIST at:  
http://www.mail-archive.com/wien@zeus.theochem.tuwien.ac.at/index.html


[Wien] Elastic Constants of Trigonal Systems

2016-09-21 Thread yasir javed
I am new to WIEN2k. I am in need for help from the experts in finding the
elastic constants.

I am interested in finding out the elastic constants of trigonal systems by
WIEN2k.

There are packages available for hexagonal, tetragonal, orthorhombic and
cubic systems. What should I do for Trigonal systems.


I have used the hexagonal package but I have obtained quite large values
for one constant and very large negative values for another.

One of the plot also shows oscillations and it is not correct.

Kindly guide me.


Regards

Yasir Javed

Department of Metallurgy and Materials Engineering (DMME),

Pakistan Institute of Engineering and Applied Sciences (PIEAS)

Pakistan
___
Wien mailing list
Wien@zeus.theochem.tuwien.ac.at
http://zeus.theochem.tuwien.ac.at/mailman/listinfo/wien
SEARCH the MAILING-LIST at:  
http://www.mail-archive.com/wien@zeus.theochem.tuwien.ac.at/index.html