py nodes online with Winfy

We have hosted the application py nodes in order to run this application in our online workstations with Wine or directly.

Quick description about py nodes:

PY-Nodes is a Python 3 based code designed for searching nodes (bands-degenerate points) associated with two or more bands in a given material using the first-principle approach. This code is helpful in efficient searching of the nodes present in the topological semimetals such as- Weyl semimetals, Dirac semimetals & nodal-line semimetals. The code is presently interfaced with the WIEN2k package. The algorithm of the code is based on the Nelder-Mead�s function-minimization approach. The code minimizes the function f(k), which is de?ned as sum of the absolute energy difference of the adjacent pairs of bands at a given k-point.


Please cite the paper mentioned below while using the PY-Nodes code for your research.

V. Pandey and S.K. Pandey, Comput. Phys. Commun. 283, 108570 (2023).

The link of the paper: https: //doi.org/10.1016/j.cpc.2022.108570.

Features:

• Efficient searching of band-touching points in the first Brillouin zone of any given material.
• First principle approach is used.
• Band-touchings associated with any number of bands can be searched.

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