FermiSurfer

Official Resources

• Homepage: https://fermisurfer.osdn.jp/
• Documentation: https://fermisurfer.osdn.jp/en/_build/html/index.html
• Source Repository: https://github.com/mitsuaki1987/fermisurfer
• License: MIT License

Overview

FermiSurfer is a visualization tool for Fermi surfaces. It can display Fermi surfaces with color plots of physical quantities (such as Fermi velocity, superconducting gap, spin character) on the surface. It is designed to be lightweight, fast, and easy to use, supporting input from major first-principles codes.

Scientific domain: Electronic structure visualization, Fermi surfaces
Target user community: Condensed matter physicists, DFT users

Capabilities (CRITICAL)

• Fermi Surface Visualization: 3D interactive plotting
• Property Mapping: Color mapping of scalar quantities on the Fermi surface
• Stereoscopic View: Anaglyph 3D support
• Nodal Lines: Highlighting nodal lines and points
• Input Support: Native formats for Quantum ESPRESSO, interacting with VASP via tools
• Cross-Platform: Linux, macOS, Windows

Sources: FermiSurfer documentation, Comp. Phys. Comm. 239, 272 (2019)

Inputs & Outputs

• Input formats: .frm (FermiSurfer format), BXSF (XCrySDen format)
• Output data types: Screen capture, interactive view

Interfaces & Ecosystem

• Quantum ESPRESSO: fs.x post-processing tool
• VASP: Can be converted via vaspkit or ifermi
• AkaiKKR: Supported
• OpenMX: Supported

Workflow and Usage

1. Perform SCF/NSCF calculation.
2. Generate Fermi surface data (e.g., using fs.x in QE).
3. Run FermiSurfer: fermisurfer fermi_surface.frm
4. Interact with the GUI to rotate, slice, and color-map.

Performance Characteristics

• Lightweight and fast (OpenGL based)
• Handles complex Fermi surface topologies

Application Areas

• Superconductivity (gap symmetry visualization)
• Magnetism (spin projection)
• Transport properties (Fermi velocity mapping)
• Topological materials (Weyl points, nodal lines)

Community and Support

• Open-source (MIT)
• Developed by Mitsuaki Kawamura (ISSP, U. Tokyo)
• Active on GitHub

Verification & Sources

Primary sources:

1. Homepage: https://fermisurfer.osdn.jp/
2. GitHub: https://github.com/mitsuaki1987/fermisurfer
3. Publication: M. Kawamura, Comp. Phys. Comm. 239, 272 (2019)

Confidence: VERIFIED

Verification status: ✅ VERIFIED

• Website: ACTIVE
• Documentation: AVAILABLE
• Source: OPEN (GitHub)
• Development: ACTIVE (Kawamura)
• Applications: Fermi surface visualization, property mapping, QE integration