1996 Physics and Astronomy Classification Scheme (PACS)
Numerical Scheme
PACS Category 00: General
PACS Category 10: The Physics of Elementary Particles and Fields
PACS Category 20: Nuclear Physics
PACS Category 30: Atomic and Molecular Physics
PACS Category 40: Fundamental Areas of Phenomenology (including Applications)
PACS Category 50: Physics of Gases, Plasmas, and Electric Discharges
PACS Category 60: Condensed Matter: Structure, Mechanical and Thermal Properties
PACS Category 70: Condensed Matter: Electronic Structure, Electrical, Magnetic, and Optical Properties
PACS Category 80: Cross-Disciplinary Physics and Related Areas of Science and Technology
PACS Category 90: Geophysics, Astronomy, and Astrophysics
PACS Appendix to 43: Acoustics
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