What is Condensed Matter: Difference between revisions
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Revision as of 23:47, 4 December 2024
Condensed Matter Physics
Condensed Matter Physics is a branch of physics that studies the macroscopic and microscopic properties of matter in condensed phases, such as solids and liquids. This field seeks to understand how the interactions between constituent particles (atoms, molecules, and electrons) give rise to complex physical phenomena and material properties.
Subfields of Condensed Matter Physics
Solid-State Physics
Key Topics:
Crystalline Structures:
Study of how atoms arrange themselves in lattice structures, defects, dislocations, and amorphous states.
Electronic Band Theory:
Explains how electrons occupy energy bands, leading to phenomena like conduction, insulation, and semiconducting behavior.
Phonons:
Study of quantized vibrational energy modes and their effects on thermal conductivity and superconductivity.
Superconductivity:
Phenomenon where certain materials exhibit zero electrical resistance and expel magnetic fields below a critical temperature. Key topics include BCS theory, high-temperature superconductors, and applications in quantum computing and MRI.
Quantum Dots:
Nanoscale semiconductor particles where quantum confinement creates discrete energy levels. Their optical and electronic properties depend on size, making them useful in LEDs, solar cells, lasers, and quantum displays.
Applications of Solid-State Physics
Development of semiconductors for transistors, diodes, and integrated circuits.
Advanced materials for energy storage, photovoltaics, and spintronics.
Technologies like LEDs, lasers, and sensors.
Soft Matter Physics
Soft Matter Physics explores materials that can be easily deformed by external forces, including polymers, colloids, and biological materials.
Key Topics:
Polymers:
Long chains of repeating molecular units with unique mechanical and viscoelastic properties.
Colloids:
Systems of particles suspended in a continuous medium, including emulsions and aerosols.
Liquid Crystals:
Phases of matter that have properties between liquids and solids; essential for modern display technologies.
Biological Soft Matter:
Examines cellular membranes, DNA, proteins, and cytoskeletal dynamics.
See also
https://en.wikipedia.org/wiki/Solid-state_physics
https://en.wikipedia.org/wiki/Crystallography