Editing Condensed Matter Physics (section)

== <span style="color: #FFFFFF;">Remembering</span> ==
* '''Condensed Matter''' — Phases of matter where particles are close together (solids and liquids).
* '''Crystal Lattice''' — A highly ordered arrangement of atoms in a solid.
* '''Semiconductor''' — A material with electrical conductivity between that of a conductor and an insulator (e.g., Silicon).
* '''Superconductivity''' — A phenomenon where a material conducts electricity with zero resistance below a critical temperature.
* '''Superfluidity''' — A state of matter in which matter behaves like a fluid with zero viscosity.
* '''Band Theory''' — A model explaining the behavior of electrons in solids by identifying allowed and forbidden energy bands.
* '''Fermi Level''' — The highest energy level occupied by electrons at absolute zero.
* '''Phonon''' — A collective excitation in a periodic, elastic arrangement of atoms (a quantum of sound/vibration).
* '''Allotrope''' — Different structural forms of the same element (e.g., Diamond and Graphite for Carbon).
* '''Doping''' — Intentionally adding impurities to a semiconductor to change its electrical properties.
* '''Bose-Einstein Condensate (BEC)''' — A state of matter formed by bosons cooled to near absolute zero, where they occupy the same lowest quantum state.
* '''Topological Insulator''' — A material that behaves as an insulator in its interior but whose surface contains conducting states.
* '''Magnetism''' — Collective behavior of electron spins leading to ferromagnetic, antiferromagnetic, or ferrimagnetic order.
* '''Amorphous Solid''' — A solid that lacks a long-range periodic order of its atoms (e.g., Glass).
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