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Weyl semimetals host quasiparticles that behave like massless ________ fermions.
- Dirac
- Majorana
- Weyl
- Pauli
Answer: Weyl
Weyl fermions (predicted 1929, observed 2015) are chiral, massless excitations in topological semimetals. Exhibit exotic transport: chiral anomaly, Fermi arcs. Potential for low-power electronics, quantum computing. [[NCERT Physics Class 12, DST Reports]]