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Spin Phonon Coupling

All articles tagged with #spin phonon coupling

science24 days ago•21 min saved

Acoustic Purcell boost pairs a diamond color center with a nanomechanical cavity

Researchers build a microwave‑frequency nanomechanical resonator around a single silicon‑vacancy center in diamond and use a co‑localized optical mode to access the excited state, observing an acoustic Purcell effect that speeds spin relaxation by ~10× when the qubit is in resonance with a 12 GHz mode, while also using the color center as a probe to map the device’s phonon spectrum up to 28 GHz, establishing a new control regime for quantum defects and paving the way for phonon‑based interconnects between memories and qubits.

via Nature|

#acoustic-purcell #diamond #nanomechanical-resonator

science-and-technology2 years ago•4 min saved

Harnessing Chiral Phonons Unlocks Quantum Transformation and Magnetic Phenomena

Researchers at Rice University have discovered that when the atomic lattice in a rare-earth crystal vibrates in a corkscrew-shaped motion called a chiral phonon, the crystal becomes magnetized. By exposing cerium fluoride to ultrafast pulses of light, the spins of electrons align with the atomic rotation, resulting in magnetization. This effect, known as spin-phonon coupling, has potential applications in developing novel magnetic and quantum materials. The study provides insights into the interaction between chiral phonons and material properties, contributing to the understanding of quantum effects in solids.

via Phys.org|

#chiral-phonons #magnetization #quantum-materials