Observation of Low Temperature Magneto-Mechanic Effects in Crystalline Resonant Phonon Cavities
arXiv:1902.02001 · doi:10.1103/PhysRevB.100.174108
Abstract
We observe magnetic effects in ultra-high quality factor crystalline quartz Bulk Acoustic Wave resonators at milli-Kelvin temperature. The study reveals existence of hysteresis loops, jumps and memory effects of acoustical resonance frequencies. These loops arise as a response to the external magnetic field and span over few Hertz range for modes with linewidths of about mHz, which constitute a frequency shift of order 60 linewidths. The effects are broadband but get stronger towards higher frequencies where both nonlinear effects and losses are limited by two level systems. This suggests that the observed effects are due to ferromagnet-like phase of a spin ensemble coupled to mechanical modes. The observed coupling between mechanical and spin degrees of freedom in the ultra low loss regime brings new possibilities for the emerging class of quantum hybrid systems.
References in corpus (21)
- Quantum technologies with hybrid systems
- Strong magnetic coupling between an electronic spin qubit and a mechanical resonator
- Creation and control of multi-phonon Fock states in a bulk acoustic wave resonator
- Extremely Low Loss Phonon-Trapping Cryogenic Acoustic Cavities for Future Physical Experiments
- Quantum dot opto-mechanics in a fully self-assembled nanowire
- Bulk crystalline optomechanics
- Extremely Low-Loss Acoustic Phonons in a Quartz Bulk Acoustic Wave Resonator at Millikelvin Temperature
- Reversal mechanism of an individual Ni nanotube simultaneously studied by torque and SQUID magnetometry
- Observation of Brillouin optomechanical strong coupling with an 11 GHz mechanical mode
- Observation of Rayleigh phonon scattering through excitation of extremely high overtones in low-loss cryogenic acoustic cavities for hybrid quantum systems
- Hybrid quantum systems with trapped charged particles
- Dynamic cantilever magnetometry of individual CoFeB nanotubes
- An opto-magneto-mechanical quantum interface between distant superconducting qubits
- Giant -factors of Natural Impurities in Synthetic Quartz
- Quantum magnetomechanics: towards the ultra-strong coupling regime
- Evidence of Dilute Ferromagnetism in Rare-Earth doped YAG
- Effects of Geometry on Near Quantum Ground State Behaviour of Phonon-Trapping Acoustic Cavities
- Anomalously Strong Nonlinearity of Unswept Quartz Acoustic Cavities at Liquid Helium Temperatures
- Coherent Magneto-Optomechanical Signal Transduction and Long-Distance Phase-Shift Keying
- Jump Chaotic Behaviour of Ultra Low Loss Bulk Acoustic Wave Cavities
- Multimode strong coupling in cavity optomechanics