Magnon Condensation in a Dense Nitrogen-Vacancy Spin Ensemble
arXiv:1901.05818 · doi:10.1103/PhysRevB.99.024414
Abstract
The feasibility of creating a Bose-Einstein condensate of magnons using a dense ensemble of nitrogen-vacancy spin defects in diamond is investigated. Through assessing a density-dependent spin exchange interaction strength and the magnetic phase transition temperature () using the Sherrington-Kirkpatrick model, the minimum temperature-dependent concentration for magnetic self-ordering is estimated. For a randomly dispersed spin ensemble, the calculated average exchange constant exceeds the average dipole interaction strengths for concentrations approximately greater than 70 ppm, while is estimated to exceed 10 mK beyond 90 ppm, reaching 300 K at a concentration of approximately 450 ppm. On this basis, the existence of dipole-exchange spin waves and their plane-wave dispersion is postulated and estimated using a semiclassical magnetostatic description. This is discussed along with a -based estimate of the four-magnon scattering rate, which indicates magnons and their condensation may be detectable in thin films for concentrations greater than 90 ppm.
arXiv comment14 pages, 6 figures
References in corpus (33)
- The nitrogen-vacancy colour centre in diamond
- Observation of discrete time-crystalline order in a disordered dipolar many-body system
- Exciton-polariton condensates
- Realization of Bose-Einstein condensation of dilute magnons in TlCuCl
- Optical magnetic detection of single-neuron action potentials using quantum defects in diamond
- High nitrogen-vacancy density diamonds for magnetometry applications
- Magnonic crystals for data processing
- Temperature and magnetic field dependent longitudinal spin relaxation in nitrogen-vacancy ensembles in diamond
- Room-temperature superfluidity in a polariton condensate
- First-principles theory of the luminescence lineshape for the triplet transition in diamond NV centre
- Magnon spin transport driven by the magnon chemical potential in a magnetic insulator
- Ab initio supercell calculations on nitrogen-vacancy center in diamond: its electronic structure and hyperfine tensors
- Spin dynamics in the optical cycle of single nitrogen-vacancy centres in diamond
- Scalable Architecture for a Room Temperature Solid-State Quantum Information Processor
- Bose-Einstein Condensation of Long-Lifetime Polaritons in Thermal Equilibrium
- Continuous-wave room-temperature diamond maser
- Critical thermalization of a disordered dipolar spin system in diamond
- Storage of multiple coherent microwave excitations in an electron spin ensemble
- Microscopic spin-wave theory for yttrium-iron garnet films
- Perfectly Aligned Shallow Ensemble Nitrogen-Vacancy Centers in (111) Diamond
- Macroscopic Two-Dimensional Polariton Condensates
- Coupled charge and spin dynamics in high-density ensembles of nitrogen-vacancy centers in diamond
- Generation of Ensembles of Individually Resolvable Nitrogen Vacancies Using Nanometer-Scale Apertures in Ultrahigh-Aspect Ratio Planar Implantation Masks
- Is spin superfluidity possible in YIG films?
- Spin dynamics of diamond nitrogen-vacancy centres at the ground state level anti-crossing and all-optical low frequency magnetic field sensing
- First principles study of charge diffusion between proximate solid state qubits and its implications on sensor applications
- First-principles study of the dynamic Jahn-Teller distortion of the neutral vacancy in diamond
- Magnetic ordering of nitrogen-vacancy centers in diamond via resonator-mediated coupling
- Purification of an unpolarized spin ensemble into entangled singlet pairs
- Controllable quantum spin glasses with magnetic impurities embedded in quantum solids
- Nanometer-scale Exchange Interactions Between Spin Centers in Diamond
- The Sherrington-Kirkpatrick spin glass model in the presence of a random field with a joint Gaussian probability density function for the exchange interactions and random fields
- The role of exchange interaction in nitrogen vacancy centre-based magnetometry