AlN/single crystalline diamond piezoelectric structure as a high overtone bulk acoustic resonator

Sorokin, B. P.; Квашнин, Г. М.; Волков, А. П.; Бормашов, В. С.; Aksenenkov, V. V.; Кузнецов, М. С.; Gordeev, Georgy; Telichko, Arsenii

doi:10.1063/1.4798333

Cited by 43 publications

(31 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…First, we expect additional refinements in device fabrication to increase the Q of our devices, which could provide at least a factor of 5 enhancement in the mechanical driving field [26]. Also, working in higher electronic purity diamond will dramatically reduce spin bath induced dephasing, and working with either a single spin or a plane of NV centers would remove dephasing from driving field inhomogeneities.…”

mentioning

confidence: 99%

Coherent control of a nitrogen-vacancy center spin ensemble with a diamond mechanical resonator

MacQuarrie¹,

Gosavi²,

Moehle³

et al. 2015

Optica

View full text Add to dashboard Cite

Coherent control of the nitrogen-vacancy (NV) center in diamond's triplet spin state has traditionally been accomplished with resonant ac magnetic fields under the constraint of the magnetic dipole selection rule, which forbids direct control of the |−1 ↔ |+1 spin transition. We show that high-frequency stress resonant with the spin state splitting can coherently control NV center spins within this subspace. Using a bulk-mode mechanical microresonator fabricated from single-crystal diamond, we apply intense ac stress to the diamond substrate and observe mechanically driven Rabi oscillations between the |−1 and |+1 states of an NV center spin ensemble. Additionally, we measure the inhomogeneous spin dephasing time (T * 2 ) of the spin ensemble using a mechanical Ramsey sequence and compare it to the dephasing times measured with a magnetic Ramsey sequence for each of the three spin qubit combinations available within the NV center ground state.These results demonstrate coherent spin driving with a mechanical resonator and could enable the creation of a phase-sensitive ∆-system within the NV center ground state. Here we use a mechanical microresonator to apply a large amplitude ac stress to a single crystal diamond. Building on recent spectroscopy experiments [8], we tune the frequency of this stress wave into resonance with the |(m s =) − 1 ↔ |+1 spin transition to mechanically drive Rabi oscillations of an NV center spin ensemble. Using this capability, we measure the inhomogeneous dephasing time for an ensemble of mechanically controlled NV center spin qubits to be T * 2 = 0.45±0.05 µs and compare this result to T * 2 for magnetically driven qubits constructed from the same NV center ensemble. We find that the mechanically driven {−1, +1} qubit coherence is similar to that of a magnetically driven {−1, +1} qubit, and these {−1, +1} qubits dephase twice as quickly as magnetically driven {0, −1} or {+1, 0} qubits.NV centers couple to mechanical stress (σ ⊥ and σ ) and magnetic fields (B ⊥ and B ) 2 through their ground-state spin Hamiltonian (shown schematically in Fig. 1a)where D 0 /2π = 2.87 GHz is the zero-field splitting, γ N V /2π = 2.8 MHz/G is the gyromagnetic ratio, ⊥ /2π = 0.015 MHz/MPa and /2π = 0.012 MHz/MPa are the perpendicular and axial stress coupling constants [10,14], P/2π = −4.945 MHz and A /2π = −2.166 MHz are the hyperfine parameters [15][16][17], and S x , S y , S z (I x , I y , I z ) are the x, y, and z components of the electronic (nuclear) spin-1 operator. The NV center symmetry axis defines the z-axis of our coordinate system as depicted in Fig. 1b In this work, we use two devices, both fabricated from type IIa, 100 "optical grade" diamonds purchased from Element Six. These samples are specified to contain fewer than 1 ppm nitrogen impurities, and each contained a native NV ensemble as received. The first sample, Sample A, has an NV center density of ∼ 110 NVs/µm 3 , while Sample B has a density of ∼ 120 NVs/µm 3 . To generate the large amplitude, high-frequency stress waves neede...

show abstract

mentioning

confidence: 99%

Coherent control of a nitrogen-vacancy center spin ensemble with a diamond mechanical resonator

MacQuarrie¹,

Gosavi²,

Moehle³

et al. 2015

Optica

View full text Add to dashboard Cite

show abstract

“…In comparison with FBAR the most part of such modes in the HBAR will be suppressed. 4. The arising of strongest spurious resonant peaks at frequencies above the bulk acoustic overtones is concerned with Lamb-like modes within diamond substrate, excited on the critical frequencies.…”

Section: Qexp º 10000mentioning

confidence: 99%

“…A number of substrate materials as fused quartz and silicon [1], sapphire [1,2], YAG [3], and diamond [4] have been already applied. HBAR based on synthetic diamond substrate has showed the excellent UHF resonant properties [4]. But one can observe the appearance of the additional resonant peaks which depends on the structure, dimensions and topology of thin film piezoelectric transducer (TFPT) as well as a diamond substrate thickness.…”

Section: Introductionmentioning

confidence: 99%

Resonant transformation of acoustic waves observed for the diamond based HBAR

Gennagy

Boris

Arseniy

2015

2015 Joint Conference of the IEEE International Frequency Control Symposium &Amp; The European Frequency and Time Forum

View full text Add to dashboard Cite

The resonant transformation of acoustic waves in "Al/AlN/Mo/(100) diamond" piezoelectric structure has been studied by means of 2D FEM simulation. The nature of arising acoustical modes has been defined by the detail investigation of fields of elastic displacements. It was shown that the appearance of strongest spurious resonant peaks at frequencies above the bulk acoustic overtones is concerned with Lamb-like modes within diamond substrate, excited on the critical frequencies. In these points Lamb mode transforms into standing plate wave. Experimental and calculated data are in good accordance.

show abstract

“…Thus, the diamond crystal is a perspective material with largest bulk acoustic wave (BAW) velocities, with low damping, high radiation stability and thermal conductivity. For example, it was shown, that diamond based HBAR can operate at frequencies up to 20 GHz [4].…”

Section: Introductionmentioning

confidence: 99%

UHF acoustic attenuation and quality parameter limits in the diamond based HBAR

Arseniy

Boris

Gennagy

2015

2015 Joint Conference of the IEEE International Frequency Control Symposium &Amp; The European Frequency and Time Forum

View full text Add to dashboard Cite

Ultra high frequency attenuation limits in synthetic IIa diamond single crystal were studied. The investigations were provided by High-overtone Bulk Acoustic Resonator "Al/AlN/Mo/(100) diamond". It was shown, that the change of Akhiezer's attenuation regime to Landau-Rumer one takes place at f ª 1 GHz. The experimental results on the quality parameter showed Q¥f ª 1.8◊10 13 Hz for Akhiezer's regime, and Q¥f ª f¥1.8◊10 4 Hz for Landau-Rumer regime. As a consequence on a higher frequencies diamond single crystal has more preferred acoustic parameters including a lower acoustic attenuation in comparison with known acoustoelectronic materials.

show abstract

AlN/single crystalline diamond piezoelectric structure as a high overtone bulk acoustic resonator

Cited by 43 publications

References 10 publications

Coherent control of a nitrogen-vacancy center spin ensemble with a diamond mechanical resonator

Coherent control of a nitrogen-vacancy center spin ensemble with a diamond mechanical resonator

Resonant transformation of acoustic waves observed for the diamond based HBAR

UHF acoustic attenuation and quality parameter limits in the diamond based HBAR

Contact Info

Product

Resources

About