Detection of a Few Metallo-Protein Molecules Using Color Centers in Nanodiamonds

Ermakova, Anna; Pramanik, Goutam; Cai, Jianming; Algara‐Siller, Gerardo; Kaiser, Ute; Weil, Tanja; Tzeng, Yan‐Kai; Chang, Huan‐Cheng; McGuinness, Liam P.; Plenio, Martin B.; Naydenov, Boris; Jelezko, Fedor

doi:10.1021/nl4015233

Cited by 205 publications

(202 citation statements)

References 49 publications

(73 reference statements)

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“…In a recent experiment, gadolinium-containing molecules were localized on a diamond substrate and then a single molecule's magnetic noise was shown to inhibit the NV center's relaxation time. 18 The NV center has also been used to investigate superparamagnetic particles via spectroscopy, most prominently in the form of ferritin molecules 19 . Recently, it was successfully employed to study their temperature dependent dynamics 20 .…”

Section: Magnetic Nanomaterials Such As Magnetic Nanoparticles and Simentioning

confidence: 99%

Relaxometry and Dephasing Imaging of Superparamagnetic Magnetite Nanoparticles Using a Single Qubit

Schmid-Lorch¹,

Häberle²,

Reinhard³

et al. 2015

Nano Lett.

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Supporting Information. Detailed description of the experimental setup and the data acquisition. Overview on sample and T2 dephasing fitting function. Dependence of the transfer function on the NV axis orientation. SQUID susceptometry measurements. Study of the fit parameters. Measurements of the collapses and revivals of the 13 C nuclei at different fields.Significance of simultaneous acquisition of T1 and T2 for the fit.

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Section: Magnetic Nanomaterials Such As Magnetic Nanoparticles and Simentioning

confidence: 99%

Relaxometry and Dephasing Imaging of Superparamagnetic Magnetite Nanoparticles Using a Single Qubit

Schmid-Lorch¹,

Häberle²,

Reinhard³

et al. 2015

Nano Lett.

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“…The high spatial resolution is achieved thanks to the atomic size of the NV center and the ability for positioning it with high accuracy [5,[9][10][11][12][18][19][20] in nanoscale diamond. Besides its application in signal transduction and precision measurement, the proposed hybrid system can be exploited to couple the NV-center spin to mechanical oscillations, and significantly enhance the coherent coupling between these two degrees of freedom.…”

mentioning

confidence: 99%

Hybrid sensors based on colour centres in diamond and piezoactive layers

Cai¹,

Jelezko²,

Plenio³

2014

Nat Commun

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The ability to measure weak signals such as pressure, force, electric field, and temperature with nanoscale devices and high spatial resolution offers a wide range of applications in fundamental and applied sciences. Here we present a proposal for a hybrid device composed of thin film layers of diamond with color centers implanted and piezo-active elements for the transduction and measurement of a wide variety of physical signals. The magnetic response of a piezomagnetic layer to an external stress or a stress induced by the change of electric field and temperature is shown to affect significantly the spin properties of nitrogen-vacancy centers in diamond. Under ambient conditions, realistic environmental noise and material imperfections, our detailed numerical studies show that this hybrid device can achieve significant improvements in sensitivity over the pure diamond based approach in combination with nanometer scale spatial resolution. Beyond its applications in quantum sensing the proposed hybrid architecture offers novel possibilities for engineering strong coherent couplings between nanomechanical oscillator and solid state spin qubits.Introduction.-The sensitive measurement of signals, such as force, pressure, electric field, temperature, with high spatial resolution possesses a wide range of applications in physics, engineering and the life sciences. Conventional methods, e.g. for pressure detection can usually operate at length scales down to the micron scale. Going beyond this regime whilst retaining highest sensitivity represents a significant challenge.

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“…The detection of external spins with the NV centre is generally achieved through measuring the longitudinal spin relaxation rate (T 1 processes) [9][10][11][12][13] or transverse spin relaxation rate (dephasing, or T 2 processes) [12,[14][15][16] of the NV's electron spin, as they are sensitive to the magnetic field fluctuations produced by the target spins [17][18][19]. To obtain spectral information on the target spins, most studies so far have focussed on using T 2 -based techniques, which have been applied to the spectroscopy of small ensembles of either electronic [20][21][22][23] or nuclear spins [24][25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

“…When the transitional energy between two of the NV eigenstates (generally |0 e and |−1 e , where the number refers to the electron spin projection m e ) is equal to that of a target spin, crossrelaxation occurs, which results in an increase in the relaxation rate, 1/T 1 , of the NV [32,33]. This increase can be measured by purely optical means, even for a single NV centre [10][11][12][13]. By scanning across a range of magnetic field strengths, a resonance spectrum of the target spins can be obtained, which can be deconvolved to produce the target spin spectrum [32].…”

Section: Introductionmentioning

confidence: 99%

Anticrossing Spin Dynamics of Diamond Nitrogen-Vacancy Centers and All-Optical Low-Frequency Magnetometry

et al. 2016

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We investigate the photo-induced spin dynamics of single nitrogen-vacancy (NV) centres in diamond near the electronic ground state level anti-crossing (GSLAC), which occurs at an axial magnetic field around 1024 G. Using optically detected magnetic resonance spectroscopy, we first find that the electron spin transition frequency can be tuned down to 100 kHz for the 14 NV centre, while for the 15 NV centre the transition strength vanishes for frequencies below about 2 MHz owing to the GSLAC level structure. Using optical pulses to prepare and readout the spin state, we observe coherent spin oscillations at 1024 G for the 14 NV, which originate from spin mixing induced by residual transverse magnetic fields. This effect is responsible for limiting the smallest observable transition frequency, which can span two orders of magnitude from 100 kHz to tens of MHz depending on the local magnetic noise. A similar feature is observed for the 15 NV centre at 1024 G. As an application of these findings, we demonstrate all-optical detection and spectroscopy of externally-generated fluctuating magnetic fields at frequencies from 8 MHz down to 500 kHz, using a 14 NV centre. Since the Larmor frequency of most nuclear spin species lies within this frequency range near the GSLAC, these results pave the way towards all-optical, nanoscale nuclear magnetic resonance spectroscopy, using longitudinal spin cross-relaxation.

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Detection of a Few Metallo-Protein Molecules Using Color Centers in Nanodiamonds

Cited by 205 publications

References 49 publications

Relaxometry and Dephasing Imaging of Superparamagnetic Magnetite Nanoparticles Using a Single Qubit

Relaxometry and Dephasing Imaging of Superparamagnetic Magnetite Nanoparticles Using a Single Qubit

Hybrid sensors based on colour centres in diamond and piezoactive layers

Anticrossing Spin Dynamics of Diamond Nitrogen-Vacancy Centers and All-Optical Low-Frequency Magnetometry

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