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The study establishes that the degree of optically induced spin polarization that can be achieved for NV$^- $in 1b diamond is limited by the concentration of single substitutional nitrogen, N$^0$ . The polarization of the individual NV…

We combine density functional theory within the local density approximation, the quasiharmonic approximation, and vibrational density of states to calculate single crystal elastic constants, and bulk and shear moduli of diamond at…

材料科学 · 物理学 2015-06-05 M. Núñez Valdez , K. Umemoto , R. M. Wentzcovitch

Nitrogen-vacancy centers in diamond have been shown to be capable of detecting AC magnetic fields with high sensitivity, spectral resolution, and spatial resolution. However, most studies so far have focused on the regime of time-averaged…

In this report, the polarization properties of the photoluminescence emitted by single nitrogen-vacancy (NV) color centers in diamond are investigated using resonant excitation at cryogenic temperature. We first underline that the two…

量子物理 · 物理学 2009-06-19 F. Kaiser , V. Jacques , A. Batalov , P. Siyushev , F. Jelezko , J. Wrachtrup

Nitrogen vacancy (NV) centres in diamond are attractive as quantum sensors owing to their superb coherence under ambient conditions. However, the NV centre spin resonances are relatively insensitive to some important parameters such as…

Important discoveries have frequently been made through the studies of matter under high pressure. The conditions of the pressure environment are important for the interpretation of the experimental results. Due to various restrictions…

In this work, we explore the ability of plasma assisted chemical vapor deposition (PACVD) operating under high power densities to produce thin high-quality diamond layers with a controlled doping with negatively-charged nitrogen-vacancy…

材料科学 · 物理学 2015-04-09 A. Tallaire , M. Lesik , V. Jacques , S. Pezzagna , V. Mille , O. Brinza , J. Meijer , B. Abel , J. -F. Roch , A. Gicquel , J. Achard

We studied the dynamic nuclear spin polarization of nitrogen in negatively charged nitrogen-vacancy (NV) centers in diamond both experimentally and theoretically over a wide range of magnetic fields from 0 to 1100 G covering both the…

量子物理 · 物理学 2021-01-04 Laima Busaite , Reinis Lazda , Andris Berzins , Marcis Auzinsh , Ruvin Ferber , Florian Gahbauer

We show a marked reduction in the emission from nitrogen-vacancy (NV) color centers in single crystal diamond due to exposure of the diamond to hydrogen plasmas ranging from 700{\deg}C to 1000{\deg}C. Significant fluorescence reduction was…

We investigate the impact of quantum vibronic coupling on the electronic properties of solid-state spin defects using stochastic methods and first principles molecular dynamics with a quantum thermostat. Focusing on the negatively charged…

计算物理 · 物理学 2024-01-19 Arpan Kundu , Giulia Galli

The ability to sensitively detect charges under ambient conditions would be a fascinating new tool benefitting a wide range of researchers across disciplines. However, most current techniques are limited to low-temperature methods like…

Nanodiamonds containing nitrogen-vacancy (NV) centers offer a versatile platform for sensing applications spanning from nanomagnetism to in-vivo monitoring of cellular processes. In many cases, however, weak optical signals and poor…

量子物理 · 物理学 2018-04-30 David A. Hopper , Richard R. Grote , Samuel M. Parks , Lee C. Bassett

Nitrogen vacancy centers (NV) in proximity to diamond surfaces are promising nanoscale quantum sensors. However, their coherence properties are negatively affected by magnetic and electric surface noise, whose origin and detailed impact…

量子物理 · 物理学 2025-12-12 Jonah Nagura , Mykyta Onizhuk , Giulia Galli

Diamond heat-spreaders for gallium nitride (GaN) devices currently depend upon a robust wafer bonding process. Bonding-free membrane methods demonstrate potential, however, chemical vapour deposition (CVD) of diamond directly onto a…

Powered by the mutual developments in instrumentation, materials andtheoretical descriptions, sensing and imaging capabilities of quantum emitters insolids have significantly increased in the past two decades. Quantum emitters insolids,…

应用物理 · 物理学 2019-09-11 Mariusz Radtke , Ettore Bernardi , Abdallah Slablab , Richard Nelz , Elke Neu

Ramp compression experiments characterize high-pressure states of matter at temperatures well below those present in shock compression. However, because temperature is typically not directly measured during ramp compression, it is uncertain…

材料科学 · 物理学 2021-10-14 F. González-Cataldo , B. K. Godwal , Kevin Driver , Raymond Jeanloz , Burkhard Militzer

The nitrogen-vacancy (NV) center in diamond is the prototype quantum defect that enables a variety of diamond-based quantum technologies. However, charge-state instability and spectral diffusion, often induced by substitutional nitrogen…

Nitrogen-vacancy (NV) centers in diamond are reliable single-photon emitters, with applications in quantum technologies and metrology. Two charge states are known for NV centers: NV$^0$ and NV$^-$, with the latter being mostly studied due…

光学 · 物理学 2019-12-23 Magdalena Solà-Garcia , Sophie Meuret , Toon Coenen , Albert Polman

Nitrogen vacancy (NV-) color centers in diamond are a prime candidate for use in quantum information devices, owing to their spin-1 ground state, straightforward optical initialization and readout, and long intrinsic coherence times in a…

量子物理 · 物理学 2015-06-19 Anna J. Parker , Hai-Jing Wang , Yiran Li , Alexander Pines , Jonathan P. King

Treatment of lab-grown diamond by electron irradiation and annealing has enabled quantum sensors based on negatively-charged nitrogen-vacancy (NV$^\text{-}$) centers to demonstrate record sensitivities.…

介观与纳米尺度物理 · 物理学 2019-10-09 Scott Alsid , John Barry , Linh Pham , Jennifer Schloss , Michael O'Keefe , Paola Cappellaro , Danielle Braje
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