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We demonstrate a spin-based, all-dielectric electrometer based on an ensemble of nitrogen-vacancy (NV$^-$) defects in diamond. An applied electric field causes energy level shifts symmetrically away from the NV$^-$'s degenerate triplet…

Nanodiamonds containing negatively charged nitrogen vacancy centres (${\text{NV}}^{-}$) have applications as localized sensors in biological material and have been proposed as a platform to probe the macroscopic limits of spatial…

Nitrogen-vacancy (NV) centers in diamond can be used for nanoscale sensing with atomic resolution and sensitivity; however, it has been observed that their properties degrade as they approach the diamond surface. Here we report that in…

Nitrogen-vacancy (NV) centers in diamond have become an important tool for quantum technologies. All of these applications rely on long coherence times of electron and nuclear spins associated with these centers. Here, we study the energy…

Quantum Physics · Physics 2020-12-02 K. Rama Koteswara Rao , Dieter Suter

The temperature dependence of the zero-field splitting (ZFS) between the $|m_{s}=0\rangle$ and $|m_{s}=\pm 1\rangle$ levels of the nitrogen-vacancy (NV) center's electronic ground-state spin triplet can be used as a robust nanoscale…

Mesoscale and Nanoscale Physics · Physics 2023-06-09 M. C. Cambria , G. Thiering , A. Norambuena , H. T. Dinani , A. Gardill , I. Kemeny , V. Lordi , A. Gali , J. R. Maze , S. Kolkowitz

The negatively charged nitrogen-vacancy defect ($N-V^-$ center) in diamond is an important atomic-scale structure that can be used as a qubit in quantum computing and as a marker in biomedical applications. Its usefulness relies on the…

Materials Science · Physics 2015-05-13 Adam Gali , Erik Janzén , Péter Deák , Georg Kresse , Efthimios Kaxiras

Key to future spintronics and spin-based information processing technologies is the generation, manipulation, and detection of spin polarization in a solid state platform. Here, we theoretically explore an alternative route to spin…

Mesoscale and Nanoscale Physics · Physics 2014-07-29 Carlos A. Meriles , Marcus W. Doherty

Nitrogen-vacancy (NV) centers in diamond have attracted significant interest because of their excellent spin and optical characteristics for quantum information and metrology. To take advantage of the characteristics, the precise control of…

Nitrogen-vacancy (NV) center in diamond was found to be a powerful tool for various sensing applications. The main work horse of this center so far has been optically detected electron resonance. Utilization of the nuclear spin has the…

The electrical conductivity of a material can feature subtle, nontrivial, and spatially-varying signatures with critical insight into the material's underlying physics. Here we demonstrate a conductivity imaging technique based on the…

Mesoscale and Nanoscale Physics · Physics 2018-06-26 Amila Ariyaratne , Dolev Bluvstein , Bryan A. Myers , Ania C. Bleszynski Jayich

Using a high quality factor 3 GHz bulk acoustic wave resonator device, we demonstrate the acoustically driven single quantum spin transition ($\left|m_{s}=0\right>\leftrightarrow\left|\pm1\right>$) for diamond NV centers and characterize…

Quantum Physics · Physics 2020-03-10 H. Y. Chen , S. A. Bhave , G. D. Fuchs

Hands-on experimental experience with quantum systems in the undergraduate physics curriculum provides students with a deeper understanding of quantum physics and equips them for the fast-growing quantum science industry. Here we present an…

Engineering a layer of nitrogen-vacancy (NV) centers on the tip of a diamond anvil creates a multipurpose quantum sensors array for high pressure measurements, especially for probing magnetic and superconducting properties of materials.…

Solid state spins in diamond, in particular negatively charged nitrogen-vacancy centers (NV), are leading contenders in the field of quantum sensing. While addressing of single NVs offers nanoscale spatial resolution, many implementations…

Quantum Physics · Physics 2023-01-11 Yuchun Zhu , Elena Losero , Christophe Galland , Valentin Goblot

Megabar pressures are of crucial importance for cutting-edge studies of condensed matter physics and geophysics. With the development of diamond anvil cell, laboratory studies of high pressure have entered the megabar era for decades.…

Quantum Physics · Physics 2024-09-26 Jian-Hong Dai , Yan-Xing Shang , Yong-Hong Yu , Yue Xu , Hui Yu , Fang Hong , Xiao-Hui Yu , Xin-Yu Pan , Gang-Qin Liu

We studied the spin depolarization of ensembles of nitrogen-vacancy (NV) centers in nitrogen-rich single crystal diamonds. We found a strong dependence of the evolution of the polarized state in the dark on the concentration of NV centers.…

Mesoscale and Nanoscale Physics · Physics 2018-07-11 R. Giri , F. Gorrini , C. Dorigoni , C. E. Avalos , M. Cazzanelli , S. Tambalo , A. Bifone

The nitrogen-vacancy (NV) center in diamond is a prime candidate for quantum sensing technologies. Here, we present a fully integrated and mechanically robust fiber-based endoscopic sensor with a tip diameter of $1.25 \mathrm{mm}$. On its…

High concentration of negatively charged nitrogen-vacancy ($\text{NV}^{-}$) centers was created in diamond single crystals containing approximately 100 ppm nitrogen using electron and neutron irradiation and subsequent thermal annealing in…

Chemical sensors with high sensitivity that can be used in extreme conditions and can be miniaturized are of high interest in science and industry. The Nitrogen-vacancy (NV) center in diamond is an ideal candidate as a nanosensor due to the…

Quantum Physics · Physics 2021-02-16 Hossein T. Dinani , Enrique Muñoz , Jeronimo R. Maze

Magnetic resonance techniques provide a powerful tool for controlling spin systems, with applications ranging from quantum information processing to medical imaging. Nevertheless, the behavior of a spin system under strong excitation…

Quantum Physics · Physics 2015-05-19 Lilian Childress , Jean McIntyre
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