Results 151 to 160 of about 8,777 (286)

Electronic structure of the nitrogen-vacancy color center in diamond.

, 1991
The nitrogen - vacancy (N-V) center is a point defect found in diamonds containing substitutional nitrogen impurities. It arises after exposure to ionizing radiation and subsequent thermal annealing.
Redman, David Andrew
core  

Vibrational relaxation dynamics of the nitrogen-vacancy center in diamond

, 2018
We employ a combination of spectrally resolved optical pump-probe spectroscopy and excited-state ab initio molecular dynamics (ESAIMD) simulations to study the ultrafast vibrational relaxation dynamics of the 3E excited state of negatively charged ...
Zhi-Heng Loh, Sheng Meng, Ulbricht, Ronald, Shuo Dong, Dong, Shuo, Meng, Sheng, Gali, Adam, Ronald Ulbricht, Loh, Zhi-Heng, Adam Gali   +9 more
core   +1 more source

Orbital Geometry‐Governed Response of Pressure‐Tunable Quantum Defects in hBN

Advanced Functional Materials, EarlyView.
Defects in hBN act as ultrasensitive quantum manometers when the energy of the intradefect optical transitions is modified by lattice compression. The orbital geometry of the electron wave functions governs how electron hopping and Coulomb interactions react uniquely to the reduction of the van der Waals gap and in‐plane compression, leading to robust ...
Magdalena Grzeszczyk, Danis I. Badrtdinov, Kenji Watanabe, Takashi Taniguchi, Cyrus E. Dreyer, Malte Rösner, Maciej Koperski   +6 more
wiley   +1 more source

Use of Magnetic Modulation of Nitrogen-Vacancy Center Fluorescence in Nanodiamonds for Quantitative Analysis of Nanoparticles in Organisms. [PDF]

ACS Meas Sci Au, 2022
Jones ZR, Niemuth NJ, Zhang Y, Protter CR, Kinsley PC, Klaper RD, Hamers RJ.   +6 more
europepmc   +1 more source

Titanium Suboxides Responsible for Electronic Anomaly Near Room Temperature in the Ti3C2Tx MXene

Advanced Functional Materials, EarlyView.
Our multi‐technique study reveals that the near‐room‐temperature anomaly in Ti3C2Tx MXene is linked to titanium suboxide nanodomains, including Ti3O5, embedded within the MXene host. Their temperature‐driven transformation provides an alternative explanation to solvent‐ and swelling‐based models and offers new insight into the thermally activated ...
Bence G. Márkus, Bradlee J. McIntosh, Lili Vajtai, Anna Nyáry, Sándor H. Sipos, Nirmal J. Ghimire, Ferenc Simon, László Forró, Dávid Beke   +8 more
wiley   +1 more source

Nanodiamond quantum thermometry assisted with machine learning

Applied Physics Express
Nanodiamonds (NDs) are quantum sensors that enable local temperature measurements, taking advantage of their small size. Though model-based analysis methods have been used for ND quantum thermometry, their accuracy has yet to be thoroughly investigated ...
Kouki Yamamoto, Kensuke Ogawa, Moeta Tsukamoto, Yuto Ashida, Kento Sasaki, Kensuke Kobayashi   +5 more
doaj   +1 more source

Nitrogen Vacancy Center Created by Anisotropic and Hydrostatic High-Pressure-High-Temperature Treatment after Electron Irradiation

, 2019
Nitrogen vacancy (NV) center is composed of a substitutional nitrogen and a vacancy on adjacent lattice sites in diamond. An electron spin of NV center can be detected and manipulated at room temperature, and spin state are utilized for quantum sensors ...
Saito, Hiroyuki, Saiki, Seiichi, Nishihara, Yu, Onoda, Shinobu, Ohshima, Takeshi, Higuchi, Taisei, Kada, Wataru, 827644, 827643, 827635, 827646, 827634, 827645, 827637, 827636, 827639, 827638, Hanaizumi, Osamu, 827640, 827642, 827641   +20 more
core  

Probing superconductivity using negatively charged nitrogen-vacancy center

, 2023
The Negatively-charged nitrogen vacancy center has emerged as a versatile quantum sensor in last decades. The contactless optical excitation and readout make it compatible with other condensed matter system.
Leung, Wai Kuen
core  

Electrode and Microstructure Dependence of Oxygen Diffusion in Ferroelectric Hafnium Zirconium Oxide Thin Films

Advanced Functional Materials, EarlyView.
Significant nanoscale oxygen diffusion coefficient variations are measured in ferroelectric hafnium zirconium oxide films with grain boundaries and electrode interfaces exhibiting values 104 times larger than the grain cores. Overall coefficients are 10X larger for films prepared with metal nitride electrodes compared to refractory metals. New insights
Liron Shvilberg, Thomas W. Pfeifer, Chuanzhen Zhou, Yong Kyu Choi, Duk‐Hyun Choe, Patrick E. Hopkins, Jon F. Ihlefeld   +6 more
wiley   +1 more source

High‐Index, Low‐Loss Optical Material Platforms for Ultra‐Broadband Ultraviolet‐to‐Visible Achromatic Metalenses

Advanced Functional Materials, EarlyView.
An integrated material platform combining engineered SiNx thin films and printable ZrO2 nanoparticle‐embedded resin enables broadband achromatic metalenses from the ultraviolet to visible range. The demonstrated meta‐optics achieve near‐diffraction‐limited focusing with minimal chromatic aberration.
Hyunjung Kang, Dongmin Jeon, Eunji Lee, Junsuk Rho   +3 more
wiley   +1 more source