Results 71 to 80 of about 8,777 (286)

Measuring mechanical motion with a single spin

New Journal of Physics, 2012
We study theoretically the measurement of a mechanical oscillator using a single two-level system as a detector. In a recent experiment, we used a single electronic spin associated with a nitrogen–vacancy center in diamond to probe the thermal motion of ...
S D Bennett, S Kolkowitz, Q P Unterreithmeier, P Rabl, A C Bleszynski Jayich, J G E Harris, M D Lukin   +6 more
doaj   +1 more source

Vibrationally resolved optical excitations of the nitrogen-vacancy center in diamond

npj Computational Materials, 2022
A comprehensive description of the optical cycle of spin defects in solids requires the understanding of the electronic and atomistic structure of states with different spin multiplicity, including singlet states which are particularly challenging from a
Yu Jin, Marco Govoni, Giulia Galli
doaj   +1 more source

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +1 more source

Eddy-Current Imaging with Nitrogen-Vacancy Centers in Diamond [PDF]

Physical Review Applied, 2019
We demonstrate microwave-free eddy-current imaging using nitrogen-vacancy centers in diamond. By detecting the eddy-current induced magnetic field of conductive samples, we can distinguish between different materials and shapes and identify structural defects.
Chatzidrosos, Georgios, Wickenbrock, Arne, Bougas, Lykourgos, Zheng, Huijie, Tretiak, Oleg, Yang, Yu, Budker, Dmitry   +6 more
openaire   +2 more sources

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

Advanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee, Son Tung Mai, Sarath Menon, Braulio Gadiel Sánchez Ortega, Ralf Drautz, Alexander Kauffmann, Gunther Eggeler, Jan Frenzel   +7 more
wiley   +1 more source

Terahertz emission from diamond nitrogen-vacancy centers

Science Advances
Coherent light sources emitting in the terahertz range are highly sought after for fundamental research and applications. Terahertz lasers rely on achieving population inversion. We demonstrate the generation of terahertz radiation using nitrogen-vacancy centers in a diamond single crystal.
Kollarics, Sándor, Márkus, Bence Gábor, Kucsera, Robin, Thiering, Gergő, Gali, Ádám, Németh, Gergely, Kamarás, Katalin, Forró, László, Simon, Ferenc   +8 more
openaire   +4 more sources

Controlling Nitrogen-Vacancy Center Spins with a Mechanical Resonator [PDF]

, 2017
The spin state of the nitrogen-vacancy (NV) center in diamond offers a promising platform for the development of quantum technologies and investigations into spin dynamics at the nanoscale.
MacQuarrie, Evan Ronald
core   +1 more source

Local Excitations of a Charged Nitrogen Vacancy in Diamond with Multireference Density Matrix Embedding Theory

, 2023
We investigate the negatively charged nitrogen-vacancy center in diamond using periodic density matrix embedding theory (pDMET). To describe the strongly correlated excited states of this system, the complete active space self-consistent field (CASSCF ...
Soumi, Haldar, Abhishek, Mitra, Matthew R., Hermes, Laura, Gagliardi   +3 more
core   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

Fabrication and quantum sensing of spin defects in silicon carbide

Frontiers in Physics, 2023
In the past decade, color centers in silicon carbide (SiC) have emerged as promising platforms for various quantum information technologies. There are three main types of color centers in SiC: silicon-vacancy centers, divacancy centers, and nitrogen ...
Qin-Yue Luo, Qiang Li, Qiang Li, Qiang Li, Jun-Feng Wang, Pei-Jie Guo, Wu-Xi Lin, Wu-Xi Lin, Wu-Xi Lin, Shuang Zhao, Qi-Cheng Hu, Zi-Qi Zhu, Jin-Shi Xu, Jin-Shi Xu, Jin-Shi Xu, Chuan-Feng Li, Chuan-Feng Li, Chuan-Feng Li, Guang-Can Guo, Guang-Can Guo, Guang-Can Guo   +20 more
doaj   +1 more source