Article
Chemistry, Multidisciplinary
Umberto Celano, Hai Zhong, Florin Ciubotaru, Laurentiu Stoleriu, Alexander Stark, Peter Rickhaus, Felipe Favaro de Oliveira, Mathieu Munsch, Paola Favia, Maxim Korytov, Patricia Van Marcke, Patrick Maletinsky, Christoph Adelmann, Paul van der Heide
Summary: In this study, nonperturbative field distribution mapping in ultra-scaled magnetic nanowires with diameters down to 6 nm was achieved using scanning nitrogen-vacancy magnetometry, enabling localized, minimally invasive magnetic imaging with sensitivity down to 3 μT Hz(-1/2). The imaging revealed the presence of weak magnetic inhomogeneities inside in-plane magnetized nanowires, largely undetectable with standard metrology. The strong magnetic field confinement in the nanowires allowed for the study of the interaction between the stray magnetic field and the nitrogen-vacancy sensor, clarifying the formation mechanisms for technologically relevant magnetic nanostructures.
Article
Physics, Applied
Gabriel J. Abrahams, Ethan Ellul, Islay O. Robertson, Asma Khalid, Andrew D. Greentree, Brant C. Gibson, Jean -Philippe Tetienne
Summary: Optically detected magnetic resonance (ODMR) spectroscopy is increasingly used in practical quantum sensing devices. This study presents an ODMR meter that allows contactless monitoring of ODMR in a target object, which can find immediate use in medical and industrial applications. The meter demonstrates accurate temperature monitoring using nitrogen-vacancy (N-V) defects and can be extended to magnetic field measurements.
PHYSICAL REVIEW APPLIED
(2023)
Article
Optics
A. K. Dmitriev, A. K. Vershovskii
Summary: This study investigates the response of the level anticrossing signal to a quasiresonant radio-frequency field in zero magnetic field at nitrogen-vacancy (NV) color centers in diamond. It is demonstrated that the complex structure of this response can be explained by the Autler-Townes splitting. The possibility of controlling the parameters of the level anticrossing signal is considered, and it is shown that the slope of the central resonance recorded in this structure can be 2.3 times higher than the slope of the resonance recorded in the absence of a radio-frequency field. Conclusions are drawn about the nature of the level anticrossing effect in NV color centers in diamond under zero magnetic field.
Article
Optics
Zong-Da Zhang, Si-Yu Yin, Li-Cheng Wang, Ying-De Wang, Yun-Fei Li, Zhen-Nan Tian, Qi-Dai Chen
Summary: An array of single NV centers was prepared using the femtosecond laser direct writing method to address the accuracy and consistency issues in static magnetic field detection. The prepared NV centers have fewer defects and good stress uniformity, with an average spatial positioning error of only 0.2 μm. This array enables high accuracy measurement of magnetic field vector and gradient.
Article
Materials Science, Multidisciplinary
Lukas Razinkovas, Marek Maciaszek, Friedemann Reinhard, Marcus W. Doherty, Audrius Alkauskas
Summary: The study conducted ab initio calculations on the photoionization characteristics of the NV center in diamond, revealing the mechanism of spin polarization induced electron state transition. These findings are crucial for interpreting and designing experiments on photoionization of NV centers.
Article
Chemistry, Physical
Mariusz Mrozek, Mateusz Schabikowski, Marzena Mitura-Nowak, Janusz Lekki, Marta Marszalek, Adam M. Wojciechowski, Wojciech Gawlik
Summary: The experimental study focused on the longitudinal and transverse relaxation of negatively charged nitrogen-vacancy centers in diamond monocrystals prepared by 1.8 MeV proton implantation. Results showed that proton implantation technique can be versatile in controlling the production of nitrogen-vacancy color centers in thin films.
Article
Physics, Applied
King Cho Wong, San Lam Ng, Kin On Ho, Yang Shen, Jiahao Wu, Kwing To Lai, Man Yin Leung, Wai Kuen Leung, Durga Bhaktavatsala Rao Dasari, Andrej Denisenko, Joerg Wrachtrup, Sen Yang
Summary: Single color centers in solid have emerged as a promising physical platform for quantum information science. This work proposes and demonstrates a distinct high-temperature annealing (HTA) approach for creating high-quality nitrogen vacancy (N-V) centers in implantation-free diamonds. The created N-V centers possess stable and Fourier-transform-limited optical spectra, and HTA strongly reduces noise sources and improves decoherence time and sensitivity. The study also explores the vacancy activation and defect reformation in spin baths and color centers.
PHYSICAL REVIEW APPLIED
(2022)
Article
Chemistry, Multidisciplinary
Changhao Li, Rouhollah Soleyman, Mohammad Kohandel, Paola Cappellaro
Summary: A molecular transducer based on NV centers has been proposed to convert SARS-CoV-2 RNA into magnetic noise signal for optical readout. This sensor demonstrates high sensitivity, low false negative rate, and fast detection of the virus.
Article
Chemistry, Multidisciplinary
Nattakarn Suntornwipat, Saman Majdi, Markus Gabrysch, Kiran Kumar Kovi, Viktor Djurberg, Ian Friel, Daniel J. Twitchen, Jan Isberg
Summary: Researchers demonstrate electrostatic control of valley currents in ultrapure single-crystalline diamond, proposing a model to interpret experimental data and paving the way for the development of valleytronic devices.
Article
Quantum Science & Technology
Abhishek Kejriwal, Dasika Shishir, Sumiran Pujari, Kasturi Saha
Summary: Nitrogen-Vacancy (NV) centers in diamonds act as a room-temperature platform for various quantum technologies, and a freezing protocol has been demonstrated to isolate the intrinsic nuclear spin of an NV center from a noisy electromagnetic environment. Numerical simulations show that this protocol effectively shields the nuclear spin from strong drive or noise fields. The suppression of quantum correlations in the frozen nuclear spin regime, measured through the quantum discord of the electron-nuclear spin system, can be instrumental in extending the storage times of NV nuclear spin-based quantum memories in hybrid quantum systems.
QUANTUM INFORMATION PROCESSING
(2023)
Article
Materials Science, Multidisciplinary
Sergei Masis, Sergey Hazanov, Nir Alfasi, Oleg Shtempluck, Eyal Buks
Summary: The study uses optical detection of magnetic resonance to investigate dipolar interaction in diamond between nitrogen-vacancy color centers of different crystallographic orientations and substitutional nitrogen defects. Optical measurements of resonant spin flip-flips and flip-flops between different spin ensembles in diamond are demonstrated. The findings could aid in optimizing cross-polarization protocols to enhance the sensitivity of diamond-based detectors.
Article
Physics, Applied
Hiroshige Deguchi, Tsukasa Hayashi, Hiroya Saito, Yoshiki Nishibayashi, Minori Teramoto, Masanori Fujiwara, Hiroki Morishita, Norikazu Mizuochi, Natsuo Tatsumi
Summary: We have developed a compact and portable measuring instrument using diamond NV centers, which can be powered by a laptop computer's USB 3.0. The portability is achieved by low power consumption of the optics, thanks to the diamond corner cube that enhances the current of the photodiode by 2.1 times compared to planar diamond, and the microwave source that reduced power consumption by 20 dB using a microwave resonator with a λ/4 open stub to magnetically drive the NV center. These results contribute to the social implementation of diamond sensors.
APPLIED PHYSICS EXPRESS
(2023)
Article
Optics
Muhib Omar, Andreas Conta, Andreas Westerhoff, Raphael Hasse, Georgios Chatzidrosos, Dmitry Budker, Arne Wickenbrock
Summary: We propose a design to enhance the collected fluorescence of nitrogen-vacancy color centers in diamond for quantum-sensing. Our experimental results demonstrate a 3.8-fold increase in collected fluorescence when comparing opposite emitting surfaces, which is consistent with ray-tracing simulation. This design improves the sensitivity in optical readout-based measurements of various physical quantities.
Review
Physics, Applied
Sebastien Pezzagna, Jan Meijer
Summary: Artificial atoms like NV centers in diamond have enabled the realization of fully functional qubits in a solid at room temperature. Although quantum sensing has been established and advancements are being made, the development of a quantum computer remains challenging due to technical reasons and limitations of available materials. Ideas are being proposed to overcome these limitations, and the field is constantly progressing with promising concepts for development.
APPLIED PHYSICS REVIEWS
(2021)
Article
Optics
V. P. Mironov, E. N. Tel'minov, D. E. Genin, E. I. Lipatov, M. A. Shulepov, A. E. Dormidonov, A. D. Savvin, A. P. Yelisseyev, V. G. Vins
Summary: The characteristics of diamond affecting laser generation in the context of NV-diamond laser creation were investigated using optical pumping by the second harmonic of the Nd:YAG laser. Nonlinear intensity increase in the 700-750 nm spectral region and a pronounced peak of superluminescence at approximately 718 nm were observed under high intensity irradiation. Nonlinear pumping radiation absorption and accumulation of NV centers in the excited state were detected with increasing pumping intensity. The calculated position of the photoluminescence band matches experimental data closely, considering the population inversion density of the color centers and diamond's absorption spectrum.
APPLIED PHYSICS B-LASERS AND OPTICS
(2023)
Article
Chemistry, Physical
Mostapha Dakhchoune, Luis Francisco Villalobos, Rocio Semino, Lingmei Liu, Mojtaba Rezaei, Pascal Schouwink, Claudia Esther Avalos, Paul Baade, Vanessa Wood, Yu Han, Michele Ceriotti, Kumar Varoon Agrawal
Summary: A new method for synthesizing molecular-sieving zeolitic membranes has been developed, which involves exfoliating single layers of zeolite precursor RUB-15 followed by a condensation reaction to produce thin films with high selectivity for gas separation, especially for precombustion carbon capture.
Article
Physics, Applied
Shiming Song, Min Jiang, Yushu Qin, Yu Tong, Wenzhe Zhang, Xi Qin, Ren-Bao Liu, Xinhua Peng
Summary: This study demonstrates a spin-noise spectroscopic approach to investigate collision phenomena. By measuring optical polarization rotation noise, the approach provides a tool to observe collision-sensitive spin noise and determine key collision parameters.
PHYSICAL REVIEW APPLIED
(2022)
Article
Chemistry, Multidisciplinary
Yue Cui, Weng-Hang Leong, Chu-Feng Liu, Kangwei Xia, Xi Feng, Csilla Gergely, Ren-Bao Liu, Quan Li
Summary: By using nitrogen-vacancy centers in nano-diamonds, nonlocal deformation sensing on biorelevant soft matters during AFM indentation is demonstrated, providing data for studying elasticity and capillarity without requiring detailed knowledge about the local contact.
Article
Chemistry, Multidisciplinary
Benjamin P. Le Monnier, Louisa Savereide, Murat Kilic, Raphael Schnyder, Mounir D. Mensi, Claudia E. Avalos, Ursula Rothlisberger, Jeremy S. Luterbacher
Summary: This paper presents a method for synthesizing atomically precise, supported multiatom catalysts using liquid-phase atomic layer deposition. The technique involves consecutive grafting reactions under mild conditions to build supported active sites atom by atom. The controlled synthesis process allows for the growth of well-defined multinuclear clusters, which were verified and characterized using various methods. Propane dehydrogenation was used as a probe reaction to demonstrate the potential of controlling and tailoring the activity and stability of these catalytic clusters.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Physics, Multidisciplinary
Mantas Simenas, James O'Sullivan, Oscar W. Kennedy, Sen Lin, Sarah Fearn, Christoph W. Zollitsch, Gavin Dold, Tobias Schmitt, Peter Schueffelgen, Ren-Bao Liu, John J. L. Morton
Summary: Impurity spins in crystal matrices, particularly group-VI 125Te(+) donors implanted into silicon surfaces, show promise in microwave-domain applications. Surface band bending can ionize near-surface Te to spin-active Te+ state, and optical illumination can further control the Te donor charge state. Zero-field 3.5 GHz clock transition extends spin coherence times to over 1 ms, an order of magnitude longer than other near-surface spin systems.
PHYSICAL REVIEW LETTERS
(2022)
Article
Multidisciplinary Sciences
Jonas Meinel, Vadim Vorobyov, Ping Wang, Boris Yavkin, Mathias Pfender, Hitoshi Sumiya, Shinobu Onoda, Junichi Isoya, Ren-Bao Liu, J. Wrachtrup
Summary: Conventional nonlinear spectroscopy can only access a limited set of correlations in a quantum system, while quantum nonlinear spectroscopy can extract arbitrary types and orders of correlations. The authors used quantum nonlinear spectroscopy to measure fourth-order correlations and identified Gaussian noises, random-phased AC fields, and quantum spins.
NATURE COMMUNICATIONS
(2022)
Review
Chemistry, Multidisciplinary
Gang-Qin Liu, Ren-Bao Liu, Quan Li
Summary: Nanothermometry is in high demand for various research fields. The ideal thermometer should have reliable temperature interpretation, high sensitivity, fast response, and applicability in various environments. Diamond with NV centers shows promise for nanothermometry due to its sharp resonances and multimodal sensing capabilities. However, the sensitivity and temperature range of NV-based nanothermometry still need improvement. This Account focuses on enhancing the sensitivity and working temperature range of diamond-based nanothermometry through transducer-based concepts and hybrid structures.
ACCOUNTS OF CHEMICAL RESEARCH
(2023)
Article
Energy & Fuels
Xiaodong Tang, Wanfen Pu, Dan Wang, Shanshan Qu, Yiming Rui, Xuepei Zhao, Renbao Liu
Summary: This study thoroughly investigates the non-isothermal oxidation characteristics of natural gas, focusing on methane. By conducting experiments using an accelerating rate calorimeter (ARC), the oxidation characteristics and kinetic parameters under different conditions are analyzed. The results show that there is no uniform self-exothermic phenomenon under depleted conditions and rock debris has a catalytic effect on methane oxidation. Based on the experimental results, it is suggested to raise the temperature near the wellhole of gas reservoirs to achieve successful and stable combustion.
Article
Physics, Applied
Ping Wang, Wen Yang, Renbao Liu
Summary: We propose a method for constructing projective measurement of nonconserved nuclear spin through a weakly coupled auxiliary electron spin. The method involves applying suitable quantum control on the electron to create a weak quantum nondemolition measurement on the nuclear spin, which can then be cascaded into a projective measurement. We identify tunable parameters to select the appropriate observables and control the strength of the weak measurement, and demonstrate its stability against experimental control errors.
PHYSICAL REVIEW APPLIED
(2023)
Editorial Material
Materials Science, Multidisciplinary
Nicholas E. Geacintov, Claudia E. Avalos, Stephanie S. Lee
ORGANIC ELECTRONICS
(2023)
Article
Optics
Wen -Long Ma, Shu-Shen Li, Ren-Bao Liu
Summary: This paper investigates the relationship between projective measurements and generalized quantum measurements, and provides a proof that projective measurements can be constructed from sequential generalized measurements under certain conditions. The paper also proposes a specific scheme for constructing projective measurements of a quantum system using sequential generalized measurements, and shows that a single ancilla qubit is sufficient for mediating sequential generalized measurements to construct arbitrary projective measurements.
Article
Materials Science, Multidisciplinary
M. Rancic, M. Le Dantec, S. Lin, S. Bertaina, T. Chaneliere, D. Serrano, P. Goldner, R. B. Liu, E. Flurin, D. Esteve, D. Vion, P. Bertet
Summary: In this study, a 4.4 GHz superconducting planar microresonator was lithographically fabricated on a CaWO4 crystal doped with Er ions at a concentration of 20 ppm relative to Ca. The spectral diffusion processes that limit the electron-spin coherence of Er ions at millikelvin temperatures were characterized using two- and three-pulse echo sequences, showing a strong temperature dependence on the coherence time.
Article
Geochemistry & Geophysics
Haijing Wang, Boqin Sun, Zheng Yang, Scott J. Seltzer, Marcus O. Wigand
Summary: Nuclear magnetic resonance (NMR) logging is a powerful formation evaluation technology that provides mineralogy-independent porosity and helps distinguish different types of water and fluids. High-field NMR has high sensitivity and spectral resolution, which can provide more detailed information for the characterization of geological samples.
Article
Physics, Multidisciplinary
Ning Wang, Chu-Feng Liu, Jing-Wei Fan, Xi Feng, Weng-Hang Leong, Amit Finkler, Andrej Denisenko, Joerg Wrachtrup, Quan Li, Ren-Bao Liu
Summary: The study demonstrates that the relatively strong hyperfine coupling from a first-shell C-13 nuclear spin provides an effective bias field to achieve zero-field magnetometry and suppress charge noises in shallow nitrogen-vacancy centers. The hyperfine bias greatly enhances magnetic sensitivity and allows simultaneous measurement of magnetic noises at two different frequencies, providing spectral information of high-frequency noises.
PHYSICAL REVIEW RESEARCH
(2022)
Article
Physics, Multidisciplinary
Ping Wang, Chong Chen, Ren-Bao Liu
Summary: Utilizing quantum correlations of quantum targets allows for sensing schemes without classical counterparts, even when the second-order classical correlation of a quantum target is concealed by classical noise, higher-order quantum correlations can distinguish the quantum target from the noise, proposing a noise-free sensing scheme. This finding suggests that exploring quantumness of sensors and targets can realize the full potential of quantum sensing, offering new opportunities such as sensitivity beyond classical approaches and non-classical correlations in quantum many-body physics.
CHINESE PHYSICS LETTERS
(2021)
