Article
Chemistry, Physical
Shailesh Kumar, Cuo Wu, Danylo Komisar, Yinhui Kan, Liudmilla F. Kulikova, Valery A. Davydov, Viatcheslav N. Agafonov, Sergey Bozhevolnyi
Summary: Germanium vacancy (GeV) centers in diamonds are a promising platform for single-photon sources in quantum information technologies. Circular plasmonic Bragg cavities are used to enhance emission from single GeV centers in nanodiamonds, with a decay-rate enhancement of approximately 5.5 confirmed experimentally.
JOURNAL OF CHEMICAL PHYSICS
(2021)
Article
Quantum Science & Technology
Thea A. Vedelaar, Thamir H. Hamoh, Felipe P. Perona Martinez, Mayeul Chipaux, Romana Schirhagl
Summary: This article calibrates and optimizes the entire data processing flow from acquired raw data to extracted T1 using T1 relaxation curves acquired at different concentrations of gadolinium ions. The comparison is made between integrating the signal through an optimized window and fitting a known function on it. Furthermore, the three most commonly used fit models, single, bi, and stretched exponential, are compared.
ADVANCED QUANTUM TECHNOLOGIES
(2023)
Article
Physics, Applied
J. Christinck, F. Hirt, H. Hofer, Z. Liu, M. Etzkorn, T. Dunatov, M. Jaksic, J. Forneris, S. Kueck
Summary: We characterized the emission from a germanium-vacancy center in diamond using a microfabricated solid immersion lens in a confocal laser-scanning microscope setup. The photoluminescence was analyzed in terms of spectral distribution, excited state lifetime, second-order correlation function, and saturation behavior. Residual multi-photon probability was reduced using spectral and temporal filtering. System efficiency of the single-photon source was investigated and found to be consistent with calculated values. The results enable the future usage of the single-photon source in quantum radiometric experiments.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Runrun Li, Thea Vedelaar, Aldona Mzyk, Aryan Morita, Sandeep Kumar Padamati, Romana Schirhagl
Summary: In this study, diamond magnetometry was used for the first time to track the degradation of degradable polymers. By measuring the fluorescent defect in nanodiamonds and its magnetic surrounding, the degradation process can be followed in real time with unprecedented sensitivity. This method can be applied to different types of polymers.
Article
Chemistry, Multidisciplinary
Runrun Li, Thea Vedelaar, Aldona Mzyk, Aryan Morita, Sandeep Kumar Padamati, Romana Schirhagl
Summary: In this study, diamond magnetometry was used for the first time to track the degradation of degradable polymers with nanoscale precision. The method is based on the optical properties of a fluorescent defect in nanodiamonds, which changes according to their magnetic surroundings. By using T1 measurements, which are sensitive to magnetic noise, the degradation of the polymer can be followed in real time. The mobility of nanodiamonds also increased, allowing estimation of polymer viscosity. The degradation rates obtained using this approach were in good agreement with data from other testing methods.
Article
Chemistry, Multidisciplinary
Giulia Petrini, Giulia Tomagra, Ettore Bernardi, Ekaterina Moreva, Paolo Traina, Andrea Marcantoni, Federico Picollo, Klaudia Kvakova, Petr Cigler, Ivo Pietro Degiovanni, Valentina Carabelli, Marco Genovese
Summary: Temperature is a crucial parameter in regulating intracellular processes. Researchers have developed a nanoscale thermometer based on optically detected magnetic resonance in nanodiamonds to detect temperature variations associated with neuronal firing. This breakthrough provides a tool for studying localized temperature gradients under physiological and pathological conditions.
Article
Physics, Applied
F. M. Stuerner, Y. Liu, P. -o. Colard, M. Markham, F. Jelezko
Summary: Conventional quantum sensing techniques based on NV centers in diamond rely on fluorescence intensity to detect electronic spin states, but this method is susceptible to various factors that can reduce precision. Therefore, we have proposed a new sensing method that utilizes the excited-state lifetimes of NV centers for magnetometry experiments to improve measurement accuracy.
APPLIED PHYSICS LETTERS
(2021)
Article
Physics, Multidisciplinary
Jonas Gutsche, Ashkan Zand, Marek Bueltel, Artur Widera
Summary: Individual quantum emitters are fundamental building blocks for emerging quantum technologies, and collective effects might enhance performance even further. However, when using larger materials, the optical density of states is modified by the surrounding material, potentially masking the collective coupling in small domains due to transitions to bulk properties.
NEW JOURNAL OF PHYSICS
(2022)
Article
Optics
Zhonghao Li, Yanling Liang, Chong Shen, Zhenrong Shi, Huanfei Wen, Hao Guo, Zongmin Ma, Jun Tang, Jun Liu
Summary: In this study, wide-field tomography imaging of double circuits was performed using nitrogen-vacancy (NV) center ensembles in a diamond. By employing an inversion model and vector magnetic superposition, the magnetic-field distribution on the surface of the lower layer circuit was obtained. The results provide a simple and highly accurate reference for the detection and fault diagnosis of multilayer and integrated circuits.
Article
Chemistry, Applied
Maciej J. Glowacki, Mateusz Ficek, Miroslaw Sawczak, Anna Wcislo, Robert Bogdanowicz
Summary: This study proposes the use of fluorescent nanodiamonds as stable markers for investigating comestible liquids. By manipulating the composition and pH value of cocktails, the surface chemistry and stability of nanodiamonds can be altered. Nanodiamonds can be applied in monitoring the condition of foodstuffs and detecting toxins and pathogens.
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
Materials Science, Ceramics
Yayan Xu, Haiyong Gan, Zhanling Lu, Renguang Ye, Tanghan Chen, Junjie Zhang, Ying Tian, Shiqing Xu
Summary: The study introduces a novel method to incorporate nanodiamond with increased negative-charged nitrogen-vacancy content to 75.48% into tellurite germanate glass, resulting in a stable structure with enhanced fluorescence intensity. This robust nanodiamond in glass system holds promise for nanoparticle sensing and quantum metrology.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2021)
Article
Quantum Science & Technology
Till Lenz, Arne Wickenbrock, Fedor Jelezko, Gopalakrishnan Balasubramanian, Dmitry Budker
Summary: Single nitrogen-vacancy (NV) centers are commonly used as nanoscale sensors for measuring magnetic and electric fields, strain, and temperature. A new technique has been developed to perform magnetometry without requiring an external bias field, potentially enabling applications in superconductors and nuclear magnetic resonance.
QUANTUM SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Burhannudin Sutisna, Stoffel D. Janssens, Alessandro Giussani, David Vazquez-Cortes, Eliot Fried
Summary: Polymer-nanodiamond composites offer a promising solution for multifunctional hybrid materials, integrating the flexibility of polymers and unique properties of nanodiamonds. By utilizing colloidal coassembly between poly(isoprene-b-styrene-b-2-vinyl pyridine) block copolymers and nanodiamonds, researchers successfully achieved a uniform sub-50 nm nanodiamond distribution in nanocomposite films. This method holds potential for developing hierarchically ordered nanocomposites with diverse applications, from biotechnology to quantum devices.
Review
Chemistry, Multidisciplinary
Yingke Wu, Tanja Weil
Summary: Nanodiamond (ND) quantum sensing technology has great potential for ultrasensitive diagnosis and probing subcellular parameters at ambient conditions, enabling the detection of local temperature, magnetic fields, electric fields, or strain. It has significant implications for addressing current challenges in biology and medicine.
Article
Physics, Applied
Miriam Pena-Alvarez, Philip Dalladay-Simpson, Xiao-Di Liu, Veronika Afonina, Hui-Chao Zhang, Ross T. Howie, Eugene Gregoryanz
JOURNAL OF APPLIED PHYSICS
(2019)
Article
Optics
Fupan Feng, Weilong Zhang, Jian Zhang, Liren Lou, Wei Zhu, Guanzhong Wang
EUROPEAN PHYSICAL JOURNAL D
(2019)
Article
Chemistry, Physical
Jun-Feng Wang, Hao-Lei Zhou, Xiao Xiong, Qiang Li, Ze-Di Cheng, Zheng-Hao Liu, Fei-Fei Yan, Sheng-Ran Lin, Jin-Shi Xu, Guan-Zhong Wang, Lin Wu, Chuan-Feng Li, Guang-Can Guo
Article
Multidisciplinary Sciences
Xiao-Di Liu, Philip Dalladay-Simpson, Ross T. Howie, Hui-Chao Zhang, Wan Xu, Jack Binns, Graeme J. Ackland, Ho-Kwang Mao, Eugene Gregoryanz
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2020)
Article
Multidisciplinary Sciences
Huichao Zhang, Ondrej Toth, Xiao-Di Liu, Roberto Bini, Eugene Gregoryanz, Philip Dalladay-Simpson, Simone De Panfilis, Mario Santoro, Federico Aiace Gorelli, Roman Martonak
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2020)
Article
Chemistry, Physical
Miriam Pena-Alvarez, Veronika Afonina, Philip Dalladay-Simpson, Xiao-Di Liu, Ross T. Howie, Peter I. C. Cooke, Ioan B. Magdau, Graeme J. Ackland, Eugene Gregoryanz
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2020)
Article
Physics, Multidisciplinary
Wan Xu, Victor Naden Robinson, Xiao Zhang, Hui-Chao Zhang, Mary-Ellen Donnelly, Philip Dalladay-Simpson, Andreas Hermann, Xiao-Di Liu, Eugene Gregoryanz
Summary: Mixtures of ammonia and water are key components in the hot ice mantle regions of icy planets, with AHH playing a pivotal role in precipitating from water-rich mixtures under pressure. Spectroscopic measurements show the spontaneous ionization of AHH under compression, transforming from molecular to ionic states.
PHYSICAL REVIEW LETTERS
(2021)
Article
Chemistry, Physical
Wan Xu, Xiao-Di Liu, Miriam Pena-Alvarez, Hua-Chao Jiang, Philip Dalladay-Simpson, Benoit Coasne, Julien Haines, Eugene Gregoryanz, Mario Santoro
Summary: The study reveals that zeolite can accommodate a high concentration of H-2 molecules under high pressure, forming a unique glassy-like structure that is unattainable in pure hydrogen. Raman spectroscopy shows that the microporosity of the zeolite remains intact under high pressure, with intermolecular interactions influenced by the zeolite framework.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Chemistry, Physical
Jinwei Yan, Ondrej Toth, Wan Xu, Xiao-Di Liu, Eugene Gregoryanz, Philip Dalladay-Simpson, Zeming Qi, Shiyu Xie, Federico Gorelli, Roman Martonak, Mario Santoro
Summary: Research has shown that under high pressure, the polymer structure formed by carbon disulfide undergoes complex evolution, including the increase in C4/C3 ratio, partial reversion of structure, and partial disproportionation reaction.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Multidisciplinary Sciences
Ruilong Li, Dewei Rao, Jianbin Zhou, Geng Wu, Guanzhong Wang, Zixuan Zhu, Xiao Han, Rongbo Sun, Hai Li, Chao Wang, Wensheng Yan, Xusheng Zheng, Peixin Cui, Yuen Wu, Gongming Wang, Xun Hong
Summary: Amorphization-induced surface electronic states modulation significantly improves the polysulfides adsorption capability of cobaltous oxide, leading to enhanced performance and cycling stability of lithium-sulfur batteries. Compared to crystalline materials, amorphous cobaltous oxide nanosheets demonstrate superior adsorption of polysulfides, making them a promising candidate for cathode additives in Li-S batteries.
NATURE COMMUNICATIONS
(2021)
Article
Materials Science, Multidisciplinary
Yanpu Chen, Zishu Zhu, Haolei Zhou, Pingping Ma, Liren Lou, Wei Zhu, Guanzhong Wang
Summary: High c-axis orientation and three dimensional textured AlN films were deposited on sapphire by reactive ion assisted sputtering. Rapid thermal annealing (RTA) at 700-900 degrees C for 5 min released the film stress and changed the atomic arrangement near the substrate. In-plane tensile stress of deposited AlN films was released by RTA, as shown by the shift in the Raman spectra peaks. Multiple-cycle rapid thermal annealing was proposed to prevent peeling caused by long heating time.
DIAMOND AND RELATED MATERIALS
(2021)
Article
Instruments & Instrumentation
Jinwei Yan, Xiaodi Liu, Federico Aiace Gorelli, Haian Xu, Huichao Zhang, Huixin Hu, Eugene Gregoryanz, Philip Dalladay-Simpson
Summary: This study characterizes the compression rate of dynamic Diamond Anvil Cells (dDACs) and compares three different compression methods. The results demonstrate the highly controllable compression capabilities of different dDAC types under different temperature conditions.
REVIEW OF SCIENTIFIC INSTRUMENTS
(2022)
Article
Chemistry, Multidisciplinary
Lin Liu, Jun-Feng Wang, Xiao-Di Liu, Hai-An Xu, Jin-Ming Cui, Qiang Li, Ji-Yang Zhou, Wu-Xi Lin, Zhen-Xuan He, Wan Xu, Yu Wei, Zheng-Hao Liu, Pu Wang, Zhi-He Hao, Jun-Feng Ding, Hai-Ou Li, Wen Liu, Hao Li, Lixing You, Jin-Shi Xu, Eugene Gregoryanz, Chuan-Feng Li, Guang-Can Guo
Summary: By combining spin defects in silicon carbide with diamond anvil cell, the optical and spin properties of divacancy defects were studied at high pressures, and a pressure-induced magnetic phase transition was detected.
Article
Materials Science, Multidisciplinary
Peter I. C. Cooke, Ioan B. Magdau, Miriam Pena-Alvarez, Veronika Afonina, Philip Dalladay-Simpson, Xiao-Di Liu, Ross T. Howie, Eugene Gregoryanz, Graeme J. Ackland
Article
Chemistry, Multidisciplinary
Qiuyun Yang, Zihan Zhang, Wei Zhu, Guanzhong Wang
