Article
Optics
Hiroyuki Kurosawa, Satoshi Tomita, Kei Sawada, Toshihiro Nakanishi, Tetsuya Ueda
Summary: A numerical study predicts and experimentally verifies that a metamolecule with magnetism and chirality exhibits a giant magnetochiral (MCh) effect at microwave frequencies, which is of significant importance for practical applications.
Article
Acoustics
Olivier Lartillot, Kristian Nymoen, Guilherme Schmidt Camara, Anne Danielsen
Summary: This article introduces a novel approach to computationally estimate attack regions in audio recordings, aiming to precisely pinpoint the attack position with specific principles. The proposed method shows a significant increase in precision, but at the expense of recall when applied to P-center localization judgments.
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
(2021)
Article
Computer Science, Information Systems
R. Villalpando-Hernandez, D. Munoz-Rodriguez, C. Vargas-Rosarles, E. Mera Avila
Summary: This paper presents a novel position location technique that can estimate the location of a mobile device based on a reduced number of scattered observation signals. The technique utilizes measurements of angle of arrival, path length obtained from time of arrival measurements, and Doppler Shifted Frequency. By utilizing the principle of same Doppler collinearity, the proposed technique provides feasible locating regions for scatterers that are collinear with the transmitter.
Article
Multidisciplinary Sciences
Quentin Stern, Samuel Francois Cousin, Frederic Mentink-Vigier, Arthur Cesar Pinon, Stuart James Elliott, Olivier Cala, Sami Jannin
Summary: Dynamic nuclear polarization is a widely used tool for enhancing the sensitivity of nuclear magnetic resonance spectroscopy and imaging, but its practical applicability is limited by the spin diffusion barrier, which hinders efficient polarization transfer between highly polarized nuclei and bulk nuclei.
Article
Chemistry, Multidisciplinary
Feng Ge, Yi Du, Yan He
Summary: This study investigated the endocytosis dynamics of two different ErbB receptors using dark-field microscopy. The results showed that the internalization rate of cAuNRs was faster than that of tAuNRs. This research provides insights into the endocytosis process of the ErbB receptor family at the nanometer scale and could be potentially useful for developing cancer treatment strategies.
Article
Chemistry, Physical
Quan Liu, Frank Wackenhut, Liangxuan Wang, Otto Hauler, Juan Carlos Roldao, Pierre-Michel Adam, Marc Brecht, Johannes Gierschner, Alfred J. Meixner
Summary: Tautomerization is a fundamental chemical reaction involving proton relocation, presenting a challenge in studying the optical properties of tautomeric species. Single-molecule experiments reveal the reorientation of the transition dipole moment during tautomerization in molecules such as hypericin. By combining image pattern flipping observations with time-dependent density functional theory calculations, this study identifies four tautomers and their conversion path in hypericin molecules.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Biology
Soham Chakraborty, Deep Chaudhuri, Souradeep Banerjee, Madhu Bhatt, Shubhasis Haldar
Summary: The role of chaperones in talin mechanics and stability is investigated. Chaperones were found to affect adhesion proteins' stability by changing their folding mechanics, with unfoldases reducing the unfolding force and foldases increasing it. Chaperones directly reshape the energy landscape of talin, influencing its force-dependent interactions and adhesion dynamics.
COMMUNICATIONS BIOLOGY
(2022)
Article
Physics, Applied
V. I. Zubkov, Iana V. Ivanova, M. Weyers
Summary: Resonant-tunneling conductivity was observed in a doped heterostructure with a single quantum well, revealing competition between thermionic and tunneling escape mechanisms. The role of a quasi-bound level in resonant tunneling of electrons was demonstrated, providing a theoretical basis for the development of new resonant tunneling diodes.
APPLIED PHYSICS LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Akira Nagaoka, Koji Kimura, Artoni Kelvin R. Ang, Yasuhiro Takabayashi, Kenji Yoshino, Qingde Sun, Baoying Dou, Su-Huai Wei, Koichi Hayashi, Kensuke Nishioka
Summary: Point defect chemistry plays a crucial role in material properties and device performance. We directly observed the local structure of As dopant in CdTe single crystals using X-ray fluorescence holography (XFH). Our results revealed that As substitutes both Cd and Te sites. This study expands the understanding of point defects in II-VI semiconductors through a combination of experimental XFH and theoretical studies.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Na Kong, Jing Guo, Shuai Chang, Jie Pan, Jianmei Wang, Jianghao Zhou, Jing Liu, Hong Zhou, Frederick M. Pfeffer, Jingquan Liu, Colin J. Barrow, Jin He, Wenrong Yang
Summary: Real-time observation of chemical bond formation at the single-molecule level poses a challenge in organic and biomolecular chemistry. The use of plasmonic nanocavities, along with surface-enhanced Raman spectroscopy (SERS) and single-entity electrochemistry (EC) measurements, allows for the dynamic evolution of amide bond formation in the aminolysis reaction to be probed with high sensitivity. This study demonstrates the value of using single-entity EC-SERS for studying chemical reactions at the single-molecule level.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Geochemistry & Geophysics
Thi Mai Nguyen, Jeffrey P. Walker, Nan Ye, Jayantha Kodikara
Summary: This study investigated the influence of environmental conditions on microwave brightness temperature measurements in a warehouse with concrete and steel construction. The results showed that the built environment significantly affected the TB observed by the sensor and indoor measurements could not be directly used for reliable soil moisture retrieval. The environment correction equation provided substantial improvement in estimating soil moisture from indoor measurements.
IEEE GEOSCIENCE AND REMOTE SENSING LETTERS
(2022)
Article
Multidisciplinary Sciences
Huanyi Xue, Ruijie Qian, Weikang Lu, Xue Gong, Ludi Qin, Zhenyang Zhong, Zhenghua An, Lidong Chen, Wei Lu
Summary: The study of thermoelectric behaviors in miniatured transistors is crucial for bottom-level thermal management. Recent progress in nanothermetry enables the observation of temperature profiles in nanostructured materials and molecular junctions. This study addresses the thermoelectric effect in silicon and discovers the potential for on-chip refrigeration using silicon itself.
NATURE COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Zhouyang Zhang, Yiran Ying, Ziyu Wu, Jiawei Huang, Min Gan, Haitao Zhang, Haitao Huang, Yangbo Zhou, Linfeng Fei
Summary: Single-crystal-to-single-crystal (SCSC) phase transformation is essential for the controllable synthesis of advanced materials. However, understanding the atomic-scale mechanisms during SCSC transformation remains a challenge due to the lack of direct experimental probes. In this study, using in-situ transmission electron microscopy, the nucleation and growth mechanisms of a hexagonal phase in a monoclinic matrix during a heating-induced structural transformation were observed. The findings provide crucial insights into the microscopic mechanisms and kinetics of solid-state phase transitions.
Article
Multidisciplinary Sciences
Alon Gutfreund, Hisakazu Matsuki, Vadim Plastovets, Avia Noah, Laura Gorzawski, Nofar Fridman, Guang Yang, Alexander Buzdin, Oded Millo, Jason W. A. Robinson, Yonathan Anahory
Summary: The interplay between magnetism and superconductivity can give rise to unconventional proximity and Josephson effects. A recent phenomenon attracting considerable attention is the superconducting diode effect, where a nonreciprocal critical current emerges. Although superconducting diodes based on superconductor/ferromagnet (S/F) bilayers were demonstrated more than a decade ago, the underlying mechanism remains unclear. The authors directly observe asymmetric vortex dynamics that reveal the mechanism behind the superconducting vortex diode effect in Nb/EuS (S/F) bilayers.
NATURE COMMUNICATIONS
(2023)
Article
Multidisciplinary Sciences
Hongbin Chi, Yang Liu, Ziyi Li, Wanxin Chen, Yi He
Summary: The authors investigate the correlation between the microstructure and flexibility of flexible covalent organic frameworks. They discover that the flexibility is determined by the pedal motion around rigid imine bonds.
NATURE COMMUNICATIONS
(2023)
Article
Physics, Applied
Toshiyuki Kodama, Satoshi Tomita, Takeshi Kato, Daiki Oshima, Satoshi Iwata, Satoshi Okamoto, Nobuaki Kikuchi, Osamu Kitakami, Nobuyoshi Hosoito, Hisao Yanagi
PHYSICAL REVIEW APPLIED
(2016)
Review
Physics, Applied
Satoshi Tomita, Hiroyuki Kurosawa, Tetsuya Ueda, Kei Sawada
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2018)
Article
Materials Science, Multidisciplinary
Hitoshi Mizuno, Kazunori Nagano, Satoshi Tomita, Hisao Yanagi, Ichiro Hiromitsu
Article
Physics, Applied
Toshiyuki Kodama, Yusaku Kusanagi, Satoshi Okamoto, Nobuaki Kikuchi, Osamu Kitakami, Satoshi Tomita, Nobuyoshi Hosoito, Hisao Yanagi
PHYSICAL REVIEW APPLIED
(2018)
Article
Engineering, Electrical & Electronic
Chiharu Mitsumata, Satoshi Tomita, Takeshi Seki, Masaki Mizuguchi
IEEE TRANSACTIONS ON MAGNETICS
(2012)
Article
Materials Science, Multidisciplinary
Satoshi Tomita, Yuuka Kosaka, Hisao Yanagi, Kei Sawada
Article
Materials Science, Multidisciplinary
Yuto Moritake, Kazuyuki Nakayama, Toshihiro Suzuki, Hiroyuki Kurosawa, Toshiyuki Kodama, Satoshi Tomita, Hisao Yanagi, Teruya Ishihara
Article
Physics, Applied
Satoshi Tomita, Tomomi Suwa, Patricia Riego, Andreas Berger, Nobuyoshi Hosoito, Hisao Yanagi
PHYSICAL REVIEW APPLIED
(2019)
Article
Materials Science, Multidisciplinary
Satoshi Tomita, Kei Sawada, Shotaro Nagai, Atsushi Sanada, Nobuyuki Hisamoto, Tetsuya Ueda
Article
Chemistry, Physical
Tomomi Suwa, Satoshi Tomita, Nobuyoshi Hosoito, Hisao Yanagi
Article
Materials Science, Multidisciplinary
Satoshi Tomita, Hiroyuki Kurosawa, Kei Sawada, Tetsuya Ueda
Article
Physics, Applied
Patricia Riego, Satoshi Tomita, Kaoru Murakami, Toshiyuki Kodama, Nobuyoshi Hosoito, Hisao Yanagi, Andreas Berger
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2017)
Proceedings Paper
Materials Science, Multidisciplinary
Yuuka Kosaka, Kazutaka Egami, Satoshi Tomita, Hisao Yanagi
PHYSICA STATUS SOLIDI C: CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 9, NO 12
(2012)
Article
Materials Science, Multidisciplinary
Nobuyuki Hisamoto, Tetsuya Ueda, Kei Sawada, Satoshi Tomita
