Article
Chemistry, Physical
Debadarshini Samantaray, Meghabarna Gayen, Ahin Roy, Pavithra Bellare, Narayanan Ravishankar
Summary: Engineering anisotropic nanostructures of isotropic FCC metals like Au, Pt, or Pd requires a symmetry-breaking mechanism and a judicious selection of capping agents. The formation mechanism of ultrathin single-crystalline Pt nanowires was investigated using electron microscopy, showing that ligand binding to the Pt surface plays a crucial role in morphology and growth direction control. Adopting a ligand-exchange mechanism can separate Pt nanowire bundles into individual wires, crucial for improving their electrocatalytic activity.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Geochemistry & Geophysics
Yanming Huang, William W. Sager, Jinchang Zhang, Masako Tominaga, John Greene, Masao Nakanishi
Summary: Shatsky Rise oceanic plateau was formed during a period of frequent geomagnetic polarity reversals, with reconstruction of its tectonic evolution using magnetic anomalies. The study found that linear magnetic anomalies are ubiquitous in the region, suggesting that these volcanic edifices may have formed through spreading similar to mid-ocean ridges.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2021)
Article
Materials Science, Multidisciplinary
Wenting Huang, Christophe Gatel, Zi-An Li, Gunther Richter
Summary: Fe and Co nano-whiskers and Co platelets were synthesized without using any template or catalyst via physical vapor deposition. The synthesized whiskers exhibited single crystal structures and magnetic single domain structures, while both FCC and HCP crystal structures were found in the Co whiskers. Vortex state was observed in a high symmetry platelet.
MATERIALS & DESIGN
(2021)
Article
Chemistry, Physical
Wenxiang Chen, Xun Zhan, Renliang Yuan, Saran Pidaparthy, Adrian Xiao Bin Yong, Hyosung An, Zhichu Tang, Kaijun Yin, Arghya Patra, Heonjae Jeong, Cheng Zhang, Kim Ta, Zachary W. Riedel, Ryan M. Stephens, Daniel P. Shoemaker, Hong Yang, Andrew A. Gewirth, Paul Braun, Elif Ertekin, Jian-Min Zuo, Qian Chen
Summary: The formation of oriented phase domains and the development of strain gradient during the electrochemical ion-insertion process are quantitatively mapped. Results show the formation of domains with similar chemical identity but different orientations at the nanoscale. Electrolytes have a substantial impact on the transformation microstructure. The development of phase domains leads to large strain gradients and significantly affects the chemical diffusion coefficient.
Article
Chemistry, Multidisciplinary
Richard W. Dawidek, Thomas J. Hayward, Ian T. Vidamour, Thomas J. Broomhall, Guru Venkat, Mohanad Al Mamoori, Aidan Mullen, Stephan J. Kyle, Paul W. Fry, Nina-Juliane Steinke, Joshaniel F. K. Cooper, Francesco Maccherozzi, Sarnjeet S. Dhesi, Lucia Aballe, Michael Foerster, Jordi Prat, Eleni Vasilaki, Matthew O. A. Ellis, Dan A. Allwood
Summary: Emergent behaviors result from interactions between simple system elements that produce properties not exhibited by individual elements. This article discusses tunable emergent behaviors observed in arrays of interconnected magnetic ring-shaped nanowires under a rotating magnetic field. The arrays exhibit dynamic, field-dependent equilibrium domain wall populations despite diverse local magnetic configurations, making them a promising candidate for hardware-based reservoir computing.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Guidobeth Saez, Pablo Diaz, Nicolas Vidal-Silva, Juan Escrig, Eugenio E. Vogel
Summary: This paper studies the robustness of Bloch Points (BPs) in long nanowires used for information storage, depending on geometrical parameters and external magnetic fields.
RESULTS IN PHYSICS
(2022)
Article
Engineering, Multidisciplinary
Kyuil Cho, S. L. Bud'ko, P. C. Canfield
Summary: The temperature dependence of resistivity in single crystalline Nd2Fe14B was studied using a newly developed high temperature probe. It was found that there were anomalous discrete jumps in resistivity during cooling, accompanied by an increase in resistivity. This phenomenon may be attributed to a temperature dependent striction effect induced by the re-orientation of magnetic domains.
MEASUREMENT SCIENCE AND TECHNOLOGY
(2022)
Article
Food Science & Technology
Lisa J. Mauer
Summary: Deliquescence is an important property of water-soluble crystalline ingredients, which can affect the stability of foods. The deliquescence relative humidity of many crystalline food ingredients increases with the environmental humidity, with higher-solubility compounds being more sensitive to humidity changes.
CURRENT OPINION IN FOOD SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Maseim Bassis Kenmoe, Yosuke Kayanuma
Summary: We propose a theoretical model for the transmission and reflection of a spin-electron in a mesoscopic ring with a rotating localized magnetic moment. In the double-path model, quantum-path interference dramatically changes the transmission spectrum due to the Berry phase, leading to a strict prohibition of spin-flip transmission and reflection.
Article
Materials Science, Multidisciplinary
Jannis Maiwald, M. C. Aronson
Summary: In this study, the properties of La5AgPb3 are investigated and it is found to be a nonmagnetic metal with moderate correlations. Analysis of lattice vibrations and electron density reveals the unique structural features of La5AgPb3.
Article
Nanoscience & Nanotechnology
J. Askey, M. Hunt, W. Langbein, S. Ladak
Summary: Cylindrical magnetic nanowires have been extensively studied for their unique topology and dynamic properties. This study numerically investigates the domain wall magnetization textures of nickel nanowires and discovers a new domain wall type that combines aspects of both Bloch point walls and asymmetric transverse walls.
Article
Nanoscience & Nanotechnology
Fei-Xiang Tian, Hu Li, Minghui Zhu, Weifeng Tu, Dehai Lin, Yi-Fan Han
Summary: Different MnO2 polymorphs were studied for their properties in CO oxidation, with beta-MnO2 showing higher activity and stability. The mechanism of CO oxidation over MnO2 was proposed based on in situ spectra and intrinsic kinetic studies.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Multidisciplinary
D. X. Li, Y. Shimizu, A. Nakamura, Y. J. Sato, Y. Homma, F. Honda, D. Aoki
Summary: This study reports on the various physical property measurements of hexagonal AlB2-type single-crystalline U2PtSi3. It is found that the spin-glass effect exists in the single-crystalline sample, and the magnetic field responses differ along different directions. Moreover, the specific heat and electrical resistivity measurements also show distinct patterns. The possible mechanisms for these phenomena are discussed by comparing with other uranium intermetallic compounds.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Ctirad Cervinka, Vojtech Vaclav, Vaclav Pokorny, Petr Tous, Kvetoslav Ruzicka
Summary: Derivatives of benzene with multiple similar substituents have the potential to exhibit static disorder in their crystalline phases. This study combines computational and experimental approaches to analyze the thermodynamic properties and phase behavior of four target materials. The results demonstrate the significant impact of local disorder on sublimation equilibrium and polymorphism.
CRYSTAL GROWTH & DESIGN
(2023)
Article
Chemistry, Analytical
Benjamin Ducharne, Gael Sebald, Helene Petitpre, Hicham Lberni, Eric Wasniewski, Fan Zhang
Summary: Grinding burns occur when excessive heat is generated during grinding, leading to changes in local hardness and internal stress of steel components. This study explores alternative methods based on magnetization mechanisms to detect grinding burns, replacing the polluting nital etching method. By measuring multiple magnetic responses and correlating them with mechanical properties and grinding burn levels, it is found that mechanisms related to domain wall motions are the most reliable. Coercivity obtained from magnetic Barkhausen noise or magnetic incremental permeability measurements is the most correlated indicator, especially when strongly burned specimens are excluded.
