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Two-Dimensional Nonvolatile Valley Spin Valve.
ACS Nano
January 2025
Department of Physics and Astronomy & Nebraska Center for Materials and Nanoscience, University of Nebraska, Lincoln, Nebraska 68588-0299, United States.
A spin valve represents a well-established device concept in magnetic memory technologies, whose functionality is determined by electron transmission, controlled by the relative alignment of magnetic moments of the two ferromagnetic layers. Recently, the advent of valleytronics has conceptualized a valley spin valve (VSV)─a device that utilizes the valley degree of freedom and spin-valley locking to achieve a similar valve effect without relying on magnetism. In this study, we propose a nonvolatile VSV (-VSV) based on a two-dimensional (2D) ferroelectric semiconductor where resistance of -VSV is controlled by a ferroelectric domain wall between two uniformly polarized domains.
View Article and Find Full Text PDFA case study on risk assessment and novel anchoring technology for potential collapse of high and steep giant dangerous rock mass.
Sci Rep
January 2025
Railway Engineering Research Institute, China Academy of Railway Sciences Co., Ltd, Beijing, 100081, China.
Dangerous rock masses in mountainous areas seriously threaten the construction and operation of engineering with potential disaster hazards, especially the unpredictability and sudden occurrence of rockfall, which poses a huge challenge. This paper presents a systematic risk assessment and disposal of high and steep giant dangerous rock masses, which can pose a serious threat to railway operation. Using comprehensive methods such as on-site investigation, limit equilibrium method, and simulation analysis of rockfall trajectory, the possibility and potential harm of collapse and rockfall of giant dangerous rock masses are analyzed and corresponding remediation measures are proposed.
View Article and Find Full Text PDFEnhancement of Spontaneous Orientation Polarization in Glassy Organic Semiconductor Mixtures.
J Phys Chem B
January 2025
Institut für Physik, Universität Augsburg, 86159 Augsburg, Germany.
The alignment of permanent dipole moments and the resulting spontaneous orientation polarization (SOP) are commonly observed in evaporated neat films of polar organic molecules and lead to a so-called giant surface potential. In the case of mixed films, often enhanced molecular orientation is observed, i.e.
View Article and Find Full Text PDFRabies Virus Phosphoprotein Exhibits Thermoresponsive Phase Separation with a Lower Critical Solution Temperature.
J Mol Biol
January 2025
Université Grenoble Alpes, CNRS, CEA, Institut de Biologie Structurale, 38000, Grenoble, France. Electronic address:
Rabies virus (RABV) generates membrane-less liquid organelles (Negri bodies) in the cytoplasm of its host cell, where genome transcription and replication and nucleocapsid assembly take place, but the mechanisms of their assembly and maturation remain to be explained. An essential component of the viral RNA synthesizing machine, the phosphoprotein (P), acts as a scaffold protein for the assembly of these condensates. This intrinsically disordered protein forms star-shaped dimers with N-terminal negatively charged flexible arms and C-terminal globular domains exhibiting a large dipole moment.
View Article and Find Full Text PDFInvestigations on full-Heusler alloys MnTaAl and MnWAl for spintronic and thermoelectric applications.
iScience
December 2024
College of Physical Science and Technology, Guangxi University, Nanning 530004, P.R. China.
Half-metallic materials are widely used as spintronic devices such as electrodes, magnetic tunneling junction, and giant magnetoresistance. In this work, we have systematically investigated the structural stability, Gilbert damping, electronic structure, and magnetism together with exchange interactions and Curie temperatures for MnTaAl and MnWAl alloys. Initially, we estimate their structural stability and offer possible phase synthesis.
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