A5054783707- Ferroelectric and Piezoelectric Materials
- Multiferroics and related materials
- Educational Reforms and Innovations
- Ferroelectric and Negative Capacitance Devices
- Advanced Memory and Neural Computing
- Electronic and Structural Properties of Oxides
- Medical Research and Treatments
- Advanced Thermoelectric Materials and Devices
- Acoustic Wave Resonator Technologies
- Innovative Educational Techniques
- Regional Development and Environment
- Higher Education Governance and Development
- Topological Materials and Phenomena
- Advanced Condensed Matter Physics
- Geophysical and Geoelectrical Methods
- Physics of Superconductivity and Magnetism
- Semiconductor materials and devices
- MXene and MAX Phase Materials
- Educational Technology and Pedagogy
- Magnetic and transport properties of perovskites and related materials
- Thermal properties of materials
- Accounting Education and Careers
- Seismic Imaging and Inversion Techniques
- Ultrasonics and Acoustic Wave Propagation
- Advanced Photocatalysis Techniques
Harbin Institute of Technology
2022-2025
Dalian Polytechnic University
2018-2019
Abstract In the realm of ferroelectric memories, HfO 2 -based ferroelectrics stand out because their exceptional CMOS compatibility and scalability. Nevertheless, switchable polarization switching speed are not on par with those perovskite ferroelectrics. It is widely acknowledged that defects play a crucial role in stabilizing metastable polar phase . Simultaneously, also pin domain walls impede process, ultimately rendering sluggish Herein, we present an effective strategy involving...
Effective control of heat transfer is vital for energy saving and carbon emission reduction. In contrast to achievements in electrical conduction, active much more challenging. Ferroelectrics are promising candidates thermal switching as a result their tunable domain structures. However, ratios ferroelectrics low (<1.2). We report that high-quality antiferroelectric PbZrO3 epitaxial thin films exhibit high-contrast (>2.2), fast-speed (<150 nanoseconds), long-lifetime (>107) under small...
The antiferroelectric-to-ferroelectric (AFE-FE) phase transition has attracted considerable attention due to its potential applications in high-strain transducers, thermal switching, and pulsed-power devices. To deepen our understanding of this enable functionalities, ultrafast dynamics, especially lattice dynamics antiferroelectricity, are essential be demonstrated. In work, the picosecond acoustics technique is applied measure sound velocity a high-quality PbZrO3 epitaxial thin film with...
Antiferroelectric PbZrO3 has attracted renewed interest in recent years because of its unique properties and wide range potential applications. However, the nature antiferroelectricity evolution with electric field temperature remain controversial, mostly due to difficulty obtaining high-quality single-crystal samples. The lack consensus regarding phase transition is not only important on a fundamental side but also greatly hinders further Herein, epitaxial thin films are successfully...
Abstract Dielectric capacitors are desired for electronics and electrical power systems because of their fast charge–discharge speed high‐power density. Nevertheless, dielectric typically exhibit lower energy densities in comparison to other storage like batteries or fuel cells. Among dielectrics, antiferroelectrics have shown great promise high density characteristic double hysteresis loops. However, current antiferroelectric still face challenges low efficiency breakdown strength due large...
Electrocaloric cooling, with the advantages of zero global warming potential, high efficiency, smart size, etc., is regarded as a promising next-generation technology for green refrigeration. The exotic negative electrocaloric effect (ECE) in antiferroelectric materials forms basis to improve caloric cooling power density, but underlying mechanism remains elusive. By using fully first-principles method, we successfully simulate electric field-triggered structural phase transition from...
Abstract The origin of insulating ferromagnetism in epitaxial LaCoO 3 films under tensile strain remains elusive despite extensive research efforts are devoted. Surprisingly, the spin state its Co ions, main parameter ferromagnetism, is still to be determined. Here, thin systematically investigated clarify mechanism strain‐induced using element‐specific X‐ray absorption spectroscopy and dichroism. Combining with configuration interaction cluster calculations, it unambiguously demonstrated...
It has been more than 70 years since the first anti-ferroelectric was discovered. Its unique electric-field-induced phase transition behavior shows great potential applications in fields of energy storage, electrocaloric, negative capacitance, thermal switching, etc. With development advanced synthesis technology and trend miniaturization integration devices, high-quality functional oxide films have received attention. A large number studies shown that thin film exhibits novel properties...
In the realm of ferroelectric memories, HfO2-based ferroelectrics stand out because their exceptional CMOS compatibility and scalability. Nevertheless, switchable polarization switching speed are not on par with those perovskite ferroelectrics. It is widely acknowledged that defects play a crucial role in stabilizing metastable polar phase HfO2. Simultaneously, also pin domain walls impede process, ultimately rendering sluggish Herein, we present an effective strategy involving...
Anti-ferroelectric thin films are renowned for their signature double hysteresis loops and sheds light on the distinguished energy storage capabilities of dielectric capacitors in modern electronic devices. However, anti-ferroelectric still facing dual challenges low density efficiency to achieve state-of-the-art performance. Their large sharp first-order phase transition usually results a easy breakdown, severely obscuring its future application. In this study, we demonstrate that...
Abstract Thin ferroelectric layers are capable of generating large dielectric and electromechanical responses at relatively low voltages, thus can be utilized in various applications including energy storage, harvesting, sensors, actuators. Among ferroelectrics, relaxor ferroelectrics (1 − x )Pb(Mg 1/3 Nb 2/3 )O 3 PbTiO particularly interesting due to their superior piezoelectric properties. However, the thin films significantly suppressed relative bulk counterparts. The physical mechanism...
With the rapid development of China's economy, more and undergraduate colleges universities economics management have regarded accounting as a compulsory course.However, for non-accounting students, purpose their study is obviously not accounting, although it School Economics Management, but because strong professionalism learning difficulty great.Therefore, this paper explores problems faced by students in courses, finds that following are clear: teaching objectives clear, curriculum system...
Antiferroelectrics have received blooming interests because of a wide range potential applications in energy storage, solid-state cooling, thermal switch, transducer, actuation, and memory devices. Many those are the most prospective thin film form. The antiferroelectric ordering films is highly sensitive to rich set factors, such as lattice strain, thickness, surface interface effects well stoichiometry. To unlock full these materials design high-quality for functional devices,...
Human capital plays an important role in the development of social industry.High-quality skilled personnel are basis for innovation industry.At present, it is difficult to balance supply and demand human industrial application.The main reason just cultivated by education system correspond with enterprises a short time, there problems sustainable college students our country.Therefore, joint training mechanism should be established promote capital.
Under the popularization of higher education, supply chain management education is an important way to improve efficiency education.Based on research employment college graduates, this paper introduces theory into personnel training system colleges and universities, regards universities as core enterprises, regard enrollment, training, other related departments nodes in builds talents Supply model.The innovation survey links theories with improvement employability university students, finds...
Aging of the global population is a major issue in present age. The rapid aging bound to pose great challenges country's economy, society and environment. pension for needs be solved urgently. construction an adequate endowed community rehabilitating old people living peace can effective way solve problem endowment aged. However, at present, there huge gap livable community. It current task build sustainable based on elderly.
Collaborative innovation not only is a collaborative platform and optimization inside outside the school, but also emphasizes incubation application of scientific technological resources within school. The article first describes innovative production platforms discusses connotation industrial in colleges universities; then accurately analyzes path synthesis two typical materials polymer direction: sodium alginate feather keratin composite fiber, acrylate emulsion, explains combination with...