A5003929078- Ferroelectric and Piezoelectric Materials
- Multiferroics and related materials
- Refrigeration and Air Conditioning Technologies
- Magnetic and transport properties of perovskites and related materials
- Advanced Sensor and Energy Harvesting Materials
- Dielectric materials and actuators
- Magnetic properties of thin films
- Thermodynamic and Exergetic Analyses of Power and Cooling Systems
- Acoustic Wave Resonator Technologies
- Advanced Thermodynamic Systems and Engines
- Microwave Dielectric Ceramics Synthesis
- ZnO doping and properties
- Electronic and Structural Properties of Oxides
- Advanced Sensor and Control Systems
- Heat Transfer and Optimization
- Gas Sensing Nanomaterials and Sensors
- Magneto-Optical Properties and Applications
- Advanced Materials and Mechanics
- Advanced Condensed Matter Physics
- Power Systems and Renewable Energy
- Semiconductor materials and devices
- Advanced Algorithms and Applications
- Dielectric properties of ceramics
- Magnetic Properties and Synthesis of Ferrites
- Magnetic Field Sensors Techniques
Xi'an Jiaotong University
2016-2025
Lanzhou University of Technology
2015-2025
Anhui University of Traditional Chinese Medicine
2024
University of Science and Technology Beijing
2023-2024
Guangzhou Vocational College of Science and Technology
2024
Guangzhou Medical University
2024
Shenyang Institute of Engineering
2021
Xi'an Technological University
2020-2021
Ministry of Education of the People's Republic of China
2020
Wenzhou University
2016-2017
Flexible ferroelectrics High-quality ferroelectric materials, which polarize in response to an electric field, are usually oxides that crack when bent. Dong et al. found high-quality membranes of barium titanate surprisingly flexible and super-elastic. These films accommodate large strains through dynamic evolution nanodomains during deformation. This discovery is important for developing more robust devices. Science , this issue p. 475
Abstract Advancements in wearable electronics and Internet of Things (IoT) sensors have catalyzed the need for effective micro‐energy harvesting. Piezoelectric nanogenerators (PENGs) are ideal due to their high conversion efficiency durability. However, contrast between piezoelectric coefficients brittle inorganic ceramics lower superior flexibility biocompatibility organic polymers poses a significant challenge. This work introduces novel multilayer composite PENG, integrating...
Chemotherapy is a crucial adjuvant method of treating breast cancer, but it fails to achieve preferable prognosis as the malignant cells eventually develop drug-resistance. Reduced chemotherapeutic sensitivity primarily caused by endogenous and exogenous resistance during treatment. Cuproptosis newly discovered immunogenic cell death (ICD), characterized accumulation copper (Cu) ions inside tumor cells. However, intracellular Cu ion concentrations can hardly reach desired levels induce...
Phase transition could enhance superior elasticity and flexibility in freestanding single-crystalline multiferroic oxide membranes.
One of the central challenges in realizing multiferroics-based magnetoelectric memories is to switch perpendicular magnetic anisotropy (PMA) with a control voltage. In this study, we demonstrate electrical flipping magnetization between out-of-plane and in-plane directions (Co/Pt)3/(011) Pb(Mg1/3Nb2/3)O3-PbTiO3 multiferroic heterostructures through voltage-controllable spin reorientation transition (SRT). The SRT onset temperature can be dramatically suppressed at least 200 K by applying an...
Abstract Self‐assembled membranes with periodic wrinkled patterns are the critical building blocks of various flexible electronics, where wrinkles usually designed and fabricated to provide distinct functionalities. These typically metallic organic materials good ductility that tolerant complex deformation. However, preparation oxide membranes, especially those intricate wrinkle patterns, is challenging due their inherently strong covalent or ionic bonding, which leads material crazing...
Finding an effective way to greatly tune spin Hall angle in a low power manner is of fundamental importance for tunable and energy-efficient spintronic devices. Recently, topological insulator Bi2Se3, having large intrinsic angle, show great capability generate strong current-induced spin-orbit torques. Here we demonstrate that the Bi2Se3 can be effectively tuned asymmetrically even enhanced about 600% reversibly by applying bipolar electric field across piezoelectric substrate. We reveal...
Dielectric capacitors are promising for high power energy storage, but their breakdown strength (Eb ) and density (Ue usually degrade rapidly at temperatures. Adding boron nitride (BN) nanosheets can improve the Eb high-temperature endurance with a limited Ue due to its low dielectric constant. Here, freestanding single-crystalline BaZr0.2 Ti0.8 O3 (BZT) membranes constant fabricated, introduced into BN doped polyetherimide (PEI) obtain laminated PEI-BN/BZT/PEI-BN composites. At room...
Abstract Inorganic/organic dielectric composites are very attractive for high energy density electrostatic capacitors. Usually, linear and ferroelectric materials chosen as inorganic fillers to improve storage performance. Antiferroelectric (AFE) materials, especially single‐crystalline AFE oxides, have relatively efficiency higher than dielectrics or ferroelectrics. However, adding oxides into polymers construct composite with improved performance remains elusive. In this study,...
Abstract The ultrahigh flexibility and elasticity achieved in freestanding single-crystalline ferroelectric oxide membranes have attracted much attention recently. However, for antiferroelectric oxides, the limit fundamental mechanism their are still not explored clearly. Here, we successfully fabricate PbZrO 3 by a water-soluble sacrificial layer technique. They exhibit good antiferroelectricity commensurate/incommensurate modulated microstructure. Moreover, they also shape recoverability...
Ionic-liquid gating on a functional thin film with low voltage has drawn lot of attention due to rich chemical, electronic, and magnetic phenomena at the interface. Here, key challenge in quantitative determination voltage-controlled anisotropy (VCMA) Au/[DEME]+ [TFSI]- /Co field-effect transistor heterostructures is addressed. The change as response precisely detected by situ electron spin resonance measurements. A reversible up 219 Oe achieved 1.5 V room temperature, corresponding record...
In this work, we demonstrate an approach to improve the recoverable energy-storage performance and piezoelectric response of 0.4Bi(Ni1/2Zr1/2)O3-0.6PbTiO3 (BNZ-PT) relaxor-ferroelectric film capacitors by utilizing seeding layers engineering. Highly (100)-oriented BNZ-PT films were prepared through alternatively introducing PbO layers, effects seeds on microstructure electrical properties investigated in details. Compared without seeds, PbO-seeded exhibit significant enhancement dielectric...
To meet the demand of developing compatible and energy-efficient flexible spintronics, voltage manipulation magnetism on soft substrates is in demand. Here, a tunable field-effect transistor structure by ionic gel (IG) gating perpendicular synthetic anti-ferromagnetic nanostructure demonstrated. As result, interlayer Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction can be tuned electrically at room temperature. With circuit voltage, (AFM) ordering enhanced or converted into an...
The recoverable energy storage performance of 400 nm undoped and 4 mol. % Nb-doped PbZr0.4Ti0.6O3 ferroelectric capacitors was studied. DC dielectric strength improved from 1351 kV/cm (undoped) to 1878 (Nb-doped), the latter had high density up 20 J/cm3 with efficiency 70%, benefiting mainly linear response. This study suggests that donor doping is an effective way improve illustrates significant role response in ferroelectrics for power applications.
The trend of mobile Internet requires portable and wearable devices as bio-device interfaces. Electric field control magnetism is a promising approach to achieve compact, light-weight, energy-efficient devices. Within flexible sandwich heterostructure, perpendicular magnetic anisotropy switching was achieved via low-voltage gating an ionic gel in mica/Ta/(Pt/Co)x/Pt/ionic gel/Pt, where (Pt/Co)x acted functional layer. By conducting situ VSM, EPR, MOKE measurements, 1098 Oe change determined...
High–energy‐storage density capacitors with thin films of 0.5 Bi ( Ni 1/2 Ti ) O 3 –0.5 PbTiO BNT – PT were fabricated by chemical solution deposition technique on Pt / SiO 2 Si substrates. The dense pure‐phase perovskite structure could be obtained annealing at 750°C. High capacitance (~1925 nF/cm 1 kHz) and extremely high‐energy (~45.1 J/cm under an electric field 2250 kV/cm achieved room temperature. energy‐storage efficiency varied little in a wide temperature range from −190°C to 250°C....
Motivated by the most recent progresses in both magnonics (spin dynamics) and multiferroics fields, this work aims at manipulation magnetoelectric coupling effect. Here, voltage control of magnonics, particularly surface spin waves, is achieved La 0.7 Sr 0.3 MnO 3 /0.7Pb(Mg 1/3 Nb 2/3 )O ‐0.3PbTiO multiferroic heterostructures. With electron resonance method, a large 135 Oe shift wave (≈7 times greater than conventional voltage‐induced ferromagnetic 20 Oe) determined. A model spin‐lattice...
Electric field (E-field) modulation of perpendicular magnetic anisotropy (PMA) switching, in an energy-efficient manner, is great potential to realize magnetoelectric (ME) memories and other ME devices. Voltage control the spin-reorientation transition (SRT) that allows moment rotating between out-of-plane in-plane direction thereby crucial. In this work, a remarkable change up 1572 Oe achieved under small operation voltage 4 V through ionic liquid (IL) gating SRT Au/[DEME]+ [TFSI]-...
The energy density and efficiency deteriorate slightly from room temperature to 150 °C.
Oxide nanosprings have attracted many research interests because of their anticorrosion, high-temperature tolerance, oxidation resistance, and enhanced-mechanic-response from unique helix structures, enabling various applications like nanomanipulators, nanomotors, nanoswitches, sensors, energy harvesters. However, preparing oxide is a challenge for intrinsic lack elasticity. Here, an approach self-assembled, epitaxial, ferroelectric with built-in strain due to the lattice mismatch in...