A5025329282- Ferroelectric and Piezoelectric Materials
- Multiferroics and related materials
- Magnetic and transport properties of perovskites and related materials
- Advanced Condensed Matter Physics
- Electronic and Structural Properties of Oxides
- ZnO doping and properties
- Physics of Superconductivity and Magnetism
- Metal and Thin Film Mechanics
- Topological Materials and Phenomena
- Graphene research and applications
- Cardiac, Anesthesia and Surgical Outcomes
- Aortic Disease and Treatment Approaches
- Magneto-Optical Properties and Applications
- Thermal Radiation and Cooling Technologies
- Thermal properties of materials
- Advanced Memory and Neural Computing
- Diamond and Carbon-based Materials Research
- Nuclear materials and radiation effects
- Aortic aneurysm repair treatments
- Acoustic Wave Resonator Technologies
- Superconductivity in MgB2 and Alloys
- Transition Metal Oxide Nanomaterials
- Semiconductor materials and devices
- Rare-earth and actinide compounds
Nanjing Drum Tower Hospital
2025
Chinese Academy of Medical Sciences & Peking Union Medical College
2025
Xiamen University of Technology
2023
University at Albany, State University of New York
2020
Los Alamos National Laboratory
2012-2015
Center for Integrated Nanotechnologies
2012-2013
Texas A&M University
2010-2011
University of Cambridge
2010
Jawaharlal Nehru University
2010
We report magneto-transport studies of topological insulator Bi2Te3 thin films grown by pulsed laser deposition. A non-saturating linear-like magneto-resistance (MR) is observed at low temperatures in the magnetic field range from a few Tesla up to 60 Tesla. demonstrate that strong MR high can be well understood as weak antilocalization phenomena described Hikami-Larkin-Nagaoka theory. Our analysis suggests our system, insulator, elastic scattering time longer than spin-orbit time. briefly...
Vanadium oxide thin films with well controlled phases such as rhombohedra V2O3 and monoclinic VO2 were synthesized on Al2O3 (0001) substrates by optimizing the processing parameters of a polymer assisted deposition technique. X-ray diffraction high-resolution transmission electron microscopy studies revealed that both can be good epitaxial quality. The temperature dependency electrical resistivity demonstrated sharp metal-insulator transitions (MITs) for films. crystallinity strains in are...
Using polarized neutron reflectometry, we observe an induced magnetization of $75\ifmmode\pm\else\textpm\fi{}25\text{ }\mathrm{kA}/\mathrm{m}$ at 10 K in a ${\mathrm{La}}_{0.7}{\mathrm{Sr}}_{0.3}{\mathrm{MnO}}_{3}$ $(\mathrm{LSMO})/{\mathrm{BiFeO}}_{3}$ superlattice extending from the interface through several atomic layers ${\mathrm{BiFeO}}_{3}$ (BFO). The BFO is explained by density functional theory, where size band gap plays important role. Considering classical exchange field between...
We report highly resistive strongly ferromagnetic strained thin (∼30 nm) films of BiFe0.5Mn0.5O3 (BFMO) grown on (001) SrTiO3 substrates using pulsed laser deposition. The are tetragonal with high epitaxial quality and phase-purity. magnetic moment coercivity values at room temperature 90 emu/cc (0.58μB/B-site ion) H=3 kOe 274 Oe, respectively. transition is enhanced up to ∼600 K, which ∼500 K higher than for pure bulk BiMnO3. Strained BFMO a potential spin filter material tunnel devices.
Acute Type A Aortic Dissection (aTAAD) is a severe and life-threatening condition. While animal studies have suggested that ketorolac could slow the progression of aortic aneurysms dissections, clinical data on its efficacy in aTAAD patients remain limited. This study seeks to evaluate safety effectiveness this patient group. Patients were randomly assigned receive either or placebo (0.9% saline). Treatment began at least 2 h prior surgery (60 mg ml saline administered once intramuscularly)...
In this paper, we report low-field magnetoresistance observed in preferentially c-axis oriented La0.67Sr0.33MnO3:MgO composite films fabricated on (001) LaAlO3 substrates using a hybrid solution route. Addition of MgO the film results lowering Curie temperature (∼300 K) from that pure (∼360 K). The resistivity increases and highest decrease with addition MgO. This behavior is attributed to small substitution Mg2+ manganite lattice presence near grain boundaries, thus building tunneling...
The microstructure evolution of heteroepitaxial BaTiO3 (BTO) thin films grown on single crystal (001) SrTiO3 (STO) under Ne irradiation at room temperature was systematically investigated with special attention given to the behavior BTO/STO interface. Cross sectional transmission electron microscope investigations reveal that amorphization occurs top BTO film region. grains in dimensions 10–20 nm survived damage and maintained their original orientation. Other irradiation-induced defects...
10% Fe3O4–90% BiFeO3 nanocomposite thin films of 180 nm thickness were grown by pulsed laser deposition on SrTiO3 (011) single crystals. A 3–4 nanolamella structure Fe3O4 and was formed. While has the expected epitaxial relationship with substrate, grew epitaxially highly strained (7%). Compared to pure similar thickness, gives rise a greatly enhanced saturation magnetization 900 emu/cc, and, after field cooling, an coercivity 450 Oe. Piezoresponse force microscopy measurements show polar...
Abstract Given the paucity of single phase multiferroic materials (with large ferromagnetic moment), composite systems seem an attractive solution to realize magnetoelectric coupling between and ferroelectric order parameters. Despite having antiferromagnetic order, BiFeO 3 (BFO) has nevertheless been a key material due excellent properties at room temperature. We studied superlattice composed 8 repetitions 6 unit cells La 0.7 Sr 0.3 MnO (LSMO) grown on 5 BFO. Significant net uncompensated...
An emerging area in condensed matter physics is the use of multilayered heterostructures to enhance ferroelectricity complex oxides. Here we demonstrate that optically pumping carriers across interface between thin films a ferroelectric (FE) insulator and ferromagnetic metal can significantly FE polarization. The photoinduced state remains stable at low temperatures for over one day. This occurs through screening internal electric field by photoexcited carriers, leading larger, more...
Abstract Due to the high degree of integration and high-power-density, excessive heat accumulation significantly endangers performance electronics. Therefore, developing high-performance thermal interface materials has become particularly vital for ensuring regular operation Graphene-based attract great attention due graphene’s intrinsic excellent conductivity. However, internal defects in graphene lack interlayer conduction pathways between microsheets dramatically reduce conductivity...
Given the paucity of single phase multiferroic materials (with large ferromagnetic moment), composite systems seem an attractive solution in quest to realize magnetoelectric cou-pling between and ferroelectric order parameters. Despite having antiferro-magnetic order, BiFeO3 (BFO) has nevertheless been a key material this due excel-lent properties at room temperature. We studied superlattice composed 8 repetitions 6 unit cells La0.7Sr0.3MnO3 (LSMO) grown on 5 BFO. Significant net...
Terahertz time-domain spectroscopy was used to probe the magnetoconductivity of nanocolumns colossal magnetoresistance compound La <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">0.7</sub> Sr xmlns:xlink="http://www.w3.org/1999/xlink">0.3</sub> MnO xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> strained by a ZnO scaffold. The terahertz conductivity nanocomposite increased rapidly below metal-insulator transition. A magnetic field enhanced...
2001 International Conference on Solid State Devices and Materials,Influence of the Ferroelectric Polarization Properties Two-Dimensional Electron Gas in Pb(Zr0.53Ti0.47)O3/AlxGa1-xN/GaN Structures