A5087532845- Perovskite Materials and Applications
- Magnetic properties of thin films
- Organic Light-Emitting Diodes Research
- Quantum and electron transport phenomena
- Molecular Junctions and Nanostructures
- Organic Electronics and Photovoltaics
- Topological Materials and Phenomena
- Conducting polymers and applications
- Magnetic and transport properties of perovskites and related materials
- Magnetism in coordination complexes
- Advanced Condensed Matter Physics
- Solid-state spectroscopy and crystallography
- 2D Materials and Applications
- Magneto-Optical Properties and Applications
- Organic and Molecular Conductors Research
- Multiferroics and related materials
- Physics of Superconductivity and Magnetism
- Advanced Memory and Neural Computing
- Magnetic Properties and Applications
- Mechanical and Optical Resonators
- X-ray Diffraction in Crystallography
- Atomic and Subatomic Physics Research
- Electronic and Structural Properties of Oxides
- Crystallization and Solubility Studies
- Cold Atom Physics and Bose-Einstein Condensates
North Carolina State University
2017-2025
University of Utah
2013-2022
Kunming University of Science and Technology
2022
Chinese Academy of Sciences
2009-2021
Wuhan Institute of Physics and Mathematics
2021
University of Chicago
2021
Center for Integrated Nanotechnologies
2021
Los Alamos National Laboratory
2021
Argonne National Laboratory
2021
Fudan University
2014-2018
Recently the hybrid organic-inorganic trihalide perovskites have shown remarkable performance as active layers in photovoltaic and other optoelectronic devices. However, their spin characteristic properties not been fully studied, although due to relatively large spin-orbit coupling these materials may show great promise for spintronic applications. Here we demonstrate spin-polarized carrier injection into methylammonium lead bromide films from metallic ferromagnetic electrodes two...
Quantum technology has made tremendous strides over the past two decades with remarkable advances in materials engineering, circuit design, and dynamic operation. In particular, integration of different quantum modules benefited from hybrid systems, which provide an important pathway for harnessing natural advantages complementary systems engineering new functionalities. This review article focuses on current frontiers respect to utilizing magnons novel Magnons are fundamental excitations...
Interfacial diffusion between magnetic electrodes and organic spacer layers is a serious problem in the spintronics which complicates attempts to understand spin-dependent transport mechanism hurts achievement of desirably high magnetoresistance (MR). We deposit nanodots instead atoms onto layer using buffer assist growth. Spin valves this method exhibit sharper interface giant MR up ∼300%. Analysis current-voltage characteristics indicates that carrier injection correlates with observed MR.
The first decade of organic spintronics research has benefitted from the analogy and previous experience inorganic field, coupled with unlimited versatility materials synthesis. At same time, field developed into an attractive promising its own, rich physics unique potential applications. We review here a set significant milestones achieved in spintronic devices such as spin valves, bipolar spin-valves, hybrid organic/inorganic light emitting diodes comparison representative devices. also...
The recent convergence of chiral molecules with metal halide perovskite frameworks gives rise to an interesting family systems: two-dimensional, hybrid organic-inorganic perovskites (chiral-HOIPs). While possessing photovoltaic properties traditional HOIPs, this class materials is endowed chirality through its organic ligands in which the degeneracy electron spin charge transport broken. That is, chirality-induced selectivity (CISS) effect manifests, making it a promising platform bridge...
Non-Hermitian Hamiltonians may still have real eigenvalues, provided that a combined parity-time (ƤƮ) symmetry exists. The prospect of ƤƮ has been explored in several physical systems such as photonics, acoustics, and electronics. eigenvalues these undergo transition from to complex at exceptional points (EPs), where the is broken. Here, we demonstrate existence EP magnonic devices composed two coupled magnets with different magnon losses. eigenfrequencies damping rates change crossing...
Recent discoveries of novel physics in two-dimensional (2D) magnetic materials have sparked the search new layered semiconductors. Compared to traditional inorganic 2D van der Waals crystals, hybrid organic–inorganic metal–halide frameworks offer significantly enhanced chemical and structural versatility, where their optical, electronic, properties can be readily modulated with both organic components. Here, we reported a series Fe–Cl-based double perovskites LnMIMIIICl8, [n = 4, L...
Abstract The integration of 2D van der Waals (vdW) magnets with topological insulators or heavy metals holds great potential for realizing next‐generation spintronic memory devices. However, achieving high‐efficiency spin–orbit torque (SOT) switching monolayer vdW at room temperature poses a significant challenge, particularly without an external magnetic field. Here, it is shown field‐free, deterministic, and nonvolatile SOT perpendicular magnetization in the monolayer, diluted...
Rashba spin–orbit coupling locks the spin with momentum of charge carriers at broken inversion interfaces, which could generate a large galvanic response. Here, we demonstrate spin-to-charge conversion (inverse Rashba–Edelstein effect) in KTaO3(111) two-dimensional electron systems. We explain results context electronic structure, orbital character, and texture interfaces. also show that angle dependence on in-plane magnetic field exhibits nontrivial behavior, matches symmetry Fermi states....
Reverse intersystem crossing (RISC) from triplet to singlet states has been recently introduced photophysics of organic chromophores. One type RISC occurs in donor (D)–acceptor (A) composites that form an exciplex manifold which the energy difference, Δ E ST between lowest (S 1 ) and (T levels is small (<100 meV) thus allowing at room temperature. This adds a delayed component photoluminescence emission widely known as thermally activated fluorescence. Here, it found electroluminescence...
Topological insulators (TIs) have emerged as some of the most efficient spin-to-charge convertors because their correlated spin-momentum locking at helical Dirac surface states. While endeavors been made to pursue large "charge-to-spin" conversions in novel TI materials using spin-torque-transfer geometries, reciprocal process "spin-to-charge" conversion, characterized by inverse Edelstein effect length (λIEE) prototypical material (Bi2Se3), remains moderate. Here, we demonstrate that,...
Solution-processed metal halide perovskite (MHP) single crystals (SCs) are in high demand for a growing number of printed electronic applications due to their superior optoelectronic properties compared polycrystalline thin films. There is an urgent need make SC fabrication facile, scalable, and compatible with the manufacturing infrastructure. Here, universal cosolvent evaporation (CSE) strategy presented by which SCs arrays produced directly on substrates via printing coating methods...
Hybrid magnonic systems are a newcomer for pursuing coherent information processing owing to their rich quantum engineering functionalities. One prototypical example is hybrid magnonics in antiferromagnets with an easy-plane anisotropy that resembles quantum-mechanically mixed two-level spin system through the coupling of acoustic and optical magnons. Generally, between these orthogonal modes forbidden due opposite parity. Here we show Dzyaloshinskii-Moriya-Interaction (DMI), chiral...
Organic spintronic devices have been appealing because of the long spin lifetime charge carriers in organic materials and their low cost, flexibility chemical diversity. In previous studies, control resistance valves is generally achieved by alignment magnetization directions two ferromagnetic electrodes, generating magnetoresistance. Here we employ a new knob to tune adding thin ferroelectric interfacial layer between electrode spacer: magnetoresistance valve depends strongly on history...
Abstract The hybrid organic–inorganic perovskites (HOIPs) form a new class of semiconductors which show promising optoelectronic device applications. Remarkably, the properties HOIP are tunable by changing chemical components their building blocks. Recently, spintronic and applications in devices have attracted substantial interest. Here impact component diversity HOIPs on is studied. Spin valve based with different organic cations halogen atoms fabricated. spin diffusion length obtained...
Nanosized perovskite ferroelectrics are widely employed in several electromechanical, photonics, and thermoelectric applications. Scaling of ferroelectric materials entails a severe reduction the lattice (phonon) thermal conductivity, particularly at sub-100 nm length scales. Such conductivity can be accurately predicted using information phonon mean free path (MFP) distribution. The current understanding MFP distribution is still inconclusive despite critical management implications. Here,...