A5100356637- Magnetic and transport properties of perovskites and related materials
- Shape Memory Alloy Transformations
- Heusler alloys: electronic and magnetic properties
- Advanced Condensed Matter Physics
- Magnetic Properties and Applications
- Multiferroics and related materials
- Magnetic Properties of Alloys
- Magnetic properties of thin films
- MXene and MAX Phase Materials
- Advanced Thermoelectric Materials and Devices
- Thermal Expansion and Ionic Conductivity
- Electronic and Structural Properties of Oxides
- Ferroelectric and Piezoelectric Materials
- Rare-earth and actinide compounds
- High Entropy Alloys Studies
- Physics of Superconductivity and Magnetism
- Magneto-Optical Properties and Applications
- Random lasers and scattering media
- Chalcogenide Semiconductor Thin Films
- Perovskite Materials and Applications
- Iron-based superconductors research
- Optical properties and cooling technologies in crystalline materials
- Induction Heating and Inverter Technology
- Nanoparticle-Based Drug Delivery
- Advanced Welding Techniques Analysis
Qujing Normal University
2016-2025
Yunnan University
2024
National Laboratory for Superconductivity
2024
Institute of Physics
2023-2024
Chinese Academy of Sciences
2023-2024
University of Chinese Academy of Sciences
2023-2024
Northeastern University
2021-2023
New Higher Education Institute - NEWUNI
2022
Beijing University of Chemical Technology
2017-2020
Shanghai University
2009-2015
Solid state refrigeration technology relies on the high-performance materials with remarkable caloric properties. Here, we demonstrate a large elastocaloric effect through stress-induced martensitic transformation in Heusler-type Co50V35Ga14Ni1 polycrystalline alloy. By rapidly removing moderate compressive stress of 400 MPa, adiabatic temperature change up to −12.1 K is achieved. Moreover, high cyclability more than 4000 loading/unloading cycles also obtained. With combination and good...
Due to the strong interlayer coupling between multiple degrees of freedom, oxide heterostructures have demonstrated exotic properties that are not shown by their bulk counterparts. One most interesting is ferromagnetism at interface formed "nonferromagnetic" compounds. Here we report on interfacial ferromagnetic phase induced in superlattices consisting two paramagnetic oxides CaRuO3 (CRO) and LaNiO3 (LNO). By varying sublayer thickness superlattice period, demonstrate order has been...
Recently, the impact of disorder on topological properties has attracted significant attention in photonics, especially intriguing disorder-induced phase transitions photonic Anderson insulators (PTAIs). However, reported PTAIs are based time-reversal symmetry broken systems or quasi-three-dimensional invariant system, both which would limit applications integrated optics. Here, we realize a symmetric two-dimensional PTAI silicon platform within near-IR wavelength range, taking advantageous...
Magnetic proximity-induced magnetism in paramagnetic LaNiO3 (LNO) has spurred intensive investigations the past decade. However, no consensus been reached so far regarding magnetic order LNO layers relevant heterostructures. This paper reports a layered ferromagnetic structure for (111)-oriented LNO/LaMnO3 (LMO) superlattices. It is found that each period of superlattice consisted an insulating LNO-interfacial phase (five unit cells thickness, ∼1.1 nm), metallic LNO-inner phase, poorly...
In this work, we have developed a ferromagnetic shape memory alloy Co50V34Ga16 with metamagnetic martensitic transformation (MT) from the high-magnetization austenitic phase to low-magnetization phase. As consequence of strong coupling between structure and magnetic degrees freedom, MT is relatively sensitive external field, thus giving rise field-induced reverse MT. Associated such unique behavior, both considerable inverse magnetocaloric effect (9.6 J/kg K) magnetostrain (0.07%) also been...
This study performed a systematic experimental investigation into the structural, magnetic, and transport properties of Co2VGa Heusler alloy, which was theoretically predicted to exhibit half-metallic ferromagnetism. It has been experimentally found that studied alloy relatively high-ordered L21 cubic structure at room temperature orders ferromagnetically below ~350 K. Interestingly, by fitting electric data with properly governing equations in two different regions, two-magnon scattering...
We present an extensive study of the exchange bias properties and glassy behavior in low-doped La1−xSrxCoO3 cobaltites. The temperature dependences dc magnetization ac susceptibility indicate that spin glass state exists even at high magnetic fields. field-cooled hysteresis loops exhibit both horizontal vertical shifts. shift decreases with increasing measuring field approaches zero around 40 kOe, while still exist 80 kOe. It is suggested these two shifts may have different origins....
Abstract Artificial oxide heterostructures have provided promising platforms for the exploration of emergent quantum phases with extraordinary properties. One most interesting phenomena is interfacial magnetism formed between two non‐magnetic compounds. Here, a robust ferromagnetic phase emerged at (111)‐oriented heterointerface paramagnetic CaRuO 3 and diamagnetic SrTiO reported. The Curie temperature as high ≈155 K saturation magnetization large ≈1.3 µ B per formula unit (111)‐CaRuO /SrTiO...
Abstract Barocaloric materials are particularly promising for green and efficient solid-state cooling technology because of their great potential in terms performance. However, intermetallic with outstanding barocaloric effects under low hydrostatic pressure especially lacking, which has severely delayed the development refrigeration. Here, a rare-earth La-Ce-Fe-Si-H, we achieve giant specific temperature change 8 K per kbar according to direct measurements adiabatic Δ T BCE pressure, is...
In this study, we reported the influence of replacing Cu for Ni on crystal structure, martensitic transformation, and magnetic properties polycrystalline 50 −x x Mn 37 13 ( = 5 7) quaternary alloys. It was found that studied alloys undergo a first‐order transformation from ferromagnetic austenite to paramagnetic martensite near room temperature. With increasing content, significantly shifts toward lower temperature, fully splits off Curie transition austenite, which enhances difference in...
In the present study, polycrystalline Co50V34Ga16−xFex (1≤x≤2) quaternary Heusler alloys were fabricated by arc-melting method. It was found that they undergo a paramagnetic martensitic transformation (MT) from L21-type cubic austenitic structure to D022 tetragonal structure. With increase of Fe concentration, MT shifts towards higher temperature range, which is strongly related variation valence electron concentration. Moreover, it also exhibited every alloy sensitive applied hydrostatic...
Thin film of Ni50Mn35In15 Heusler alloy was prepared on MgO(001) substrate by epitaxial growth in an ultra-high vacuum (UHV) chamber a Pulsed Laser Deposition (PLD) method. The process monitored situ reflection high energy electron diffraction (RHEED) and the structure checked ex X-ray (XRD), which indicates that quality single crystal with face-centered-cubic (fcc) could be stabilized MgO(001). Magnetic property measurement also conducted at various temperatures using physical system...