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Open AccessTunable magnetism in titanium-based kagome metals by rare-earth engineering and high pressure
Rare-earth engineering is an effective way to introduce and tune magnetism in topological kagome materials, which have been acting as a fertile platform to investigate the quantum interactions between geometry...
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Article
Open AccessRoom-temperature sub-100 nm Néel-type skyrmions in non-stoichiometric van der Waals ferromagnet Fe3-xGaTe2 with ultrafast laser writability
Realizing room-temperature magnetic skyrmions in two-dimensional van der Waals ferromagnets offers unparalleled prospects for future spintronic applications. However, due to the intrinsic spin fluctuations tha...
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Article
Superconductivity above 70 K observed in lutetium polyhydrides
The binary polyhydrides of heavy rare earth lutetium that shares a similar valence electron configuration to lanthanum have been experimentally discovered to be superconductive. The lutetium polyhydrides were ...
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Open AccessAuthor Correction: Chirality flips of skyrmion bubbles
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Open AccessChirality flips of skyrmion bubbles
The investigation of three-dimensional magnetic textures and chirality switching has attracted enormous interest from the perspective of fundamental research. Here, the three-dimensional magnetic structures of...
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Article
Open AccessTuning photoluminescence behaviors in strained monolayer belt-like MoS2 crystals confined on TiO2(001) surface
We report on a monolayer (ML) MoS2 belt-like single crystal directly fabricated on the Rutile-TiO2(001) surface via chemical vapor deposition (CVD). We find that the photoluminescence (PL) behaviors in the ML MoS
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Open AccessRecord high Tc element superconductivity achieved in titanium
It is challenging to search for high Tc superconductivity (SC) in transition metal elements wherein d electrons are usually not favored by conventional BCS theory. Here we report experimental discovery of surpris...
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Open AccessSuperconductivity above 200 K discovered in superhydrides of calcium
Searching for superconductivity with Tc near room temperature is of great interest both for fundamental science & many potential applications. Here we report the experimental discovery of superconductivity with m...
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Open AccessA combinatory ferroelectric compound bridging simple ABO3 and A-site-ordered quadruple perovskite
The simple ABO3 and A-site-ordered AA′3B4O12 perovskites represent two types of classical perovskite functional materials. There are well-known simple perovskites with ferroelectric properties, while there is sti...
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Open AccessHigh-temperature ferromagnetic semiconductor with a field-tunable green fluorescent effect
Ferromagnetic semiconductors with luminescent effects provide a unique platform for studying magneto-electric-optical multifunctional devices. However, little is known about such materials with spin ordering w...
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Unprecedented non-hysteretic superelasticity of [001]-oriented NiCoFeGa single crystals
Superelasticity associated with the martensitic transformation has found a broad range of engineering applications1,2. However, the intrinsic hysteresis3 and temperature sensitivity4 of the first-order phase tran...
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Open AccessSymmetry mismatch-driven perpendicular magnetic anisotropy for perovskite/brownmillerite heterostructures
Grou** different transition metal oxides together by interface engineering is an important route toward emergent phenomenon. While most of the previous works focused on the interface effects in perovskite/pe...
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Article
Giant enhancement and anomalous temperature dependence of magnetism in monodispersed NiPt2 nanoparticles
A simple yet general one-step solvothermal method is applied to synthesize sub-7 nm monodispersed single-crystal NiPt2 nanoparticles (NPs) with the morphology of truncated octahedrons in the alloying state of dis...
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Open AccessAdipocyte adaptive immunity mediates diet-induced adipose inflammation and insulin resistance by decreasing adipose Treg cells
Obesity leads to a switch in subsets of CD4+ T cell in adipose tissue, characterized by an increase in IFNγ producing Th1 cells and a decrease in anti-inflammatory regulatory T (Treg) cells, which impairs systemi...
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Dynamic observation of oxygen vacancies in hafnia layer by in situ transmission electron microscopy
The charge-trap** process, with HfO2 film as the charge-capturing layer, has been investigated by using in situ electron energy-loss spectroscopy and in situ energy-filter image under positive external bias. Th...
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Open AccessIn situ TEM Observation of Resistance Switching in Titanate Based Device
After decades of efforts, the research on resistance switching (RS) behavior in transition metal oxides has shifted to the stage of verifying the proposed models by direct experimental evidences. In this paper...
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Surface activity of antiperovskite manganese nitrides
Antiperovskite manganese nitrides Mn3MN (M = Zn, Ni, Cu…) have been extensively studied in the past decade due to their many interesting properties, such as negative thermal expansion. To get a better understandi...
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New quantum matters: Build up versus high pressure tuning
In this article we briefly review new quantum functional compounds primarily based on our recent works. We will highlight the effects of pressures on both materials synthesis and quantum tuning. The contents i...
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Open AccessDirect Observation of Multiferroic Vortex Domains in YMnO3
Topological vortices with swirling ferroelectric, magnetic and structural anti-phase relationship in hexagonal RMnO3 (R = Ho to Lu, Y and Sc) have attracted much attention because of their intriguing behaviors. H...
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Superconducting properties of “111” type LiFeAs iron arsenide single crystals
LiFeAs single crystal has been grown with superconducting transition temperature T c comparable to that of polycrystals. A magnetic transition is found at about 160 K, which suggests the c...
