钴基蜂窝状磁体 BaCo2(AsO4)2 中的磁连续体
The authors present time-domain terahertz spectroscopy measurements on BaCo2(AsO4)2, a promising 3d transition-metal-based quantum spin liquid candidate.
仿突触滞后负微分电导行为的动态分子开关
To realize electronic operations beyond the von Neumann bottleneck, a new type of switch that can mimic self-learning is needed. Here, the authors demonstrate all-in-one-place logic and memory operations based on dynamic molecular switch that can emulate brain-like synaptic and Pavlovian response, bringing the field a step closer to molecular-scale hardware.
单层α-RuCl3中结构对称性破缺驱动的磁各向异性反转
The authors report a crossover from easy-plane to easy-axis magnetic anisotropy in monolayer RuCl3, which they attribute to an in-plane distortion of the Cl atoms observed in electron diffraction that modify the non-Kitaev exchange terms. The results are useful for overcoming the challenge of realizing a quantum spin liquid.
Kitaev磁体α-RuCl3中拓扑玻色子的平面热霍尔效应
The authors report a strongly temperature-dependent thermal conductivity at low temperature, consistent with topological bosonic modes in a Chern-insulator-like model.
间隙掺杂微量多价阳离子抑制金属卤化物钙钛矿中的离子迁移
Ion migration has a detrimental effect on the performance and stability of halide perovskite optoelectronics. Here, the authors incorporated a small dosage of high-valence neodymium cation to suppress this, with a minimal impact on the lattice microstrain.
四维跟踪电荷载流子揭示多晶卤化物钙钛矿中有效的垂直电荷传输
A discrepancy exists between the low diffusion coefficients and near-unity charge collection efficiencies achieved in practical halide perovskite solar cells. Here, the authors explain this through the discovery of strong heterogeneity in vertical charge diffusivities in a 3D perovskite film.
基于单层 MoS2 光电晶体管阵列的有源像素传感器矩阵
Low-power and compact active pixel sensor (APS) matrices are desired for resource-limited edge devices. Here, the authors report a small-footprint APS matrix based on monolayer MoS2 phototransistors arrays exhibiting spectral uniformity, reconfigurable photoresponsivity and de-noising capabilities at low energy consumption.
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