5 papers
Magnetic field-induced non-trivial Lifshitz transition in TaCo2Te2
Suman Kalyan Pradhan, Xiaoming Ma, Jicheng Wang +14
Magnetic-field-driven Lifshitz transitions are typically considered zero-temperature phenomena involving Fermi-surface reconstruction without symmetry breaking. Here, we report an…
Layer-dependent field-free switching of Néel vector in a van der Waals antiferromagnet
Haoran Guo, Zhongchong Lin, Jinhao Lu +12
Two-dimensional antiferromagnets, combining the dual advantages of van der Waals (vdW) and antiferromagnetic materials, provide an unprecedented platform for exploring emergent spi…
A self-learning magnetic Hopfield neural network with intrinsic gradient descent adaption
Chang Niu, Huanyu Zhang, Chuanlong Xu +14
Physical neural networks using physical materials and devices to mimic synapses and neurons offer an energy-efficient way to implement artificial neural networks. Yet, training phy…
Collective Pinning and Vortex Dynamics in type 2 superconducting thin films with Varying Magnetic Field
Yu Wu, Liangliang Guo, Renfei Wang +7
A perpendicular magnetic field penetrating a thin type-II superconductor slab produces vortices, with one vortex per flux quantum, h/2e. The vortices interact repulsively and form…
Probing disorder-induced time-reversal symmetry breaking in Josephson junctions
Yu Wu, Daiqiang Huang, Huanyu Zhang +13
The relation between superconductivity and time-reversal symmetry (TRS) is one of the most fascinating problems in condensed matter physics. Although most superconductors inherentl…