jinzhitong

Nature Communications, Published online: 05 July 2022; doi:10.1038/s41467-022-31606-8

Bi2O2Se holds potential for the realization of 2D optical modulators due to its broadband nonlinear response, air stability and carrier mobility. Here, the authors report the realization of defect-engineered Bi2O2Se nanoplates as saturable absorbers for femtosecond solid-state lasers, showing improved output power and pulse duration.

Nature Materials, Published online: 04 August 2022; doi:10.1038/s41563-022-01320-3

The authors investigate tunnelling magnetoresistance in Fe3GeTe2/hBN(WSe2)/Fe3GeTe2 magnetic tunnel junctions and report strong variations with bias including polarization reversals.

Nature Electronics, Published online: 26 July 2022; doi:10.1038/s41928-022-00818-7

Wafer-scale transfer of tungsten disulfide

Nature Electronics, Published online: 01 August 2022; doi:10.1038/s41928-022-00801-2

Two laser beams with different energies and configurations can be used to reversibly dope graphene via chlorination and chlorine removal, allowing rewritable graphene photodetectors to be fabricated.

Nature Electronics, Published online: 02 August 2022; doi:10.1038/s41928-022-00802-1

Laser-assisted chemical reactions have been used to write reversible ultra-high-density doping patterns in graphene for optoelectronic applications. The approach used two laser beams with specific photon energies and geometric configurations to enable local doping with a high dopant coverage ratio on graphene, while preserving the electronic properties of the surface.

Nature Nanotechnology, Published online: 01 August 2022; doi:10.1038/s41565-022-01180-7

Twisted WSe2 AB-homobilayers enable the realization of bilayer Hubbard models in the weak interlayer hopping limit.

Nature Materials, Published online: 25 July 2022; doi:10.1038/s41563-022-01311-4

Heterostructures combine the unique properties of each constituent, improving the efficiency and stability of perovskite-based optoelectronic devices, yet the films suffer from poor compositional and structural uniformity. Here, the authors demonstrate a ligand-assisted welding process to fabricate a series of epitaxial 2D and 3D perovskite heterostructures.

Nature Materials, Published online: 27 July 2022; doi:10.1038/s41563-022-01290-6

Understanding, at the atomic level, the effect of the stacking and twisting of different layered two-dimensional materials is a major challenge for the future of twistronics. Optical excitations evidence twist-angle-dependent whirlpool-shaped distortions in such materials.

Nature, Published online: 27 July 2022; doi:10.1038/s41586-022-04855-2

An alternating stack of a candidate spin liquid and a superconductor shows a spontaneous vortex phase in the superconducting state without magnetism in the normal state. This indicates the presence of unconventional magnetic ordering independent of the superconductor.

Nature, Published online: 01 August 2022; doi:10.1038/s41586-022-05134-w

P-type electrical contacts for two-dimensional transition metal dichalcogenides

Nature, Published online: 20 July 2022; doi:10.1038/d41586-022-01941-3

Applying strain to a material that has a type of magnetism called antiferromagnetism allows its magnetization to be fully switched with an electric current — making it appealing for use in next-generation magnetic memory devices.