Related Experiment Video
Updated: Jan 26, 2026

Fluorescence Recovery after Merging a Droplet to Measure the Two-dimensional Diffusion of a Phospholipid Monolayer
Published on: October 15, 2015
Direct Photoluminescence Probing of Ferromagnetism in Monolayer Two-Dimensional CrBr3
Zhaowei Zhang1, Jingzhi Shang1,2, Chongyun Jiang1
1Division of Physics and Applied Physics, School of Physical and Mathematical Sciences , Nanyang Technological University , Singapore 637371 , Singapore.
Abstract:
Atomically thin magnets are the key element to build up spintronics based on two-dimensional materials. The surface nature of two-dimensional ferromagnet opens up opportunities to improve the device performance efficiently. Here, we report the intrinsic ferromagnetism in atomically thin monolayer CrBr3, directly probed by polarization resolved magneto-photoluminescence. The spontaneous magnetization persists in monolayer CrBr3 with a Curie temperature of 34 K. The development of magnons by the thermal excitation is in line with the spin-wave theory. We attribute the layer-number-dependent hysteresis loops in thick layers to the magnetic domain structures. As a stable monolayer material in air, CrBr3 provides a convenient platform for fundamental physics and pushes the potential applications of the two-dimensional ferromagnetism.
Related Concept Videos
Ferromagnetism
Photoluminescence: Applications
Photoluminescence: Fluorescence and Phosphorescence
A pair of electrons in a...
Dimensional Analysis
Conversion Factors and Dimensional Analysis
The unit...
Directing Effect of Substituents: meta-Directing Groups
Directing Effect of Substituents: ortho–para-Directing Groups

