@article {1645881,
	title = {The bulk van der Waals layered magnet CrSBr is a quasi-1D quantum material},
	journal = {ACS Nano},
	volume = {17},
	number = {6},
	year = {2023},
	month = {May 2022},
	pages = {5316-5328},
	abstract = {Correlated quantum phenomena in one-dimensional (1D) systems that exhibit competing electronic and magnetic orders are of fundamental interest. Interaction effects in low-dimensional systems can lead to fundamental excitations which are completely different from the quasi-particles one would expect in a higher-dimensional counterpart, such as Tomonaga-Luttinger liquids and topological orders and defects. However, clean 1D electronic systems are difficult to realize experimentally, particularly magnetically ordered systems. Here, we show that the van der Waals layered magnetic semiconductor CrSBr behaves like a quasi-1D electronic material embedded in a magnetically ordered environment. The strong 1D electronic character is due to the unique combination of weak interlayer hybridization and anisotropy in effective mass and dielectric screening. The band structure and quasi-particle excitations are dominated by the Cr-S chains and a shallow 1D quantum confinement normal to these chains, manifesting in an anisotropic band with an effective electron mass ratio of\&nbsp;meX/meY\~{}50. Strong quasi-particle interactions and 1D electronic character are indicated by Fano resonances from a van Hove singularity of similar strength as in metallic carbon nanotubes. The spectrally narrow excitons (1 meV) inherit the 1D character and show pronounced exciton-phonon coupling effects. Overall, CrSBr appears to be an experimentally clean candidate for the study of 1D correlated many-body physics in the presence of magnetic order.},
	url = {https://pubs.acs.org/doi/abs/10.1021/acsnano.2c07316},
	author = {Julian Klein and Benjamin Pingault and Matthias Florian and Marie-Christin Hei{\ss}enb{\"u}ttel and Alexander Steinhoff and Zhigang Song and Kierstin Torres and Florian Dirnberger and Jonathan B. Curtis and Thorsten Deilmann and Rami Dana and Rezlind Bushati and Jiamin Quan and Jan Luxa and Zdenek Sofer and Andrea Al{\`u} and Vinod M. Menon and Ursula Wurstbauer and Michael Rohlfing and Narang, Prineha and Lon{\v c}ar, Marko and Frances M. Ross}
}
