Charge Density Wave and Ferromagnetism in Intercalated CrSBr
Abstract
Abstract In materials with 1D electronic bands, electron–electron interactions can produce intriguing quantum phenomena, including spin‐charge separation and charge density waves (CDW). Most of these systems, however, are non‐magnetic, motivating a search for anisotropic materials where the coupling of charge and spin may affect emergent quantum states. Here, chemical intercalation of the van der Waals magnetic semiconductor CrSBr yields Li 0.17(2) (tetrahydrofuran) 0.26(3) CrSBr, which possesses an electronically driven quasi‐1D CDW with an onset temperature above room temperature. Concurrently, electron doping increases the magnetic ordering temperature from 132 to 200 K and switches its interlayer magnetic coupling from antiferromagnetic to ferromagnetic. The spin‐polarized nature of the anisotropic bands that give rise to this CDW enforces an intrinsic coupling of charge and spin. The coexistence and interplay of ferromagnetism and charge modulation in this exfoliatable material provide a promising platform for studying tunable quantum phenomena across a range of temperatures and thicknesses.
Article Details
Authors (28)
Margalit L. Feuer
Department of Chemistry Columbia University New York NY 10027 USA
Morgan Thinel
Xiong Huang
Department of Physics
Zhi‐Hao Cui
Department of Chemistry Columbia University New York NY 10027 USA
Yinming Shao
Department of Physics
Asish K. Kundu
National Synchrotron Light Source II
Daniel G. Chica
Department of Chemistry
Myung‐Geun Han
Condensed Matter Physics and Materials Science Department Brookhaven National Laboratory Upton NY 11973 USA
Rohan Pokratath
Department of Chemistry University of Basel Basel 4058 Switzerland
Evan J. Telford
Department of Chemistry
Jordan Cox
Department of Chemistry
Emma York
Department of Chemistry Columbia University New York NY 10027 USA
Saya Okuno
Department of Chemistry Columbia University New York NY 10027 USA
Chun‐Ying Huang
Department of Chemistry Columbia University New York NY 10027 USA
Owethu Bukula
Department of Chemistry Columbia University New York NY 10027 USA
Luca M. Nashabeh
Department of Physics Columbia University New York NY 10027 USA
Siyuan Qiu
Department of Physics
Colin P. Nuckolls
Columbia University , , , ,
Cory R. Dean
Simon J. L. Billinge
Condensed Matter Physics and Materials Science Department Brookhaven National Laboratory Upton NY 11973 USA
Xiaoyang Zhu
Department of Chemistry
Yimei Zhu
Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, NY, USA.
Dmitri N. Basov
Andrew J. Millis
David R. Reichman
Department of Chemistry
Abhay N. Pasupathy
Xavier Roy
Michael E. Ziebel
Department of Chemistry