Tunable Giant Exchange Bias in an Intercalated Transition Metal Dichalcogenide

Abstract

The interplay of symmetry and quenched disorder leads to some of the most fundamentally interesting and technologically important properties of correlated materials. It also poses the most vexing of theoretical challenges. Nowhere is this more apparent than in the study of spin glasses. A spin glass is characterized by an ergodic landscape of states - an innumerable number of possibilities that are only weakly distinguished energetically, if at all. We show in the material Fe${}_x$NbS${}_2$, this landscape of states can be biased by coexisitng antiferromagnetic order. This process leads to a phenomenon of broad technological importance: giant, tunable exchange bias. We observe exchange biases that exceed those of conventional materials by more than two orders of magnitude. This work illustrates a novel route to giant exchange bias by leveraging the interplay of frustration and disorder in exotic materials.

18 pages, 4 figures

References in corpus (4)

• Robust isothermal electric switching of interface magnetization: A route to voltage-controlled spintronics
• Exchange bias effect in alloys and compounds
• Observation of three-state nematicity in the triangular lattice antiferromagnet Fe${}_{1/3}$ NbS${}_2$
• Half-magnetization plateau and the origin of threefold symmetry breaking in an electrically-switchable triangular antiferromagnet

Cited by in corpus (18)

• Designer Magnetism in High Entropy Oxides
• Exchange-biased topological transverse thermoelectric effects in a Kagome ferrimagnet
• Interpretable and unsupervised phase classification
• Composition dependence of bulk properties in the Co-intercalated transition-metal dichalcogenide Co${}_{1/3}$TaS${}_2$
• Multi-mode excitation drives disorder during the ultrafast melting of a C4-symmetry-broken phase
• Consequences and control of multi-scale (dis)order in chiral magnetic textures
• Configurable antiferromagnetic domains and lateral exchange bias in atomically thin CrPS4
• Hole doping in compositionally complex correlated oxide enables tunable exchange biasing
• Essential aspects of the spontaneous exchange bias effect
• Precursor phase with full phonon softening above the charge-density-wave phase transition in $2H$-TaSe${}_2$
• Coupling between Antiferromagnetic and Spin Glass Orders in the Quasi-One-Dimensional Iron Telluride TaFe${}_{1+x}$Te${}_3$ ($x$=0.25)
• Microscopic mechanisms of Strong Electron Scattering and Giant Anomalous Hall Effect in high-Curie-temperature Fe3GaTe2 van der Waals Films
• Tunability of the magnetic properties in Ni intercalated transition metal dichalcogenide NbSe${}_2$
• Coexistence of Commensurate and Incommensurate Antiferromagnetic Groundstates in Co${}_x$NbSe${}_2$ Single Crystal
• Intra-unitcell cluster-cluster magnetic compensation and large exchange bias in cubic alloys
• Three-axis torque investigation of interfacial exchange coupling in a NiFe/CoO bilayer micromagnetic disk
• Double-$Q$ chiral stripe order in the anomalous Hall antiferromagnet CoNb${}_3$S${}_6$
• Measuring the Hall effect in hysteretic materials