Pressure tuning of intrinsic and extrinsic sources to the anomalous Hall effect in CrGeTe${}_3$

Abstract

The integrated Berry curvature is a geometric property that has dramatic implications for material properties. This study investigates the integrated Berry curvature and other contributions to the anomalous Hall effect in CrGeTe${}_3$ as a function of pressure. The anomalous Hall effect is absent in the insulating phase of CrGeTe${}_3$ and evolves with pressure in a dome-like fashion as pressure is applied. The dome's edges are characterized by Fermi surface deformations, manifested as mixed electron and hole transport. We corroborate the presence of bipolar transport by ab-initio calculations which also predict a nonmonotonic behavior of the Berry curvature as a function of pressure. Quantitative discrepancies between our calculations and experimental results indicate that additional scattering mechanisms, which are also strongly tuned by pressure, contribute to the anomalous Hall effect in CrGeTe${}_3$.

References in corpus (12)

• Linear magnetization dependence of the intrinsic anomalous Hall effect
• Multivariable Scaling for the Anomalous Hall Effect
• Tricritical behavior of two-dimensional intrinsic ferromagnetic semiconducting CrGeTe3
• Pressure-Induced Structural Phase Transition and a Special Amorphization Phase of Two-Dimensional Ferromagnetic Semiconductor Cr2Ge2Te6
• Nearly room temperature ferromagnetism in pressure-induced correlated metallic state of van der Waals insulator CrGeTe${}_3$
• Topological features in the ferromagnetic Weyl semimetal CeAlSi: Role of domain walls
• Tuning the nontrivial topological properties of the Weyl semimetal CeAlSi
• Anisotropic magnon damping by zero-temperature quantum fluctuations in ferromagnetic CrGeTe${}_3$
• Pressure control of the magnetic anisotropy of the quasi-two-dimensional van der Waals ferromagnet Cr${}_2$Ge${}_2$Te${}_6$
• Dimensional crossover in a layered ferromagnet detected by spin correlation driven distortions
• Magnetic-field modulation of topological electronic states and emergent magneto-transport in a magnetic Weyl semimetal
• Pressure evolution of electronic structure and magnetism in the layered van der Waals ferromagnet CrGeTe${}_3$

Cited by in corpus (2)

• Near room-temperature ferromagnetism from double-exchange in the van der Waals material CrGeTe${}_3$: evidence from optical conductivity under pressure
• Origin of pressure-induced anomalies in the nodal-line ferrimagnet Mn${}_3$Si${}_2$Te${}_6$