Out-of-Plane Spin-Orientation Dependent Magnetotransport Properties in the Anisotropic Helimagnet Cr${}_{1/3}$NbS${}_2$

Abstract

Understanding the role of spin-orbit coupling (SOC) has been crucial to controlling magnetic anisotropy in magnetic multilayer films. It has been shown that electronic structure can be altered via interface SOC by varying the superlattice structure, resulting in spontaneous magnetization perpendicular or parallel to the plane. In lieu of magnetic thin films, we study the similarly anisotropic helimagnet Cr${}_{1/3}$NbS${}_2$, where the spin polarization direction, controlled by the applied magnetic field, can modify the electronic structure. As a result, the direction of spin polarization can modulate the density of states, and in turn affect the in-plane electrical conductivity. In Cr${}_{1/3}$NbS${}_2$, we found an enhancement of in-plane conductivity when the spin polarization is out-of-plane, as compared to in-plane spin polarization. This is consistent with the increase of density of states near the Fermi energy at the same spin configuration, found from first principles calculations. We also observe unusual field dependence of the Hall signal in the same temperature range. This is unlikely to originate from the non-collinear spin texture, but rather further indicates strong dependence of electronic structure on spin orientation relative to the plane.

7 pages, 6 figures

References in corpus (6)

• A hidden constant in the anomalous Hall effect of a high-purity magnet MnSi
• Magnetic phase transitions in single crystals of the chiral helimagnet Cr1/3NbS2
• Spin Structure of the Anisotropic Helimagnet Cr${}_{1/3}$NbS${}_2$ in a Magnetic Field
• Orientation Dependence of the Anomalous Hall Resistivity in Single Crystals of Yb14MnSb11
• Origin and consequence of an unpinned helical magnet: application to partial order in MnSi under pressure
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Cited by in corpus (13)

• Controlling the topological sector of magnetic solitons in exfoliated Cr${}_{1/3}$NbS${}_2$ crystals
• Observation of a mesoscopic magnetic modulation in chiral Mn1/3NbS2
• Understanding the H-T phase diagram of the mono-axial helimagnet
• Incommensurate--commensurate transitions in the mono-axial chiral helimagnet driven by the magnetic field
• The nature of ferromagnetism in the chiral helimagnet $C{r}_{1/3}Nb{S}_2$
• Giant topological and planar Hall effect in Cr${}_{1/3}$NbS${}_2$
• Nucleation, instability, and discontinuous phase transitions in monoaxial helimagnets with oblique fields
• Comparative Electronic Structures of the Chiral Helimagnets Cr1/3NbS2 and Cr1/3TaS2
• Persistent exchange splitting in a chiral helimagnet Cr1/3NbS2
• Thermal fluctuations in the conical state of monoaxial helimagnets
• Energy-gap driven low-temperature magnetic and transport properties in Cr${}_{1/3}M$S${}_2$ ($M$ = Nb or Ta)
• Disentangling Electronic, Lattice and Spin Dynamics in the Chiral Helimagnet Cr1/3NbS2
• Spin phase detection by spin current in a chiral helimagnet