Hysteretic Magnetotransport in SmB6 at Low Magnetic Fields

Abstract

Utilizing Corbino disc structures, we have examined the magnetic field response of resistivity for the surface states of SmB6 on different crystalline surfaces at low temperatures. Our results reveal a hysteretic behavior whose magnitude depends on the magnetic field sweep rate and temperature. Although this feature becomes smaller when the field sweep is slower, a complete elimination or saturation is not observed in our slowest sweep-rate measurements, which is much slower than a typical magnetotransport trace. These observations cannot be explained by quantum interference corrections such as weak anti-localization. Instead, they are consistent with behaviors of glassy surface magnetic ordering, whose magnetic origin is most likely from samarium oxide (Sm2O3) forming on the surface during exposure to ambient conditions.

References in corpus (28)

• Superconducting proximity effect and Majorana fermions at the surface of a topological insulator
• Topological Insulator Materials
• Surface quantized anomalous Hall current and magneto-electric effect in magnetically disordered topological insulators
• Surface electronic structure of the topological Kondo insulator candidate correlated electron system SmB6
• Low-temperature surface conduction in the Kondo insulator SmB${}_6$
• Manifestation of Topological Protection in Transport Properties of Epitaxial Bi2Se3 Thin Films
• Correlated Topological Insulators with Mixed Valence
• Competition between weak localization and antilocalization in topological surface states
• Topological surface state in the Kondo Insulator Samarium Hexaboride
• Quantum oscillations in Kondo Insulator SmB${}_6$
• Robust Surface Hall Effect and Nonlocal Transport in SmB6: Indication for an Ideal Topological Insulator
• Observation of in-gap surface states in the Kondo insulator SmB6 by photoemission
• A theory of Topological Kondo Insulators
• Direct observation of the spin texture in strongly correlated SmB6 as evidence of the topological Kondo insulator
• Surface and Bulk Electronic Structure of the Strongly Correlated System SmB${}_6$ and Implications for a Topological Kondo Insulator
• Ordering of magnetic impurities and tunable electronic properties of topological insulators
• Cubic Topological Kondo Insulators
• Hybridization, Inter-Ion Correlation, and Surface States in the Kondo Insulator SmB6
• Polarity-driven surface metallicity in SmB${}_6$
• Tuning bulk and surface conduction in topological Kondo insulator SmB6
• Hybridization gap and Fano resonance in SmB${}_6$
• Emergence of a coherent in-gap state in SmB6 Kondo insulator revealed by scanning tunneling spectroscopy
• Momentum-Dependent Hybridization Gap and dispersive in-gap state of The Kondo Semiconductor SmB6
• Correlation between bulk thermodynamic measurements and the low temperature resistance plateau in SmB6
• Spintronics and spincaloritronics in topological insulators
• A phase diagram for a topological Kondo insulating system
• Electron coherence at low temperatures: The role of magnetic impurities
• Deep Spin-Glass Hysteresis Area Collapse and Scaling in the $d=3$ $\pm J$ Ising Model

Cited by in corpus (29)

• Quantum Oscillations of Electrical Resistivity in an Insulator
• Quantum oscillations in flux-grown SmB6 with embedded aluminum
• Robustness of the Insulating Bulk in the Topological Kondo Insulator SmB${}_6$
• 4$f$ crystal field ground state of the strongly correlated topological insulator SmB${}_6$
• Pressure-resistant intermediate valence in Kondo insulator SmB6
• Bulk and surface electronic properties of SmB6: a hard x-ray photoelectron spectroscopy study
• A highly asymmetric nodal semimetal in bulk SmB6
• Suppression of magnetic excitations near the surface of the topological Kondo insulator SmB6
• Definitive Surface Magnetotransport Study of SmB${}_6$
• Surface-induced positive planar Hall effect in topological Kondo insulator SmB6 microribbons
• Magnetic impurities in Kondo insulators: An application to samarium hexaboride
• Bulk Rotational Symmetry Breaking in Kondo Insulator SmB6
• Diamagnetic Sm${}^{3+}$ in the topological Kondo insulator SmB${}_6$
• Magnetic skyrmion crystal at a topological insulator surface
• Anomalous Hall Effect on the surface of topological Kondo insulators
• A RIXS investigation of the crystal-field splitting of Sm${}^{3+}$ in SmB${}_6$
• Reduction of the low-temperature bulk gap in samarium hexaboride under high magnetic fields
• Long-lived non-equilibrium superconductivity in a non-centrosymmetric Rashba semiconductor
• Probing the interplay between surface and bulk states in the topological Kondo insulator SmB${}_6$ through conductance fluctuation spectroscopy
• Influence of Helical Spin Structure on the Magnetoresistance of an Ideal Topological Insulator
• An STM perspective on hexaborides: Surface states of the Kondo insulator SmB${}_6$
• Comparative Scanning Tunneling Microscopy Study on Hexaborides
• Unconventional Josephson junctions with topological Kondo insulator weak links
• Phase stability in SmB${}_6$
• Strong spin-orbit coupling and magnetism in (111) (La${}_{0.3}$Sr${}_{0.7}$)(Al${}_{0.65}$Ta${}_{0.35})$/SrTiO${}_3$
• Effects of disorder on the quantum transport properties in topologically nontrivial metal PbTaSe${}_2$
• Correlation Induced Magnetic Topological Phases in Mixed-Valence Compound SmB6
• Persistence of correlation-driven surface states in SmB6 under pressure
• f-electron charge densities probed using core level non-resonant inelastic x-ray scattering