Angle-resolved photoemission spectroscopy with an $\text{in situ}$ tunable magnetic field

Abstract

Angle-resolved photoemission spectroscopy (ARPES) is a powerful tool for probing the momentum-resolved single-particle spectral function of materials. Historically, $\text{in situ}$ magnetic fields have been carefully avoided as they are detrimental to the control of photoelectron trajectory during the photoelectron detection process. However, magnetic field is an important experimental knob for both probing and tuning symmetry-breaking phases and electronic topology in quantum materials. In this paper, we introduce an easily implementable method for realizing an $\text{in situ}$ tunable magnetic field at the sample position in an ARPES experiment and analyze magnetic field induced artifacts in ARPES data. Specifically, we identified and quantified three distinct extrinsic effects of a magnetic field: Fermi surface rotation, momentum shrinking, and momentum broadening. We examined these effects in three prototypical quantum materials, i.e., a topological insulator (Bi${}_2$Se${}_3$), an iron-based superconductor (LiFeAs), and a cuprate superconductor (Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+x}$), and demonstrate the feasibility of ARPES measurements in the presence of a controllable magnetic field. Our studies lay the foundation for the future development of the technique and interpretation of ARPES measurements of field-tunable quantum phases.

26 pages, 7 figures

References in corpus (19)

• Angle-resolved photoemission spectroscopy of the cuprate superconductors
• Electronic structure of quantum materials studied by angle-resolved photoemission spectroscopy
• Angle-resolved photoemission spectroscopy and its application to topological materials
• Development of a Vacuum Ultra-Violet Laser-Based Angle-Resolved Photoemission System with a Super-High Energy Resolution Better Than 1 meV
• Role of the orbital degree of freedom in iron-based superconductors
• Unconventional Anisotropic s-Wave Superconducting Gaps of LiFeAs Iron-Pnictide Superconductor
• New Developments in Laser-Based Photoemission Spectroscopy and its Scientific Applications: a Key Issues Review
• Momentum anisotropy of the scattering rate in cuprate superconductors
• Magnetic semimetals and quantized anomalous Hall effect in EuB6
• In-situ strain-tuning of the metal-insulator-transition of Ca${}_2$RuO${}_4$ in angle-resolved photoemission experiments
• Experimental setup for low-energy laser-based angle resolved photoemission spectroscopy
• Time-resolved photoemission apparatus achieving sub-20-meV energy resolution and high stability
• Momentum Dependence of the Nematic Order Parameter in Iron-Based Superconductors
• High Resolution Angle Resolved Photoemission with Tabletop 11eV Laser
• Visualizing the Effect of an Electrostatic Gate with Angle-Resolved Photoemission Spectroscopy
• Spin- and angle-resolved photoemission on topological materials
• Destroying coherence in high temperature superconductors with current flow
• Momentum-resolved measurement of electronic nematic susceptibility in the FeSe${}_{0.9}$S${}_{0.1}$ superconductor
• magnetoARPES: Angle Resolved Photoemission Spectroscopy with Magnetic Field Control

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• Sub-tesla on-chip nanomagnetic metamaterial platform for angle-resolved photoemission spectroscopy
• Dichotomy of flat bands in the van der Waals ferromagnet Fe${}_5$GeTe${}_2$