Exploration of two surfaces observed in Weyl semimetal BaMnSb2

Article Physics, Multidisciplinary

Unusual electronic structure of Dirac material BaMnSb2 revealed by angle-resolved photoemission spectroscopy*

Hongtao Rong et al.

Summary: High resolution angle resolved photoemission measurements and band structure calculations were conducted to study the electronic structure of BaMnSb2. The observed linear bands and unusual electronic structure of BaMnSb2 deviates significantly from the band structure calculations, sparking further efforts to theoretically understand its electronic structure and search for novel properties in this Dirac material.

CHINESE PHYSICS B (2021)

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Article Materials Science, Multidisciplinary

Competitive and cooperative electronic states in Ba(Fe1-xTx)2As2 with T = Co, Ni, Cr

Qiang Zou et al.

Summary: Electronic inhomogeneities in Co, Ni, and Cr doped BaFe2As2 single crystals were compared in different bulk property regions. Machine learning was used to categorize the inhomogeneous electronic states, revealing different origins and roles. While the relative percentages of electronic states varied in different samples, the total volume fractions were similar.

NPJ QUANTUM MATERIALS (2021)

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Article Multidisciplinary Sciences

Spin-valley locking and bulk quantum Hall effect in a noncentrosymmetric Dirac semimetal BaMnSb2

J. Y. Liu et al.

Summary: This study reveals the phenomenon of spin-valley locking and stacked quantum Hall effect in BaMnSb2, providing a rare platform for exploring coupled spin and valley physics.

NATURE COMMUNICATIONS (2021)

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Article Materials Science, Multidisciplinary