ARPES observation of Mn-pnictide hybridization and negligible band structure renormalization in BaMn${}_2$As${}_2$ and BaMn${}_2$Sb${}_2$

Abstract

We performed an angle-resolved photoemission spectroscopy study of BaMn${}_2$As${}_2$ and BaMn${}_2$Sb${}_2$, which are isostructural to the parent compound BaFe${}_2$As${}_2$ of the 122 family of ferropnictide superconductors. We show the existence of a strongly $k_z$-dependent band gap with a minimum at the Brillouin zone center, in agreement with their semiconducting properties. Despite the half-filling of the electronic 3$d$ shell, we show that the band structure in these materials is almost not renormalized from the Kohn-Sham bands of density functional theory. Our photon energy dependent study provides evidence for Mn-pnictide hybridization, which may play a role in tuning the electronic correlations in these compounds.

arXiv comment7 pages, 4 figures. See published version for the latest update

References in corpus (29)

• Strong electronic correlations from Hund's coupling
• Magnetic order in BaFe2As2, the parent compound of the FeAs based superconductors in a new structural family
• Coherence-incoherence crossover in the normal state of iron-oxypnictides and importance of the Hund's rule coupling
• A precise method for visualizing dispersive features in image plots
• Theoretical evidence for strong correlations and incoherent metallic state in FeSe
• Observation of Dirac Cone Electronic Dispersion in BaFe2As2
• Spin fluctuations and superconductivity in a 3D tight-binding model for BaFe2As2
• Nature of the Magnetic Order in BaMn2As2
• Low energy spin waves and magnetic interactions in SrFe${}_2$As${}_2$
• Fe-based superconductors: an angle-resolved photoemission spectroscopy perspective
• Electronic structure and Magnetism in BaMn${}_2$As${}_2$ and BaMn${}_2$Sb${}_2$
• Fermi-liquid, non-Fermi-liquid, and Mott phases in iron pnictides and cuprates
• Electronic structure of optimally doped pnictide Ba${}_{0.6}$K${}_{0.4}$Fe${}_2$As${}_2$: a comprehensive ARPES investigation
• The cleavage surface of the BaFe_(2-x)Co_(x)As_(2) and Fe_(y)Se_(1-x)Te_(x) superconductors: from diversity to simplicity
• Ba{1-x}KxMn2As2: An Antiferromagnetic Local-Moment Metal
• Surface Geometric and Electronic Structure of BaFe2As2(001)
• Orbital Characters Determined from Fermi Surface Intensity Patterns using Angle-Resolved Photoemission Spectroscopy
• Correlation induced spin freezing transition in FeSe: a dynamical mean field study
• Stability of exfoliated Bi${}_2$Sr${}_2$Dy${}_x$Ca${}_{1-x}$Cu${}_2$O${}_{8+\delta }$ studied by Raman microscopy
• Electronic band structure of BaCo${}_2$As${}_2$: a fully-doped ferropnictide with reduced electronic correlations
• Spectral properties of transition metal pnictides and chalcogenides: angle-resolved photoemission spectroscopy and dynamical mean field theory
• Coexistence of Half-Metallic Itinerant Ferromagnetism with Local-Moment Antiferromagnetism in Ba{0.60}K{0.40}Mn2As2
• Itinerant ferromagnetism in the As 4$p$ conduction band of Ba${}_{0.6}$K${}_{0.4}$Mn${}_2$As${}_2$ identified by x-ray magnetic circular dichroism
• From Hunds insulator to Fermi liquid: Optical spectroscopy study of K doping in BaMn${}_2$As${}_2$
• Novel weak-ferromagnetic metallic state in heavily doped Ba${}_{1-x}$K${}_x$Mn${}_2$As${}_2$
• A comparative study of the electronic and magnetic properties of BaFe_2As_2 and BaMn_2As_2 using the Gutzwiller approximation
• First-principles evidence of Mn moment canting in hole-doped Ba${}_{1-2x}$K${}_{2x}$Mn${}_2$As${}_2$
• Importance of effective dimensionality in manganese pnictides
• Angle-resolved photoemission spectroscopy observation of anomalous electronic states in EuFe${}_2$As${}_{2-x}$P${}_x$

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• Non-Fermi-liquid behaviors associated with a magnetic quantum-critical point in Sr(Co{1-x}Ni{x})2As2 single crystals
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• Observation of a remarkable reduction of correlation effects in BaCr2As2 by ARPES
• Itinerant G-type antiferromagnetic order in SrCr${}_2$As${}_2$
• Robust antiferromagnetic spin waves across the metal-insulator transition in hole-doped BaMn${}_2$As${}_2$
• Large negative magnetoresistance in BaMn${}_2$Bi${}_2$ antiferromagnet
• Colossal band renormalization and stoner ferromagnetism induced by electron-antiferromagnetic-magnon coupling
• Itinerant antiferromagnetic BaMn${}_2$Pn${}_2$'s showing both negative and positive magnetoresistances
• Putative hybridization gap in CaMn${}_2$Bi${}_2$ under applied pressure
• Novel polymorphic phase of BaCu2As2: impact of flux for new phase formation in crystal growth
• Linear magnetoelectricity in the Zintl phase pnictides (Ba, Ca, Sr)${\mathrm{Mn}}_2{(\mathrm{P},\mathrm{As},\mathrm{Sb})}_2$ from first principles calculations
• Magnetic-field-induced Anderson localization in orbital selective antiferromagnet BaMn${}_2$Bi${}_2$
• Local-moment magnetism in Mn-based pnictides