Electronic structure of BaNi${}_2$As${}_2$

Abstract

BaNi${}_2$As${}_2$, with a first order phase transition around 131 K, is studied by the angle-resolved photoemission spectroscopy. The measured electronic structure is compared to the local density approximation calculations, revealing similar large electronlike bands around $\bar{M}$ and differences along $\bar{\Gamma }$-$\bar{X}$. We further show that the electronic structure of BaNi${}_2$As${}_2$ is distinct from that of the sibling iron pnictides. Particularly, there is no signature of band folding, indicating no collinear SDW related magnetic ordering. Moreover, across the strong first order phase transition, the band shift exhibits a hysteresis, which is directly related to the significant lattice distortion in BaNi${}_2$As${}_2$.

8 pages, 7 figures

References in corpus (24)

• Superconductivity at 43 K in Samarium-arsenide Oxides $SmFeAs{O}_{1-x}{F}_x$
• Spin density wave anomaly at 140 K in the ternary iron arsenide BaFe2As2
• Theory of Electron Nematic Order in LaOFeAs
• Superconductivity in iron-based F-doped layered quaternary compound Nd[O1-xFx]FeAs
• Resonant Spin Excitation in the High Temperature Superconductor Ba0.6K0.4Fe2As2
• Origin of the ~150 K Anomaly in LaOFeAs; Competing Antiferromagnetic Superexchange Interactions, Frustration, and Structural Phase Transition
• Ising and Spin orders in Iron-based Superconductors
• Superconductivity at 52 K in iron-based F-doped layered quaternary compound Pr[O1-xFx]FeAs
• Coexistence of static magnetism and superconductivity in SmFeAsO1-xFx as revealed by muon spin rotation
• Spin fluctuations and superconductivity in a 3D tight-binding model for BaFe2As2
• Unconventional electronic reconstruction in undoped (Ba,Sr)Fe${}_2$As${}_2$ across the spin density wave transition
• First Order Phase Transition and Superconductivity in BaNi2As2 Single Crystals
• Superconductivity in SrNi2As2 Single Crystals
• Electronic structure of Fe1.04(Te0.66Se0.34)
• Structure and Anisotropic Properties of BaFe2-xNixAs2 (x = 0, 1, 2) Single Crystals
• Strong-coupling superconductivity in layered nickel-based LaO${}_{1-x}$F${}_x$NiAs
• Electronic structure reconstruction: the driving force behind the magnetic and structural transitions in NaFeAs
• Correlation effects of exchange splitting and coexistence of spin-density-wave and superconductivity in single crystalline Sr1-xKxFe2As2
• Strong correlation and massive spectral-weight redistribution induced spin density wave in a-Fe1.06Te
• Surface and bulk electronic structures of LaOFeAs studied by angle resolved photoemission spectroscopy
• NMR evidence of strong-correlated superconductivity in LiFeAs: tuning toward an SDW ordering
• Low-temperature synthesis of SmO0.8F0.2FeAs superconductor with Tc = 56.1K
• High-resolution angle-resolved photoemission spectroscopy study of the electronic structure of EuFe2As2
• Formation of partial energy gap below the structural phase transition and the rare-earth element substitution effect on infrared phonons in ReFeAsO (Re=La, Nd, and Sm)

Cited by in corpus (23)

• Role of the orbital degree of freedom in iron-based superconductors
• Unconventional Charge Density Wave Order in the Pnictide Superconductor Ba(Ni${}_{1-x}$Co${}_x$)${}_2$As${}_2$
• Soft-phonon and charge-density-wave formation in nematic BaNi${}_2$As${}_2$
• Strong electronic correlations in iron pnictides: Comparison of the optical spectra for BaFe2As2-related compounds
• Phonon softening and slowing down of charge-density-wave fluctuations in BaNi${}_2$As${}_2$
• Electronic structure of iron-based superconductors: from pnictides to chalcogenides and other similar systems
• Multi-gap nodeless superconductivity in nickel chalcogenide TlNi2Se2
• Magnetism and superconductivity in the layered hexagonal transition metal pnictides
• Anomalous High-Energy Electronic Interaction in Iron-Based Superconductor
• Electronic structure of BaNi${}_2$P${}_2$ observed by angle-resolved photoemission spectroscopy
• Tests of nematic-mediated superconductivity applied to Ba${}_{1-x}$Sr${}_x$Ni${}_2$As${}_2$
• Potential Lifshitz transition at optimal substitution in nematic pnictide Ba${}_{1-x}$Sr${}_x$Ni${}_2$As${}_2$
• Anomalous Pressure Dependence of the Superconducting Transition Temperature in TlNi${}_2$Se${}_{2-x}$S${}_x$
• Comparative Study of Electronic structure of New Superconductors (Sr,Ca)Pd2As2 and related compound BaPd2As2
• Real-space Observation of Unidirectional Charge Density Wave and Complex Structural Modulation in the Pnictide Superconductor Ba${}_{1-x}$Sr${}_x$Ni${}_2$As${}_2$
• Complex structure due to As bonding and interplay with electronic structure in superconducting BaNi2As2
• Zigzag chain structure transition and orbital fluctuations in Ni-based superconductors
• Spectral Evidence for Unidirectional Charge Density Wave in Detwinned BaNi${}_2$As${}_2$
• The weak electronic correlations and absence of heavy Fermion state in KNi${}_2$Se${}_2$
• Optical properties of TlNi2Se2: Observation of pseudogap formation
• Weakness of Correlation Effect Manifestation in BaNi${}_2$As${}_2$: ARPES and LDA+DMFT study
• Experimental and theoretical electronic structure of EuRh2As2
• Electronic structure of $A$Co${}_2$As${}_2$ ($A=$ Ca, Sr, Ba, Eu) studied using angle-resolved photoemission spectroscopy and theoretical calculations