Manifestations of multiple-carrier charge transport in the magnetostructurally ordered phase of undoped BaFe${}_2$As${}_2$

Abstract

We investigated the transport properties of BaFe${}_2$As${}_2$ single crystals before and after annealing with BaAs powder. The annealing remarkably improves transport properties, in particular the magnitude of residual resistivity which decreases by a factor of more than 10. From the resistivity measurement on detwinned crystals we found that the anisotropy of the in-plane resistivity is remarkably diminished after annealing, indicative of dominant contributions to the charge transport from the carriers with isotropic and high mobility below magnetostructural transition temperature $T_{\mathrm{s}}$ and the absence of nematic state above $T_{\mathrm{s}}$. We found that the Hall resistivity shows strong non-linearity against magnetic field and the magnetoresistance becomes very large at low temperatures. These results give evidence for the manifestation of multiple carriers with distinct characters in the ordered phase below $T_{\mathrm{s}}$. By analyzing the magnetic field dependences, we found that at least three carriers equally contribute to the charge transport in the ordered phase, which is in good agreement with the results of recent quantum oscillation measurements.

arXiv comment20 pages, 8 figures, 2 tables, Published in Physical Review B

References in corpus (18)

• Spin density wave anomaly at 140 K in the ternary iron arsenide BaFe2As2
• Evidence for an electron nematic phase transition in underdoped iron pnictide superconductors
• Magnetic order in BaFe2As2, the parent compound of the FeAs based superconductors in a new structural family
• Symmetry breaking orbital anisotropy on detwinned Ba(Fe1-xCox)2As2 above the spin density wave transition
• First order structural phase transition in CaFe${}_2$As${}_2$
• Uniaxial strain detwinning of CaFe2As2 and BaFe2As2: optical and transport study
• Observation of Dirac Cone Electronic Dispersion in BaFe2As2
• Magnetic and structural transitions in layered FeAs systems: AFe2As2 versus RFeAsO compounds
• Unprecedented anisotropic metallic state in BaFe2As2 revealed by optical spectroscopy
• Unconventional electronic reconstruction in undoped (Ba,Sr)Fe${}_2$As${}_2$ across the spin density wave transition
• Electron and hole Dirac cone states in-pairs in Ba(FeAs)${}_2$ confirmed by magnetoresistance
• Evolution of the optical spectrum with doping in iron pnictides Ba(Fe1-xCox)2As2
• Intrinsic pinning on structural domains in underdoped single crystals of Ba(Fe${}_{1-x}$Co${}_x$)${}_2$As${}_2$
• Quantum oscillations in the parent pnictide BaFe${}_2$As${}_2$ : itinerant electrons in the reconstructed state
• On the origin of non-monotonic doping dependence of the in-plane resistivity anisotropy in Ba(Fe${}_{1-x}{T}_x$)${}_2$As${}_2$, $T$ = Co, Ni and Cu
• Complete Fermi surface in BaFe${}_2$As${}_2$ observed via Shubnikov-de Haas oscillation measurements on detwinned single crystals
• Heat capacity study of BaFe${}_2$As${}_2$: effects of annealing
• In-plane anisotropy of electrical resistivity in the strain-detwinned SrFe2As2

Cited by in corpus (45)

• Anisotropic Impurity-States, Quasiparticle Scattering and Nematic Transport in Underdoped Ca(Fe1-xCox)2As2
• Dichotomy between the hole and electrons behavior in the multiband FeSe probed by ultra high magnetic fields
• Variation of transition temperatures and residual resistivity ratio in vapor-grown FeSe
• Effect of uniaxial strain on the structural and magnetic phase transitions in BaFe${}_2$As${}_2$
• Anisotropy of the in-plane resistivity of underdoped Ba(Fe${}_{1-x}$Co${}_x$)${}_2$As${}_2$ superconductors induced by impurity scattering in the antiferromagnetic orthorhombic phase
• Electron carriers with possible Dirac-cone-like dispersion in FeSe${}_{1-x}$S${}_x$ ($x$ = 0 and 0.14) single crystals triggered by structural transition
• Effect of Co doping on the in-plane anisotropy in the optical spectrum of underdoped Ba(Fe1-xCox)2As2
• Normal-state charge dynamics in doped BaFe2As2: Roles of doping and necessary ingredients for superconductivity
• Coexistence of orbital and quantum critical magnetoresistance in FeSe${}_{1-x}$S${}_x$
• Effect of doping on the magnetostructural ordered phase of iron arsenides: A comparative study of the resistivity anisotropy in the doped BaFe${}_2$As${}_2$ with doping into three different sites
• Optical conductivity of iron-based superconductors
• Annealing-tunable charge density wave in the kagome antiferromagnet FeGe
• Magnetotransport study of the pressure-induced antiferromagnetic phase in FeSe
• Strong electronic correlations in iron pnictides: Comparison of the optical spectra for BaFe2As2-related compounds
• Magnetoresistance scaling, disorder, `hot spots' and the origin of $T$-linear resistivity in BaFe${}_2$(As${}_{1-x}$P${}_x$)${}_2$
• Linear magnetoconductivity in multiband spin-density-wave metals with nonideal nesting
• Highly mobile carriers in orthorhombic phases of iron-based superconductors FeSe${}_{1-x}$S${}_x$
• Role of Dirac cones in magnetotransport properties of REFeAsO (RE=rare earth) oxypnictides
• Longitudinal magnetoresistance in Co-doped BaFe2As2 and LiFeAs single crystals: Interplay between spin fluctuations and charge transport in iron-pnictides
• Control of band structure of FeSe single crystals via biaxial strain
• The change of electronic state and crystal structure by post-annealing in superconducting SrFe2(As0.65P0.35)2
• Large low-temperature magnetoresistance in SrFe2As2 single crystals
• Importance of Fermi Surface Topology for In-Plane Resistivity Anisotropy in Hole- and Electron-Doped Ba(Fe${}_{1-x}$TM${}_x$)${}_2$As${}_2$ (TM=Cr, Mn and Co)
• Electronic Phase Diagram of SrFe${}_2$(As${}_{1-x}$P${}_x$)${}_2$: Effect of Structural Dimensionality
• Evolution of Anisotropic In-plane Resistivity with doping level in Ca${}_{1-x}$Na${}_x$Fe${}_2$As${}_2$ Single Crystals
• Mobility spectrum analytical approach for intrinsic band picture of Ba(FeAs)${}_2$
• Pressure-induced superconductivity in EuFe2As2 without a quantum critical point: magnetotransport and upper critical field measurements under high pressure
• Comprehensive study of out-of-plane transport properties in BaFe${}_2$As${}_2$: Three-dimensional electronic state and effect of chemical substitution
• Suppression of backward scattering of Dirac fermions in iron pnictides Ba(Fe${}_{1-x}$Ru${}_x$As)${}_2$
• In-plane electronic anisotropy in the antiferromagnetic-orthorhombic phase of isovalent-substituted Ba(Fe${}_{1-x}$Ru${}_x$)${}_2$As${}_2$
• Temperature-induced Change in the Fermi Surface Topology in the Spin Density Wave Phase of Sr(Fe${}_{1-x}$Co${}_x$)${}_2$As${}_2$
• Memory function approach to in-plane anisotropic resistivity in the antiferromagnetic phase of iron arsenide superconductors
• Study of antiferromagnetic and nematic phase transitions in $BaF{e}_2(A{s}_{1-x}{P}_x{)}_2$ by AC micro-calorimetry and SQUID magnetometry
• Multi-band effects in in-plane resistivity anisotropy of strain-detwinned disordered Ba(Fe${}_{1-x}$Ru${}_x$)${}_2$As${}_2$
• Impact of the first order antiferromagnetic phase transition on the paramagnetic spin excitations and nematic phase of SrFe${}_2$As${}_2$
• Magnetotransport properties of FeSe in fields up to 50T
• Metallicity of Ca2Cu6P5 with Single and Double Copper-Pnictide Layers
• Unusual nodal behaviors of the superconducting gap in the iron-based superconductor Ba(Fe${}_{0.65}$Ru${}_{0.35}$)${}_2$As${}_2$: Effects of spin-orbit coupling
• Persistent Magnetism in Silver-doped BaFe2As2 Crystals
• Impact of Disorder on the Superconducting Properties and BCS-BEC Crossover in FeSe Single Crystals
• The role of magnetic excitations in magnetoresistance and Hall effect of slightly TM-substituted BaFe${}_2$As${}_2$ compounds (TM = Mn, Cu, Ni)
• Magnetotransport properties in the magnetic phase of BaFe${}_{2-x}$T${}_x$As${}_2$ (T = Co,Ni): A magnetic excitations approach
• Magnetotransport studies of optimally doped Sr(Fe${}_{1-x}$Co${}_x$)${}_2$As${}_2$
• Effect of controlled point-like disorder induced by 2.5 MeV electron irradiation on nematic resistivity anisotropy of hole-doped (Ba,K)Fe${}_2$As${}_2$
• Origin of in-plane anisotropic resistivity in the antiferromagnetic phase of Fe${}_{1+x}$Te