Magnetoelastic Coupling in the Phase Diagram of Ba1-xKxFe2As2

Abstract

We report a high resolution neutron diffraction investigation of the coupling of structural and magnetic transitions in Ba1xKxFe2As2. The tetragonal-orthorhombic and antiferromagnetic transitions are suppressed with potassium-doping, falling to zero at x <~ 0.3. However, unlike Ba(Fe1xCox)2As2, the two transitions are first-order and coincident over the entire phase diagram, with a biquadratic coupling of the two order parameters. The phase diagram is refined showing that the onset of superconductivity is at x = 0.133 with all three phases coexisting until x >~ 0.24.

arXiv comment4 pages, 5 figures

References in corpus (29)

• Superconductivity at 38 K in the iron arsenide (Ba1-xKx)Fe2As2
• Unconventional sign-reversing superconductivity in LaFeAsO_(1-x)F_x
• Magnetic Order versus superconductivity in the Iron-based layered La(O1-xFx)FeAs systems
• Structural and magnetic phase diagram of CeFeAsO1-xFx and its relationship to high-temperature superconductivity
• Theory of Electron Nematic Order in LaOFeAs
• Pressure induced superconductivity in CaFe${}_2$As${}_2$
• Superconductivity at 25 K in hole doped $(L{a}_{1-x}S{r}_x)OFeAs$
• FeAs-based superconductivity: a case study of the effects of transition metal doping on BaFe2As2
• Superconductivity and Crystal Structures of (Ba1-xKx)Fe2As2 (x = 0 - 1)
• Coexistence of the spin-density-wave and superconductivity in the (Ba,K)Fe2As2
• Effects of nematic fluctuations on the elastic properties of iron arsenide superconductors
• Lattice and magnetic instabilities in CaFe2As2: A single crystal neutron diffraction study
• Competition and coexistence of antiferromagnetism and superconductivity in underdoped Ba(Fe0.953Co0.047)2As2
• Coexistence of static magnetism and superconductivity in SmFeAsO1-xFx as revealed by muon spin rotation
• Unconventional pairing in the iron arsenide superconductors
• Electronic phase separation in the slightly underdoped iron pnictide superconductor Ba(1-x)K(x)Fe(2)As(2)
• Orbital-dependent modifications of electronic structure across magneto-structural transition in BaFe2As2
• Where Are the Extra d Electrons in Transition-Metal Substituted Fe Pnictides?
• Strong coupling between magnetic and structural order parameters in SrFe2As2
• Valley density-wave and multiband superconductivity in Fe-pnictides
• The nature of the magnetic and structural phase transitions in BaFe${}_2$As${}_2$
• Interplay of magnetic and structural transitions in Fe-based pnictide superconductors
• Homogeneous vs. inhomogeneous coexistence of magnetic order and superconductivity probed by NMR in Co and K doped iron pnictides
• Superconductivity, magnetism and crystal chemistry of Ba1-xKxFe2As2
• Magnetic-superconducting phase boundary of SmFeAsO${}_{1-x}$F${}_x$ studied via muon spin rotation: Unified behavior in a pnictide family
• Heat capacity study of BaFe${}_2$As${}_2$: effects of annealing
• The role of striction at magnetic and structural transitions in iron-pnictides
• Distinct high-T transitions in underdoped Ba${}_{1-x}$K${}_x$Fe${}_2$As${}_2$
• Magnetic Impurities in the Pnictide Superconductor Ba${}_{1-x}$K${}_x$Fe${}_2$As${}_2$

Cited by in corpus (66)

• Superconductivity in Iron Compounds
• Antiferromagnetic order and spin dynamics in iron-based superconductors
• Magnetism and its microscopic origin in iron-based high-temperature superconductors
• Preemptive nematic order, pseudogap, and orbital order in the iron pnictides
• Reconstruction of Band Structure Induced by Electronic Nematicity in an FeSe Superconductor
• Lack of coupling between superconductivity and orthorhombic distortion in stoichiometric single-crystalline FeSe
• Nematicity, magnetism and superconductivity in FeSe
• Phase Diagram of Ba1-xKxFe2As2
• Magnetically-Driven Suppression of Nematic Order in an Iron-Based Superconductor
• Superconductivity-induced reentrance of orthorhombic distortion in Ba1-xKxFe2As2
• A magnetic origin for high temperature superconductivity in iron pnictides
• Electronic nematic susceptibility of iron-based superconductors
• Microscopic co-existence of superconductivity and magnetism in Ba1-xKxFe2As2
• Coexistence and competition of the short-range incommensurate antiferromagnetic order with superconductivity in BaFe2-xNixAs2
• Effect of Fermi Surface Nesting on Resonant Spin Excitations in Ba1-xKxFe2As2
• Structural, Magnetic, and Superconducting Properties of Ba1-xNaxFe2As2
• The phase diagrams of iron-based superconductors: theory and experiments
• From d-wave to s-wave pairing in the iron-pnictide superconductor (Ba,K)Fe2As2
• Non-monotonic pressure evolution of the upper critical field in superconducting FeSe
• A comprehensive scenario of the single crystal growth and doping dependence of resistivity and anisotropic upper critical fields in (Ba${}_{1-x}$K${}_x$)Fe${}_2$As${}_2$ ($0.22\le x\le 1$)
• Tetragonal magnetic phase in Ba${}_{1-x}$K${}_x$Fe${}_2$As${}_2$ from x-ray and neutron diffraction
• Microscopic coexistence of antiferromagnetic order and superconductivity in Ba${}_{0.77}$K${}_{0.23}$Fe${}_2$As${}_2$
• Detection of Orbital Fluctuations Above the Structural Transition Temperature in the Iron-Pnictides and Chalcogenides
• First and second order magnetic and structural transitions in BaFe${}_{2(1-x)}$Co${}_{2x}$As${}_2$
• Dynamic competition between spin density wave order and superconductivity in underdoped $B{a}_{1-x}{K}_{x}F{e}_{2}A{s}_2$
• Anisotropic but nodeless superconducting gap in the presence of spin density wave in iron-pnictide superconductor NaFe1-xCoxAs
• Hole-doping in BaFe${}_2$As${}_2$: The case of Ba${}_{1-x}$Na${}_x$Fe${}_2$As${}_2$ single crystals
• Gap nodes induced by coexistence with antiferromagnetism in iron-based superconductors
• Detailed magnetic and structural analysis mapping a robust magnetic C4 dome in Sr1-xNaxFe2As2
• The electronic specific heat of Ba1-xKxFe2As2 (x=0 to 1.0) from 2K to 380K
• Neutron-scattering measurements of the spin excitations in LaFeAsO and Ba(Fe${}_{0.953}$Co${}_{0.047}$)${}_2$As${}_2$: Evidence for a sharp enhancement of spin fluctuations by nematic order
• Topological Superconductivity Induced by Magnetic Texture Crystals
• Symmetry of re-entrant tetragonal phase in Ba1-xNaxFe2As2: Magnetic versus orbital ordering mechanism
• Unravelling incommensurate magnetism and its emergence in iron-based superconductors
• Competition between superconductivity and magnetic/nematic order as a source of anisotropic superconducting gap in underdoped Ba${}_{1-x}$K${}_x$Fe${}_2$As${}_2$
• Microscopic Evidence of Direct Coupling between Magnetic and Superconducting Order Parameters in BaFe${}_2$(As${}_{1-x}$P${}_x$)${}_2$
• Coexistence of superconductivity and antiferromagnetism in Ca${}_{0.74(1)}$La${}_{0.26(1)}$(Fe${}_{1-x}$Co${}_x$)As${}_2$ single crystals
• Interplane resistivity of underdoped single crystals (Ba${}_{1-x}$K${}_x$)Fe${}_2$As${}_2$, $0\le x<0.34$
• Spin nematic fluctuations near a spin-density-wave phase
• Close correlation between magnetic properties and the soft phonon mode of the structural transition in BaFe${}_2$As${}_2$ and SrFe${}_2$As${}_2$
• Superconducting pairing in the spin-density-wave phase of iron pnictides
• NMR Study of the New Magnetic Superconductor CaK(Fe$0.951Ni0.049)4As4: Microscopic Coexistence of Hedgehog Spin-vortex Crystal and Superconductivity
• Frustrated structural instability in superconducting quasi-one-dimensional K${}_2$Cr${}_3$As${}_3$
• Doping evolution of the superconducting gap structure in the underdoped iron arsenide Ba1-xKxFe2As2 revealed by thermal conductivity
• Iron-based superconductors: tales from the nuclei
• Muon spin rotation and infrared spectroscopy study of magnetism and superconductivity in Ba${}_{1-x}$K${}_x$Fe${}_2$As${}_2$
• Trapping Majorana Zero Modes in Vortices of Magnetic Texture Crystals Coupled to Nodal Superconductors
• Physics picture from neutron scattering study on Fe-based superconductors
• High resolution x-ray scattering studies of structural phase transitions in Cr-doped BaFe2As2
• Mechanisms for Magnetic Skyrmion Catalysis and Topological Superconductivity
• Dependence of the absolute value of the penetration depth in $(\mathbf{B}{\mathbf{a}}_{1-\mathbf{x}}{\mathbf{K}}_{\mathbf{x}})\mathbf{F}{\mathbf{e}}_2\mathbf{A}{\mathbf{s}}_2$ on doping
• 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
• Revisiting the phase diagram of LaFe${}_{1-x}$Co${}_x$AsO on single crystals by thermodynamic methods
• Intertwined charge, spin, and pairing orders in doped iron ladders
• Topological surface states and Andreev bound states in superconducting iron pnictides
• Magnetism and its coexistence with superconductivity in CaK(Fe${}_{0.949}$Ni${}_{0.051}$)${}_4$As${}_4$: muon spin rotation/relaxation studies
• Anomalous magneto-elastic and charge doping effects in thallium-doped BaFe2As2
• Coexistence of Antiferromagnetism and Superconductivity in Iron-Based Superconductors
• Pressure-induced magnetism in iron-based superconductors $A$Fe${}_2$As${}_2$ ($A=$ K, Cs, Rb)
• Suppression of the antiferromagnetic order when approaching the superconducting state in a phase-separated crystal of K${}_x$Fe${}_{2-y}$Se${}_2$
• A neutron scattering study of the under-doped Ba${}_{1-x}$K${}_x$Fe${}_2$As${}_2$, x=0.09 and 0.17 self-flux grown single crystals and the universality of the tricritical point
• Absence of nematic instability in LiFeAs
• Coupled multiple-mode theory for $s_{\pm }$ pairing mechanism in iron based superconductors
• Interplay of stripe and double-Q magnetism with superconductivity in ${\mathrm{Ba}}_{1-x}{\mathrm{K}}_x{\mathrm{Fe}}_2{\mathrm{As}}_2$ under the influence of magnetic fields
• Evidence of diamagnetic fluctuations above Tc in BaFe2-xCoxAs2 single crystals
• New mechanisms to engineer magnetic skyrmions and topological superconductors