Coexistence of incommensurate magnetism and superconductivity in Fe_{1+y}Se_xTe_{1-x}

Abstract

We report an investigation into the superconducting and magnetic properties of Fe_{1+y}Se_{x}Te_{1-x} single crystals by magnetic susceptibility, muon spin rotation, and neutron diffraction. We find three regimes of behavior in the phase diagram for 0\leq x\leq 0.5: (i) commensurate magnetic order for x< 0.1, (ii) bulk superconductivity for $x\lesssim 0.1$, and (iii) a range \sim 0.25\leq x\leq 0.45 in which superconductivity coexists with static incommensurate magnetic order. The results are qualitatively consistent with a two-band mean-field model in which itinerant magnetism and extended s-wave superconductivity are competing order parameters.

4 pages, 4 figures

References in corpus (23)

• Magnetic Order versus superconductivity in the Iron-based layered La(O1-xFx)FeAs systems
• Superconductivity at 41 K and its competition with spin-density-wave instability in layered CeO${}_{1-x}$F${}_x$FeAs
• Magnetic order in BaFe2As2, the parent compound of the FeAs based superconductors in a new structural family
• Structural and magnetic phase diagram of CeFeAsO1-xFx and its relationship to high-temperature superconductivity
• Incommensurate magnetic order in the alpha-Fe(Te,Se) superconductor systems
• First-order magnetic and structural phase transitions in Fe${}_{1+y}$Se${}_x$Te${}_{1-x}$
• Bulk Superconductivity at 14 K in Single Crystals of Fe1+yTexSe1-x
• The electronic phase diagram of the LaO1-xFxFeAs superconductor
• Lattice and magnetic instabilities in CaFe2As2: A single crystal neutron diffraction study
• Commensurate Spin Density Wave in LaOFeAs: A Local Probe Study
• Coexistence of static magnetism and superconductivity in SmFeAsO1-xFx as revealed by muon spin rotation
• Electronic phase separation in the slightly underdoped iron pnictide superconductor Ba(1-x)K(x)Fe(2)As(2)
• Spin and Lattice Structure of Single Crystal SrFe2As2
• Atomic coexistence of superconductivity and incommensurate magnetic order in the Ba(Fe1-xCox)2As2 pnictide
• Strong coupling between magnetic and structural order parameters in SrFe2As2
• Lattice and Magnetic structures of PrFeAsO, PrFeAsO0.85F0.15 and PrFeAsO0.85
• Interplay between magnetism and superconductivity in Fe-pnictides
• Valley density-wave and multiband superconductivity in Fe-pnictides
• Muon spin relaxation studies of magnetic order and superfluid density in antiferromagnetic NdOFeAs, BaFe2As2 and superconducting (Ba,K)Fe2As2
• Magnetic-superconducting phase boundary of SmFeAsO${}_{1-x}$F${}_x$ studied via muon spin rotation: Unified behavior in a pnictide family
• MuSR studies of RE(O,F)FeAs (RE = La, Nd, Ce) and LaOFeP systems: possible incommensurate/stripe magnetism and superfluid density
• Short-range incommensurate magnetic order near the superconducting phase boundary in Fe(1+d)Te(1-x)Se(x)
• Phase diagram of the PrFeAsO${}_{1-x}$F${}_x$ superconductor

Cited by in corpus (60)

• The Puzzle of High Temperature Superconductivity in Layered Iron Pnictides and Chalcogenides
• Magnetism in Fe-based superconductors
• From (pi, 0) magnetic order to superconductivity with (pi, pi) magnetic resonance in Fe1.02(Te1-xSex)
• Pressure Induced Static Magnetic Order in Superconducting FeSe_1-x
• Unusual band renormalization in the simplest iron based superconductor
• Coexistence of Magnetism and Superconductivity in the Iron-based Compound Cs_0.8(FeSe_0.98)_2
• Coexistence of Superconductivity and Magnetism in FeSe_1-x under Pressure
• From antiferromagnetism to superconductivity in Fe 1+y(Te1-x,Sex) (0 < x < 0.20): a neutron powder diffraction analysis
• Anisotropic superconducting properties of single-crystalline FeSe0.5Te0.5
• Effect of Fe excess on structural, magnetic and superconducting properties of single-crystalline Fe(1+x)Te(1-y)Se(y)
• Interplay between magnetism and superconductivity in iron-chalcogenide superconductors: crystal growth and characterizations
• Investigation of the spin-glass regime between the antiferromagnetic and superconducting phases in Fe${}_{1+y}$Se${}_x$Te${}_{1-x}$
• Physical properties of FeSe${}_{0.5}$Te${}_{0.5}$ single crystals grown under different conditions
• Tuning the superconducting and magnetic properties in Fe_ySe_0.25Te_0.75 by varying the Fe-content
• Revised Phase Diagram for FeTe1-xSex system with less excess Fe atoms
• Evidence of local structural inhomogeneity in FeSe(1-x)Te(x) from extended x-ray absorption fine structure
• Temperature and time scaling of the peak-effect vortex configuration in FeTe${}_{0.7}$Se${}_{0.3}$
• Evidence for interfacial superconductivity in a bi-collinear antiferromagnetically ordered FeTe monolayer on a topological insulator
• Growth conditions, structure, and superconductivity of pure and metal-doped FeTe1-xSex single crystals
• Electronic correlations and unusual superconducting response in the optical properties of the iron-chalcogenide FeTe0.55Se0.45
• A study of electronic structure of FeSe${}_{1-x}$Te${}_x$ chalcogenides by Fe and Se K-edge x-ray absorption near edge structure measurements
• The phase diagrams of iron-based superconductors: theory and experiments
• Transport and superconducting properties of Fe-based superconductors: SmFeAs(O1-x Fx) versus Fe1+y (Te1-x, Sex)
• Continuous magnetic and structural phase transitions in Fe1+yTe
• The magnetic and structural properties near the Lifshitz point in Fe1+xTe
• Calorimetric Evidence of Strong-Coupling Multiband Superconductivity in Fe(Te0.57Se0.43) Single Crystal
• Disappearance of static magnetic order and evolution of spin fluctuations in Fe${}_{1+\delta }$Se${}_x$Te${}_{1-x}$
• Electron correlation in FeSe superconductor studied by bulk-sensitive photoemission spectroscopy
• Microstructural magnetic phases in superconducting FeTe0.65Se0.35
• Phase Separation and Chemical Inhomogeneity in the Iron Chalcogenide Superconductor Fe1+yTexSe1-x
• Tuning of competing magnetic and superconducting phase volumes in LaFeAsO$_0.945F_0.055 by hydrostatic pressure
• Magnetic excitations of Fe_{1+y}Se_xTe_{1-x} in magnetic and superconductive phases
• Electron-phonon coupling in cuprate and iron-based superconductors revealed by Raman scattering
• Anomalous dependence of the c-axis polarized Fe B${}_{1g}$ phonon mode with Fe and Se concentrations in Fe${}_{1+y}$Te${}_{1-x}$Se${}_x$
• Disorder-driven electronic localization and phase separation in superconducting Fe1+yTe0.5Se0.5 single crystals
• Spin anisotropy of the resonance in superconducting FeSe0.5Te0.5
• Pressure induced ferromagnetism in antiferromagnetic Fe_1.03Te
• Soft striped magnetic fluctuations competing with superconductivity in Fe_{1+x}Te
• Coupling of electronic and magnetic properties in Fe1+y(Te1-xSex)
• Tuning electronic properties of FeSe${}_{0.5}$Te${}_{0.5}$ thin flakes by a novel field effect transistor
• Spin fluctuations and superconductivity in powders of Fe_1+xTe_0.7Se_0.3 as a function of interstitial iron concentration
• How robust the global measurements of London penetration depth are: the case of Fe(Te${}_{1-x}$,Se${}_x$)
• Superconductivity in PbO-type Fe chalcogenides
• Interplay of the electronic and lattice degrees of freedom in A_{1-x}Fe_{2-y}Se_{2} superconductors under pressure
• Spectral weight transfer in strongly correlated Fe${}_{1.03}$Te
• Microstructural and transport properties of superconducting FeTe0.65Se0.35 crystals
• Coexistence of superconductivity and magnetism in K0.8Fe2Se1.4S0.4
• Magnetothermoelectric effects in Fe{1+d}Te{1-x}Se{x}
• Optical properties of the iron-chalcogenide superconductor FeTe0.55Se0.45
• Doping dependence of the spin excitations in Fe-based superconductors Fe1+yTe1-xSex
• Magnetic glassy phase in FeSeTe single crystals
• Exploration of iron-chalcogenide superconductors
• Nano-scale Inhomogeneous Superconductivity in Fe(Te1-xSex) Probed by Nanostructure-transport
• Magnetic neutron scattering studies on the Fe-based superconductor system Fe${}_{1+y}$Te${}_{1-x}$Se${}_x$
• Pressure effect on superconductivity in FeSe0.5Te0.5
• Raman scattering in iron-based superconductors
• Observation and characterization of the zero energy conductance peak in the vortex core state of FeTe${}_{0.55}$Se${}_{0.45}$
• Atomic-scale coexistence of short-range magnetic order and superconductivity in Fe${}_{1+y}$Se${}_{0.1}$Te${}_{0.9}$
• Interplay of structure, magnetism, and superconductivity in Se substituted iron telluride with excess Fe
• Short-lived electron excitations in $\mathrm{FeT}{\mathrm{e}}_{1-\mathrm{x}}\mathrm{S}{\mathrm{e}}_{\mathrm{x}}$ as revealed by microwave absorption