Superconductivity at 36 K in beta-Fe1.01Se with the compression of the interlayer separation under pressure

Abstract

In this letter, we report that the superconductivity transition temperature in beta-Fe1.01Se increases from 8.5 to 36.7 K under applied pressure of 8.9 GPa. It then decreases at higher pressure. A dramatic change in volume is observed at the same time Tc rises, due to a collapse of the separation between the Fe2Se2 layers. A clear transition to a linear resistivity normal state is seen on cooling at all pressures. No static magnetic ordering is observed for the whole p-T phase diagram. We also report that at higher pressure (starting around 7 GPa and completed at 38 GPa), Fe1.01Se transforms to a hexagonal NiAs-type structure and displays non-magnetic, insulating behavior. The inclusion of electron correlation in band structure caculations is necessary to describe this behavior, signifying that such correlations are important in this chemical system. Our results strongly support unconventional superconductivity in beta-Fe1.01Se.

arXiv comment17 pages, 4 figures

References in corpus (18)

• Superconductivity at 38 K in the iron arsenide (Ba1-xKx)Fe2As2
• Magnetic Order versus superconductivity in the Iron-based layered La(O1-xFx)FeAs systems
• Superconductivity at 43 K in Samarium-arsenide Oxides $SmFeAs{O}_{1-x}{F}_x$
• Density functional study of FeS, FeSe and FeTe: Electronic structure, magnetism, phonons and superconductivity
• Structural and magnetic phase diagram of CeFeAsO1-xFx and its relationship to high-temperature superconductivity
• Superconductivity at 27 K in tetragonal FeSe under high pressure
• Extreme Sensitivity of Superconductivity to Stoichiometry in FeSe (Fe1+dSe)
• Pressure evolution of low-temperature crystal structure and bonding of 37 K $T_c$ FeSe superconductor
• The electronic phase diagram of the LaO1-xFxFeAs superconductor
• Why Does Undoped FeSe Become A High Tc Superconductor Under Pressure?
• Electronic Phase Diagram of High-T_c Cuprate Superconductors from a Mapping of the In-Plane Resistivity Curvature
• Structure and superconductivity of LiFeAs
• Coexistence of static magnetism and superconductivity in SmFeAsO1-xFx as revealed by muon spin rotation
• Density Functional Study of Excess Fe in Fe${}_{1+x}$Te: Magnetism and Doping
• Neutron Studies of the Iron-based Family of High TC Magnetic Superconductors
• Magnetism Driven by Anion Vacancies in Superconducting $\alpha$--FeSe${}_{1-x}$
• Pressure-Induced Effects on the Structure of the FeSe Superconductor
• The intrinsic electronic phase diagram of iron-oxypnictide superconductors

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• Investigation of Transport Properties for FeSe${}_{1-x}$Te${}_x$ Thin Films under Magnetic Fields
• Band structure reconstruction across nematic order in high quality FeSe single crystal as revealed by optical spectroscopy study
• Synthesis, structural and physical properties of ${\delta }^{\prime }$-FeSe${}_{1-x}$
• Superconductivity at 44.4 K achieved by intercalating EMIM+ into FeSe
• Pressure induced Lifshitz transition in ThFeAsN
• First-principles theory of electron-spin fluctuation coupling and superconducting instabilities in iron selenide
• Complex biphase nature of the superconducting dome of the FeSe phase diagram
• Magnetic phase transitions and superconductivity in strained FeTe
• Effect of nominal substitution of transition metals for excess Fe in Fe_{1+x}Se superconductor
• Crystal structure instability of FeSe grains: Formation of non-superconducting phase at the grain surface
• SDW transition of Fe1 zigzag chains and metamagnetic transition of Fe2 in TaFe${}_{1+y}$Te${}_3$
• On the phonon dispersion relation of single-crystalline $\beta$--FeSe
• Emergent high-spin state above 7 GPa in superconducting FeSe
• Evolution of vortex pinning in the FeSe${}_{1-x}$S${}_x$ system
• Observation of Ising spin-nematic order and its close relationship to the superconductivity in FeSe single crystals
• Revisiting the electron-doped SmFeAsO: enhanced superconductivity up to 58.6 K by Th and F codoping
• Coexistence of magnetism and superconductivity in separate layers of the iron-based superconductor Li_{1-x}Fe_{x}(OH)Fe_{1-y}Se
• Optical properties of the iron-chalcogenide superconductor FeTe0.55Se0.45
• Probing the direct factor for superconductivity in FeSe-Based Superconductors by Raman Scattering
• Simultaneous measurement of pressure evolution of crystal structure and superconductivity in FeSe0.92 using designer diamonds
• Single crystal growth and structural characterization of FeTe1-xSx
• The interplay between magnetism, structure, and strong electron-phonon coupling in binary FeAs under pressure
• RSAVS superconductors: materials with a superconducting state that is robust against large volume shrinkage
• Ab initio prediction of pressure-induced structural phase transition of superconducting FeSe
• Electronic structure and nematic phase transition in superconducting multi-layer FeSe films grown by pulsed laser deposition method
• Diamagnetic Vortex Barrier Stripes in Underdoped $BaF{e}_2(A{s}_{1-x}{P}_x{)}_2$
• (CaO)(FeSe): A Layered Wide Gap Oxychalcogenide Semiconductor
• Structural-transition-induced quasi two-dimensional Fermi surface in FeSe
• Positive and negative chemical pressure effects investigated in electron-doped FeSe films with an electric-double-layer structure
• Brief review on iron-based superconductors: are there clues for unconventional superconductivity?
• Pressure-induced superconductivity in palladium sulfide
• Asymmetric stress engineering of dense dislocations in brittle superconductors for strong vortex pinning
• Pure nematic state in iron-based superconductor
• Probing the superconducting gap structure of (Li${}_{1-x}$Fe${}_x$)OHFeSe
• Effects of pressure-induced phase transitions on superconductivity in the single crystal Fe1.02Se
• Frustrated magnetic interactions in FeSe
• Quantum Transitions of Nematic Phases in a Spin-$1$ Bilinear-Biquadratic Model and Their Implications for FeSe
• Evidence for an Additional Symmetry Breaking from Direct Observation of Band Splitting in the Nematic State of FeSe Superconductor
• Exploration of iron-chalcogenide superconductors
• Nano-scale Inhomogeneous Superconductivity in Fe(Te1-xSex) Probed by Nanostructure-transport
• Molecular beam epitaxy preparation and in situ characterization of FeTe thin films
• Structural and electronic properties of ultrathin FeSe films grown on Bi${}_2$Se${}_3$(0001) studied by STM/STS
• Insulator-like behavior coexisting with metallic electronic structure in strained FeSe thin films grown by molecular beam epitaxy
• Magnetic neutron scattering studies on the Fe-based superconductor system Fe${}_{1+y}$Te${}_{1-x}$Se${}_x$
• Se content $x$ dependence of electron correlation strength in Fe${}_{1+y}$Te${}_{1-x}$Se${}_x$
• Pressure effect on superconductivity in FeSe0.5Te0.5
• Evidence for a two-fold symmetric superconducting gap in a monolayer of FeSe${}_{0.5}$Te${}_{0.5}$ on a topological insulator
• Pressure Dependence of Superconducting Transition Temperature on Perovskite-Type Fe-Based Superconductors and NMR Study of Sr2VFeAsO3
• Elucidating the magnetic and superconducting phases in the alkali metal intercalated iron chalcogenides
• Preliminary Tc calculations for iron-based superconductivity in NaFeAs, LiFeAs, FeSe and nanostructured FeSe/SrTiO3 Superconductors
• Effect of disorder on the competition between nematic and superconducting order in FeSe
• Pressure study of the new iron-based superconductor K0.8Fe2Se2
• High-Pressure Phase Diagram of NdFeAsO${}_{0.9}$F${}_{0.1}$: Disappearance of superconductivity on the verge of ferromagnetism from nd moments
• Microstructural control of the transport properties of $\beta$-FeSe films grown by sputtering
• Fast synthesis of Fe1.1Se1-xTex superconductors in a self-heating and furnace-free way
• Coexistence of ferromagnetic and stripe-type antiferromagnetic spin fluctuations in YFe${}_2$Ge${}_2$
• Possible nodal superconducting gap in Fe${}_{1+y}$(Te${}_{1-x}$Se${}_x$) single crystals from ultra-low temperature penetration depth measurements
• Interrelationships between nematicity, antiferromagnetic spin fluctuations and superconductivity: Role of hotspots in FeSe${}_{1-x}$S${}_x$ revealed by high pressure ${}^{77}$Se NMR study
• Particulate Generation on Surface of Iron Selenide Films by Air Exposure
• Transport properties of iron-based FeTe0.5Se0.5 superconducting wire
• Enhanced superconductivity and anisotropy of FeTe0.6Se0.4 single crystals with Li-NH3 intercalation
• First-principles study of FeSe epitaxial films on SrTiO3
• Fermi surface, pressure-induced antiferromagnetic order, and superconductivity in FeSe
• Suppression of Superconductivity and Nematic Order in Fe${}_{1-y}$Se${}_{1-x}$S${}_x$ (0$\le$$x$$\le$1, $y$$\le$0.1) Crystals by Anion Height Disorder
• Coexistence of localized and itinerant magnetism in intercalated iron-selenide (Li,Fe)OHFeSe
• A flat band at the chemical potential of a Fe1.03Te0.94S0.06 superconductor observed by angle-resolved photoemission spectroscopy
• The role of correlations in the high-pressure phase of FeSe
• Spin glass in semiconducting KFe${}_{1.05}$Ag${}_{0.88}$Te${}_2$ single crystals
• Interplay of superconductivity and magnetism in FeSe${}_{1-x}$Te${}_x$ compounds. Pressure effects
• Nodal superconductivity coexists with low-moment static magnetism in single-crystalline tetragonal FeS: A muon spin relaxation and rotation study
• Pressure effects on the electronic properties of the undoped superconductor ThFeAsN
• Phase Diagram of FeSe Deposited by Electrochemical Technique with Different Temperature and Voltage
• Piezomagnetism of FeSe single crystals
• Structural and magnetic properties of Fe1+dTe single crystals
• High-throughput investigation of tunable superconductivity in FeSe films
• Magnetism and Superconductivity of S-substituted FeTe
• Charge carrier dynamics of FeSe thin film investigated by terahertz magneto-optical spectroscopy
• Multiple energy gap features of superconducting FeSe investigated by tunneling spectroscopy
• Structure, superconductivity, and magnetism in Rb1-xFe1.6Se2-zSz
• Importance of Itinerancy and Quantum Fluctuations for the Magnetism in Iron Pnictides
• Robust superconductivity and fragile magnetism induced by the strong Cu impurity scattering in the high-pressure phase of FeSe
• Pressure dependence of upper critical fields in FeSe single crystals
• Analysis of nonlinear conductivity of point contacts on the base of FeSe in the normal and superconducting state
• Electronic and magnetic properties of orthorhombic iron selenide (FeSe)
• Ab-initio investigation of lattice distortions in response to van der Waals interactions in FeSe
• Superconductivity of highly spin-polarized electrons in FeSe probed by ${}^{77}$Se NMR
• Disappearance and Survival of Superconductivity in FeSe under High Pressure
• Evolution of lattice, spin, and charge properties across the phase diagram of FeSe${}_{1-x}$S${}_x$
• Magnetotransport properties of FeSe in fields up to 50T
• Identifying the dominant pairing interaction in high-$T_c$ FeSe superconductors through Leggett modes
• The electronic structure and magnetic phase transition of hexagonal FeSe thin films studied by photoemission spectroscopy
• Two-band conductivity of a FeSe${}_{0.5}$Te${}_{0.5}$ film by reflectance measurements in the terahertz and infrared range
• High-field irreversible moment reorientation in the antiferromagnet Fe${}_{1.1}$Te
• Bi Substitution Effects on Superconductivity of Valence-Skip superconductor AgSnSe2
• Modulation doping of the FeSe monolayer on SrTiO${}_3$
• Accurate determination of the Fermi surface of tetragonal FeS via quantum oscillation measurements and quasiparticle self-consistent \textit{GW} calculations
• Anisotropic pressure effects on superconductivity in Fe1+yTe1-xSx
• Electronic structure of ruthenium-doped iron chalcogenides
• Phase transitions in a frustrated biquadratic Heisenberg model with coupled orbital degree of freedom for iron-based superconductors
• Sulfur-induced magnetism in FeSe${}_{1-x}$S${}_x$ thin films on LaAlO${}_3$ revealed by muon spin rotation/relaxation
• Exploring multichannel superconductivity in ThFeAsN
• Uniaxial $c$-axis pressure effects on underdoped BaFe${}_2$(As${}_{0.72}$P${}_{0.28}$)${}_2$ superconductor
• Importance of Fermi surface and magnetic interactions for the superconducting dome in electron doped FeSe intercalates
• $\mathrm{L}{\mathrm{i}}_{\mathrm{x}}({\mathrm{C}}_5{\mathrm{H}}_5\mathrm{N}{)}_{\mathrm{y}}\mathrm{F}{\mathrm{e}}_{2-\mathrm{z}}\mathrm{S}{\mathrm{e}}_2$: a defect resilient expanded-lattice high-temperature superconductor
• Stabilization and heteroepitaxial growth of metastable tetragonal FeS thin films by pulsed laser deposition
• Unveiling the quasiparticle behaviour in the pressure-induced high-$T_c$ phase of an iron-chalcogenide superconductor
• In-situ visualization of local distortions in the high-$T_c$ molecule-intercalated $L{i}_x(C_5{H}_{5}N{)}_{y}F{e}_{2-z}S{e}_2$ superconductor
• NMR Characterization of Sulphur Substitution Effects in the K(x)Fe(2-y)Se(2-z)S(z) high Tc Superconductor
• Hall coefficient diagnostics of surface state in pressurized SmB6
• Observation of two distinct superconducting domes under pressure in tetragonal FeS
• Interplay between orbital-quantization effects and the Fulde-Ferrell-Larkin-Ovchinnikov instability in multiple-band layered superconductors
• Crystal structures and the sign reversal Hall resistivity in iron-based superconductors Lix(C3H10N2)0.32FeSe (0.15<x<0.4)
• Coupled Magnetic and Superconducting Transitions in Sr${}_2$VO${}_3$FeAs Under Pressure
• Conductance spectrum and superconducting gap structures observed in c-axis FeSe0.3Te0.7/Au junctions
• Fluctuating Cooper pairs in FeSe at temperatures exceeding double Tc
• Identifying materials with charge-spin physics using charge-spin susceptibility computed from first principles
• Unconventional superconductivity induced by suppressing an iron-selenium based Mott insulator CsFe4-xSe4
• Effects of Chemical Pressure on Superconductivity in Electrochemically Intercalated (TMA)yFe2(Se1-xSx)2 (TMA = Tetramethylammonium)
• The tunneling spectra and superconducting gaps observed by using scanning tunneling microscope near the grain-boundary of FeSe0.3Te0.7 films
• Impact of atomic defects in the electronic states of FeSe${}_{1-x}$S${}_x$ superconducting crystals
• Correlation between Fermi surface reconstruction and superconductivity in pressurized FeTe0.55Se0.45
• Multiband effect in elastoresistance of Fe(Se,Te)
• Self-consistent and Maxwell approximations to describe the excess conductivity anisotropy in FeSe above superconducting transition temperature
• Optical Properties of Superconducting K${}_{0.8}$Fe${}_{1.7}$(Se${}_{0.73}$S${}_{0.27}$)${}_2$ Single Crystals
• Synthesis and physical properties of the new potassium iron selenide superconductor K0.80Fe1.76Se2
• Nodeless multigap superconductivity in organic-ion-intercalated (tetrabutyl~ammonium)${}_{0.3}$FeSe
• Two-step phase transitions in Fe(Se,Te)
• Suppression of nematicity by tensile strain in multilayer FeSe/SrTiO${}_3$ films
• Evolution of tetragonal phase in the FeSe wire fabricated by a novel chemical-transformation PIT process
• Studies of superconductivity of Fe chalcogenides in films grown by PLD technique
• Time-Resolved Photoemission Spectroscopy of Quantum Materials Using High Harmonic Generation: Probing Electron-Phonon Interactions and Non-Equilibrium Dynamics
• Improvement of the superconducting properties of polycrystalline FeSe by silver addition
• Superconductivity of 30.4 K and its Reemergence under Pressure in Fe1.11Se Synthesized via Ion-exchange and De-intercalation Reaction
• Crossover of Superconductivity across the antiferromagnetic end point in FeSe${}_{1-\mathrm{x}}$S${}_{\mathrm{x}}$ under pressure
• Evolution of charge dynamics in FeSe${}_{1-x}$Te${}_x$: Effects of electronic correlations and nematicity
• Formation of single-phase disordered CsxFe2-ySe2 at high pressure
• Hot Electron-Driven Structural Expansion and Magnetic Collapse in Bilayer FeSe
• Robustness of superconducting properties to transition metal substitution and impurity phases in Fe1-xVxSe
• Feedback of non-local $d_{xy}$ nematicity on the magnetic anisotropy in FeSe
• Superconducting dome and microstructure properties of Rb0.8Fe1.6+xSe2 superconductors
• Symmetry-breaking-induced topology in FeSe
• Normal state magnetotransport properties of $\beta$-FeSe superconductors
• Magnetotransport studies of FeSe under hydrostatic pressure
• On the bad metallicity and phase diagrams of Fe${}_{1+\delta }X$ ($X$ =Te, Se, S, solid solutions): an electrical resistivity study
• Zero resistance from one atmosphere to the pressure of earth's outer core in a superconducting high entropy alloy
• Optical Properties of Iron-Selenide Na${}_{0.27}$K${}_{0.27}$Rb${}_{0.27}$Fe${}_{1.7}$Se${}_2$ Single Crystals
• Spin-nematic order induced superconductivity
• Depairing critical current density and the vortex-free state in FeSe nanobridges
• Decoupled nematic and magnetic criticality in FeSe${}_{1-x}$S${}_x$
• Fe-vacancy ordered Fe4Se5: The insulating parent phase of FeSe superconductor
• Synthesis and characterizations of arsenic doped FeSe bulks