Superconductivity at 32 K in single crystal Rb${}_{0.78}$Fe${}_2$Se${}_{1.78}$}

Abstract

We successfully grew the high-quality single crystal of Rb${}_{0.78}$Fe${}_2$Se${}_{1.78}$, which shows sharp superconducting transition in magnetic susceptibility and electrical resistivity. Resistivity measurements show the onset superconducting transition ($T_{\mathrm{c}}$) at 32.1 K and zero resistivity at 30 K. From the low-temperature iso-magnetic-field magnetoresistance, large upper critical field $H_{c2}$(0) has been estimated as high as 180 T for in-plane field and 59 T for out-of-plane field. The anisotropy $H_{c2}^{ab}$(0)/$H_{c2}^c$(0) is around 3.0, right lying between those observed in K${}_x$Fe${}_2$Se${}_2$ and Cs${}_x$Fe${}_2$Se${}_2$.

arXiv comment5 pages, 5 figs

References in corpus (16)

• 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 $SmFeAs{O}_{1-x}{F}_x$
• Superconductivity at 36 K in beta-Fe1.01Se with the compression of the interlayer separation under pressure
• The superconductivity at 18 K in LiFeAs system
• LiFeAs: An Intrinsic FeAs-based Superconductor with Tc = 18K
• Nearly Isotropic superconductivity in (Ba,K)Fe2As2
• Anion height dependence of Tc for the Fe-based superconductor
• Anisotropic thermodynamic and transport properties of single crystalline (Ba${}_{1-x}$K${}_x$)Fe${}_2$As${}_2$ (x = 0 and 0.45)
• Coexistence of the spin-density-wave and superconductivity in the (Ba,K)Fe2As2
• Synthesis and crystal growth of Cs0.8(FeSe0.98)2: a new iron-based superconductor with Tc=27K
• Determination of anisotropic Hc2 up to 60 T in (Ba0.55K0.45)Fe2As2 single crystals
• Critical Fields and Anisotropy of NdO0.82F0.18FeAs Single Crystals
• Upper critical field, anisotropy, and superconducting properties of Ba${}_{1-x}$K${}_x$Fe${}_2$As${}_2$ single crystals
• Transport properties of the new Fe-based superconductor KxFe2Se2 (Tc = 33 K)
• Superconducting and normal phases of FeSe single crystals at high pressure

Cited by in corpus (165)

• Structure determination and coexistence of superconductivity and antiferromagnetic order in (Li0.8Fe0.2)OHFeSe
• A Novel Large Moment Antiferromagnetic Order in K0.8Fe1.6Se2 Superconductor
• Reemerging superconductivity at 48 K across quantum criticality in iron chalcogenides
• Observation of superconductivity at 30 K~46 K in AxFe2Se2 (A = Li, Na, Ba, Sr, Ca, Yb, and Eu)
• The Unexpected Properties of Alkali Metal Iron Selenide Superconductors
• Exploration of new superconductors and functional materials and fabrication of superconducting tapes and wires of iron pnictides
• Phase Separation and Magnetic Order in K-doped Iron Selenide Superconductor
• Evolution of high-temperature superconductivity from low-Tc phase tuned by carrier concentration in FeSe thin flakes
• Nanoscale phase separation in the iron chalcogenide superconductor K0.8Fe1.6Se2 as seen via scanning nanofocused x-ray diffraction
• Microstructure and Fe-vacancy ordering in the KFexSe2 superconducting system
• Common Crystalline and Magnetic Structure of superconducting A2Fe4Se5
• Iron based high transition temperature superconductors
• Superconducting Phases in Potassium-Intercalated Iron Selenides
• Intrinsic phase separation in superconducting K0.8Fe1.6Se2 (Tc= 31.8 K) single crystals
• Electronic and magnetic phase diagram in K${}_x$Fe${}_{2-y}$Se${}_2$ superconductors
• Coexistence of superconductivity and antiferromagnetism in single crystals $A_{0.8}F{e}_{2-y}S{e}_2$ (A= K, Rb, Cs, Tl/K and Tl/Rb): evidence from magnetization and resistivity
• Interplay between magnetism and superconductivity in iron-chalcogenide superconductors: crystal growth and characterizations
• KFe_2Se_2 is the parent compound of K-doped iron selenide superconductors
• Magnetic Resonant Mode in the Low-Energy Spin-Excitation Spectrum of Superconducting Rb2Fe4Se5 Single Crystals
• Superconductivity and Magnetic Properties of high-quality single crystals of $A_x$Fe${}_2$Se${}_2$ ($A$ = K and Cs)
• Tuning phase transitions of FeSe thin flakes by field effect transistor with solid ion conductor as gate dielectric
• Superconductivity in LiFeO2Fe2Se2 with anti-PbO-type Spacer Layers
• Physics and chemistry review of layered chalcogenide superconductors
• Iron vacancy superstructure and possible room temperature antiferromagnetic order in superconducting Cs_{y}Fe_{2-x}Se_2
• Structure, magnetic order and excitations in the 245 family of Fe-based superconductors
• Spin Waves and magnetic exchange interactions in insulating Rb${}_{0.89}$Fe${}_{1.58}$Se${}_2$
• Spin fluctuations in iron pnictides and chalcogenides: From antiferromagnetism to superconductivity
• Superconductivity and phase instability of NH3-free Na-intercalated FeSe1-zSz
• Fe-vacancy order and superconductivity in PbO-type tetragonal β-Fe1-xSe
• Superconductivity in the iron selenide KxFe2Se2 (0 <= x <= 1)
• New ternary ThCr2Si2-type iron-selenide superconducting materials: synthesis, properties and simulations
• Reciprocal-space structure and dispersion of the magnetic resonant mode in the superconducting phase of Rb(x)Fe(2-y)Se2 single crystals
• Nanoscale layering of antiferromagnetic and superconducting phases in Rb2Fe4Se5
• High-temperature superconductivity in one-unit-cell FeSe films
• Preformed Cooper pairs in layered FeSe-based superconductors
• The intercalation chemistry of layered iron chalcogenide superconductors
• Superconductivity in Potassium-intercalated Td-WTe2
• Superconducting Properties of the $s^{\pm }$-wave state: Fe-based superconductors
• Evolution of precipitate morphology during heat treatment and its implications for the superconductivity in KxFe1.6+ySe2 single crystals
• New intercalation superconductor Lix(C6H16N2)yFe2-zSe2 with a very large interlayer-spacing and Tc = 38 K
• Superconducting properties of single-crystalline A_{x}Fe_{2-y}Se_{2} (A=Rb, K) studied using muon spin spectroscopy
• 77Se NMR study of pairing symmetry and spin dynamics in KyFe2-xSe2
• Electronic and magnetic structures of ternary iron selenides AFe${}_2$Se${}_2$ (A=K, Cs, or Tl)
• Interplay between lattice and spin states degree of freedom in the FeSe superconductor: dynamic spin state instabilities
• Anisotropic magnetism, superconductivity, and the phase diagram of Rb(1-x)Fe(2-y)Se2
• Antiferromagnetic order and superlattice structure in nonsuperconducting and superconducting RbyFe(1.6+x)Se2
• Surface electronic structure and evidence of plain s-wave superconductivity in (Li0.8Fe0.2)OHFeSe
• Universal behavior of the upper critical field in iron based superconductors
• Spin glass behavior of insulating K0.8Fe2-xS2
• Superconductivity across Lifshitz transition and anomalous insulating state in surface K-dosed (Li0.8Fe0.2OH)FeSe
• Imaging the coexistence of superconductivity and a charge density modulation in K0.73Fe1.67Se2 superconductor
• Dumbbell Defects in FeSe Films: A Scanning Tunneling Microscopy and First-Principles Investigation
• Synthesis, crystal and magnetic structure of iron selenide BaFe2Se3 with possible superconductivity at Tc=11K
• Synthesis and properties of La-doped CaFe2As2 single crystals with Tc = 42.7 K
• Anisotropy in transport and magnetic properties of K0.64Fe1.44Se2
• Conformity of spin fluctuations in alkali-metal iron selenide superconductors inferred from the observation of a magnetic resonant mode in K(x)Fe(2-y)Se(2)
• Crystal structure, physical properties and superconductivity in $A_x$Fe${}_2$Se${}_2$ single crystals
• Three-dimensionality and orbital characters of Fermi surface in (Tl,Rb)${}_y$Fe${}_{2-x}$Se${}_2$
• New Superconducting Phase of Li${}_x$(C${}_6$H${}_{16}$N${}_2$)${}_y$Fe${}_{2-z}$Se${}_2$ with $T_{\text{c}}$ = 41 K Obtained through the Post-Annealing
• Optical conductivity of iron-based superconductors
• Room temperature antiferromagnetic order in superconducting X_yFe_{2-x}Se_ 2, (X= Rb, K): a powder neutron diffraction study
• Phase transition, superstructure and physical properties of K2Fe4Se5
• Coexistence of low moment magnetism and superconductivity in tetragonal FeS and suppression of $T_{\mathrm{c}}$ under pressure
• Optical conductivity of superconducting Rb2Fe4Se5
• Upper critical field and thermally activated flux flow in single crystalline Tl${}_{0.58}$Rb${}_{0.42}$Fe${}_{1.72}$Se${}_2$
• Metamagnetic transition in Ca${}_{1-x}$Sr${}_x$Co${}_2$As${}_2$($x$ = 0 and 0.1) single crystals
• The preparation and phase diagrams of (${}^7$Li${}_{1-x}$Fe${}_x$OD)FeSe and (Li${}_{1-x}$Fe${}_x$OH)FeSe superconductors
• Vacancy ordering and phonon spectrum in the Fe superconductor K${}_{0.8}$Fe${}_{1.6}$Se${}_2$
• Low-temperature Synthesis of FeTe0.5Se0.5 Polycrystals with a High Transport Critical Current Density
• Structure and composition of the superconducting phase in alkali iron selenide K${}_y$Fe${}_{1.6+x}$Se${}_2$
• Intrinsic crystal phase separation in antiferromagnetic superconductor RbyFe2-xSe2: a diffraction study
• Proximity induced superconductivity within the insulating (Li${}_{0.84}$Fe${}_{0.16}$)OH layers in (Li${}_{0.84}$Fe${}_{0.16}$)OHFe${}_{0.98}$Se
• Spin-wave excitations and superconducting resonant mode in Cs(x)Fe(2-y)Se2
• Spin reorientation in TlFe1.6Se2 with complete vacancy ordering
• Superconducting properties of FeSe wires and tapes prepared by gas diffusion technique
• Superconductivity in Li-intercalated 1T-SnSe2 driven by electric-field gating
• One-step synthesis of KxFe2-ySe2 single crystals for high critical current density
• Growth, Characterization, Vortex Pinning and Vortex Flow Properties of Single Crystals of Iron Chalcogenide Superconductor FeCr${}_{0.02}$Se
• Interplay between Superconductivity and Magnetism in Rb0.8Fe1.6Se2 under Pressure
• Two-magnon Raman scattering in A${}_{0.8}$Fe${}_{1.6}$Se${}_2$ systems: competition between superconductivity and antiferromagnetic order
• Thermoelectric studies of KxFe2-ySe2: weakly correlated superconductor
• Spin resonance in the superconducting state of Li${}_{1-x}$Fe${}_x$ODFe${}_{1-y}$Se observed by neutron spectroscopy
• Understanding doping, vacancy, lattice stability and superconductivity in KxFe2-ySe2
• New Alkali-Metal- and 2-Phenethylamine-Intercalated Superconductors $A_x$(C${}_8$H${}_{11}$N)${}_y$Fe${}_{1-z}$Se ($A$ = Li, Na) with the Largest Interlayer Spacings and $T_{\mathrm{c}}$ $\sim$ 40 K
• Superconductivity and Phase Diagram in (Li${}_{0.8}$Fe${}_{0.2}$)OHFeSe${}_{1-x}$S${}_x$
• Uniform Patterns of Fe Vacancy Ordering in the Kx(Fe,Co)2-ySe2 Superconductors
• Pairing Mechanism of the Heavily Electron Doped FeSe Systems: Dynamical Tuning of the Pairing Cutoff Energy
• Unusual Phase Transitions and Magnetoelastic Coupling in TlFe1.6Se2 Single Crystals
• Temperature and pressure evolution of the crystal structure of Ax(Fe1-ySe)2 (A = Cs, Rb, K) studied by synchrotron powder diffraction
• Spin fluctuations away from (pi,0) in the superconducting phase of molecular-intercalated FeSe
• Magnetic phase separation and superfluid density measurements in alkali metal-organic solvent intercalated iron selenide superconductor Lix(C5H5N)yFe2-zSe2
• Local spin fluctuations in iron-based superconductors: 77Se and 87Rb NMR measurements of Tl0.47Rb0.34Fe1.63Se2
• (PI,0) antiferromagnetic spin excitations in superconducting Rb0.82Fe1.68Se2
• Two spatially separated phases in semiconducting Rb${}_{0.8}$Fe${}_{1.5}$S${}_2$
• Canted Antiferromagnetism in the Quasi-1D Iron Chalcogenide BaFe${}_2$Se${}_4$
• Robust superconductivity and transport properties in (Li1-xFex)OHFeSe single crystals
• Pressure cycle of superconducting Cs0.8Fe2Se2: a transport study
• Electrochemical deposition of FeSe on RABiTS tapes
• Evolution of correlation strength in KxFe(2-y)Se2 superconductor doped with S
• Effect of iron content and potassium substitution in A${}_{0.8}$Fe${}_{1.6}$Se${}_2$ (A = K, Rb, Tl) superconductors: a Raman-scattering investigation
• Superconductivity and normal state properties of single-crystalline Tl0.47Rb0.34Fe1.63Se2 as seen via 77Se and 87Rb NMR
• Physical properties of $A_x$Fe${}_{2-y}$S${}_2$ ($A$=K, Rb and Cs) single crystals
• Phonon Boost Effect on the $S^{\pm }$-wave Superconductor with Incipient Band
• Vacancy Driven Orbital and Magnetic Order in (K,Tl,Cs)${}_y$Fe${}_{2-x}$Se${}_2$
• KxFe2-ySe2 single crystals: Floating-zone growth, Transport and Structural properties
• Superconductivity at 44.4 K achieved by intercalating EMIM+ into FeSe
• Spin resonance in AFe2Se2 with s-wave pairing symmetry
• Intercalation effect on hyperfine parameters of Fe in FeSe superconductor with Tc = 42 K
• Complex biphase nature of the superconducting dome of the FeSe phase diagram
• Coexistence of superconductivity and magnetism in K0.8Fe2Se1.4S0.4
• Realization of continuously electron doping in bulk iron selenides and identification of a new superconducting zone
• Neutron Scattering Study on Spin Dynamics in Superconducting (Tl,Rb)2Fe4Se5
• SDW transition of Fe1 zigzag chains and metamagnetic transition of Fe2 in TaFe${}_{1+y}$Te${}_3$
• Origin of the Higher-$T_\rm{c}$ Phase in the K${}_x$Fe${}_{2-y}$Se${}_2$ System
• Mott localization in a pure stripe antiferromagnet Rb${}_{1-\delta }$Fe${}_{1.5-\sigma }$S${}_2$
• Coexistence of magnetism and superconductivity in separate layers of the iron-based superconductor Li_{1-x}Fe_{x}(OH)Fe_{1-y}Se
• High-pressure study of superconducting and non-superconducting single crystals of the same nominal composition Rb0.8Fe2Se2
• Brief review on iron-based superconductors: are there clues for unconventional superconductivity?
• Evolution of superconductivity in isovalent Te-substituted KxFe2-ySe2 crystals
• Elastic properties and inter-atomic bonding in new superconductor KFe2Se2 from first principles calculations
• Structural phase transition below 250 K in superconducting K${}_{0.75}$Fe${}_{1.75}$Se${}_2$
• Compressibility and pressure-induced disorder in superconducting phase-separated Cs0.72Fe1.57Se2
• Probing the superconducting gap structure of (Li${}_{1-x}$Fe${}_x$)OHFeSe
• Evolution of the nuclear and magnetic structures of TlFe1.6Se2 with temperature
• Electronic structure and nematic phase transition in superconducting multi-layer FeSe films grown by pulsed laser deposition method
• Exploration of iron-chalcogenide superconductors
• Upper critical fields and superconducting anisotropy of K0.70Fe1.55Se1.01S0.99 and K0.76Fe1.61Se0.96S1.04 single crystals
• Elucidating the magnetic and superconducting phases in the alkali metal intercalated iron chalcogenides
• Possible spin excitation structure in monolayer FeSe grown on SrTiO${}_3$
• Magnetic neutron scattering studies on the Fe-based superconductor system Fe${}_{1+y}$Te${}_{1-x}$Se${}_x$
• Two-dimensional Cs-vacancy superstructure in iron-based superconductor $C{s}_{0.8}F{e}_{1.6}S{e}_2$
• Pressure study of the new iron-based superconductor K0.8Fe2Se2
• Insulating and metallic spin glass in K${}_x$Fe${}_{2-\delta -y}$Ni${}_y$Se${}_2$ (0.06 $\le$ $y$ $\le$ 1.44) single crystals
• Possible pairing symmetry in the FeSe-based superconductors determined by quasiparticle interference
• Spin excitations in K${}_{0.84}$Fe${}_{1.99}$Se${}_2$ superconductor as studied by Mössbauer spectroscopy
• Intrinsic high-temperature superconductivity in ternary iron selenides
• Direct Observation of Microstructures on Superconducting Single Crystals of K${}_x$Fe${}_{2-y}$Se${}_2$
• Spin glass in semiconducting KFe${}_{1.05}$Ag${}_{0.88}$Te${}_2$ single crystals
• Electron-phonon coupling in the superconducting single crystal Rb${}_{0.8}$Fe${}_{1.68}$Se${}_2$
• Effective tight-binding model for the iron vacancy ordered A${}_y$FeSe${}_2$
• Structure, superconductivity, and magnetism in Rb1-xFe1.6Se2-zSz
• Magnetic anisotropic energy gap and low energy spin wave excitation in antiferromagnetic block phase of K2Fe4Se5
• Pressure-induced magnetic collapse and metallization of $\mathrm{TlF}{\mathrm{e}}_{1.6}\mathrm{S}{\mathrm{e}}_2$
• The phonon mechanism explanation of the superconductivity dichotomy between FeSe and FeS monolayers on STO and other substrates
• Growth of (NaxKy)FezSe2 crystals by chlorides flux at low temperatures
• Connection between ambient-pressure and pressure-induced superconducting phases in alkaline iron selenide superconductors
• Spin waves in the block checkerboard antiferromagnetic phase
• In-situ topotactic chemical reaction for spectroscopies
• A Single-Crystal Neutron Diffraction Study on Magnetic Structure of CsCo2Se2
• In-gap bound states induced by a single nonmagnetic impurity in sign-preserving s-wave superconductors with incipient bands
• Annealing Effect on Microstructure and Superconductivity of KxFeySe2 Synthesized by an Easy One-step Method
• Unconventional superconductivity induced by suppressing an iron-selenium based Mott insulator CsFe4-xSe4
• Enhanced superconductivity and moderate spin fluctuations suppressed at low energies in heavily electron-doped La1111-based superconductor
• Spin fluctuations and pairing symmetry in A${}_x$Fe${}_{2-y}$Se${}_2$: dual effect of the itinerant and the localized nature of electrons
• Quenching Dependence on Superconductivity in the Synthesizing Process of Single Crystals of Rb${}_x$Fe${}_{2-y}$Se${}_2$
• Magnetization distribution and orbital moment in the non-Superconducting Chalcogenide Compound K0.8Fe1.6Se2
• Optical Properties of Superconducting K${}_{0.8}$Fe${}_{1.7}$(Se${}_{0.73}$S${}_{0.27}$)${}_2$ Single Crystals
• Superconductivity of 30.4 K and its Reemergence under Pressure in Fe1.11Se Synthesized via Ion-exchange and De-intercalation Reaction
• Formation of single-phase disordered CsxFe2-ySe2 at high pressure
• Structural, electronic properties and Fermi surface of ThCr2Si2-type charge-balanced KFe2AsSe phase as a parent system for a new group of "mixed" pnictide-chalcogenide superconductors
• Enhancement of Superconductivity Linked with Linear-in-Temperature/Field Resistivity in Ion-Gated FeSe Films
• Optical Properties of Iron-Selenide Na${}_{0.27}$K${}_{0.27}$Rb${}_{0.27}$Fe${}_{1.7}$Se${}_2$ Single Crystals
• What controls the superconducting dome of electron-doped FeSe?
• Tetragonal-phase SnOFeSe: A possible parent compound of FeSe-based superconductor
• Superconducting dome and microstructure properties of Rb0.8Fe1.6+xSe2 superconductors