Pressure-induced magnetism in iron-based superconductors $A$Fe${}_2$As${}_2$ ($A=$ K, Cs, Rb)

Abstract

The magnetic properties of iron-based superconductors $A$Fe${}_2$As${}_2$ ($A=$K, Cs, and Rb), which are characterized by the V-shaped dependence of the critical temperature ($T_{\mathrm{c}}$) on pressure ($P$) were studied by means of the muon spin rotation/relaxation technique. In all three systems studied the magnetism was found to appear for pressures slightly below the critical one ($P_{\mathrm{c}}$), i.e. at pressure where $T_{\mathrm{c}}(P)$ changes the slope. Rather than competing, magnetism and superconductivity in $A$Fe${}_2$As${}_2$ are coexisting at $P\gtrsim P_{\mathrm{c}}$ pressure region. Our results support the scenario of a transition from one pairing state to another, with different symmetries on either side of $P_{\mathrm{c}}$.

arXiv comment7 pages, 3 figures

References in corpus (48)

• The Puzzle of High Temperature Superconductivity in Layered Iron Pnictides and Chalcogenides
• Gap symmetry and structure of Fe-based superconductors
• Near-degeneracy of several pairing channels in multiorbital models for the Fe-pnictides
• musrfit: A free platform-independent framework for muSR data analysis
• Anomalous suppression of the orthorhombic distortion in superconducting Ba[Fe(1-x)Cox]2As2
• Quantum Criticality: competing ground states in low dimensions
• Superconductivity and Crystal Structures of (Ba1-xKx)Fe2As2 (x = 0 - 1)
• Lattice and magnetic instabilities in CaFe2As2: A single crystal neutron diffraction study
• Pressure Induced Static Magnetic Order in Superconducting FeSe_1-x
• Static and Dynamic Magnetism in Underdoped Superconductor BaFe${}_{1.92}$Co${}_{0.08}$As${}_2$
• Coexistence of Superconductivity and Magnetism in FeSe_1-x under Pressure
• Strong cooperative coupling of pressure-induced magnetic order and nematicity in FeSe
• Change of pairing symmetry in the iron-based superconductor KFe2As2
• Momentum-resolved superconducting gap in the bulk of Ba${}_{1-x}$K${}_x$Fe${}_2$As${}_2$ from combined ARPES and $\mu$SR measurements
• Incommensurate spin-density wave order in electron-doped BaFe2As2 superconductors
• Evolution of two-gap behavior of the superconductor FeSe_1-x
• Muon-spin rotation studies of SmFeAsO_0.85 and NdFeAsO_0.85 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
• High pressure research using muons at the Paul Scherrer Institute
• Magnetoelastic Coupling in the Phase Diagram of Ba1-xKxFe2As2
• Coexistence and competition of magnetism and superconductivity on the nanometer scale in underdoped BaFe1.89Co0.11As2
• Magnetic ordering and structural distortion in Ru doped BaFe2As2 single crystals studied by Neutron and X-ray diffraction
• Suppression of superconductivity by Neel-type magnetic fluctuations in the iron pnictides
• Microscopic coexistence of antiferromagnetic order and superconductivity in Ba${}_{0.77}$K${}_{0.23}$Fe${}_2$As${}_2$
• Muon spin rotation study of magnetism and superconductivity in Ba(Fe1-xCox)2As2 single crystals
• Direct evidence for the emergence of a pressure induced nodal superconducting gap in the iron-based superconductor Ba_0.65Rb_0.35Fe_2As_2
• Upper critical field of KFe2As2 under pressure: A test for the change in the superconducting gap structure
• Universal V-shaped temperature-pressure phase diagram in the iron-based superconductors KFe2As2, RbFe2As2, and CsFe2As2
• Suppression of antiferromagnetic order and orthorhombic distortion in superconducting Ba(Fe0.961Rh0.039)2As2
• Superconductivity and Field-Induced Magnetism in SrFe_1.75Co_0.25As_2
• Doping-Enhanced Antiferromagnetism in Ca1-xLaxFeAs2
• Sudden reversal in the pressure dependence of Tc in the iron-based superconductor CsFe2As2: A possible link between inelastic scattering and pairing symmetry
• Bulk Superconductivity at 2.6 K in Undoped RbFe_2As_2
• Coexistence of low moment magnetism and superconductivity in tetragonal FeS and suppression of $T_{\mathrm{c}}$ under pressure
• A low-background piston-cylinder type hybrid high pressure cell for muon-spin rotation/relaxation experiments
• Antiferromagnetic order in CaK(Fe[1-x]Ni[x])4As4 and its interplay with superconductivity
• Microscopic Study of the Superconducting State of the Iron Pnictide RbFe_2As_2
• Two distinct superconducting states in KFe${}_2$As${}_2$ under high pressure
• Distinct pressure evolution of coupled nematic and magnetic order in FeSe
• Coexistence of superconductivity and magnetism in CaK(Fe${}_{1-x}$Ni${}_x$)${}_4$As${}_4$ as probed by ${}^{57}$Fe Mössbauer spectroscopy
• NMR Study of the New Magnetic Superconductor CaK(Fe$0.951Ni0.049)4As4: Microscopic Coexistence of Hedgehog Spin-vortex Crystal and Superconductivity
• Superfluid density and superconducting gaps of RbFe_{2}As_{2} as a function of hydrostatic pressure
• Extended Magnetic Dome Induced by Low Pressures in Superconducting FeSe${}_{1\text{-}\mathrm{x}}$S${}_{\mathrm{x}}$
• Pressure dependence of coherence-incoherence crossover behavior in KFe2As2 observed by resistivity and 75As-NMR/NQR
• Superconducting properties of K${}_{1-x}$Na${}_x$Fe${}_2$As${}_2$ under pressure
• Muon spin rotation and infrared spectroscopy study of $B{a}_{1-x}N{a}_{x}F{e}_{2}A{s}_2$
• Magnetism and its coexistence with superconductivity in CaK(Fe${}_{0.949}$Ni${}_{0.051}$)${}_4$As${}_4$: muon spin rotation/relaxation studies

Cited by in corpus (2)

• Perspective on the muon-spin rotation/relaxation under hydrostatic pressure
• Suppressed fluctuations as the origin of the static magnetic order in strained Sr${}_2$RuO${}_4$