Dependence of the absolute value of the penetration depth in $\mathrm{\mathbf{{(Ba_{1-x}K_x)Fe_2As_2}}}$ on doping

Avior Almoalem; Alon Yagil; Kyuil Cho; Serafim Teknowijoyo; Makariy A. Tanatar; Ruslan Prozorov; Yong Liu; Thomas A. Lograsso; Ophir M. Auslaender

doi:10.1103/PhysRevB.98.054516

paper

Dependence of the absolute value of the penetration depth in $(B a_{1 - x} K_{x}) F e_{2} A s_{2}$ on doping

arXiv:1708.00683 · doi:10.1103/PhysRevB.98.054516

Abstract

We report magnetic force microscopy (MFM) measurements on the iron-based superconductor $B a_{1 - x} K_{x} F e_{2} A s_{2}$ . By measuring locally the Meissner repulsion with the magnetic MFM tip, we determine the absolute value of the in-plane magnetic penetration depth ( $λ_{ab}$ ) in underdoped, optimally-doped, and overdoped samples. The results suggest an abrupt increase of $λ_{ab}$ as doping is increased from $x_{opt}$ , which is potentially related to the presence of a quantum critical point. The response of superconducting vortices to magnetic forces exerted by the MFM tip for $x = 0.19$ and $0.58$ is compatible with previously observed structural symmetries at those doping levels.

arXiv commentReplaced Fig. 5 and 6, minor changes to the rest of the text

References in corpus (52)

Superconductivity at 38 K in the iron arsenide (Ba1-xKx)Fe2As2
Superconductivity at 22 K in Co-doped BaFe2As2 Crystals
Nematic and meta-nematic transitions in the iron pnictides
Anomalous suppression of the orthorhombic distortion in superconducting Ba[Fe(1-x)Cox]2As2
Magnetic Penetration Depth in Unconventional Superconductors
Quantum critical point lying beneath the superconducting dome in iron-pnictides
A Sharp Peak of the Zero-Temperature Penetration Depth at Optimal Composition in BaFe2(As1-xPx)2
Competition and coexistence of antiferromagnetism and superconductivity in underdoped Ba(Fe0.953Co0.047)2As2
Electronic phase separation in the slightly underdoped iron pnictide superconductor Ba(1-x)K(x)Fe(2)As(2)
Mechanics of Individual, Isolated Vortices in a Cuprate Superconductor
Superconductivity-induced reentrance of orthorhombic distortion in Ba1-xKxFe2As2
Fully Gapped Superconducting State Based on a High Normal State Quasiparticle Density of States in Ba $_{0.6}$ K $_{0.4}$ Fe $_{2}$ As $_{2}$ Single Crystals
Low temperature specific heat of the hole-doped Ba_{0.6}K_{0.4}Fe_2As_2 single crystals and electron-doped SmFeAsO_{0.9}F_{0.1} samples
Superfluid density and specific heat within self-consistent scheme for two-band superconductor
Superconductivity coexisting with phase-separated static magnetic order in (Ba,K)Fe $_{2}$ As $_{2}$ , (Sr,Na)Fe $_{2}$ As $_{2}$ and CaFe $_{2}$ As $_{2}$
Two-gap superconductivity in Ba_1-xK_xFe_2As_2: A complementary study of the magnetic penetration depth by \muSR and ARPES
Microscopic co-existence of superconductivity and magnetism in Ba1-xKxFe2As2
Controlled Manipulation of Individual Vortices in a Superconductor
Behavior of vortices near twin boundaries in underdoped $B a (F e_{1 - x} C o_{x})_{2} A s_{2}$
Local measurement of the penetration depth in the pnictide superconductor Ba(Fe $_{0.95}$ Co $_{0.05}$ ) $_{2}$ As $_{2}$
Magnetoelastic Coupling in the Phase Diagram of Ba1-xKxFe2As2
Possible nodal superconducting gap emerging at the Lifshitz transition in heavily hole-doped Ba0.1K0.9Fe2As2
Doping evolution of the absolute value of the London penetration depth and superfluid density in single crystals of Ba(Fe $_{1 - x}$ Co $_{x}$ ) $_{2}$ As $_{2}$
Local measurement of the superfluid density in the pnictide superconductor Ba(Fe $_{1 - x}$ Co $_{x}$ ) $_{2}$ As $_{2}$ across the superconducting dome
Superconductivity near a quantum-critical point: The special role of the first Matsubara frequency
Non-exponential London penetration depth in Ba $_{1 -}$ K $_{x}$ Fe $_{2}$ As $_{2}$ single crystals
Different response of the crystal structure to isoelectronic doping in BaFe2[As(1-x)P(x)]2 and [Ba(1-x)Sr(x)]Fe2As2
Strong Correlations, Strong Coupling and s-wave Superconductivity in Hole-doped BaFe2As2 Single Crystals
Energy Gap Evolution Across the Superconductivity Dome in Single Crystals of (Ba $_{1 - x}$ K $_{x}$ )Fe $_{2}$ As $_{2}$
Abrupt change in the energy gap of superconducting Ba1-xKxFe2As2 single crystals with hole doping
London penetration depth and strong pair-breaking in iron-based superconductors
Structural and magnetic phase transitions near optimal superconductivity in BaFe $_{2}$ (As $_{1 - x}$ P $_{x}$ ) $_{2}$
Evidence of a spin resonance mode in the iron-based superconductor Ba $_{0.6}$ K $_{0.4}$ Fe $_{2}$ As $_{2}$ from scanning tunneling spectroscopy
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 $_{2}$ ( $0.22 \leq x \leq 1$ )
Enhancement of the London penetration depth in pnictides at the onset of SDW order under superconducting dome
Singularity of the London penetration depth at quantum critical points in superconductors
Thermodynamic phase diagram and phase competition in BaFe2(As1-xPx)2 studied by thermal expansion
How many quantum phase transitions exist inside the superconducting dome of the iron pnictides?
Effects of electron irradiation on resistivity and London penetration depth of Ba $_{1 - x}$ K $_{x}$ Fe $_{2}$ As $_{2}$ ( $x \leq$ 0.34) iron - pnictide superconductor
Local characterization of superconductivity in BaFe2(As1-xPx)2
Doping Dependence of Hall Coefficient and Evolution of Coherent Electronic State in the Normal State of Fe-based Superconductor Ba $_{1 - x}$ K $_{x}$ Fe $_{2}$ As $_{2}$
Infrared study of the spin reorientation transition and its reversal in the superconducting state in underdoped Ba $_{1 - x}$ K $_{x}$ Fe $_{2}$ As $_{2}$
Effect of magnetic criticality and Fermi-surface topology on the magnetic penetration depth
Vortex images on Ba{1-x}KxFe2As2 observed directly by the magnetic force microscopy
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 $_{x}$ ) $_{2}$
Phase transition beneath the superconducting dome in BaFe $_{2}$ (As $_{1 - x}$ P $_{x}$ ) $_{2}$
Doping evolution of the superconducting gap structure in the underdoped iron arsenide Ba1-xKxFe2As2 revealed by thermal conductivity
Muon spin rotation and infrared spectroscopy study of magnetism and superconductivity in Ba $_{1 - x}$ K $_{x}$ Fe $_{2}$ As $_{2}$
Single Vortex Pinning and Penetration Depth in Superconducting NdFeAsO $_{1 - x}$ F $_{x}$
Disorder induced power-law response of a superconducting vortex on a plane
Diamagnetic Vortex Barrier Stripes in Underdoped $B a F e_{2} (A s_{1 - x} P_{x})_{2}$

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Dependence of the absolute value of the penetration depth in (Ba1−x​Kx​)Fe2​As2​ on doping

Abstract

References in corpus (52)

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Dependence of the absolute value of the penetration depth in $(B a_{1 - x} K_{x}) F e_{2} A s_{2}$ on doping