Novel magnetic stoichiometric superconductor EuRbFe4As4

Abstract

In the novel stoichiometric iron-based material RbEuFe4As4 superconductivity coexists with a peculiar long-range magnetic order of Eu 4f states; their coexistance is puzzling and represents a challenge for both experiment and theory. Using angle-resolved photoemission spectroscopy, resonant photoemission spectroscopy, Andreev reflection spectroscopy and scanning tunneling spectroscopy we have addressed this puzzle and unambigously shown that Fe- and Eu-derived states are largely decoupled and that superconducting and a long range magnetic orders exist almost independently from each other.

7 pages, 8 figures, To appear in: Phys.Usp

References in corpus (12)

• High-temperature superconductivity in iron-based materials
• Observation of Fermi-surface-dependent nodeless superconducting gaps in Ba0.6K0.4Fe2As2
• Superconductivity induced by phosphorus doping and its coexistence with ferromagnetism in EuFe${}_2$(As${}_{0.7}$P${}_{0.3}$)${}_2$
• Momentum dependence of the superconducting gap in Ba${}_{1-x}$K${}_x$Fe${}_2$As${}_2$
• Coexisting spin resonance and long-range magnetic order of Eu in EuRbFe${}_4$As${}_4$
• Theory of the magnetic domains phases in ferromagnetic superconductors
• Superconductivity driven helical magnetic structure in EuRbFe${}_4$As${}_4$ ferromagnetic superconductor
• Electronic Band Structure and Superconducting Properties of SnAs
• Helical structures in layered magnetic superconductors due to indirect exchange interactions mediated by interlayer tunneling
• Self-induced Magnetic Flux Structure in the Magnetic Superconductor RbEuFe${}_4$As${}_4$
• Suppression of superconducting parameters by correlated quasi-two-dimensional magnetic fluctuations
• Direct Evidence of Two Superconducting Gaps in FeSe${}_{0.5}$Te${}_{0.5}$: SnS-Andreev Spectroscopy and Lower Critical Field

Cited by in corpus (2)

• Electromagnetic Proximity Effect: Superconducting Magnonics and Beyond
• Antiferromagnetic resonances in twinned EuFe2As2 single crystal