Superconducting (Li, Fe)OHFeSe film of high quality and high critical parameters

Abstract

The superconducting film of (Li1-xFex)OHFeSe is reported for the first time. The thin film exhibits a small in-plane crystal mosaic of 0.22 deg, in terms of the FWHM (full-width-at-half-maximum) of x-ray rocking curve, and an excellent out-of-plane orientation by x-ray phi-scan. Its bulk superconducting transition temperature (Tc) of 42.4 K is characterized by both zero electrical resistance and diamagnetization measurements. The upper critical field (Hc2) is estimated to be 79.5 T and 443 T, respectively, for the magnetic field perpendicular and parallel to the ab plane. Moreover, a large critical current density (Jc) of a value over 0.5 MA/cm2 is achieved at ~20 K. Such a (Li1-xFex)OHFeSe film is therefore not only important to the fundamental research for understanding the high-Tc mechanism, but also promising in the field of high-Tc superconductivity application, especially in high-performance electronic devices and large scientific facilities such as superconducting accelerator.

arXiv comment9 pages, 4 figures

References in corpus (18)

• The Puzzle of High Temperature Superconductivity in Layered Iron Pnictides and Chalcogenides
• High-temperature superconductivity in iron-based materials
• Phase Diagram and High Temperature Superconductivity at 65 K in Tuning Carrier Concentration of Single-Layer FeSe Films
• Interfacial mode coupling as the origin of the enhancement of Tc in FeSe films on SrTiO3
• Interface-induced superconductivity and strain-dependent spin density wave in FeSe/SrTiO3 thin films
• Structure determination and coexistence of superconductivity and antiferromagnetic order in (Li0.8Fe0.2)OHFeSe
• Exploration of new superconductors and functional materials and fabrication of superconducting tapes and wires of iron pnictides
• New Fe-based superconductors: properties relevant for applications
• (Li0.84Fe0.16)OHFe0.98Se superconductor: Ion-exchange synthesis of large single crystal and highly two-dimensional electron properties
• To use or not to use cool superconductors?
• Electric field-induced superconducting transition of insulating FeSe thin film at 35 K
• Phase diagram of (Li1-xFex)OHFeSe: a bridge between iron selenide and arsenide superconductors
• Artificially engineered superlattices of pnictide superconductor
• Universal Lower Limit on Vortex Creep in Superconductors
• Revealing the Empty-State Electronic Structure of Single-Unit-Cell FeSe/SrTiO${}_3$
• Thin Film Growth and Device Fabrication of Iron-Based Superconductors
• Oxypnictide SmFeAs(O,F) superconductor: a candidate for high-field magnet applications
• Intrinsic and extrinsic pinning in NdFeAs(O,F): vortex trapping and lock-in by the layered structure

Cited by in corpus (12)

• Robust and clean Majorana zero mode in the vortex core of high-temperature superconductor (Li0.84Fe0.16)OHFeSe
• p-Wave Superconductivity in Iron-based Superconductors
• Superconductivity at 40 K in lithiation-processed [(Fe,Al)(OH)2][FeSe]1.2 with a layered structure
• Raman Study of Cooper Pairing Instabilities in (Li${}_{1-x}$Fe${}_x$)OHFeSe
• Charge order driven by multiple-Q spin fluctuations in heavily electron-doped iron selenide superconductors
• Quasi two-dimensional nature of high-Tc superconductivity in iron-based (Li,Fe)OHFeSe
• Revealing the Microscopic Mechanism of Elementary Vortex Pinning in Superconductors
• Phase shift and magnetic anisotropy induced field splitting of impurity states in (Li1-xFex)OHFeSe superconductor
• Dispersionless orbital excitations in (Li,Fe)OHFeSe superconductors
• A disorder-sensitive emergent vortex phase identified in high-Tc superconductor (Li,Fe)OHFeSe
• Unusual normal and superconducting state properties observed in hydrothermal Fe1-xSe flakes
• Extracting intrinsic superconducting properties in intercalated layered superconductors using an extended 2D Tinkham model