Superconductor to Mott insulator transition in YBa${}_2$Cu${}_3$O${}_7$/LaCaMnO${}_3$ heterostructures

Abstract

The superconductor-to-insulator transition (SIT) induced by means such as external magnetic fields, disorder or spatial confinement is a vivid illustration of a quantum phase transition dramatically affecting the superconducting order parameter. In pursuit of a new realization of the SIT by interfacial charge transfer, we developed extremely thin superlattices composed of high $T_c$ superconductor YBa${}_2$Cu${}_3$O${}_7$ (YBCO) and colossal magnetoresistance ferromagnet La${}_{0.67}$Ca${}_{0.33}$MnO${}_3$ (LCMO). By using linearly polarized resonant X-ray absorption spectroscopy and magnetic circular dichroism, combined with hard X-ray photoelectron spectroscopy, we derived a complete picture of the interfacial carrier doping in cuprate and manganite atomic layers, leading to the transition from superconducting to an unusual Mott insulating state emerging with the increase of LCMO layer thickness. In addition, contrary to the common perception that only transition metal ions may response to the charge transfer process, we found that charge is also actively compensated by rare-earth and alkaline-earth metal ions of the interface. Such deterministic control of $T_c$ by pure electronic doping without any hindering effects of chemical substitution is another promising route to disentangle the role of disorder on the pseudo-gap and charge density wave phases of underdoped cuprates.

arXiv commentAccepted in Scientific Reports

References in corpus (42)

• Long-range incommensurate charge fluctuations in (Y,Nd)Ba2Cu3O(6+x)
• Direct observation of competition between superconductivity and charge density wave order in YBa2Cu3Oy
• Magnetic-field-induced charge-stripe order in the high temperature superconductor YBa2Cu3Oy
• Resonant x-ray scattering studies of charge order in cuprates
• Evaluation of CuO2 plane hole doping in YBa2Cu3O6+x single crystals
• Electronic Phase Diagram of High-T_c Cuprate Superconductors from a Mapping of the In-Plane Resistivity Curvature
• Inhomogeneity of charge density wave order and quenched disorder in a high Tc superconductor
• Connection between charge-density-wave order and charge transport in the cuprate superconductors
• Giant phonon anomalies and central peak due to charge density wave formation in YBa${}_2$Cu${}_3$O${}_{6.6}$
• Emergent properties hidden in plane view: Strong electronic correlations at oxide interfaces
• The symmetry of charge order in cuprates
• Universal sheet resistance and revised phase diagram of the cuprate high-temperature superconductors
• Hybridization-controlled charge transfer and induced magnetism at correlated oxide interfaces
• Interfaces of correlated electron systems: Proposed mechanism for colossal electroresistance
• Magnetic Proximity Effect in Perovskite Superconductor/Ferromagnet Multilayers
• Charge transfer and interfacial magnetism in (LaNiO3)n/(LaMnO3)2 superlattices
• Electron Doping of Cuprates via Interfaces with Manganites
• In situ photoemission study on atomically-controlled La${}_{1-x}$Sr${}_x$MnO${}_3$ thin films: Composition dependence of the electronic structure
• Engineered Mott ground state in LaTiO${}_{3+\delta }$/LaNiO${}_3$ heterostructure
• Magnetic proximity effect in $\mathbf{YB}{\mathbf{a}}_2\mathbf{C}{\mathbf{u}}_3{\mathbf{O}}_7/L{\mathbf{a}}_{2/3}\mathbf{C}{\mathbf{a}}_{1/3}\mathbf{Mn}{\mathbf{O}}_3$ and $\mathbf{YB}{\mathbf{a}}_2\mathbf{C}{\mathbf{u}}_3{\mathbf{O}}_7/LaMn{\mathbf{O}}_{3+\delta }$ superlattices
• Suppressed magnetization in La${}_{0.7}$Ca${}_{0.3}$MnO${}_3$/YBa${}_2$Cu${}_3$O${}_{7-\delta }$ superlattices
• Measurement of x-ray absorption spectra of overdoped high-temperature cuprate superconductors: Inapplicability of the single-band Hubbard model
• Long-range charge density wave proximity effect at cuprate-manganate interfaces
• Resonant elastic soft x-ray scattering in oxygen-ordered YBa_2Cu_3O_{6+delta}
• Doping dependence of the chemical potential and surface electronic structure in YBa2Cu3O6+x and La2-xSrxCuO4 using hard x-ray photoemission spectroscopy
• High Tc superconductivity at the interface between the CaCuO2 and SrTiO3 insulating oxides
• Multiscale distribution of oxygen puddles in 1/8 doped YBa2Cu3O6.67
• Delta Doping of Ferromagnetism in Antiferromagnetic Manganite Superlattices
• Unconventional proximity effect and inverse spin-switch behavior in a model manganite-cuprate-manganite trilayer system
• YBa${}_2$Cu${}_3$O${}_7$/La${}_{0.7}$Ca${}_{0.3}$MnO${}_3$ bilayers: Interface coupling and electric transport properties
• Indirect electric field doping of the CuO2 planes of the cuprate NdBa2Cu3O7 superconductor
• Competition between covalent bonding and charge transfer at complex-oxide interfaces
• Attenuation of superconductivity in manganite/cuprate heterostructures by epitaxially-induced CuO intergrowths
• Magnetic properties and atomic structure of La(2/3)Ca(1/3)MnO(3)-YBa(2)Cu(3)O(7) heterointerfaces
• Electronic Interface Reconstruction at Polar-Nonpolar Mott Insulator Heterojunctions
• Interface hole-doping in cuprate-titanate superlattices
• Scanning tunneling spectroscopy study of c-axis proximity effect in epitaxial bilayer manganite/cuprate thin films
• Effect of Interface Induced Exchange Fields on Cuprate-Manganite Spin Switches
• Doping evolution of Zhang-Rice singlet spectral weight: a comprehensive examination by x-ray absorption spectroscopy
• Mott p-n Junctions in layered materials
• Observation of a Three-Dimensional Quasi-Long-Range Electronic Supermodulation in YBa2Cu3O7-x/La0.7Ca0.3MnO3 Heterostructures
• Mechanism of orbital reconstruction at the interfaces of transition metal oxides

Cited by in corpus (4)

• Decoupling carrier concentration and electron-phonon coupling in oxide heterostructures observed with resonant inelastic x-ray scattering
• Electronic Structure of the Dilute Magnetic Semiconductor $G{a}_{1-x}M{n}_{x}P$ from Hard X-ray Photoelectron Spectroscopy and Hard X-ray Angle-Resolved Photoemission
• Emergent phenomena at oxide interfaces studied with standing-wave photoelectron spectroscopy
• Interfacial and thickness effects in La${}_{2/3}$Sr${}_{1/3}$MnO${}_3$/YBa${}_2$Cu${}_3$O${}_7$ superlattices