Search research articles

Search research articles

Related Experiment Videos

Phase separation in superoxygenated La2-xSrxCuO4+y.

Hashini E Mohottala¹, Barrett O Wells, Joseph I Budnick

¹University of Connecticut U-3046, 2152 Hillside Road, Storrs, Connecticut 06269-3046, USA.

Nature Materials

|April 18, 2006

Summary

This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Versatile Magneto-Dielectric Response of Epitaxial Thin Films of the High Entropy Oxide Perovskite Nd(Cr<sub>0.2</sub>Mn<sub>0.2</sub>Fe<sub>0.2</sub>Co<sub>0.2</sub>Ni<sub>0.2</sub>)O<sub>3</sub>.

Advanced materials (Deerfield Beach, Fla.)·2026

Same author

Spontaneous voltage and persistent electric current from rectification of electronic noise in cuprate/manganite heterostructures.

Nature communications·2025

Same author

BIFROST-An indirect geometry cold neutron spectrometer at the European Spallation Source.

The Review of scientific instruments·2025

Same author

Unraveling the origin of Kondo-like behavior in the 3<i>d</i>-electron heavy-fermion compound YFe<sub>2</sub>Ge<sub>2</sub>.

Proceedings of the National Academy of Sciences of the United States of America·2024

Same author

Composite antiferromagnetic and orbital order with altermagnetic properties at a cuprate/manganite interface.

PNAS nexus·2024

Same author

Tuning magnetoelectricity in a mixed-anisotropy antiferromagnet.

Nature communications·2023

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Superoxygenation in lanthanum strontium cuprate superconductors induces phase separation into distinct magnetic and superconducting regions. These coexisting phases, both ordering near 40 K, offer insights into cuprate superconductivity.

Area of Science:

Condensed Matter Physics
Materials Science
Superconductivity

Background:

The relationship between superconductivity and magnetism in cuprates is complex and not fully understood.
Phase separation is a critical phenomenon influencing the properties of strongly correlated electron systems.

Purpose of the Study:

To investigate the impact of superoxygenation on the phase behavior of lanthanum strontium cuprate (La(2-x)Sr(x)CuO(4+y)).
To explore the coexistence and nature of magnetic and superconducting phases in these materials.

Main Methods:

Synthesis of superoxygenated La(2-x)Sr(x)CuO(4+y) samples with varying strontium (Sr) content.
Characterization of magnetic and superconducting properties through temperature-dependent measurements.

Related Experiment Videos

Main Results:

Excess oxygen in La(2-x)Sr(x)CuO(4+y) leads to phase separation into distinct magnetic and superconducting regions.
Both the superconducting and magnetic spin-density wave phases exhibit ordering temperatures near 40 K.
The magnetic regions resemble 1/8-hole-doped La(2)CuO(4), while superconducting regions are optimally doped.

Conclusions:

The observed two-component system in superoxygenated La(2-x)Sr(x)CuO(4+y) represents a potential model for electronic phase separation in cuprate superconductors.
This finding provides a framework for understanding previously conflicting experimental results in these materials.