Hole concentration dependence of the magnetic moment in superconducting and insulating La{sub 2-x}Sr{sub x}CuO{sub 4}
Journal Article
·
· Physical Review B
Recent neutron-scattering measurements on the La{sub 2-x}Sr{sub x}CuO{sub 4} system have revealed a drastic change of the incommensurate static-spin correlations from diagonal in the insulating region to parallel in the superconducting region. We report the doping dependence of the ordered magnetic moment for the hole concentration region 0.03{<=}x{le}0.12, focusing on the relationship between the static magnetism and the superconductivity. The elastic magnetic cross-section decreases monotonically with increasing x for 0.03{<=}x{le}0.07. We find that the ordered magnetic moment {mu} varies from {approx}0.18{mu}{sub B}/Cu(x=0.03) to {approx}0.06{mu}{sub B}/Cu(x=0.07). No significant anomaly is observed at the insulator-superconductor boundary (x{approx}0.055). The elastic magnetic cross-section is enhanced in the vicinity of x=0.12 where resolution-limited width peaks are observed in neutron-scattering measurements and where the apparent magnetic and superconducting transitions coincide.
- Sponsoring Organization:
- (US)
- OSTI ID:
- 40205495
- Journal Information:
- Physical Review B, Journal Name: Physical Review B Journal Issue: 17 Vol. 63; ISSN 0163-1829
- Publisher:
- The American Physical Society
- Country of Publication:
- United States
- Language:
- English
Similar Records
Static and dynamic spin correlations in the spin-glass phase of slightly doped La{sub 2-x}Sr{sub x}CuO{sub 4}
Neutron-scattering study of static antiferromagnetic correlations in La{sub 2{minus}x}Sr{sub x}Cu{sub 1{minus}y}Zn{sub y}O{sub 4}
Doping dependence of the spatially modulated dynamical spin correlations and the superconducting-transition temperature in La{sub 2{minus}{bold {ital x}}}Sr{sub x}CuO{sub 4}
Journal Article
·
Sun Oct 01 00:00:00 EDT 2000
· Physical Review B
·
OSTI ID:40205608
Neutron-scattering study of static antiferromagnetic correlations in La{sub 2{minus}x}Sr{sub x}Cu{sub 1{minus}y}Zn{sub y}O{sub 4}
Journal Article
·
Sun Feb 28 23:00:00 EST 1999
· Physical Review, B: Condensed Matter
·
OSTI ID:321530
Doping dependence of the spatially modulated dynamical spin correlations and the superconducting-transition temperature in La{sub 2{minus}{bold {ital x}}}Sr{sub x}CuO{sub 4}
Journal Article
·
Sat Feb 28 23:00:00 EST 1998
· Physical Review, B: Condensed Matter
·
OSTI ID:570296