Measurement of unique magnetic and superconducting phases in oxygen-doped high-temperature superconductors La2-xSrxCuO4+y

Linda Udby; Jacob Larsen; Niels Bech Christensen; M. Boehm; Ch Niedermayer; H. E. Mohottala; Thomas Bagger Stibius Jensen; Rasmus Toft-Petersen; F. C. Chou; Niels Hessel Andersen; Kim Lefmann; B. O. Wells

Measurement of unique magnetic and superconducting phases in oxygen-doped high-temperature superconductors La_2-xSr_xCuO_4+y

Linda Udby
, Jacob Larsen
, Niels Bech Christensen
, M. Boehm
, Ch Niedermayer
, H. E. Mohottala
, Thomas Bagger Stibius Jensen
, Rasmus Toft-Petersen
, F. C. Chou
, Niels Hessel Andersen
, Kim Lefmann
, B. O. Wells

Department of Physics

Institut Laue-Langevin
Paul Scherrer Institute
University of Hartford
National Taiwan University
University of Connecticut
University of Copenhagen

Research output: Contribution to journal › Journal article › Research › peer-review

483 Downloads (Orbit)

Abstract

We present a combined magnetic neutron scattering and muon spin rotation study of the nature of the magnetic and superconducting phases in electronically phase separated La2-xSrxCuO4+y, x=0.04, 0.065, 0.09. For all samples, we find long-range modulated magnetic order below TN≃Tc=39 K. In sharp contrast to oxygen-stoichiometric La2-xSrxCuO4, we find that the magnetic propagation vector as well as the ordered magnetic moment is independent of Sr content and consistent with that of the “striped” cuprates. Our study provides direct proof that superoxygenation in La2-xSrxCuO4+y allows the spin stripe ordered phase to emerge and phase separate from superconducting regions with the hallmarks of optimally doped oxygen-stoichiometric La2-xSrxCuO4.

Original language	English
Journal	Physical Review Letters
Volume	111
Issue number	22
Pages (from-to)	227001
ISSN	0031-9007
Publication status	Published - 2013

Access to Document

PhysRevLettFinal published version, 338 KB

OpenUrl availability

Check availability in DTU Findit

Cite this

@article{a9f9180fa786406ba97c60812204f73c,

title = "Measurement of unique magnetic and superconducting phases in oxygen-doped high-temperature superconductors La2-xSrxCuO4+y",

abstract = "We present a combined magnetic neutron scattering and muon spin rotation study of the nature of the magnetic and superconducting phases in electronically phase separated La2-xSrxCuO4+y, x=0.04, 0.065, 0.09. For all samples, we find long-range modulated magnetic order below TN≃Tc=39 K. In sharp contrast to oxygen-stoichiometric La2-xSrxCuO4, we find that the magnetic propagation vector as well as the ordered magnetic moment is independent of Sr content and consistent with that of the “striped” cuprates. Our study provides direct proof that superoxygenation in La2-xSrxCuO4+y allows the spin stripe ordered phase to emerge and phase separate from superconducting regions with the hallmarks of optimally doped oxygen-stoichiometric La2-xSrxCuO4.",

author = "Linda Udby and Jacob Larsen and Christensen, \{Niels Bech\} and M. Boehm and Ch Niedermayer and Mohottala, \{H. E.\} and Jensen, \{Thomas Bagger Stibius\} and Rasmus Toft-Petersen and Chou, \{F. C.\} and Andersen, \{Niels Hessel\} and Kim Lefmann and Wells, \{B. O.\}",

year = "2013",

language = "English",

volume = "111",

pages = "227001",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "22",

}

TY - JOUR

T1 - Measurement of unique magnetic and superconducting phases in oxygen-doped high-temperature superconductors La2-xSrxCuO4+y

AU - Udby, Linda

AU - Larsen, Jacob

AU - Christensen, Niels Bech

AU - Boehm, M.

AU - Niedermayer, Ch

AU - Mohottala, H. E.

AU - Jensen, Thomas Bagger Stibius

AU - Toft-Petersen, Rasmus

AU - Chou, F. C.

AU - Andersen, Niels Hessel

AU - Lefmann, Kim

AU - Wells, B. O.

PY - 2013

Y1 - 2013

N2 - We present a combined magnetic neutron scattering and muon spin rotation study of the nature of the magnetic and superconducting phases in electronically phase separated La2-xSrxCuO4+y, x=0.04, 0.065, 0.09. For all samples, we find long-range modulated magnetic order below TN≃Tc=39 K. In sharp contrast to oxygen-stoichiometric La2-xSrxCuO4, we find that the magnetic propagation vector as well as the ordered magnetic moment is independent of Sr content and consistent with that of the “striped” cuprates. Our study provides direct proof that superoxygenation in La2-xSrxCuO4+y allows the spin stripe ordered phase to emerge and phase separate from superconducting regions with the hallmarks of optimally doped oxygen-stoichiometric La2-xSrxCuO4.

AB - We present a combined magnetic neutron scattering and muon spin rotation study of the nature of the magnetic and superconducting phases in electronically phase separated La2-xSrxCuO4+y, x=0.04, 0.065, 0.09. For all samples, we find long-range modulated magnetic order below TN≃Tc=39 K. In sharp contrast to oxygen-stoichiometric La2-xSrxCuO4, we find that the magnetic propagation vector as well as the ordered magnetic moment is independent of Sr content and consistent with that of the “striped” cuprates. Our study provides direct proof that superoxygenation in La2-xSrxCuO4+y allows the spin stripe ordered phase to emerge and phase separate from superconducting regions with the hallmarks of optimally doped oxygen-stoichiometric La2-xSrxCuO4.

M3 - Journal article

SN - 0031-9007

VL - 111

SP - 227001

JO - Physical Review Letters

JF - Physical Review Letters

IS - 22

ER -