Measurement of Unique Magnetic and Superconducting Phases in Oxygen-Doped High-Temperature Superconductors La_(2-x)Sr_xCuO_(4+y)

L. Udby; J. Larsen; N.B. Christensen; M. Boehm; Ch. Niedermayer; H.E. Mohottala; T.B.S. Jensen; R. Toft-Petersen; E.C. Chou; N.H. Andersen; K. Lefmann; B.O. Wells

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Measurement of Unique Magnetic and Superconducting Phases in Oxygen-Doped High-Temperature Superconductors La_(2-x)Sr_xCuO_(4+y)

机译：掺氧高温超导体La_（2-x）Sr_xCuO_（4 + y）中独特磁和超导相的测量

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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 La_(2-x)Sr_xCuO_(4+y), x = 0.04, 0.065, 0.09. For all samples, we find long-range modulated magnetic order below TN approx= Tc = 39 K. In sharp contrast to oxygen-stoichiometric La_(2-x)Sr_xCuO_4, 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 La_(2-x)Sr_xCuO_(4+y), allows the spin stripe ordered phase to emerge and phase separate from superconducting regions with the hallmarks of optimally doped oxygen-stoichiometric La_(2-x)Sr_xCuO_4.

机译：我们提出了电子中子相分离La_（2-x）Sr_xCuO_（4 + y），x = 0.04，0.065，0.09中的磁和超导相性质的磁中子散射和μ自旋旋转的组合研究。对于所有样本，我们发现TN大约= Tc = 39 K以下的远距离调制磁阶。与氧化学计量的La_（2-x）Sr_xCuO_4形成鲜明对比，我们发现磁传播矢量以及有序磁矩与Sr含量无关，并且与“条纹”铜酸盐的含量一致。我们的研究提供了直接证据，证明La_（2-x）Sr_xCuO_（4 + y）中的超氧合可以使自旋条纹有序相出现并与超导区域相分离，并具有最佳掺杂的氧化学计量比La_（2-x） Sr_xCuO_4。

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来源
《Physical review letters》 |2013年第22期|227001.1-227001.5|共5页
作者
L. Udby; J. Larsen; N.B. Christensen; M. Boehm; Ch. Niedermayer; H.E. Mohottala; T.B.S. Jensen; R. Toft-Petersen; E.C. Chou; N.H. Andersen; K. Lefmann; B.O. Wells;
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作者单位

Nanoscience Center, Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark;

Department of Physics, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark;

Department of Physics, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark;

Institut Laue-Langevin, 38042 Grenoble Cedex 9, France;

Laboratory for Neutron Scattering, Paul Scherrer Institute, CH-5232 Villigen PSI, Switzerland;

University of Hartford, West Hartford, Connecticut 06117, USA;

Department of Physics, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark;

Department of Physics, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark,Helmholtz Zentrum Berlin fur Materialien und Energie, D-14109 Berlin, Germany;

Center for Condensed Matter Sciences, National Taiwan University, Taipei 10617, Taiwan;

Department of Physics, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark;

Nanoscience Center, Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark;

Department of Physics, University of Connecticut, Storrs, Connecticut 06269-3046, USA;

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正文语种 eng
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关键词
magnetic properties; effects of crystal defects, doping and substitution; muon spin rotation and relaxation;

机译：磁性晶体缺陷;掺杂和取代的影响;介子旋转和松弛;

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1. Magnetic ordering in electronically phase-separated La_(2-x)Sr_xCuO_(4+y): Neutron diffraction experiments [J] . L. Udby, N. H. Andersen, F. C. Chou, Physical review . 2009,第1期

机译：电子相分离La_（2-x）Sr_xCuO_（4 + y）中的磁有序：中子衍射实验
2. Competing phases in the superconducting state of La_(2-x)Sr_xCuO_4: Temperature- and magnetic-field-dependent quasiparticle relaxation measurements [J] . G. Bianchi, C. Chen, M. Nohara, Physical review. B, Condensed Matter And Materials Physics . 2005,第9期

机译：La_（2-x）Sr_xCuO_4超导状态下的竞争阶段：与温度和磁场有关的准粒子弛豫测量
3. Two-Dimensional Orbital-Like Magnetic Order in the High-Temperature La_(2-x)Sr_xCuO_4 Superconductor [J] . V. Baledent, B. Fauque, Y. Sidis, Physical review letters . 2010,第2期

机译：La_（2-x）Sr_xCuO_4高温超导体中的二维类似轨道的磁阶
4. Pressure-Induced Superconducting Phase Separation in Oxygen-Doped La_(2-x)Sr_xCuO_(4+δ) [C] . B. LORENZ, Z. G. LI, T. HONMA, NATO Advanced Research Workshop on Frontiers of High Pressure Research Ⅱ: Application of High Pressure to Low-Dimensional Novel Electronic Materials, Jun 10-15, 2001, Pringree Park, CO . 2001

机译：掺氧La_（2-x）Sr_xCuO_（4 +δ）中的压力诱导超导相分离
5. Electronic transport measurements in the electron-doped high-temperature superconductor Praseodymium(2-x) Cerium(x) Copper (II) oxide(4+-delta) [D] . Bach, Paul Leonard 2011

机译：电子掺杂的高温超导体Pra（2-x）铈（x）氧化铜（II）（4 +-δ）中的电子传输测量
6. Critical Current Simulation and Measurement of Second Generation High-Temperature Superconducting Coil under External Magnetic Field [O] . Dongmin Yu, Huanan Liu, Xinhe Zhang, 2018

机译：外磁场作用下第二代高温超导线圈的临界电流模拟与测量
7. Measurement of unique magnetic and superconducting phases in oxygen-doped high-temperature superconductors La_2-xSr_xCuO_4+y [O] . Udby Linda, Larsen Jacob, Christensen Niels Bech, 2013

机译：氧掺杂高温超导体La _{2-x sr _{x CuO _{4 + y 中独特磁性和超导相的测量}}}
8. Phase instability at the maximum (Tc) in oxide superconductors: Phase separation in La2CuO(4+x), Nd(2-x)Ce(x)CuO4, and La(2-x)Sr(x)CuO4. [R] . Jorgensen, J. D., Lightfoot, P., Pei, S., 1990

机译：氧化物超导体中最大相（Tc）的相不稳定性：La2CuO（4 + x），Nd（2-x）Ce（x）CuO4和La（2-x）sr（x）CuO4中的相分离。

Measurement of Unique Magnetic and Superconducting Phases in Oxygen-Doped High-Temperature Superconductors La_(2-x)Sr_xCuO_(4+y)

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