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Spin dynamics in the stripe phase of high-Tc cuprates with the modulation of superconducting order
被引:1
作者:
Zhou, J.
[1
,2
]
Guo, J.
[1
,2
]
Jiang, H. M.
[3
]
Li, J. X.
[1
,2
]
机构:
[1] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China
[2] Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China
[3] Hangzhou Normal Univ, Dept Phys, Hangzhou 310036, Zhejiang, Peoples R China
基金:
中国国家自然科学基金;
关键词:
COPPER-OXIDE SUPERCONDUCTORS;
MAGNETIC FLUCTUATIONS;
TEMPERATURE;
LA2-XSRXCUO4;
EXCITATIONS;
SCATTERING;
D O I:
10.1140/epjb/e2011-20173-3
中图分类号:
O469 [凝聚态物理学];
学科分类号:
070205 ;
摘要:
Possible superconducting order modulation and its effect on the spin susceptibility in the coexisting phase of the stripe and superconducting orders are investigated. It is shown that the superconducting order modulation is mainly caused by the spin-domain-derived scattering, while the charge-domain-derived scattering tends to suppress it in a wide parameter region. The modulation leads to a two-peak structure in the spin excitation spectrum, which is qualitatively consistent with the recent experimental observations in La2-xSrxCuO4. This result suggests the importance of the superconducting order modulation for the understanding of the multiform spin excitations in these cuprate superconductors.
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页码:295 / 301
页数:7
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