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cond-mat.supr-con2003★ 39 cited
A 4-unit-cell superstructure in optimally doped YBa2Cu3O6.92 superconductor
Zahirul Islam, X. Liu, S. K. Sinha +8
Using high-energy diffraction we show that a 4-unit-cell superstructure, q0=(1/4,0,0), along the shorter Cu-Cu bonds coexists with superconductivity in optimally doped YBCO. A comp…
cond-mat.supr-con2001★ 22 cited
X-Ray-Diffraction Study of Charge-Density-Waves and Oxygen-Ordering in YBa2Cu3O6+x Superconductor
Zahirul Islam, S. K. Sinha, D. Haskel +5
We report a temperature-dependent increase below 300 K of diffuse superlattice peaks corresponding to q_0 =(~2/5,0,0) in an under-doped YBa_2Cu_3O_6+x superconductor (x~0.63). Thes…