G. Cao

activity

20042008

most citedThorium-doping induced superconductivity up to 56 K in Gd1-xThxFeAsO

626 citations · 963 across the 8 of their papers we have counts for

collaborators

Showing 2007Show all

3 papers · 1 filter

cond-mat.supr-con2007★ 3 cited

Upper critical field of aligned Na_{x}(H_{3}O)_{z}CoO_{2}\cdot yH_{2}O superconductor by magnetization measurement

Zhi Ren, Chunmu Feng, Zhu'an Xu +2

We present magnetization measurements for the upper critical field $H_{c 2}$ on aligned Na $_{x}$ (H $_{3}$ O) $_{z}$ CoO $_{2} \cdot y$ H $_{2}$ O superconductors with magnetic field parallel…

cond-mat.supr-con2007★ 5 cited

Tuning Co valence state in cobalt oxyhydrate superconductor by post reduction

Zhi Ren, Jianlin Luo, Zhu'an Xu +1

We report a successful tuning of Co valence state in cobalt oxyhydrate superconductor via a facile post reduction using NaOH as reducing agent. The change in Co valence was precise…

cond-mat.mtrl-sci2007★ 25 cited

Ti-rich and Cu-poor grain-boundary layers of CaCu $_{3}$ Ti $_{4}$ O $_{12}$ detected by x-ray photoelectron spectroscopy

C. Wang, H. J. Zhang, P. M. He +1

Cleaved and polished surfaces of CaCu $_{3}$ Ti $_{4}$ O $_{12}$ ceramics have been investigated by x-ray photoelectron spectroscopy (XPS) and energy dispersive x-ray spectroscopy (EDX), re…

Upper critical field of aligned Na_{x}(H_{3}O)_{z}CoO_{2}\cdot yH_{2}O superconductor by magnetization measurement

Tuning Co valence state in cobalt oxyhydrate superconductor by post reduction

Ti-rich and Cu-poor grain-boundary layers of CaCu3​Ti4​O12​ detected by x-ray photoelectron spectroscopy

Ti-rich and Cu-poor grain-boundary layers of CaCu $_{3}$ Ti $_{4}$ O $_{12}$ detected by x-ray photoelectron spectroscopy