Physics – Condensed Matter – Superconductivity
Scientific paper
2005-06-02
Physics
Condensed Matter
Superconductivity
4 pages, 4 figures
Scientific paper
We report a simple and easily controllable method where a nano-undulated surface morphology of Nd1/3Eu1/3Gd1/3Ba2Cu3Ox (NEG) films leads to a substantial increase in the critical current density in superconducting YBa2Cu3Ox (YBCO) films deposited by pulsed laser deposition on such NEG layers. The enhancement is observed over a wide range of fields and temperatures. Transmission electron microscopy shows that such YBCO films possess a high density of localized areas, typically 20 x 20 nm2 in size, where distortion of atomic planes give rotational (2 to 5 degrees) moire patterns. Their distribution is random and uniform, and expected to be the origin of the enhanced flux pinning. Magneto-optical imaging shows that these films have excellent macroscopic magnetic uniformity.
Baikalov A.
Chen Fangpei
Chu Cheng-Wei
Johansen Tom H.
Meng R. L.
No associations
LandOfFree
Enhanced critical current density of YBa2Cu3Ox films grown on Nd1/3Eu1/3Gd1/3Ba2Cu3Ox with nano-undulated surface morphology does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Enhanced critical current density of YBa2Cu3Ox films grown on Nd1/3Eu1/3Gd1/3Ba2Cu3Ox with nano-undulated surface morphology, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Enhanced critical current density of YBa2Cu3Ox films grown on Nd1/3Eu1/3Gd1/3Ba2Cu3Ox with nano-undulated surface morphology will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-434574