摘要
Our detailed measurements show the undoped double perovskite Ba 2+2Pr3+Ru5+O2- 6 to be a nonmetallic (insulating) spin glass (SG) and the ∼5-10% Cu-doped (i.e., Cu-concentration/(Cu+Ru-concentration) ∼5-10%) system to be a spin glass superconductor (SGSC), though the critical temperature, Tc, (∼8-11 K) and the superconducting volume fraction, fsc, (∼1-4%) are small. This smallness is presumably due to the presence of a large number of pair breaking spins and small carrier concentration in the lattice. Results and their implications are discussed.
原文 | 英語 |
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頁(從 - 到) | 71-81 |
頁數 | 11 |
期刊 | Physics Letters, Section A: General, Atomic and Solid State Physics |
卷 | 324 |
發行號 | 1 |
DOIs | |
出版狀態 | 已發佈 - 2004 四月 5 |
ASJC Scopus subject areas
- Physics and Astronomy(all)