| Title | $\beta$-NMR investigation of the vortex lattice near the interface of silver and Pr$_1.85$Ce$_0.15$Cu$O$_{4-δ$ thin films |
| Publication Type | Journal Article |
| Year of Publication | 2009 |
| Authors | Saadaoui, H, MacFarlane, WA, Salman, Z, Morris, GD, Chow, KH, Fan, I, Fournier, P, Hossain, MD, Keeler, TA, Kreitzman, SR, Levy, CDP, Mansour, AI, Miller, RI, Parolin, TJ, Pearson, MR, Song, Q, Wang, D, Kiefl, RF |
| Journal | Physica B: Condensed Matter |
| Volume | 404 |
| Pagination | 727 - 729 |
| ISSN | 0921-4526 |
| Keywords | Vortex state |
| Abstract | In this paper, we report observation of the vortex lattice above the surface of high-temperature superconductors Pr 2 - x Ce x CuO 4 - δ using beta-detected \{NMR\} ( β -NMR) of Li + 8 implanted in a 40 nm thick Ag overlayer. The resonance in Ag broadens dramatically below the transition temperature T c as expected from the vortex lattice in the underlying superconductor. However, the lineshape is nearly symmetric with the absence of a high-field tail and exhibits a slight positive shift of the average field below T c . |
| URL | http://www.sciencedirect.com/science/article/pii/S0921452608006546 |
| DOI | 10.1016/j.physb.2008.11.187 |
