Observation of quantum coherence in mesoscopic molecular magnets |
| |
Authors: | Luis Mettes Tejada Gatteschi de Jongh LJ |
| |
Institution: | Kamerlingh Onnes Laboratory, Leiden University, P.O. Box 9506, 2300 RA, Leiden, The Netherlands. |
| |
Abstract: | By applying a transverse magnetic field B( perpendicular) of sufficient strength to the uniaxial molecular magnets Fe8 and Mn12, the tunneling splitting Delta(t) of their S = +/-10 magnetic ground states can be made large compared to perturbations such as hyperfine and dipolar interactions. We present evidence for such a Delta(t) from magnetic specific heat data below 1 K that is consistent with coherent quantum mechanical tunneling in a "mesoscopic" system under such conditions. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|