Mn12-acetate中偶极场的实验测定
Experimental determination of the dipolar field in Mn12-acetate
摘要：
已知分子磁体Mn 12-乙酸盐的晶体含有小部分低对称性（次要）物质，其具有小的各向异性势垒以对抗自旋反转。较低的势垒导致更快的磁弛豫和更低的矫顽场。我们利用低矫顽场的次要物种，使Mn 12-AC中的偶极场的直接测定。我们发现，一个完全磁化的晶体的偶极场是51.5 \pm 8.5 mT，与理论预期一致。
英文摘要：
Crystals of the molecular magnet Mn12-acetate are known to contain a small fraction of low- symmetry (minor) species with a small anisotropy barrier against spin reversal. The lower barrier leads to faster magnetic relaxation and lower coercive field. We exploit the low coercive fields of the minor species to make a direct determination of the dipole field in Mn12-ac. We find that the dipolar field of a fully magnetized crystal is 51.5 \pm 8.5 mT, consistent with theoretical expectations.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
