HAVE RESONANCE EXPERIMENTS SEEN MACROSCOPIC QUANTUM COHERENCE IN MAGNETIC PARTICLES - THE CASE FROM POWER ABSORPTION

被引：41

作者：

GARG, A

机构：

[1] Department of Physics and Astronomy, Northwestern University, Evanston

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 25期

关键词：

D O I：

10.1103/PhysRevLett.71.4249

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Recent magnetic resonance experiments on ferritin and nanofabricated magnetic dots of Fe(CO)5 have been interpreted in the framework of macroscopic quantum coherence (MQC). The power absorption in MQC is calculated and shown to be exceeded by a factor of 50 to 150 in the ferritin experiments. Alternative microscopic causes for the resonance are suggested. In the Fe(CO)5 experiments, MQC predicts no resonance at all at the ac fields involved, and the power absorbed is 10(18) times larger than expected.

引用

页码：4249 / 4252

页数：4

共 25 条

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