Muon-spin-rotation studies of organic magnets - Discussion

被引：14

作者：

Verdaguer, M ^{[1
]}

Blundell, SJ ^{[1
]}

Verdaguer, M ^{[1
]}

Blundell, SJ ^{[1
]}

机构：

[1] Univ Paris 06, Paris, France

来源：

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES | 1999年 / 357卷 / 1762期

关键词：

Molecular magnets; Muon-spin rotation; Nitronyl nitroxides; Organic magnets;

D O I：

10.1098/rsta.1999.0474

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

A muon is an unstable spin-1/2 particle with a lifetime of 2.2 μs. Beams of spinpolarized positive muons can be prepared at accelerator facilities and then subsequently implanted in various types of condensed matter. Both the time and direction dependence of the subsequent positron emission can be monitored. This allows the precession and relaxation of the average muon-spin polarization to be measured and the local magnetic field in the sample to be directly inferred. The muon thus behaves essentially as a 'microscopic magnetometer' and is used to follow the magnetic order at a local level and to investigate both static and dynamic effects. This article outlines the principles of various experimental techniques that involve implanted muons, and reviews some recent experimental data on organic and molecular magnets.

引用

页码：2936 / 2937

页数：2