Anomalies in the NMR of silicon: Unexpected spin echoes in a dilute dipolar solid

被引：35

作者：

Dementyev, AE ^{[1
]}

Li, D ^{[1
]}

MacLean, K ^{[1
]}

Barrett, SE ^{[1
]}

机构：

[1] Yale Univ, Dept Phys, New Haven, CT 06511 USA

来源：

PHYSICAL REVIEW B | 2003年 / 68卷 / 15期

关键词：

D O I：

10.1103/PhysRevB.68.153302

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

NMR spin echo measurements of Si-29 in silicon powders have uncovered a variety of surprising phenomena that appear to be independent of doping. These surprises include long tails and even-odd asymmetry in Carr-Purcell-Meiboom-Gill (CPMG) echo trains, and anomalous stimulated echoes with several peculiar characteristics. Given the simplicity of this spin system, these results, which to date defy explanation, present an interesting puzzle in solid state NMR.

引用

页数：4

共 30 条

[1] ANALYSIS OF CARR-PURCELL SPIN-ECHO NMR EXPERIMENTS ON MULTIPLE-SPIN SYSTEMS .I. EFFECT OF HOMONUCLEAR COUPLING [J].