Improving resolution of solid state NMR in dense molecular hydrogen

被引：11

作者：

Meier, Thomas ^{[1
]}

Khandarkhaeva, Saiana ^{[1
]}

Jacobs, Jeroen ^{[2
]}

Dubrovinskaia, Natalia ^{[3
]}

Dubrovinsky, Leonid ^{[1
]}

机构：

[1] Univ Bayreuth, Bavarian Geoinst, D-95447 Bayreuth, Germany

[2] ESRF, F-38043 Grenoble, France

[3] Univ Bayreuth, Mat Phys & Technol Extreme Condit, Lab Crystallog, D-95447 Bayreuth, Germany

来源：

APPLIED PHYSICS LETTERS | 2019年 / 115卷 / 13期

关键词：

ORTHO-PARA CONVERSION; LINE-SHAPES; DIFFRACTION; TRANSITION;

D O I：

10.1063/1.5123232

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Recent advancements in radio frequency resonator designs have led to the implementation of nuclear magnetic resonance in diamond anvil cells (DACs) at pressures well above 100 GPa. However, a relatively low resolution and the absence of decoupling sequences complicate the analysis of the results of solid state NMR in DACs. Here, we present the first application of homonuclear Lee-Goldburg (LG) decoupling on high density molecular hydrogen up to 64 GPa. Lenz lens based two-dimensional resonator structures were found to generate a homogeneous B-1 field across sample cavities as small as 12 pl, a prerequisite for optimal decoupling. At ideal LG conditions, the broad H-1 resonance of molecular ortho-hydrogen was narrowed 1600-fold, resulting in linewidths of 3.1 ppm.

引用

页数：4

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