HIGH-RESOLUTION C-13 NMR-SPECTRA IN GRAPHITE CHEMICAL-SHIFT AND DIAMAGNETISM

被引：33

作者：

HIROYAMA, Y

KUME, K

机构：

[1] Tokyo Metropolitan Univ, Tokyo, Jpn, Tokyo Metropolitan Univ, Tokyo, Jpn

来源：

SOLID STATE COMMUNICATIONS | 1988年 / 65卷 / 07期

关键词：

CRYSTALS - Physical Properties - MAGNETIC RESONANCE - MAGNETISM - Diamagnetism;

D O I：

10.1016/0038-1098(88)90350-X

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We have obtained high resolution **1**3C NMR spectra of graphite which are composed of two narrow lines. The temperature dependence of **1**3C NMR shift from 77 to 473 K, and the angular dependence from H//0 parallel c to H//0 PERPEND c were measured. The spin lattice relaxation time T// vertical of each resolved line at room temperature was also measured. It was found that the main contribution to the **1**3C NMR shift is the chemical shift (electron orbital interaction), and that the anisotropic chemical shift is expressed as the sum of the temperature-independent part and the temperature-dependent part which is proportional to the anisotropic bulk susceptibility.

引用

页码：617 / 619

页数：3

共 16 条

[1] HIGH-FIELD C-13 NMR IN DONOR COMPOUNDS OF GRAPHITE (A MODEL FOR THE VALENCE BANDSHAPE) [J].