CS-133 NMR IN C-60 SUPERCONDUCTORS - CSXRB3-XC60 (X=1,2)

被引：27

作者：

MANIWA, Y ^{[1
]}

MIZOGUCHI, K ^{[1
]}

KUME, K ^{[1
]}

TANIGAKI, K ^{[1
]}

EBBESEN, TW ^{[1
]}

SAITO, S ^{[1
]}

MIZUKI, J ^{[1
]}

TSAI, JS ^{[1
]}

KUBO, Y ^{[1
]}

机构：

[1] NEC CORP LTD,FUNDAMENTAL RES LAB,TSUKUBA 305,JAPAN

来源：

SOLID STATE COMMUNICATIONS | 1992年 / 82卷 / 10期

关键词：

D O I：

10.1016/0038-1098(92)90164-5

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Cs-133 NMR study in superconductors CsxRb3-xC60 (x=1,2) above 77K is reported. For x=1, single absorption line was observed at -370+/-15 ppm with respect to that of CsCl aqueous solution at 300K, while for x=2 two lines at -120+/-25 ppm and -380+/-20 ppm were observed. The signal around -370 (-380) ppm was assigned to the Cs atoms intercalated in octahedral sites of fcc lattice in both of x=1 and 2, and the other line at -120ppm in x=2 to tetrahedral sites. These line positions (Knight shift) are close to that for second stage Cs-graphite intercalation compound, and are far from +1.48% of Knight shift in Cs-metal, indicating a negligible electronic density of state at the Fermi-level in the Cs sites.

引用

页码：783 / 785

页数：3

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