ELECTRONIC STATES STUDIES OF ALKALI-METAL-DOPED C-60 SUPERCONDUCTORS BY NUCLEAR-MAGNETIC-RESONANCE

被引：5

作者：

KOSAKA, M ^{[1
]}

TANIGAKI, K ^{[1
]}

EBBESEN, TW ^{[1
]}

NAKAHARA, Y ^{[1
]}

TATEISHI, K ^{[1
]}

机构：

[1] NEC CORP LTD,RESOURCES & ENVIRONM PROTECT RES LABS,MIYAMAE KU,KAWASAKI,KANAGAWA 213,JAPAN

来源：

APPLIED PHYSICS LETTERS | 1993年 / 63卷 / 18期

关键词：

D O I：

10.1063/1.110433

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The density of states at the Fermi level [N(E(F))] of alkali-metal-doped C60 superconductors having a wide range of T(c) from Na2Rb1C60 (T(c) = 3.5 K) to Rb1CS2C60 (T(c) = 33 K) is systematically studied using spin-lattice relaxation times (T1) by NMR spectroscopy. The obtained N(E(F)) values suggest that the phonon modes associated with superconductivity are high and that the electron-phonon coupling constant is responsible for the large decrease in T(c) in the small lattice parameter region.

引用

页码：2561 / 2563

页数：3

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