"Direct Experimental Evidence for the Atomic Tunneling of Europium in C" by Raphäel P. Hermann, Veerle M. Keppens et al.
 

Abstract

Mössbauer-effect and microwave absorption experimental evidence unambiguously demonstrates the presence of slow, ~450 MHz, tunneling of magnetic europium between four equivalent sites in Eu8Ga16Ge30, a stoichiometric clathrate. Remarkably, six of the eight europium atoms, or 11% of the constituents in this solid, tunnel between these four sites separated by 0.55 Å. The off centering of the atoms or ions in crystalline clathrates appears to be a promising route for producing Rabi oscillators in solid-state materials.

Department(s)

Chemistry

Sponsor(s)

National Science Foundation (U.S.)
United States. Department of Energy

Keywords and Phrases

Electron Tunneling; Europium; Microwaves; Oscillators (Electronic); Solid State Physics; Stoichiometry; Atomic Tunneling; Rabi Oscillators; Solid-state Materials; Stoichiometric Clathrate; Crystalline Materials

International Standard Serial Number (ISSN)

0031-9007

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2006 American Physical Society (APS), All rights reserved.

Publication Date

01 Jul 2006

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