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APS » Journals » Phys. Rev. Lett. » Volume 83 » Issue 5
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Phys. Rev. Lett. 83, 987–990 (1999)

An Atom in the Bloch State

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R. Kadono and W. Higemoto
Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan

K. Nagamine* and F. L. Pratt
The Institute of Physical and Chemical Research (RIKEN), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan

Received 8 April 1999; published in the issue dated 2 August 1999

A resonant enhancement of muon spin relaxation has been observed at a field where the muonium Zeeman splitting crosses a Van Hove singularity in the small polaron band for interstitial muonium in potassium chloride. This feature is predicted only for muonium in a coherent state near the bottom of the band and thus clearly establishes that a light interstitial atom such as muonium can exist in a Bloch state in an ordered crystalline host at low temperature.

© 1999 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.83.987
DOI:
10.1103/PhysRevLett.83.987
PACS:
66.35.+a, 61.72.-y, 76.75.+i

*Also at Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan.

 
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