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"Boron isotope effect in
superconducting MgB2," by S.L. Bud'ko and 5 others, Physical
Review Letters, 86(9):1877-80, 26 February 2001.
[Authors' affiliations: Ames Laboratory, and
Iowa State University, Ames]
Abstract: "We report the
preparation method of and boron isotope effect for MgB2, a new binary
intermetallic superconductor with a remarkably high superconducting transition
temperature Tc (10B) = 40.2 K. Measurements of both temperature dependent
magnetization and specific heat reveal a 1.0 K shift in Tc between Mg11B2 and
Mg10B2. Whereas such a high transition temperature might imply exotic coupling
mechanisms, the boron isotope effect in MgB2 is consistent with the material
being a phonon-mediated BCS superconductor."
This 2001 Physical Review Letters
paper was cited 38 times in new journal articles indexed by ISI
during November-December 2001. That two-month total made this the
second-most-cited paper in physics published in the last two years, aside from
reviews. This report, in fact, was among the non-review papers published in
2001 that had collected the highest citation totals by year's end--one of nine
2001 papers on magnesium diboride that ranked among the year's most-cited
reports. Prior to the most recent bimonthly count, citations to the paper have
accrued as follows:
September-October 2001: 35 citations
July-August 2001: 41
May-June 2001: 20
March-April 2001: 6
Total citations to date: 140
SOURCE: Hot
Papers Database (Included with a subscription to the ISI print newsletter Science
Watch®, available from the ISI
Research Services Group. Packaged on a CD-ROM that is mailed with each Science
Watch issue, the Hot
Papers Database contains data on hundreds of highly cited papers published
during the last two years. User interface permits searching by author,
organization, journal, field, and more. Total citations, as well as citations
accrued during successive bimonthly periods, can be assessed and graphed. An
updated CD containing the most recent bimonthly data is mailed with every new
issue of Science
Watch,
six times a year. The CD also includes an electronic version of the Science
Watch
issue in HTML format, for personal desktop access.)
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