Top nations in materials science based on impact

Data provided by Thomson Reuters from its Essential Science Indicators database, 1 January 1998-31 August 2008

November 20, 2008

Nation Papers CitationsCitations %3Cbr /%3Eper paper
1 United States72,141 684,332 9.49
2 The Netherlands4,985 46,067 9.24
3 Israel2,544 23,138 9.10
4 Switzerland4,801 41,937 8.74
5 Denmark1,602 13,258 8.28
6 Scotland1,797 13,641 7.59
7 England21,243 158,366 7.45
8 Singapore5,153 36,761 7.13
9 Belgium3,977 ,774 6.98
10 Germany34,168 2,561 6.66
11 France23,137 152,462 6.59
12 Sweden6,461 42,255 6.54
13 Austria3,355 21,684 6.46
14 Canada11,300 70,831 6.
15 Italy10,456 61,593 5.89
16 Spain11,021 64,618 5.86
17 Australia7,410 43,189 5.83
18 Japan53,138 305,603 5.75
19 Finland2,811 15,633 5.56
20 Taiwan10,575 53,364 5.05
The data above were extracted from the Essential Science Indicators database of Thomson Reuters. This database, currently covering the period January 1998 through August 2008, surveys only journal articles (original research reports and review articles) indexed by Thomson Reuters. Articles are assigned to a category based on the journals in which they were published and Thomson Reuters’ journal-to-category field-definition scheme. Both articles tabulated and citation counts to those articles are for the period indicated. Here our ranking in materials science is by citations per paper – among nations that collected 10,000 or more citations during the period – to reveal weighted impact. For articles with multiple authors from different nations, each nation receives full, not fractional, citation credit. Essential Science Indicators lists nations ranked in the top 50 per cent for a field over a given period, based on total citations. In materials science, 78 nations are listed, meaning 156 were surveyed. Thirty-two nations collected at least 10,000 citations during the period.

For more information on Thomson Reuters’ Essential Science Indicators, see

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