National rankings in materials science

Data provided by Thomson Reuters from its Essential Science Indicators, January 2000-April 2010

August 26, 2010

The data above were extracted from the Essential Science Indicators database of Thomson Reuters. This database, currently covering the period January 2000 to April 2010, 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 the 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 published 1,000 or more papers during the period to reveal weighted impact.

For articles with multiple authors from different nations, each nation receives full, not fractional, 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, 81 nations are listed, meaning 162 were surveyed. Some 47 nations published at least 1,000 papers in this field during the period. The world average in citation impact was 6.49.

For more information, see http://science.thomsonreuters.com/products/esi

Country Papers CitationsCitations per paper
1 The Netherlands 4,881 58,477 11.98
2 US 67,902 774,556 11.41
3 Switzerland 4,713 51,436 10.91
4 Israel 2,321 25,146 10.83
5 Denmark 1,526 15,740 10.31
6 Singapore 5,183 52,000 10.03
7 Scotland 1,658 16,494 9.95
8 Ireland 1,351 12,468 9.23
9 England 19,752 182,130 9.22
10 Belgium 3,958 34,595 8.74
11 Austria 3,439 29,160 8.48
12 Germany 31,964 261,247 8.17
13 France 21,861 172,352 7.88
14 Sweden 5,995 46,747 7.80
15 Canada 11,023 81,115 7.36
16 Italy 10,344 75,541 7.30
17 Spain 11,073 80,196 7.24
18 Australia 7,475 53,616 7.17
19 Norway 1,333 9,318 6.99
20 Japan 50,155 335,049 6.68

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