Scimago Journal & Country Rank

Applied Physics Express

Country Japan  - SIR icon SIR Ranking of Japan
H Index
Subject Area and CategoryEngineering
Engineering (miscellaneous)

Physics and Astronomy
Physics and Astronomy (miscellaneous)
PublisherJapan Soc of Applied Physics
Publication typeJournals
Scope Applied Physics Express (APEX) is a letter journal devoted solely to rapid dissemination of up-to-date and concise reports on new findings in applied physics. This is published weekly online and monthly for the printed version. APEX is the successor to the Japanese Journal of Applied Physics (JJAP) letter section, JJAP Part 2, and not only has inherited the world-wide recognition of JJAP Part 2 (Letters and Express Letters), but also further promotes its strength in high scientific quality and prompt publication. In the journal policy, special emphasis is placed on high scientific and/or technological impact of its published papers.


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The set of journals have been ranked according to their SJR and divided into four equal groups, four quartiles. Q1 (green) comprises the quarter of the journals with the highest values, Q2 (yellow) the second highest values, Q3 (orange) the third highest values and Q4 (red) the lowest values.

Engineering (miscellaneous)2009Q1
Engineering (miscellaneous)2010Q1
Engineering (miscellaneous)2011Q1
Engineering (miscellaneous)2012Q1
Engineering (miscellaneous)2013Q1
Engineering (miscellaneous)2014Q1
Engineering (miscellaneous)2015Q1
Engineering (miscellaneous)2016Q1
Engineering (miscellaneous)2017Q1
Physics and Astronomy (miscellaneous)2009Q1
Physics and Astronomy (miscellaneous)2010Q1
Physics and Astronomy (miscellaneous)2011Q1
Physics and Astronomy (miscellaneous)2012Q1
Physics and Astronomy (miscellaneous)2013Q1
Physics and Astronomy (miscellaneous)2014Q1
Physics and Astronomy (miscellaneous)2015Q1
Physics and Astronomy (miscellaneous)2016Q1
Physics and Astronomy (miscellaneous)2017Q1

The SJR is a size-independent prestige indicator that ranks journals by their 'average prestige per article'. It is based on the idea that 'all citations are not created equal'. SJR is a measure of scientific influence of journals that accounts for both the number of citations received by a journal and the importance or prestige of the journals where such citations come from It measures the scientific influence of the average article in a journal, it expresses how central to the global scientific discussion an average article of the journal is.

Citations per document

This indicator counts the number of citations received by documents from a journal and divides them by the total number of documents published in that journal. The chart shows the evolution of the average number of times documents published in a journal in the past two, three and four years have been cited in the current year. The two years line is equivalent to journal impact factor ™ (Thomson Reuters) metric.

Cites per documentYearValue
Cites / Doc. (4 years)20080.000
Cites / Doc. (4 years)20091.390
Cites / Doc. (4 years)20102.266
Cites / Doc. (4 years)20112.825
Cites / Doc. (4 years)20122.731
Cites / Doc. (4 years)20132.980
Cites / Doc. (4 years)20142.644
Cites / Doc. (4 years)20152.307
Cites / Doc. (4 years)20162.603
Cites / Doc. (4 years)20172.393
Cites / Doc. (3 years)20080.000
Cites / Doc. (3 years)20091.390
Cites / Doc. (3 years)20102.266
Cites / Doc. (3 years)20112.825
Cites / Doc. (3 years)20123.108
Cites / Doc. (3 years)20132.974
Cites / Doc. (3 years)20142.567
Cites / Doc. (3 years)20152.340
Cites / Doc. (3 years)20162.632
Cites / Doc. (3 years)20172.503
Cites / Doc. (2 years)20080.000
Cites / Doc. (2 years)20091.390
Cites / Doc. (2 years)20102.266
Cites / Doc. (2 years)20113.385
Cites / Doc. (2 years)20123.014
Cites / Doc. (2 years)20132.829
Cites / Doc. (2 years)20142.581
Cites / Doc. (2 years)20152.280
Cites / Doc. (2 years)20162.696
Cites / Doc. (2 years)20172.447
Total Cites 

Evolution of the total number of citations and journal's self-citations received by a journal's published documents during the three previous years.
Journal Self-citation is defined as the number of citation from a journal citing article to articles published by the same journal.

Self Cites20080
Self Cites200924
Self Cites2010115
Self Cites2011180
Self Cites2012210
Self Cites2013229
Self Cites2014244
Self Cites2015145
Self Cites2016166
Self Cites2017166
Total Cites20080
Total Cites2009474
Total Cites20101541
Total Cites20112896
Total Cites20123428
Total Cites20133652
Total Cites20143496
Total Cites20153187
Total Cites20163380
Total Cites20173014
External Cites per Doc 
Cites per Doc

Evolution of the number of total citation per document and external citation per document (i.e. journal self-citations removed) received by a journal's published documents during the three previous years. External citations are calculated by subtracting the number of self-citations from the total number of citations received by the journal’s documents.

External Cites per document20080
External Cites per document20091.320
External Cites per document20102.097
External Cites per document20112.650
External Cites per document20122.917
External Cites per document20132.787
External Cites per document20142.388
External Cites per document20152.233
External Cites per document20162.503
External Cites per document20172.365
Cites per document20080.000
Cites per document20091.390
Cites per document20102.266
Cites per document20112.825
Cites per document20123.108
Cites per document20132.974
Cites per document20142.567
Cites per document20152.340
Cites per document20162.632
Cites per document20172.503
% International Collaboration

International Collaboration accounts for the articles that have been produced by researchers from several countries. The chart shows the ratio of a journal's documents signed by researchers from more than one country; that is including more than one country address.

YearInternational Collaboration
Citable documents 
Non-citable documents

Not every article in a journal is considered primary research and therefore "citable", this chart shows the ratio of a journal's articles including substantial research (research articles, conference papers and reviews) in three year windows vs. those documents other than research articles, reviews and conference papers.

Non-citable documents20080
Non-citable documents20092
Non-citable documents20103
Non-citable documents20113
Non-citable documents201210
Non-citable documents201316
Non-citable documents201417
Non-citable documents201512
Non-citable documents201614
Non-citable documents201718
Citable documents20080
Citable documents2009341
Citable documents2010680
Citable documents20111025
Citable documents20121103
Citable documents20131228
Citable documents20141362
Citable documents20151362
Citable documents20161284
Citable documents20171204
Cited documents 
Uncited documents

Ratio of a journal's items, grouped in three years windows, that have been cited at least once vs. those not cited during the following year.

Uncited documents20080
Uncited documents2009175
Uncited documents2010264
Uncited documents2011297
Uncited documents2012292
Uncited documents2013314
Uncited documents2014374
Uncited documents2015413
Uncited documents2016348
Uncited documents2017363
Cited documents20080
Cited documents2009168
Cited documents2010419
Cited documents2011731
Cited documents2012821
Cited documents2013930
Cited documents20141005
Cited documents2015961
Cited documents2016950
Cited documents2017859
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