Physica E: Low-Dimensional Systems and Nanostructures

Physica E: Low-dimensional systems and nanostructures contains papers and invited review articles on the fundamental and applied aspects of physics in low-dimensional electron systems, in semiconductor heterostructures, oxide interfaces, quantum wells and superlattices, quantum wires and dots, novel quantum states of matter such as topological insulators, and Weyl semimetals. Both theoretical and experimental contributions are invited. Topics suitable for publication in this journal include spin related phenomena, optical and transport properties, many-body effects, integer and fractional quantum Hall effects, quantum spin Hall effect, single electron effects and devices, Majorana fermions, and other novel phenomena. Keywords: • topological insulators/superconductors, majorana fermions, Wyel semimetals; • quantum and neuromorphic computing/quantum information physics and devices based on low dimensional systems; • layered superconductivity, low dimensional systems with superconducting proximity effect; • 2D materials such as transition metal dichalcogenides; • oxide heterostructures including ZnO, SrTiO3 etc; • carbon nanostructures (graphene, carbon nanotubes, diamond NV center, etc.) • quantum wells and superlattices; • quantum Hall effect, quantum spin Hall effect, quantum anomalous Hall effect; • optical- and phonons-related phenomena; • magnetic-semiconductor structures; • charge/spin-, magnon-, skyrmion-, Cooper pair- and majorana fermion- transport and tunneling; • ultra-fast nonlinear optical phenomena; • novel devices and applications (such as high performance sensor, solar cell, etc); • novel growth and fabrication techniques for nanostructures

Quartiles

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.

Category	Year	Quartile
Atomic and Molecular Physics, and Optics	1999	Q2
Atomic and Molecular Physics, and Optics	2000	Q2
Atomic and Molecular Physics, and Optics	2001	Q2
Atomic and Molecular Physics, and Optics	2002	Q2
Atomic and Molecular Physics, and Optics	2003	Q2
Atomic and Molecular Physics, and Optics	2004	Q2
Atomic and Molecular Physics, and Optics	2005	Q2
Atomic and Molecular Physics, and Optics	2006	Q2
Atomic and Molecular Physics, and Optics	2007	Q2
Atomic and Molecular Physics, and Optics	2008	Q2
Atomic and Molecular Physics, and Optics	2009	Q2
Atomic and Molecular Physics, and Optics	2010	Q2
Atomic and Molecular Physics, and Optics	2011	Q2
Atomic and Molecular Physics, and Optics	2012	Q2
Atomic and Molecular Physics, and Optics	2013	Q2
Atomic and Molecular Physics, and Optics	2014	Q2
Atomic and Molecular Physics, and Optics	2015	Q2
Atomic and Molecular Physics, and Optics	2016	Q2
Atomic and Molecular Physics, and Optics	2017	Q2
Atomic and Molecular Physics, and Optics	2018	Q2
Atomic and Molecular Physics, and Optics	2019	Q2
Atomic and Molecular Physics, and Optics	2020	Q2
Atomic and Molecular Physics, and Optics	2021	Q2
Atomic and Molecular Physics, and Optics	2022	Q2
Atomic and Molecular Physics, and Optics	2023	Q2
Condensed Matter Physics	1999	Q2
Condensed Matter Physics	2000	Q2
Condensed Matter Physics	2001	Q2
Condensed Matter Physics	2002	Q2
Condensed Matter Physics	2003	Q2
Condensed Matter Physics	2004	Q2
Condensed Matter Physics	2005	Q2
Condensed Matter Physics	2006	Q2
Condensed Matter Physics	2007	Q2
Condensed Matter Physics	2008	Q2
Condensed Matter Physics	2009	Q2
Condensed Matter Physics	2010	Q2
Condensed Matter Physics	2011	Q2
Condensed Matter Physics	2012	Q2
Condensed Matter Physics	2013	Q2
Condensed Matter Physics	2014	Q2
Condensed Matter Physics	2015	Q2
Condensed Matter Physics	2016	Q2
Condensed Matter Physics	2017	Q2
Condensed Matter Physics	2018	Q2
Condensed Matter Physics	2019	Q2
Condensed Matter Physics	2020	Q2
Condensed Matter Physics	2021	Q2
Condensed Matter Physics	2022	Q2
Condensed Matter Physics	2023	Q2
Electronic, Optical and Magnetic Materials	1999	Q2
Electronic, Optical and Magnetic Materials	2000	Q2
Electronic, Optical and Magnetic Materials	2001	Q2
Electronic, Optical and Magnetic Materials	2002	Q2
Electronic, Optical and Magnetic Materials	2003	Q2
Electronic, Optical and Magnetic Materials	2004	Q2
Electronic, Optical and Magnetic Materials	2005	Q2
Electronic, Optical and Magnetic Materials	2006	Q2
Electronic, Optical and Magnetic Materials	2007	Q2
Electronic, Optical and Magnetic Materials	2008	Q2
Electronic, Optical and Magnetic Materials	2009	Q2
Electronic, Optical and Magnetic Materials	2010	Q2
Electronic, Optical and Magnetic Materials	2011	Q2
Electronic, Optical and Magnetic Materials	2012	Q2
Electronic, Optical and Magnetic Materials	2013	Q2
Electronic, Optical and Magnetic Materials	2014	Q2
Electronic, Optical and Magnetic Materials	2015	Q2
Electronic, Optical and Magnetic Materials	2016	Q2
Electronic, Optical and Magnetic Materials	2017	Q2
Electronic, Optical and Magnetic Materials	2018	Q2
Electronic, Optical and Magnetic Materials	2019	Q2
Electronic, Optical and Magnetic Materials	2020	Q2
Electronic, Optical and Magnetic Materials	2021	Q2
Electronic, Optical and Magnetic Materials	2022	Q2
Electronic, Optical and Magnetic Materials	2023	Q2
Nanoscience and Nanotechnology	1999	Q2
Nanoscience and Nanotechnology	2000	Q2
Nanoscience and Nanotechnology	2001	Q2
Nanoscience and Nanotechnology	2002	Q3
Nanoscience and Nanotechnology	2003	Q3
Nanoscience and Nanotechnology	2004	Q3
Nanoscience and Nanotechnology	2005	Q3
Nanoscience and Nanotechnology	2006	Q3
Nanoscience and Nanotechnology	2007	Q3
Nanoscience and Nanotechnology	2008	Q3
Nanoscience and Nanotechnology	2009	Q2
Nanoscience and Nanotechnology	2010	Q2
Nanoscience and Nanotechnology	2011	Q2
Nanoscience and Nanotechnology	2012	Q2
Nanoscience and Nanotechnology	2013	Q2
Nanoscience and Nanotechnology	2014	Q2
Nanoscience and Nanotechnology	2015	Q2
Nanoscience and Nanotechnology	2016	Q2
Nanoscience and Nanotechnology	2017	Q2
Nanoscience and Nanotechnology	2018	Q2
Nanoscience and Nanotechnology	2019	Q2
Nanoscience and Nanotechnology	2020	Q2
Nanoscience and Nanotechnology	2021	Q2
Nanoscience and Nanotechnology	2022	Q2
Nanoscience and Nanotechnology	2023	Q2

SJR

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.

Year	SJR
1999	0.674
2000	0.774
2001	0.857
2002	0.835
2003	0.768
2004	0.755
2005	0.732
2006	0.664
2007	0.637
2008	0.701
2009	0.697
2010	0.766
2011	0.694
2012	0.717
2013	0.683
2014	0.684
2015	0.601
2016	0.557
2017	0.595
2018	0.538
2019	0.566
2020	0.581
2021	0.566
2022	0.559
2023	0.529

Total Documents

Evolution of the number of published documents. All types of documents are considered, including citable and non citable documents.

Year	Documents
1999	64
2000	479
2001	288
2002	622
2003	602
2004	689
2005	433
2006	505
2007	293
2008	740
2009	350
2010	665
2011	353
2012	318
2013	268
2014	361
2015	402
2016	433
2017	368
2018	344
2019	403
2020	511
2021	453
2022	384
2023	259

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 document	Year	Value
Cites / Doc. (4 years)	1999	0.569
Cites / Doc. (4 years)	2000	0.791
Cites / Doc. (4 years)	2001	0.852
Cites / Doc. (4 years)	2002	1.105
Cites / Doc. (4 years)	2003	0.992
Cites / Doc. (4 years)	2004	0.888
Cites / Doc. (4 years)	2005	1.001
Cites / Doc. (4 years)	2006	0.991
Cites / Doc. (4 years)	2007	0.874
Cites / Doc. (4 years)	2008	1.116
Cites / Doc. (4 years)	2009	1.088
Cites / Doc. (4 years)	2010	1.384
Cites / Doc. (4 years)	2011	1.557
Cites / Doc. (4 years)	2012	1.549
Cites / Doc. (4 years)	2013	1.887
Cites / Doc. (4 years)	2014	1.918
Cites / Doc. (4 years)	2015	2.035
Cites / Doc. (4 years)	2016	2.196
Cites / Doc. (4 years)	2017	2.317
Cites / Doc. (4 years)	2018	2.618
Cites / Doc. (4 years)	2019	2.869
Cites / Doc. (4 years)	2020	3.032
Cites / Doc. (4 years)	2021	3.217
Cites / Doc. (4 years)	2022	3.155
Cites / Doc. (4 years)	2023	3.037
Cites / Doc. (3 years)	1999	0.569
Cites / Doc. (3 years)	2000	0.791
Cites / Doc. (3 years)	2001	0.894
Cites / Doc. (3 years)	2002	1.182
Cites / Doc. (3 years)	2003	0.976
Cites / Doc. (3 years)	2004	0.950
Cites / Doc. (3 years)	2005	0.980
Cites / Doc. (3 years)	2006	1.052
Cites / Doc. (3 years)	2007	0.959
Cites / Doc. (3 years)	2008	1.195
Cites / Doc. (3 years)	2009	1.118
Cites / Doc. (3 years)	2010	1.599
Cites / Doc. (3 years)	2011	1.491
Cites / Doc. (3 years)	2012	1.803
Cites / Doc. (3 years)	2013	1.823
Cites / Doc. (3 years)	2014	2.149
Cites / Doc. (3 years)	2015	2.060
Cites / Doc. (3 years)	2016	2.245
Cites / Doc. (3 years)	2017	2.379
Cites / Doc. (3 years)	2018	2.772
Cites / Doc. (3 years)	2019	3.112
Cites / Doc. (3 years)	2020	3.341
Cites / Doc. (3 years)	2021	3.262
Cites / Doc. (3 years)	2022	3.260
Cites / Doc. (3 years)	2023	3.217
Cites / Doc. (2 years)	1999	0.569
Cites / Doc. (2 years)	2000	0.831
Cites / Doc. (2 years)	2001	0.948
Cites / Doc. (2 years)	2002	1.176
Cites / Doc. (2 years)	2003	1.090
Cites / Doc. (2 years)	2004	0.883
Cites / Doc. (2 years)	2005	1.022
Cites / Doc. (2 years)	2006	1.229
Cites / Doc. (2 years)	2007	0.892
Cites / Doc. (2 years)	2008	1.187
Cites / Doc. (2 years)	2009	1.263
Cites / Doc. (2 years)	2010	1.426
Cites / Doc. (2 years)	2011	1.728
Cites / Doc. (2 years)	2012	1.659
Cites / Doc. (2 years)	2013	2.092
Cites / Doc. (2 years)	2014	2.143
Cites / Doc. (2 years)	2015	2.021
Cites / Doc. (2 years)	2016	2.301
Cites / Doc. (2 years)	2017	2.316
Cites / Doc. (2 years)	2018	3.024
Cites / Doc. (2 years)	2019	3.591
Cites / Doc. (2 years)	2020	3.205
Cites / Doc. (2 years)	2021	3.246
Cites / Doc. (2 years)	2022	3.507
Cites / Doc. (2 years)	2023	3.111

Total Cites

Self-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.

Cites	Year	Value
Self Cites	1999	4
Self Cites	2000	28
Self Cites	2001	44
Self Cites	2002	97
Self Cites	2003	71
Self Cites	2004	155
Self Cites	2005	125
Self Cites	2006	147
Self Cites	2007	55
Self Cites	2008	119
Self Cites	2009	82
Self Cites	2010	235
Self Cites	2011	246
Self Cites	2012	205
Self Cites	2013	175
Self Cites	2014	219
Self Cites	2015	163
Self Cites	2016	176
Self Cites	2017	160
Self Cites	2018	203
Self Cites	2019	164
Self Cites	2020	289
Self Cites	2021	252
Self Cites	2022	200
Self Cites	2023	142
Total Cites	1999	170
Total Cites	2000	287
Total Cites	2001	692
Total Cites	2002	982
Total Cites	2003	1355
Total Cites	2004	1437
Total Cites	2005	1874
Total Cites	2006	1814
Total Cites	2007	1561
Total Cites	2008	1471
Total Cites	2009	1719
Total Cites	2010	2212
Total Cites	2011	2617
Total Cites	2012	2467
Total Cites	2013	2435
Total Cites	2014	2018
Total Cites	2015	1951
Total Cites	2016	2315
Total Cites	2017	2845
Total Cites	2018	3335
Total Cites	2019	3563
Total Cites	2020	3725
Total Cites	2021	4104
Total Cites	2022	4456
Total Cites	2023	4336

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.

Cites	Year	Value
External Cites per document	1999	0.555
External Cites per document	2000	0.713
External Cites per document	2001	0.837
External Cites per document	2002	1.065
External Cites per document	2003	0.924
External Cites per document	2004	0.848
External Cites per document	2005	0.914
External Cites per document	2006	0.967
External Cites per document	2007	0.926
External Cites per document	2008	1.098
External Cites per document	2009	1.064
External Cites per document	2010	1.430
External Cites per document	2011	1.351
External Cites per document	2012	1.654
External Cites per document	2013	1.692
External Cites per document	2014	1.916
External Cites per document	2015	1.888
External Cites per document	2016	2.075
External Cites per document	2017	2.245
External Cites per document	2018	2.603
External Cites per document	2019	2.969
External Cites per document	2020	3.082
External Cites per document	2021	3.062
External Cites per document	2022	3.113
External Cites per document	2023	3.111
Cites per document	1999	0.569
Cites per document	2000	0.791
Cites per document	2001	0.894
Cites per document	2002	1.182
Cites per document	2003	0.976
Cites per document	2004	0.950
Cites per document	2005	0.980
Cites per document	2006	1.052
Cites per document	2007	0.959
Cites per document	2008	1.195
Cites per document	2009	1.118
Cites per document	2010	1.599
Cites per document	2011	1.491
Cites per document	2012	1.803
Cites per document	2013	1.823
Cites per document	2014	2.149
Cites per document	2015	2.060
Cites per document	2016	2.245
Cites per document	2017	2.379
Cites per document	2018	2.772
Cites per document	2019	3.112
Cites per document	2020	3.341
Cites per document	2021	3.262
Cites per document	2022	3.260
Cites per document	2023	3.217

% 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.

Year	International Collaboration
1999	23.44
2000	35.28
2001	31.25
2002	37.78
2003	30.40
2004	32.08
2005	24.25
2006	29.70
2007	22.53
2008	29.32
2009	19.14
2010	20.00
2011	15.30
2012	23.58
2013	18.66
2014	18.01
2015	25.37
2016	26.33
2017	21.47
2018	25.00
2019	23.08
2020	22.90
2021	23.84
2022	20.31
2023	20.08

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.

Documents	Year	Value
Non-citable documents	1999	0
Non-citable documents	2000	0
Non-citable documents	2001	1
Non-citable documents	2002	2
Non-citable documents	2003	3
Non-citable documents	2004	9
Non-citable documents	2005	11
Non-citable documents	2006	12
Non-citable documents	2007	9
Non-citable documents	2008	11
Non-citable documents	2009	12
Non-citable documents	2010	9
Non-citable documents	2011	7
Non-citable documents	2012	5
Non-citable documents	2013	6
Non-citable documents	2014	4
Non-citable documents	2015	4
Non-citable documents	2016	2
Non-citable documents	2017	2
Non-citable documents	2018	2
Non-citable documents	2019	3
Non-citable documents	2020	3
Non-citable documents	2021	4
Non-citable documents	2022	9
Non-citable documents	2023	8
Citable documents	1999	299
Citable documents	2000	363
Citable documents	2001	773
Citable documents	2002	829
Citable documents	2003	1386
Citable documents	2004	1503
Citable documents	2005	1902
Citable documents	2006	1712
Citable documents	2007	1618
Citable documents	2008	1220
Citable documents	2009	1526
Citable documents	2010	1374
Citable documents	2011	1748
Citable documents	2012	1363
Citable documents	2013	1330
Citable documents	2014	935
Citable documents	2015	943
Citable documents	2016	1029
Citable documents	2017	1194
Citable documents	2018	1201
Citable documents	2019	1142
Citable documents	2020	1112
Citable documents	2021	1254
Citable documents	2022	1358
Citable documents	2023	1340

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.

Documents	Year	Value
Uncited documents	1999	205
Uncited documents	2000	229
Uncited documents	2001	460
Uncited documents	2002	448
Uncited documents	2003	814
Uncited documents	2004	861
Uncited documents	2005	1103
Uncited documents	2006	935
Uncited documents	2007	923
Uncited documents	2008	619
Uncited documents	2009	846
Uncited documents	2010	633
Uncited documents	2011	855
Uncited documents	2012	587
Uncited documents	2013	577
Uncited documents	2014	303
Uncited documents	2015	293
Uncited documents	2016	324
Uncited documents	2017	381
Uncited documents	2018	369
Uncited documents	2019	328
Uncited documents	2020	274
Uncited documents	2021	300
Uncited documents	2022	339
Uncited documents	2023	328
Cited documents	1999	94
Cited documents	2000	134
Cited documents	2001	314
Cited documents	2002	383
Cited documents	2003	575
Cited documents	2004	651
Cited documents	2005	810
Cited documents	2006	789
Cited documents	2007	704
Cited documents	2008	612
Cited documents	2009	692
Cited documents	2010	750
Cited documents	2011	900
Cited documents	2012	781
Cited documents	2013	759
Cited documents	2014	636
Cited documents	2015	654
Cited documents	2016	707
Cited documents	2017	815
Cited documents	2018	834
Cited documents	2019	817
Cited documents	2020	841
Cited documents	2021	958
Cited documents	2022	1028
Cited documents	2023	1020

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