Johnston, Roy L.
University of Birmingham,
United Kingdom
2025 Rank: 31014
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Physics & Astronomy
SubField 1:
Chemical Physics
SubField 2:
Nanoscience & Nanotechnology
Rank in SubField 1: 658 out of 115551 Researchers
Data For The Year: 2025
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 31014 | 27093 |
| Total Cites | 11645 | 14268 |
| H-index | 49 | 58 |
| Hm-index | 28 | 31 |
| Number of Single Authored Papers | 4 | 4 |
| Total Cites to Single Authored Papers | 606 | 685 |
| Number of Single+First Authored Papers | 20 | 20 |
| Total Cites to Single+First Authored Papers | 1168 | 1317 |
| Number of Single+First+Last Authored Papers | 152 | 152 |
| Total Cites to Single+First+Last Authored Papers | 8449 | 9797 |
| Composite Score | 3 | 3 |
| Number of Distinct Citing Papers | 8204 | 8862 |
| Ratio of Total Citations to Distinct Citing Papers | 1.42 | 1.61 |
| Self-Citation Percentage |
18.38%
|
|
Johnston, Roy L.
University of Birmingham,
United Kingdom
2024 Rank: 30782
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Physics & Astronomy
SubField 1:
Chemical Physics
SubField 2:
Nanoscience & Nanotechnology
Rank in SubField 1: 680 out of 106831 Researchers
Data For The Year: 2024
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 30782 | 26259 |
| Total Cites | 11095 | 13678 |
| H-index | 47 | 56 |
| Hm-index | 27 | 31 |
| Number of Single Authored Papers | 4 | 4 |
| Total Cites to Single Authored Papers | 574 | 652 |
| Number of Single+First Authored Papers | 20 | 20 |
| Total Cites to Single+First Authored Papers | 1113 | 1261 |
| Number of Single+First+Last Authored Papers | 152 | 152 |
| Total Cites to Single+First+Last Authored Papers | 8028 | 9366 |
| Composite Score | 3 | 3 |
| Number of Distinct Citing Papers | 7756 | 8392 |
| Ratio of Total Citations to Distinct Citing Papers | 1.43 | 1.63 |
| Self-Citation Percentage |
18.88%
|
|
Johnston, Roy L.
University of Birmingham,
United Kingdom
2023 Rank: 30200
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Physics & Astronomy
SubField 1:
Chemical Physics
SubField 2:
Nanoscience & Nanotechnology
Rank in SubField 1: 676 out of 100804 Researchers
Data For The Year: 2023
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 30200 | 25884 |
| Total Cites | 10574 | 13026 |
| H-index | 45 | 54 |
| Hm-index | 27 | 30 |
| Number of Single Authored Papers | 4 | 4 |
| Total Cites to Single Authored Papers | 547 | 625 |
| Number of Single+First Authored Papers | 20 | 20 |
| Total Cites to Single+First Authored Papers | 1057 | 1205 |
| Number of Single+First+Last Authored Papers | 152 | 152 |
| Total Cites to Single+First+Last Authored Papers | 7559 | 8840 |
| Composite Score | 3 | 3 |
| Number of Distinct Citing Papers | 7322 | 7914 |
| Ratio of Total Citations to Distinct Citing Papers | 1.44 | 1.65 |
| Self-Citation Percentage |
18.82%
|
|
Johnston, Roy L.
University of Birmingham,
United Kingdom
2022 Rank: 32239
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Physics & Astronomy
SubField 1:
Chemical Physics
SubField 2:
Nanoscience & Nanotechnology
Rank in SubField 1: 741 out of 95895 Researchers
Data For The Year: 2022
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 32239 | 27588 |
| Total Cites | 9449 | 11751 |
| H-index | 42 | 51 |
| Hm-index | 25 | 28 |
| Number of Single Authored Papers | 4 | 4 |
| Total Cites to Single Authored Papers | 494 | 570 |
| Number of Single+First Authored Papers | 20 | 20 |
| Total Cites to Single+First Authored Papers | 955 | 1077 |
| Number of Single+First+Last Authored Papers | 149 | 149 |
| Total Cites to Single+First+Last Authored Papers | 6643 | 7823 |
| Composite Score | 3 | 3 |
| Number of Distinct Citing Papers | 6653 | 7216 |
| Ratio of Total Citations to Distinct Citing Papers | 1.42 | 1.63 |
| Self-Citation Percentage |
19.59%
|
|
Johnston, Roy L.
University of Birmingham,
United Kingdom
2021 Rank: 31208
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Physics & Astronomy
SubField 1:
Chemical Physics
SubField 2:
Nanoscience & Nanotechnology
Rank in SubField 1: 725 out of 92738 Researchers
Data For The Year: 2021
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 31208 | 26463 |
| Total Cites | 9290 | 11588 |
| H-index | 42 | 51 |
| Hm-index | 25 | 28 |
| Number of Single Authored Papers | 4 | 4 |
| Total Cites to Single Authored Papers | 470 | 548 |
| Number of Single+First Authored Papers | 20 | 20 |
| Total Cites to Single+First Authored Papers | 917 | 1041 |
| Number of Single+First+Last Authored Papers | 151 | 151 |
| Total Cites to Single+First+Last Authored Papers | 6573 | 7768 |
| Composite Score | 3 | 3 |
| Number of Distinct Citing Papers | 6492 | 7045 |
| Ratio of Total Citations to Distinct Citing Papers | 1.43 | 1.64 |
| Self-Citation Percentage |
19.83%
|
|
Johnston, Roy L.
University of Birmingham,
United Kingdom
2020 Rank: 31216
Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:
Physics & Astronomy
SubField 1:
Chemical Physics
SubField 2:
Nanoscience & Nanotechnology
Rank in SubField 1: 714 out of 73903 Researchers
Data For The Year: 2020
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 31216 | 26338 |
| Total Cites | 8386 | 10615 |
| H-index | 41 | 49 |
| Hm-index | 23 | 27 |
| Number of Single Authored Papers | 5 | 5 |
| Total Cites to Single Authored Papers | 429 | 507 |
| Number of Single+First Authored Papers | 21 | 21 |
| Total Cites to Single+First Authored Papers | 852 | 977 |
| Number of Single+First+Last Authored Papers | 150 | 150 |
| Total Cites to Single+First+Last Authored Papers | 5849 | 7004 |
| Composite Score | 3 | 3 |
| Number of Distinct Citing Papers | 5860 | 6389 |
| Ratio of Total Citations to Distinct Citing Papers | 1.43 | 1.66 |
| Self-Citation Percentage |
21.00%
|
|
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