R. Armitage

1.6k total citations
45 papers, 1.4k citations indexed

About

R. Armitage is a scholar working on Condensed Matter Physics, Electrical and Electronic Engineering and Electronic, Optical and Magnetic Materials. According to data from OpenAlex, R. Armitage has authored 45 papers receiving a total of 1.4k indexed citations (citations by other indexed papers that have themselves been cited), including 38 papers in Condensed Matter Physics, 24 papers in Electrical and Electronic Engineering and 23 papers in Electronic, Optical and Magnetic Materials. Recurrent topics in R. Armitage's work include GaN-based semiconductor devices and materials (37 papers), Ga2O3 and related materials (23 papers) and Semiconductor materials and devices (16 papers). R. Armitage is often cited by papers focused on GaN-based semiconductor devices and materials (37 papers), Ga2O3 and related materials (23 papers) and Semiconductor materials and devices (16 papers). R. Armitage collaborates with scholars based in United States, Japan and Germany. R. Armitage's co-authors include E. R. Weber, Thomas J. Richardson, Qing Yang, Jonathan Slack, M. Rubin, B. Farangis, Robert Kostecki, Kenji Tsubaki, Hideki Hirayama and H. Feick and has published in prestigious journals such as Applied Physics Letters, Journal of Applied Physics and Surface Science.

In The Last Decade

R. Armitage

41 papers receiving 1.3k citations

Peers

Countries citing papers authored by R. Armitage

Since Specialization

Citations

This map shows the geographic impact of R. Armitage's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by R. Armitage with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites R. Armitage more than expected).

Fields of papers citing papers by R. Armitage

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by R. Armitage. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by R. Armitage. The network helps show where R. Armitage may publish in the future.

Co-authorship network of co-authors of R. Armitage

This figure shows the co-authorship network connecting the top 25 collaborators of R. Armitage. A scholar is included among the top collaborators of R. Armitage based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with R. Armitage. R. Armitage is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Impact of quantum well thickness on efficiency loss in InGaN/GaN LEDs: Challenges for thin-well designs 2025 ·Applied Physics Letters ·(unknown), Nick Pant, Sheikh Ifatur Rahman, R. Armitage, Siddharth Rajan, Emmanouil Kioupakis, Daniel Feezell	0
2	True‐Red InGaN Light‐Emitting Diodes for Display Applications 2024 ·physica status solidi (RRL) - Rapid Research Letters ·R. Armitage, (unknown), Mark Holmes, (unknown)	16
3	Recent advances in microLED performance: efficiency, gamut, and reliability 2024 ·Brendan Moran, Mark Holmes, (unknown), R. Armitage, (unknown), Heejin Kim, (unknown), O.B. Shchekin, Hossein Lotfi	0
4	29‐5: Invited Paper: Progress in MicroLEDs: Materials, Device Performance, and Reliability 2023 ·SID Symposium Digest of Technical Papers ·Brendan Moran, Mark Holmes, (unknown), R. Armitage, (unknown), Hossein Lotfi, Theodore D. Chung, Heejin Kim, Hisashi Masui, (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), O.B. Shchekin	2
5	Demonstration of multi-active region p-down green LEDs with high quantum efficiency 2023 ·Japanese Journal of Applied Physics ·Sheikh Ifatur Rahman, R. Armitage, Siddharth Rajan	1
6	MicroLED architectures for low power wearable displays 2022 ·(unknown), (unknown), (unknown), R. Armitage, (unknown), (unknown), Heejin Kim, Srinivasa Banna, (unknown), (unknown), (unknown), (unknown), (unknown), (unknown)	3
7	Multicolour luminescence from InGaN quantum wells grown over GaN nanowire arrays by molecular-beam epitaxy 2010 ·Nanotechnology ·R. Armitage, Kenji Tsubaki	82
8	Zincblende and wurtzite phases in InN epilayers and their respective band transitions 2006 ·Journal of Crystal Growth ·P. Specht, Johnny C. Ho, X.Z. Xu, R. Armitage, E. R. Weber, Rolf Erni, C. Kisielowski	7
9	Structure Analysis of ZrB₂(0001) Surface Prepared by ex situ HF Treatment 2006 ·Japanese Journal of Applied Physics ·Hirofumi Suto, Shunjiro Fujii, (unknown), R. Armitage, Jun Suda, Tsunenobu Kimoto, Shin‐ichi Honda, Mitsuhiro Katayama	5
10	Band transitions in wurtzite GaN and InN determined by valence electron energy loss spectroscopy 2005 ·Solid State Communications ·P. Specht, Johnny C. Ho, X.Z. Xu, R. Armitage, E. R. Weber, Rolf Erni, Christian Kisielowski	45
11	Analysis of the carbon-related “blue” luminescence in GaN 2005 ·Journal of Applied Physics ·R. Armitage, Qing Yang, E. R. Weber	76
12	Electrical and optical properties of carbon-related defects in GaN 2004 ·R. Armitage, Quankui Yang, E. R. Weber, Z.-Q. Fang, S. Hautakangas, K. Saarinen	0
13	Effects of electron concentration on the optical absorption edge of InN 2004 ·Applied Physics Letters ·Junqiao Wu, W. Walukiewicz, S. X. Li, R. Armitage, Johnny C. Ho, E. R. Weber, E. E. Häller, Hai Lu, W. J. Schaff, A. Barcz, R. Jakieła	198
14	Metastability in the excitonic luminescence of electron‐irradiated GaN 2003 ·Physica status solidi. C, Conferences and critical reviews/Physica status solidi. C, Current topics in solid state physics ·Qing Yang, H. Feick, R. Armitage, E. R. Weber	1
15	Contributions from gallium vacancies and carbon-related defects to the “yellow luminescence” in GaN 2003 ·Applied Physics Letters ·R. Armitage, (unknown), Qing Yang, H. Feick, J. Gebauer, E. R. Weber, S. Hautakangas, K. Saarinen	152
16	Evaluation of CCl4 and CS2 as carbon doping sources in MBE growth of GaN 2003 ·Journal of Crystal Growth ·R. Armitage, Qing Yang, H. Feick, E. R. Weber	8
17	Optical and electrical properties of semi-insulating GaN:C grown by MBE 2002 ·MRS Proceedings ·R. Armitage, Qing Yang, H. Feick, (unknown), Jongwoo Lim, E. R. Weber	3
18	Switchable mirrors based on nickel–magnesium films 2001 ·Applied Physics Letters ·Thomas J. Richardson, Jonathan Slack, R. Armitage, Robert Kostecki, B. Farangis, M. Rubin	311
19	Effect of hydrogen insertion on the optical properties of PD-coated \nmagnesium lanthanides 1998 ·eScholarship (California Digital Library) ·K. von Rottkay, M. Rubín, (unknown), R. Armitage, Thomas J. Richardson, Jonathan Slack, Peter A. Duine	32
20	The muon component of cosmic-ray air showers in the range 10¹⁷-10¹⁸eV 1987 ·Journal of Physics G Nuclear Physics ·R. Armitage, (unknown), W. F. Nash, C. Saltmarsh, A. J. Sephton, (unknown), (unknown)	5

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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