E. J. O’Sullivan

4.8k citations

68 papers · 3.7k indexed · 2 hit papers · h-index 28

Atomic and Molecular Physics, and Optics top 1%
Electrical and Electronic Engineering top 2%
Electronic, Optical and Magnetic Materials top 2%
Materials Chemistry top 5%
Condensed Matter Physics top 2%

Co-authors: P. L. Trouilloud S. Brown David W. Abraham L.D. Burke J. Nowak D. C. Worledge J. Z. Sun G. Hu
Topics: Magnetic properties of thin films (29 papers)Advanced Memory and Neural Computing (14 papers)Magnetic Properties and Applications (10 papers)
Cited by: Atomic and Molecular Physics, and Optics Electronic, Optical and Magnetic Materials Condensed Matter Physics
Journals: Physical Review Letters Applied Physics Letters Journal of Applied Physics
Partner nations: United States Ireland Switzerland

In The Last Decade

E. J. O’Sullivan

67 papers receiving 3.5k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Exchange-biased magnetic tunnel junctions and application to nonvolatile magnetic random access memory (invited)

1999 915 citations E. J. O’Sullivan, S. Brown et al. Journal of Applied Physics profile →
Spin torque switching of perpendicular Ta∣CoFeB∣MgO-based magnetic tunnel junctions

2011 560 citations D. C. Worledge, G. Hu et al. Applied Physics Letters profile →

Peers

Countries citing papers authored by E. J. O’Sullivan

Since Specialization

Citations

This map shows the geographic impact of E. J. O’Sullivan'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 E. J. O’Sullivan with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites E. J. O’Sullivan more than expected).

Fields of papers citing papers by E. J. O’Sullivan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by E. J. O’Sullivan. 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 E. J. O’Sullivan. The network helps show where E. J. O’Sullivan may publish in the future.

Co-authorship network of co-authors of E. J. O’Sullivan

This figure shows the co-authorship network connecting the top 25 collaborators of E. J. O’Sullivan. A scholar is included among the top collaborators of E. J. O’Sullivan 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 E. J. O’Sullivan. E. J. O’Sullivan is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

#	Work	Indexed citations
1	Autophagy-dependent cell death and immune responses induced by heteroleptic copper(II), manganese(II), and silver(I) complexes containing dicarboxylate and 1,10-phenanthroline ligands: novel insights from in vitro and in vivo models 2025 ·BioMetals ·E. J. O’Sullivan,Denis O′Shea,Michael Devereux,Kevin Kavanagh,Orla Howe	0
2	Apoptotic cell death induced by copper (II), manganese (II) and silver (I) complexes containing bridging dicarboxylate and 1,10-phenanthroline ligands: one of the multi-modes of anticancer activity? 2025 ·BioMetals ·E. J. O’Sullivan,Denis O′Shea,Michael Devereux,Orla Howe	1
3	Bayesian Optimization Strategies for Electrochemical Technology Development 2024 ·ECS Meeting Abstracts ·E. J. O’Sullivan	1
4	Dependence of Voltage and Size on Write Error Rates in Spin-Transfer Torque Magnetic Random-Access Memory 2016 ·IEEE Magnetics Letters ·J. Nowak,(unknown),J. Z. Sun,G. Hu,(unknown),(unknown),Anthony Annunziata,G. Lauer,(unknown),E. J. O’Sullivan,P. L. Trouilloud,Younghyun Kim,D. C. Worledge	109
5	STT-MRAM with double magnetic tunnel junctions 2015 ·G. Hu,(unknown),J. Nowak,J. Z. Sun,(unknown),Anthony Annunziata,S. Brown,(unknown),(unknown),G. Lauer,(unknown),Nathan Marchack,(unknown),E. J. O’Sullivan,(unknown),M. C. Reuter,R. P. Robertazzi,P. L. Trouilloud,Yu Zhu,D. C. Worledge	64
6	Ultra-high-Q air-core slab inductors for on-chip power conversion 2014 ·Naigang Wang,D. Goren,E. J. O’Sullivan,Xin Zhang,W. J. Gallagher,(unknown),Leland Chang	4
7	Limits to On-Chip Power Conversion With Thin Film Inductors 2013 ·IEEE Transactions on Magnetics ·(unknown),Naigang Wang,E. J. O’Sullivan,Bucknell C. Webb,Lubomyr T. Romankiw,R.E. Fontana,Gary M. Decad,P. T. Gallagher	9
8	Spin torque switching of 20 nm magnetic tunnel junctions with perpendicular anisotropy 2012 ·Applied Physics Letters ·M. Gajek,J. Nowak,J. Z. Sun,P. L. Trouilloud,E. J. O’Sullivan,David W. Abraham,M. C. Gaidis,G. Hu,S. Brown,Yanyan Zhu,R. P. Robertazzi,W. J. Gallagher,D. C. Worledge	226
9	Recent Advances in Spin Torque MRAM 2012 ·D. C. Worledge,M. Gajek,David W. Abraham,S. Brown,M. C. Gaidis,G. Hu,J. Nowak,E. J. O’Sullivan,R. P. Robertazzi,J. Z. Sun,P. L. Trouilloud,W. J. Gallagher	3
10	A 2.5D Integrated Voltage Regulator Using Coupled-Magnetic-Core Inductors on Silicon Interposer 2012 ·IEEE Journal of Solid-State Circuits ·Noah Sturcken,E. J. O’Sullivan,Naigang Wang,(unknown),Bucknell C. Webb,Lubomyr T. Romankiw,Michele Petracca,Ryan Davies,R.E. Fontana,Gary M. Decad,Ioannis Kymissis,Angel V. Peterchev,Luca P. Carloni,William J. Gallagher,Kenneth L. Shepard	141
11	Demonstration of ultralow bit error rates for spin-torque magnetic random-access memory with perpendicular magnetic anisotropy 2011 ·IEEE Magnetics Letters ·J. Nowak,R. P. Robertazzi,J. Z. Sun,G. Hu,David W. Abraham,P. L. Trouilloud,S. Brown,M. C. Gaidis,E. J. O’Sullivan,W. J. Gallagher,D. C. Worledge	66
12	Spin torque switching of perpendicular Ta∣CoFeB∣MgO-based magnetic tunnel junctionsbreakdown → 2011 ·Applied Physics Letters ·D. C. Worledge,G. Hu,David W. Abraham,J. Z. Sun,P. L. Trouilloud,J. Nowak,S. Brown,M. C. Gaidis,E. J. O’Sullivan,R. P. Robertazzi	560
13	Effect of subvolume excitation and spin-torque efficiency on magnetic switching 2011 ·Physical Review B ·J. Z. Sun,R. P. Robertazzi,J. Nowak,P. L. Trouilloud,G. Hu,David W. Abraham,M. C. Gaidis,S. Brown,E. J. O’Sullivan,W. J. Gallagher,D. C. Worledge	128
14	A three-terminal spin-torque-driven magnetic switch 2009 ·Applied Physics Letters ·J. Z. Sun,M. C. Gaidis,E. J. O’Sullivan,Eric Joseph,G. Hu,David W. Abraham,J. Nowak,P. L. Trouilloud,Yu Lu,S. Brown,D. C. Worledge,W. J. Gallagher	58
15	Two-level BEOL processing for rapid iteration in MRAM development 2006 ·IBM Journal of Research and Development ·M. C. Gaidis,E. J. O’Sullivan,J. Nowak,Yuan Lü,S. Kanakasabapathy,P. L. Trouilloud,D. C. Worledge,S. Assefa,K. R. Milkove,(unknown),W. J. Gallagher	26
16	Materials and devices for reduced switching field toggle magnetic random access memory 2006 ·Journal of Applied Physics ·D. C. Worledge,P. L. Trouilloud,M. C. Gaidis,Yuan Lü,David W. Abraham,S. Assefa,S. Brown,E. Galligan,S. Kanakasabapathy,J. Nowak,E. J. O’Sullivan,R. P. Robertazzi,(unknown),W. J. Gallagher	13
17	Electroless Deposition of NiB on 15 Inch Glass Substrates for the Fabrication of Transistor Gates for Liquid Crystal Displays 2003 ·Langmuir ·Emmanuel Delamarche,Matthias Geißler,(unknown),W. S. Graham,(unknown),John Flake,P. M. Fryer,Ronald Nunes,Bruno Michel,E. J. O’Sullivan,Heinz Schmid,Heiko Wolf,R. Wisnieff	35
18	Characterization of PdSn catalysts for electroless metal deposition 1988 ·IBM Journal of Research and Development ·E. J. O’Sullivan,Jean Horkans,James R. White,J.M. Roldan	18
19	Oxygen gas evolution on hydrous oxides — An example of three-dimensional electrocatalysis? 1981 ·Journal of Electroanalytical Chemistry ·L.D. Burke,E. J. O’Sullivan	105
20	Enhanced oxygen evolution at an activated rhodium anode in base 1979 ·Journal of Electroanalytical Chemistry ·L.D. Burke,E. J. O’Sullivan	21

About E. J. O’Sullivan

E. J. O’Sullivan is a scholar working on Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials and Condensed Matter Physics, having authored 68 papers that have together received 3.7k indexed citations. Recurring topics across this work include Magnetic properties of thin films (29 papers), Advanced Memory and Neural Computing (14 papers) and Magnetic Properties and Applications (10 papers). The work is most often cited by research in Atomic and Molecular Physics, and Optics (2.2k citations), Electronic, Optical and Magnetic Materials (1.3k citations) and Condensed Matter Physics (753 citations). E. J. O’Sullivan has collaborated with scholars based in United States, Ireland and Switzerland. Frequent co-authors include P. L. Trouilloud, S. Brown, David W. Abraham, L.D. Burke, J. Nowak, D. C. Worledge, J. Z. Sun, G. Hu, M. C. Gaidis and R. P. Robertazzi. Their work appears in journals such as Physical Review Letters, Applied Physics Letters and Journal of Applied Physics.

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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