Philip J. Ryan

7.6k citations
120 papers · 4.8k · 1 hit paper · h-index 36

Impact in

Papers in

Co-authors
N. J. McKenzie (7 shared papers)Jong‐Woo Kim (67 shared papers)Ian D. Moore (1 shared paper)Paul E. Gessler (1 shared paper)Evguenia Karapetrova (14 shared papers)Steven J. May (5 shared papers)Anand Bhattacharya (3 shared papers)J. W. Freeland (12 shared papers)
Journals
Physical Review Letters (12 papers)Physical Review B (12 papers)Applied Physics Letters (10 papers)Physical review. B. (9 papers)Surface Science (4 papers)
Partner nations
United StatesIrelandChina

In The Last Decade

Philip J. Ryan

116 papers receiving 4.6k citations

Philip J. Ryan's Hit Papers

Soil-landscape modelling and spatial prediction of soil attributes 1995 · 514 citations
5140+10+20Years since publication100200300400500
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if any of the following hold:

  • it has ≥500 total citations;
  • it reaches ≥1.5× the top-1% citation threshold for papers in the same subfield and year (the threshold is the minimum needed to enter the top 1%, not the average within it);
  • it reaches the top citation threshold in at least one of its specific research topics.
  1. 1995 International Journal of Geographical Information Systems

Peers

Philip J. Ryan
Comparison fields: 5 of 116
  • Electronic, Optical and Magnetic Materials 2.2k
  • Condensed Matter Physics 1.4k
  • Soil Science 580
  • Environmental Engineering 834
  • Materials Chemistry 2.4k
Replace C. Schneider with:
C. Schneider Germany
Ohad Levy United States
Enke Liu China
Junfeng Lu China
Graeme R. Blake Netherlands
A. R. Lang United Kingdom
Y. Li China
Zhaosheng Wang China
R.I. Smith United Kingdom
Mats Björk Sweden
Philip J. Ryan relative to C. Schneider Germany C. Schneider's profile →
Citations per field
00.5×2×4×5.4×
C. Schneider · 1×
Citations per year

Countries citing papers authored by Philip J. Ryan

Since Specialization
Citations

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

Fields of papers citing papers by Philip J. Ryan

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Philip J. Ryan. 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 Philip J. Ryan. The network helps show where Philip J. Ryan may publish in the future.

Co-authors

The 25 scholars most cited alongside Philip J. Ryan, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Philip J. Ryan Line = papers co-authored together Philip J. Ryan links everyone, so they are left out of the graph.

All Works

20 of 20 papers shown

Showing the 20 most-cited of 120 papers — load more, or switch the sort, to bring in the rest.

#Work
1
Soil-landscape modelling and spatial prediction of soil attributes
International Journal of Geographical Information Systems ·Paul E. Gessler, Ian D. Moore, N. J. McKenzie, Philip J. Ryan
Hit paper breakdown →		1995514
2
Spatial prediction of soil properties using environmental correlation
Geoderma ·N. J. McKenzie, Philip J. Ryan
1999499
3
A Ferroelectric Oxide Made Directly on Silicon
Science ·Maitri Warusawithana, Cheng Cen, Charles R. Sleasman, J. C. Woicik, Yulan Li, Lena F. Kourkoutis, Jeffrey A. Klug, Hao Li, Philip J. Ryan, Li-Peng Wang, Michael J. Bedzyk, David A. Muller, Long‐Qing Chen, Jeremy Levy, Darrell G. Schlom
2009335
4
Quantifying octahedral rotations in strained perovskite oxide films
Physical Review B ·Steven J. May, Jong‐Woo Kim, James M. Rondinelli, Evguenia Karapetrova, Nicola A. Spaldin, Anand Bhattacharya, Philip J. Ryan
2010271
5
Polar metals by geometric design
Nature ·T. H. Kim, Danilo Puggioni, Yakun Yuan, L. Xie, Hua Zhou, Neil Campbell, Philip J. Ryan, Yongseong Choi, Jong‐Woo Kim, J. J. Patzner, Sangwoo Ryu, J. P. Podkaminer, Julian Irwin, Yandong Ma, Craig J. Fennie, M. S. Rzchowski, Xiaoqing Pan, Venkatraman Gopalan, James M. Rondinelli, Chang‐Beom Eom
2016257
6
Enhanced ordering temperatures in antiferromagnetic manganite superlattices
Nature Materials ·Steven J. May, Philip J. Ryan, J. L. Robertson, Jong‐Woo Kim, Tiffany Santos, Evguenia Karapetrova, J. L. Zarestky, Xiaofang Zhai, S. G. E. te Velthuis, J. N. Eckstein, S. D. Bader, Anand Bhattacharya
2009140
7
Asymmetric Orbital-Lattice Interactions in Ultrathin Correlated Oxide Films
Physical Review Letters ·J. Chakhalian, James M. Rondinelli, Jian Liu, Benjamin Gray, M. Kareev, E. J. Moon, Narayan Prasai, J. L. Cohn, M. Varela, I‐Cheng Tung, Michael J. Bedzyk, S. G. Altendorf, F. Strigari, B. Dąbrowski, L. H. Tjeng, Philip J. Ryan, J. W. Freeland
2011138
8
Phase-Exchange-Driven Wake-Up and Fatigue in Ferroelectric Hafnium Zirconium Oxide Films
ACS Applied Materials & Interfaces ·Shelby S. Fields, Sean W. Smith, Philip J. Ryan, Samantha T. Jaszewski, Ian A. Brummel, Alejandro Salanova, Giovanni Esteves, Steve Wolfley, Michael David Henry, Paul Davids, Jon F. Ihlefeld
2020131
9
Charge Order inLuFe2O4: Antiferroelectric Ground State and Coupling to Magnetism
Physical Review Letters ·Manuel Angst, Raphaël P. Hermann, A. D. Christianson, M. D. Lumsden, C. Lee, Myung‐Hwan Whangbo, Jong‐Woo Kim, Philip J. Ryan, S. E. Nagler, Wei Tian, Rongying Jin, B. C. Sales, David Mandrus
2008110
10
Quantum confinement of Mott electrons in ultrathin LaNiO3/LaAlO3superlattices
Physical Review B ·Jian Liu, Satoshi Okamoto, M. van Veenendaal, M. Kareev, Barbara Gray, Philip J. Ryan, J. W. Freeland, J. Chakhalian
2011110
11
Influence of shallow core-level hybridization on the electronic structure of post-transition-metal oxides studied using soft X-ray emission and absorption
Physical review. B, Condensed matter ·Cormac McGuinness, Cristian Stagarescu, Philip J. Ryan, James E. Downes, Dongfeng Fu, Kevin E. Smith, R.G. Egdell
2003110
12
Atomic-scale control of magnetic anisotropy via novel spin–orbit coupling effect in La 2/3 Sr 1/3 MnO 3 /SrIrO 3 superlattices
Proceedings of the National Academy of Sciences ·Di Yi, Jian Liu, Shang‐Lin Hsu, Lipeng Zhang, Yongseong Choi, Jong‐Woo Kim, Zuhuang Chen, James D. Clarkson, Claudy Rayan Serrao, Elke Arenholz, Philip J. Ryan, Haixuan Xu, R. J. Birgeneau, R. Ramesh
2016108
13
Integrating forest soils information across scales: spatial prediction of soil properties under Australian forests
Forest Ecology and Management ·Philip J. Ryan, N. J. McKenzie, Deborah O'Connell, Andrew Loughhead, P Leppert, David Jacquier, LJ Ashton
200085
14
Control of octahedral rotations in (LaNiO3)n/(SrMnO3)msuperlattices
Physical Review B ·Steven J. May, Cole Smith, Jong‐Woo Kim, Evguenia Karapetrova, Anand Bhattacharya, Philip J. Ryan
201180
15
Strain-mediated metal-insulator transition in epitaxial ultrathin films of NdNiO3
Applied Physics Letters ·Jian Liu, M. Kareev, Barbara Gray, Jong‐Woo Kim, Philip J. Ryan, B. Dąbrowski, J. W. Freeland, J. Chakhalian
201079
16
Reversible control of magnetic interactions by electric field in a single-phase material
Nature Communications ·Philip J. Ryan, (unknown), Turan Birol, Paul Thompson, J. H. Lee, Xianglin Ke, P. S. Normile, Evguenia Karapetrova, P. Schiffer, S. D. Brown, Craig J. Fennie, Darrell G. Schlom
201370
17
IMPACT OF FOREST HARVESTING ON THE HYDRAULIC PROPERTIES OF SURFACE SOIL
Soil Science ·Jie Huang, S. T. Lacey, Philip J. Ryan
199668
18
Use of an expert system to map forest soils from a geographical information system
International Journal of Geographical Information Systems ·Andrew K. Skidmore, Philip J. Ryan, WARWICK DAWES, DAVID SHORT, Emmett M. O’Loughlin
199166
19
Artificial two-dimensional polar metal at room temperature
Nature Communications ·Yanwei Cao, Zhen Wang, Se Young Park, Yakun Yuan, Xiaoran Liu, С. М. Никитин, Hirofumi Akamatsu, M. Kareev, S. Middey, D. Meyers, Paul Thompson, Philip J. Ryan, Padraic Shafer, Alpha T. N’Diaye, Elke Arenholz, Venkatraman Gopalan, Yimei Zhu, Karin M. Rabe, J. Chakhalian
201865
20
Emergent Superstructural Dynamic Order due to Competing Antiferroelectric and Antiferrodistortive Instabilities in BulkEuTiO3
Physical Review Letters ·Jong‐Woo Kim, Paul Thompson, S. D. Brown, P. S. Normile, John A. Schlueter, Andrey Shkabko, Anke Weidenkaff, Philip J. Ryan
201355

About Philip J. Ryan

Philip J. Ryan is a scholar working on Electronic, Optical and Magnetic Materials, Condensed Matter Physics, Materials Chemistry, Atomic and Molecular Physics, and Optics and Electrical and Electronic Engineering, having authored 120 papers that have together received 4.8k indexed citations. Recurring topics across this work include Advanced Condensed Matter Physics (41 papers), Magnetic and transport properties of perovskites and related materials (40 papers), Electronic and Structural Properties of Oxides (33 papers), Multiferroics and related materials (20 papers), Ferroelectric and Piezoelectric Materials (18 papers), Physics of Superconductivity and Magnetism (16 papers), Iron-based superconductors research (12 papers) and Soil Geostatistics and Mapping (10 papers). The work is most often cited by research in Electronic, Optical and Magnetic Materials (2.2k citations), Condensed Matter Physics (1.4k citations), Soil Science (580 citations), Environmental Engineering (834 citations) and Materials Chemistry (2.4k citations). Philip J. Ryan has collaborated with scholars based in United States, Ireland and China. Frequent co-authors include N. J. McKenzie, Jong‐Woo Kim, Ian D. Moore, Paul E. Gessler, Evguenia Karapetrova, Steven J. May, Anand Bhattacharya, J. W. Freeland, Jian Liu and James M. Rondinelli. Their work appears in journals such as Physical Review Letters, Physical Review B, Applied Physics Letters, Physical review. B. and Surface Science.

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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