Alan A. Coelho

7.0k total citations · 4 hit papers
33 papers, 5.8k citations indexed

About

Alan A. Coelho is a scholar working on Materials Chemistry, Radiation and Electronic, Optical and Magnetic Materials. According to data from OpenAlex, Alan A. Coelho has authored 33 papers receiving a total of 5.8k indexed citations (citations by other indexed papers that have themselves been cited), including 29 papers in Materials Chemistry, 10 papers in Radiation and 8 papers in Electronic, Optical and Magnetic Materials. Recurrent topics in Alan A. Coelho's work include X-ray Diffraction in Crystallography (23 papers), Nuclear Physics and Applications (9 papers) and Crystal Structures and Properties (8 papers). Alan A. Coelho is often cited by papers focused on X-ray Diffraction in Crystallography (23 papers), Nuclear Physics and Applications (9 papers) and Crystal Structures and Properties (8 papers). Alan A. Coelho collaborates with scholars based in Australia, Germany and United Kingdom. Alan A. Coelho's co-authors include R. W. Cheary, James P. Cline, John S. O. Evans, A. Kern, Ian S. Evans, Simon Parsons, Katherine L. Smith, Philip A. Chater, James W. Lewis and Paolo Scardi and has published in prestigious journals such as Journal of Applied Physics, Chemistry of Materials and Chemical Communications.

In The Last Decade

Alan A. Coelho

32 papers receiving 5.7k 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.

TOPAS and TOPAS-Academic: an optimization program integrating computer algebra and crystallographic objects written in C++

2018 1.8k citations Alan A. Coelho Journal of Applied Crystallography profile →
A fundamental parameters approach to X-ray line-profile fitting

1992 1.4k citations R. W. Cheary, Alan A. Coelho Journal of Applied Crystallography profile →
Fundamental parameters line profile fitting in laboratory diffractometers

2004 568 citations R. W. Cheary, Alan A. Coelho et al. Journal of Research of the National Institute of Standards and Technology profile →
Indexing of powder diffraction patterns by iterative use of singular value decomposition

2003 507 citations Alan A. Coelho Journal of Applied Crystallography profile →

Peers

Alan A. Coelho

EOMM

EEE

Angus P. Wilkinson United States

Victor Milman Germany

W. Wong‐Ng United States

Antonio Cervellino Switzerland

Daniel M. Többens Germany

G. Vaughan France

Christel Gervais France

Yan V. Zubavichus Russia

H. D. Lutz Germany

Lynne B. McCusker Switzerland

Angus P. Wilkinson United States

Alan A. Coelho

3.9k ×1.0

1.2k ×0.9

EOMM

1.1k ×0.9

1.7k ×1.4

EEE

409 ×0.7

Citations per year, relative to Alan A. Coelho Alan A. Coelho (= 1×) peers Angus P. Wilkinson

Countries citing papers authored by Alan A. Coelho

Since Specialization

Citations

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

Fields of papers citing papers by Alan A. Coelho

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Alan A. Coelho. 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 Alan A. Coelho. The network helps show where Alan A. Coelho may publish in the future.

Co-authorship network of co-authors of Alan A. Coelho

This figure shows the co-authorship network connecting the top 25 collaborators of Alan A. Coelho. A scholar is included among the top collaborators of Alan A. Coelho 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 Alan A. Coelho. Alan A. Coelho 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

Coelho, Alan A., Philip A. Chater, & Michael J. Evans. (2021). Generating the atomic pair distribution function without instrument or emission profile contributions. Journal of Applied Crystallography. 54(2). 444–453. 5 indexed citations

Vamvakeros, Antonis, Dorota Matras, Thomas E. Ashton, et al.. (2021). Cycling Rate‐Induced Spatially‐Resolved Heterogeneities in Commercial Cylindrical Li‐Ion Batteries. Small Methods. 5(9). e2100512–e2100512. 21 indexed citations

Coelho, Alan A.. (2020). Ab initio structure solution of proteins at atomic resolution using charge-flipping techniques and cloud computing. Acta Crystallographica Section D Structural Biology. 77(1). 98–107. 2 indexed citations

Vamvakeros, Antonis, Alan A. Coelho, Dorota Matras, et al.. (2020). DLSR: a solution to the parallax artefact in X-ray diffraction computed tomography data. Journal of Applied Crystallography. 53(6). 1531–1541. 15 indexed citations

Scardi, Paolo, et al.. (2018). Whole powder pattern modelling macros for TOPAS. Journal of Applied Crystallography. 51(6). 1752–1765. 51 indexed citations

Coelho, Alan A.. (2018). TOPAS and TOPAS-Academic: an optimization program integrating computer algebra and crystallographic objects written in C++. Journal of Applied Crystallography. 51(1). 210–218. 1813 indexed citations breakdown →

Coelho, Alan A.. (2018). Optimum Levenberg–Marquardt constant determination for nonlinear least-squares. Journal of Applied Crystallography. 51(2). 428–435. 7 indexed citations

Whitfield, Pamela S. & Alan A. Coelho. (2016). Asymmetric band flipping for time-of-flight neutron diffraction data. Journal of Applied Crystallography. 49(5). 1806–1809.

Coelho, Alan A., Philip A. Chater, & A. Kern. (2015). Fast synthesis and refinement of the atomic pair distribution function. Journal of Applied Crystallography. 48(3). 869–875. 57 indexed citations

10.

Coelho, Alan A., John S. O. Evans, Ian S. Evans, A. Kern, & Simon Parsons. (2011). The T OPAS symbolic computation system. Powder Diffraction. 26(S1). S22–S25. 261 indexed citations

11.

Coelho, Alan A.. (2007). A charge-flipping algorithm incorporating the tangent formula for solving difficult structures. Acta Crystallographica Section A Foundations of Crystallography. 63(5). 400–406. 55 indexed citations

12.

Cheary, R. W., Alan A. Coelho, & James P. Cline. (2004). Fundamental parameters line profile fitting in laboratory diffractometers. Journal of Research of the National Institute of Standards and Technology. 109(1). 1–1. 568 indexed citations breakdown →

13.

Evans, Ivana Radosavljević, et al.. (2004). Mo2P4O15? the most complex oxide structure solved by single crystal methods?. Chemical Communications. 2540–2540. 17 indexed citations

14.

Coelho, Alan A. & A. Kern. (2002). Indexing of powder diffraction patterns by iterative use of singular value decomposition. Acta Crystallographica Section A Foundations of Crystallography. 58(s1). c227–c227. 7 indexed citations

15.

Cheary, R. W. & Alan A. Coelho. (1998). An experimental investigation of the effects of axial divergence on diffraction line profiles. Powder Diffraction. 13(2). 100–106. 8 indexed citations

16.

Cheary, R. W. & Alan A. Coelho. (1998). Axial Divergence in a Conventional X-ray Powder Diffractometer. II. Realization and Evaluation in a Fundamental-Parameter Profile Fitting Procedure. Journal of Applied Crystallography. 31(6). 862–868. 105 indexed citations

17.

Cheary, R. W. & Alan A. Coelho. (1998). Axial Divergence in a Conventional X-ray Powder Diffractometer. I. Theoretical Foundations. Journal of Applied Crystallography. 31(6). 851–861. 169 indexed citations

18.

Coelho, Alan A. & R. W. Cheary. (1997). A fast and simple method for calculating electrostatic potentials. Computer Physics Communications. 104(1-3). 15–22. 9 indexed citations

19.

Cheary, R. W. & Alan A. Coelho. (1997). A site occupancy analysis of zirconolite CaZr x Ti 3−x O 7. Physics and Chemistry of Minerals. 24(6). 447–454. 39 indexed citations

20.

Cheary, R. W. & Alan A. Coelho. (1992). A fundamental parameters approach to X-ray line-profile fitting. Journal of Applied Crystallography. 25(2). 109–121. 1415 indexed citations breakdown →

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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