N.C. Pyper

5.2k total citations · 1 hit paper
125 papers, 4.3k citations indexed

About

N.C. Pyper is a scholar working on Atomic and Molecular Physics, and Optics, Materials Chemistry and Spectroscopy. According to data from OpenAlex, N.C. Pyper has authored 125 papers receiving a total of 4.3k indexed citations (citations by other indexed papers that have themselves been cited), including 82 papers in Atomic and Molecular Physics, and Optics, 45 papers in Materials Chemistry and 22 papers in Spectroscopy. Recurrent topics in N.C. Pyper's work include Advanced Chemical Physics Studies (67 papers), Atomic and Molecular Physics (44 papers) and Solid-state spectroscopy and crystallography (23 papers). N.C. Pyper is often cited by papers focused on Advanced Chemical Physics Studies (67 papers), Atomic and Molecular Physics (44 papers) and Solid-state spectroscopy and crystallography (23 papers). N.C. Pyper collaborates with scholars based in United Kingdom, United States and Canada. N.C. Pyper's co-authors include I. P. Grant, D. F. Mayers, Blair McKenzie, P. H. Norrington, John H. Harding, Patrick W. Fowler, S. J. Rose, P.P. Edwards, Gulzari Malli and M. R. Harston and has published in prestigious journals such as Nature, Journal of the American Chemical Society and Physical Review Letters.

In The Last Decade

N.C. Pyper

123 papers receiving 4.0k 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.

An atomic multiconfigurational Dirac-Fock package

1980 1.5k citations I. P. Grant, N.C. Pyper et al. profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
N.C. Pyper United Kingdom	27	3.2k	936	809	650	642	125	4.3k
Jack Sugar United States	38	3.3k 1.0×	692 0.7×	1.1k 1.4×	663 1.0×	482 0.8×	104	4.2k
Β. Fricke Germany	31	2.8k 0.9×	464 0.5×	395 0.5×	499 0.8×	727 1.1×	213	3.5k
T. Andersen Denmark	37	4.4k 1.4×	372 0.4×	1.5k 1.9×	734 1.1×	442 0.7×	166	5.1k
Ingvar Lindgren Sweden	41	4.7k 1.5×	490 0.5×	796 1.0×	459 0.7×	1.1k 1.7×	154	5.7k
J. P. Desclaux France	37	5.2k 1.6×	1.1k 1.1×	918 1.1×	1.4k 2.1×	818 1.3×	92	7.2k
I. Martinson Sweden	35	3.1k 1.0×	783 0.8×	1.0k 1.3×	742 1.1×	441 0.7×	201	4.0k
J P Connerade United Kingdom	32	3.6k 1.1×	517 0.6×	738 0.9×	653 1.0×	185 0.3×	209	4.2k
W. R. Johnson United States	37	4.5k 1.4×	499 0.5×	771 1.0×	685 1.1×	1.1k 1.7×	104	5.3k
Z. Vager Israel	36	3.5k 1.1×	937 1.0×	1.3k 1.6×	712 1.1×	689 1.1×	151	5.6k
E. Recknagel Germany	35	2.2k 0.7×	1.3k 1.3×	531 0.7×	294 0.5×	313 0.5×	190	4.3k

Countries citing papers authored by N.C. Pyper

Since Specialization

Citations

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

Fields of papers citing papers by N.C. Pyper

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by N.C. Pyper. 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 N.C. Pyper. The network helps show where N.C. Pyper may publish in the future.

Co-authorship network of co-authors of N.C. Pyper

This figure shows the co-authorship network connecting the top 25 collaborators of N.C. Pyper. A scholar is included among the top collaborators of N.C. Pyper 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 N.C. Pyper. N.C. Pyper 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

Lacroix, Bertrand, A. Fernández, N.C. Pyper, Alex J. W. Thom, & Colm T. Whelan. (2024). On the characteristics of helium filled nano-pores in amorphous silicon thin films. Applied Surface Science. 683. 161772–161772. 1 indexed citations

Edwards, Peter P., N.C. Pyper, Xiangyu Jie, et al.. (2022). Orbital selective hole- and hole-pair formation and Bose condensation in high-temperature superconductors. Journal of Solid State Chemistry. 317. 123529–123529.

Riedel, René, Andrew G. Seel, Daniel Malko, et al.. (2021). Superalkali–Alkalide Interactions and Ion Pairing in Low-Polarity Solvents. Journal of the American Chemical Society. 143(10). 3934–3943. 21 indexed citations

Bichoutskaia, Elena & N.C. Pyper. (2008). Theoretical study of the structures and electronic properties of all-surface KI and CsI nanocrystals encapsulated in single walled carbon nanotubes. The Journal of Chemical Physics. 129(15). 154701–154701. 13 indexed citations

Pyper, N.C., et al.. (2005). Symmetry properties of theSmatrix in a fully relativistic distorted-wave treatment of electron-impact ionization. Physical Review A. 71(5). 1 indexed citations

Pyper, N.C.. (1995). The cohesion of solid magnesium and calcium oxide: the role of in-crystal modification of the oxide ion and electron correlation. Philosophical Transactions of the Royal Society of London Series A Physical and Engineering Sciences. 352(1698). 89–123. 17 indexed citations

Pyper, N.C.. (1995). Errata. Philosophical Transactions of the Royal Society of London Series A Physical and Engineering Sciences. 352(1698). 123–124. 1 indexed citations

Jones, R. V., Robert R. Janes, A. Robert Armstrong, et al.. (1990). A combined ESR/X-ray diffraction study of the Y₂O₃–BaO–CuO phase diagram. Journal of the Chemical Society Faraday Transactions. 86(4). 675–682. 24 indexed citations

Pyper, N.C. & M. R. Harston. (1988). Atomic effects on β-decay. Proceedings of the Royal Society of London A Mathematical and Physical Sciences. 420(1859). 277–321. 12 indexed citations

10.

Pyper, N.C., et al.. (1987). Relativistic modifications of inter-ionic potentials in lead fluoride. Journal of Physics C Solid State Physics. 20(29). 4711–4724. 3 indexed citations

11.

Drake, Simon R., Peter P. Edwards, Brian F. G. Johnson, et al.. (1987). The emergence of paramagnetism in transition-metal carbonyl clusters. Chemical Physics Letters. 139(3-4). 336–344. 13 indexed citations

12.

Malli, Gulzari & N.C. Pyper. (1986). Ab initio fully relativistic molecular calculations: bonding in gold hydride. Proceedings of the Royal Society of London A Mathematical and Physical Sciences. 407(1833). 377–404. 43 indexed citations

13.

Pyper, N.C.. (1986). Relativistic AB Initio calculations of the properties of ionic solids. Philosophical Transactions of the Royal Society of London Series A Mathematical and Physical Sciences. 320(1553). 107–158. 54 indexed citations

14.

Pyper, N.C., et al.. (1986). Relativistic AB Initio calculations of interaction energies: formulation and application to ionic solids. Philosophical Transactions of the Royal Society of London Series A Mathematical and Physical Sciences. 320(1553). 71–105. 32 indexed citations

15.

Fowler, Patrick W. & N.C. Pyper. (1985). In-crystal ionic polarizabilities derived by combining experimental and ab initio results. Proceedings of the Royal Society of London A Mathematical and Physical Sciences. 398(1815). 377–393. 109 indexed citations

16.

Pyper, N.C.. (1982). Theoretical chemistry of the 7p series of superheavy elements II. the relativistic molecular orbital and Kappa Valence methods. Philosophical Transactions of the Royal Society of London Series A Mathematical and Physical Sciences. 304(1488). 567–642. 6 indexed citations

17.

Pyper, N.C. & I. P. Grant. (1981). Theoretical Chemistry of the 7p series of superheavy elements. I. Atomic Structure studied by multi-configuration Dirac-Fock theory. Proceedings of the Royal Society of London A Mathematical and Physical Sciences. 376(1766). 483–492. 12 indexed citations

18.

Pyper, N.C.. (1980). Relativistic pseudopotential theories and corrections to the Hartree-Fock method. Molecular Physics. 39(6). 1327–1358. 33 indexed citations

19.

Pyper, N.C. & I. P. Grant. (1978). The relation between successive atomic ionization potentials. Proceedings of the Royal Society of London A Mathematical and Physical Sciences. 359(1699). 525–543. 11 indexed citations

20.

Pyper, N.C., Joseph Gerratt, & D. R. Bates. (1977). Spin-coupled theory of molecular wavefunctions: applications to the structure and properties of LiH(X1∑+), BH(X1∑+), Li2(X1∑g+) and HF(X1∑+). Proceedings of the Royal Society of London A Mathematical and Physical Sciences. 355(1682). 407–439. 59 indexed citations

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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