J. Appel

2.5k total citations
67 papers, 1.8k citations indexed

About

J. Appel is a scholar working on Condensed Matter Physics, Atomic and Molecular Physics, and Optics and Electronic, Optical and Magnetic Materials. According to data from OpenAlex, J. Appel has authored 67 papers receiving a total of 1.8k indexed citations (citations by other indexed papers that have themselves been cited), including 50 papers in Condensed Matter Physics, 35 papers in Atomic and Molecular Physics, and Optics and 20 papers in Electronic, Optical and Magnetic Materials. Recurrent topics in J. Appel's work include Physics of Superconductivity and Magnetism (44 papers), Quantum and electron transport phenomena (19 papers) and Rare-earth and actinide compounds (16 papers). J. Appel is often cited by papers focused on Physics of Superconductivity and Magnetism (44 papers), Quantum and electron transport phenomena (19 papers) and Rare-earth and actinide compounds (16 papers). J. Appel collaborates with scholars based in Germany, United States and Israel. J. Appel's co-authors include D. Fay, Andrei E. Ruckenstein, P. J. Hirschfeld, A. W. Overhauser, H. Kuwamoto, J. M. Honig, P. Hertel, W. Kohn, M. Grodzicki and R. Liebmann and has published in prestigious journals such as Physical Review Letters, Physical review. B, Condensed matter and Journal of Applied Physics.

In The Last Decade

J. Appel

64 papers receiving 1.7k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
J. Appel Germany	18	1.3k	752	578	342	148	67	1.8k
R. E. Salomon United States	18	844 0.7×	480 0.6×	273 0.5×	423 1.2×	187 1.3×	63	1.6k
H. M. Fretwell United Kingdom	24	2.1k 1.6×	1.2k 1.6×	739 1.3×	468 1.4×	116 0.8×	66	2.7k
V. V. Eremenko Ukraine	18	451 0.4×	605 0.8×	407 0.7×	544 1.6×	282 1.9×	189	1.3k
R.J. Baughman United States	22	872 0.7×	587 0.8×	198 0.3×	341 1.0×	176 1.2×	55	1.4k
Cheng Tien Taiwan	20	671 0.5×	585 0.8×	166 0.3×	573 1.7×	95 0.6×	57	1.3k
Hideaki Kitazawa Japan	27	1.7k 1.3×	1.5k 2.0×	322 0.6×	728 2.1×	176 1.2×	168	2.4k
F. Mayr Germany	25	948 0.7×	1.2k 1.6×	163 0.3×	746 2.2×	156 1.1×	66	1.7k
J. A. Goldstone United States	19	331 0.3×	213 0.3×	249 0.4×	438 1.3×	82 0.6×	57	999
H. L. Pinch United States	11	331 0.3×	388 0.5×	212 0.4×	383 1.1×	211 1.4×	21	839
J. Grace United States	10	1.9k 1.5×	937 1.2×	461 0.8×	444 1.3×	74 0.5×	14	2.2k

Countries citing papers authored by J. Appel

Since Specialization

Citations

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

Fields of papers citing papers by J. Appel

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of J. Appel

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

Fay, D. & J. Appel. (2002). Effect of Spin-Orbit Scattering on the Magnetic and Superconducting Properties of Nearly Ferromagnetic Metals: Application to Granular Pt. Physical Review Letters. 89(12). 127001–127001. 10 indexed citations

Fay, D. & J. Appel. (1995). Violation of Anderson’s theorem for superconductors with nonretarded interactions. Physical review. B, Condensed matter. 51(21). 15604–15606. 6 indexed citations

Hertel, P., J. Appel, & James C. Swihart. (1989). Linear charge-density-wave instability inYBa2Cu3O7−δand the pair-breaking effect from Coulomb scattering with superconducting electrons. Physical review. B, Condensed matter. 39(10). 6708–6715. 14 indexed citations

Appel, J. & P. Hertel. (1987). Cooper-pair states for heavy fermions in the atomic representation:UPt3. Physical review. B, Condensed matter. 35(1). 155–172. 12 indexed citations

Appel, J., et al.. (1986). Baber scattering in strong magnetic fields: The effect of Landau quantization. Physical review. B, Condensed matter. 34(2). 748–755. 2 indexed citations

Hertel, P. & J. Appel. (1986). Anomalous electric and magnetic properties ofV2O3in the metallic state. Physical review. B, Condensed matter. 33(4). 2098–2113. 12 indexed citations

Appel, J. & A. W. Overhauser. (1984). Spin-orbit scattering in dirty superconductors. Physical review. B, Condensed matter. 29(1). 99–101. 7 indexed citations

Liebmann, R., et al.. (1983). Electron-phonon interaction in polar solids with application to the tungsten bronzes. Journal of Physics and Chemistry of Solids. 44(3). 245–259. 15 indexed citations

Fay, D. & J. Appel. (1980). Coexistence ofp-state superconductivity and itinerant ferromagnetism. Physical review. B, Condensed matter. 22(7). 3173–3182. 254 indexed citations

10.

Appel, J., et al.. (1977). Selfconsistent model calculations of electronic states at narrow-band-metal surfaces. Surface Science. 66(2). 507–526. 2 indexed citations

11.

Appel, J.. (1973). Freundlich's adsorption isotherm. Surface Science. 39(1). 237–244. 127 indexed citations

12.

Appel, J. & W. Kohn. (1972). Superconducting Pair States for Transition Metals in the Atomic Representation. Physical review. B, Solid state. 5(5). 1823–1830. 11 indexed citations

13.

Appel, J. & W. Kohn. (1971). Transition Temperature of Narrow-Band Superconductors. Physical review. B, Solid state. 4(7). 2162–2174. 58 indexed citations

14.

Appel, J.. (1971). Soft mode superconductivity in SrTiO3−x and CaySr1−yTiO3−x. Physica. 55. 577–584. 3 indexed citations

15.

Appel, J.. (1969). Soft-Mode Superconductivity inSrTiO3−x. Physical Review. 180(2). 508–516. 63 indexed citations

16.

Appel, J.. (1968). On superconductivity in degenerate semiconductors. Physics Letters A. 27(4). 234–235. 2 indexed citations

17.

Appel, J.. (1966). Superconductivity in Pseudoferroelectrics. Physical Review Letters. 17(20). 1045–1048. 28 indexed citations

18.

Appel, J. & Sarah Kurnick. (1961). Polaron Band Model and Its Application to Ce–S Semiconductors. Journal of Applied Physics. 32(10). 2206–2210. 10 indexed citations

19.

Appel, J.. (1961). Remark on the seebeck coefficient of polar semiconductors. Philosophical magazine. 6(61). 167–169. 5 indexed citations

20.

Appel, J.. (1959). Theory of thermoelectric and thermomagnetic effects in nonpolar isotropic semiconductors. Journal of Physics and Chemistry of Solids. 8. 353–358.

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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