D. Chopra

530 total citations
54 papers, 450 citations indexed

About

D. Chopra is a scholar working on Atomic and Molecular Physics, and Optics, Surfaces, Coatings and Films and Radiation. According to data from OpenAlex, D. Chopra has authored 54 papers receiving a total of 450 indexed citations (citations by other indexed papers that have themselves been cited), including 21 papers in Atomic and Molecular Physics, and Optics, 21 papers in Surfaces, Coatings and Films and 18 papers in Radiation. Recurrent topics in D. Chopra's work include Electron and X-Ray Spectroscopy Techniques (21 papers), X-ray Spectroscopy and Fluorescence Analysis (18 papers) and Metal and Thin Film Mechanics (13 papers). D. Chopra is often cited by papers focused on Electron and X-Ray Spectroscopy Techniques (21 papers), X-ray Spectroscopy and Fluorescence Analysis (18 papers) and Metal and Thin Film Mechanics (13 papers). D. Chopra collaborates with scholars based in United States, India and Austria. D. Chopra's co-authors include A. R. Chourasia, S. C. Sharma, T. K. Hatwar, T. D. Black, Kamal K. Mishra, G. C. Moore Smith, Sunil Kumar, R. J. Nemanich, G. E. McGuire and Bruce E. Gnade and has published in prestigious journals such as Physical review. B, Condensed matter, Applied Physics Letters and Journal of Applied Physics.

In The Last Decade

D. Chopra

53 papers receiving 435 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
D. Chopra United States	14	234	150	129	120	99	54	450
A. R. Chourasia United States	13	280 1.2×	180 1.2×	155 1.2×	77 0.6×	58 0.6×	51	456
Stefan Csillag Sweden	13	326 1.4×	128 0.9×	73 0.6×	66 0.6×	75 0.8×	27	550
Xiaohe Pan United States	13	272 1.2×	141 0.9×	64 0.5×	300 2.5×	149 1.5×	28	608
D. Ochs Germany	11	284 1.2×	140 0.9×	39 0.3×	194 1.6×	86 0.9×	18	483
L. Wiedmann Germany	15	257 1.1×	250 1.7×	105 0.8×	73 0.6×	182 1.8×	25	603
S. Eyhusen Germany	7	451 1.9×	159 1.1×	82 0.6×	65 0.5×	77 0.8×	10	556
C. K. C. Lok United States	11	242 1.0×	122 0.8×	67 0.5×	250 2.1×	121 1.2×	23	572
J.H. Craig United States	14	312 1.3×	353 2.4×	31 0.2×	201 1.7×	154 1.6×	76	614
J.A. Ramsey Australia	11	128 0.5×	121 0.8×	31 0.2×	92 0.8×	100 1.0×	25	332
J.P. Delrue Belgium	10	467 2.0×	249 1.7×	32 0.2×	134 1.1×	103 1.0×	23	691

Countries citing papers authored by D. Chopra

Since Specialization

Citations

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

Fields of papers citing papers by D. Chopra

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of D. Chopra

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

Chopra, D., et al.. (2018). Investigation of Ti/CuO interface by X‐ray photoelectron spectroscopy and atomic force microscopy. Surface and Interface Analysis. 51(2). 246–253. 2 indexed citations

McGuire, G. E., Patrick Han, James G. Kushmerick, et al.. (1999). Surface Characterization. Analytical Chemistry. 71(12). 373–388. 14 indexed citations

Chourasia, A. R. & D. Chopra. (1994). Elemental Manganese Studied by X-ray Photoemission Spectroscopy Using Mg and Zr Radiations. Surface Science Spectra. 3(1). 74–81. 16 indexed citations

Kumar, Sunil, D. Chopra, & G. C. Moore Smith. (1993). X-ray photoelectron spectroscopy characteristics of the W/TiN/Si and W/TiN/SiO2/Si structures. Journal of Electron Spectroscopy and Related Phenomena. 63(2). 145–153. 5 indexed citations

McGuire, G. E., Steven J. Simko, Susan L. Brandow, et al.. (1993). Surface characterization. Analytical Chemistry. 65(12). 311–333. 8 indexed citations

Pérez, J.M., et al.. (1993). Scanning tunneling microscopy of the electronic structure of chemical vapor deposited diamond films. Applied Physics Letters. 62(16). 1889–1891. 14 indexed citations

Chourasia, A. R., et al.. (1992). A study of Y–Ba–Cu–O/Si interfaces by x-ray photoelectron spectroscopy. Journal of Vacuum Science & Technology A Vacuum Surfaces and Films. 10(1). 115–121. 1 indexed citations

Sharma, S. C., et al.. (1990). Deposition of diamond films at low pressures and their characterization by positron annihilation, Raman, scanning electron microscopy, and x-ray photoelectron spectroscopy. Applied Physics Letters. 56(18). 1781–1783. 24 indexed citations

Chourasia, A. R. & D. Chopra. (1989). Appearance potential study of Nd2Fe14B. Journal of the Less Common Metals. 148(1-2). 413–420. 2 indexed citations

10.

Carlisle, J. A., et al.. (1989). Study of the low-pressure chemical-vapor-deposited tungsten-silicon interface: Interfacial fluorine. Journal of Applied Physics. 65(6). 2313–2320. 7 indexed citations

11.

Chopra, D.. (1987). Core-level spectroscopy of the 4f states of rare earths. Journal of the Less Common Metals. 127. 373–378. 3 indexed citations

12.

Chourasia, A. R., et al.. (1987). X-ray photoelectron spectroscopy study of the Ni/Si oxide/Si interface. Journal of Vacuum Science & Technology A Vacuum Surfaces and Films. 5(6). 3340–3345. 10 indexed citations

13.

Chopra, D., et al.. (1986). Surface atom core level energy shifts for Ti, Cr, Fe, and Co polycrystalline surfaces. Surface Science. 169(2-3). L311–L316. 5 indexed citations

14.

Chopra, D., et al.. (1986). Study of the 4f-levels in rare earths by appearance potential spectroscopy. Journal of Electron Spectroscopy and Related Phenomena. 41(1). 167–173. 2 indexed citations

15.

Hatwar, T. K. & D. Chopra. (1985). Appearance potential study of N4,5-level of light rare earth metals and their oxides. Applications of Surface Science. 22-23. 267–274. 1 indexed citations

16.

Chopra, D., T. K. Hatwar, & S. K. Malik. (1984). Soft x-ray appearance potential spectroscopic study of Sm–Co intermetallics. Journal of Vacuum Science & Technology A Vacuum Surfaces and Films. 2(3). 1324–1328. 2 indexed citations

17.

Hatwar, T. K., et al.. (1984). Extended X‐Ray Absorption Fine Structure in RAl₂Ga₂ Intermetallies. physica status solidi (b). 126(1). 279–283. 1 indexed citations

18.

Chopra, D., et al.. (1984). Correlation of selected core-level spectroscopies. Journal of Electron Spectroscopy and Related Phenomena. 33(2). 141–152. 1 indexed citations

19.

Chopra, D., et al.. (1981). Soft x-ray appearance potential studies of 59Pr, 65Tb, 67Ho, and 68Er. Journal of Vacuum Science and Technology. 18(1). 44–48. 10 indexed citations

20.

Chopra, D., et al.. (1975). Design of a water-activated switch for a diffusion pump. Review of Scientific Instruments. 46(4). 491–492.

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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