J. A. Brum

1.1k total citations
46 papers, 834 citations indexed

About

J. A. Brum is a scholar working on Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering and Materials Chemistry. According to data from OpenAlex, J. A. Brum has authored 46 papers receiving a total of 834 indexed citations (citations by other indexed papers that have themselves been cited), including 42 papers in Atomic and Molecular Physics, and Optics, 17 papers in Electrical and Electronic Engineering and 8 papers in Materials Chemistry. Recurrent topics in J. A. Brum's work include Semiconductor Quantum Structures and Devices (35 papers), Quantum and electron transport phenomena (32 papers) and Physics of Superconductivity and Magnetism (6 papers). J. A. Brum is often cited by papers focused on Semiconductor Quantum Structures and Devices (35 papers), Quantum and electron transport phenomena (32 papers) and Physics of Superconductivity and Magnetism (6 papers). J. A. Brum collaborates with scholars based in Brazil, Canada and United States. J. A. Brum's co-authors include Jongill Hong, Paweł Hawrylak, F. Agulló‐Rueda, L. Esaki, T. P. Smith, C. M. Knoedler, G. Bastard, E. E. Méndez, L.L. Chang and Hideo Ohno and has published in prestigious journals such as Physical Review Letters, Physical review. B, Condensed matter and Applied Physics Letters.

In The Last Decade

J. A. Brum

45 papers receiving 795 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
J. A. Brum Brazil 13 778 311 194 111 56 46 834
R. I. Dzhioev Russia 16 839 1.1× 400 1.3× 246 1.3× 157 1.4× 40 0.7× 41 943
J. Spector United States 10 678 0.9× 360 1.2× 110 0.6× 131 1.2× 30 0.5× 17 722
T. Demel Germany 12 969 1.2× 285 0.9× 104 0.5× 237 2.1× 59 1.1× 17 1.0k
N. T. Bagraev Russia 14 636 0.8× 436 1.4× 254 1.3× 139 1.3× 21 0.4× 152 829
H. Scherer Germany 14 442 0.6× 403 1.3× 86 0.4× 74 0.7× 50 0.9× 53 613
V. K. Kalevich Russia 18 963 1.2× 443 1.4× 176 0.9× 206 1.9× 84 1.5× 61 1.0k
Bradley A. Foreman Hong Kong 15 792 1.0× 442 1.4× 191 1.0× 193 1.7× 29 0.5× 27 890
Jia-Jiong Xiong China 11 549 0.7× 166 0.5× 195 1.0× 45 0.4× 42 0.8× 21 597
M. Bichler Germany 15 661 0.8× 332 1.1× 124 0.6× 145 1.3× 73 1.3× 33 714
K. Navaneethakrishnan India 18 1.0k 1.3× 272 0.9× 317 1.6× 201 1.8× 76 1.4× 60 1.1k

Countries citing papers authored by J. A. Brum

Since Specialization
Citations

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

Fields of papers citing papers by J. A. Brum

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of J. A. Brum

This figure shows the co-authorship network connecting the top 25 collaborators of J. A. Brum. A scholar is included among the top collaborators of J. A. Brum 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. A. Brum. J. A. Brum is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Brasil, M. J. S. P., F. Iikawa, Udson C. Mendes, et al.. (2016). Optically controlled spin-polarization memory effect on Mn delta-doped heterostructures. Scientific Reports. 6(1). 24537–24537. 7 indexed citations
2.
Brasil, M. J. S. P., F. Iikawa, Udson C. Mendes, et al.. (2013). Compensation effect on the CW spin-polarization degree of Mn-based structures. Journal of Physics D Applied Physics. 46(21). 215103–215103. 4 indexed citations
3.
Tavares, Pedro Fernandes & J. A. Brum. (2006). The Brazilian Synchrotron Light Source. Proceedings of the 2005 Particle Accelerator Conference. epac 92. 325–329. 2 indexed citations
4.
Ferreira, R., et al.. (2002). Binding Energy of Negatively Charged Exciton in a Semiconductor Quantum Well: The Role of Interface Defects. physica status solidi (a). 190(3). 799–802. 1 indexed citations
5.
Brum, J. A., et al.. (2002). Effects of an electron gas on the negative trion in semiconductor quantum wells. Physica E Low-dimensional Systems and Nanostructures. 12(1-4). 546–549. 3 indexed citations
6.
Iikawa, F., et al.. (1999). Electron-spin polarization near the Fermi level inn-type modulation-doped semiconductor quantum wells. Physical review. B, Condensed matter. 59(12). R7813–R7816. 3 indexed citations
7.
Rasnik, Ivan, Luís G. C. Rego, M. V. Marquezini, et al.. (1999). Confinement versus localization for quantum wells and quantum wires in a self-assembled structure. Superlattices and Microstructures. 25(1-2). 137–141. 1 indexed citations
8.
Rasnik, Ivan, et al.. (1998). Interface roughness localization in quantum wells and quantum wires. Physical review. B, Condensed matter. 58(15). 9876–9880. 5 indexed citations
9.
Marquezini, M. V., M. J. S. P. Brasil, J. A. Brum, et al.. (1996). Exciton dynamics in a single quantum well with self-assembled islands. Physical review. B, Condensed matter. 53(24). 16524–16530. 11 indexed citations
10.
Marquezini, M. V., M. J. S. P. Brasil, J. A. Brum, et al.. (1996). Study of temperature-dependent exciton dynamics in a single quantum well with self-assembled islands. Surface Science. 361-362. 810–813. 3 indexed citations
11.
Hawrylak, Paweł, Arkadiusz Wójs, & J. A. Brum. (1996). Magnetoexcitons and correlated electrons in quantum dots in a magnetic field. Physical review. B, Condensed matter. 54(16). 11397–11409. 34 indexed citations
12.
Brum, J. A., et al.. (1995). Γ-X exciton dispersion. Il Nuovo Cimento D. 17(11-12). 1675–1680. 2 indexed citations
13.
Schulz, P. A., et al.. (1994). Wannier-stark states in nanostructures. Solid-State Electronics. 37(4-6). 1171–1174. 2 indexed citations
14.
Brum, J. A.. (1991). Electronic properties of quantum-dot superlattices. Physical review. B, Condensed matter. 43(14). 12082–12085. 44 indexed citations
15.
Ohno, Hideo, E. E. Méndez, J. A. Brum, et al.. (1990). Observation of ‘‘Tamm states’’ in superlattices. Physical Review Letters. 64(21). 2555–2558. 154 indexed citations
16.
Agulló‐Rueda, F., et al.. (1990). Change in dimensionality of superlattice excitons induced by an electric field. Physical review. B, Condensed matter. 41(3). 1676–1679. 26 indexed citations
17.
Brum, J. A. & F. Agulló‐Rueda. (1990). Stark ladder excitonic transitions. Surface Science. 229(1-3). 472–475. 7 indexed citations
18.
Hansen, W., T. P. Smith, K. Y. Lee, et al.. (1989). Zeeman bifurcation of quantum-dot spectra. Physical Review Letters. 62(18). 2168–2171. 147 indexed citations
19.
Smith, T. P., et al.. (1988). Magnetic Anisotropy of a One-Dimensional Electron System. Physical Review Letters. 61(5). 585–588. 49 indexed citations
20.
Brum, J. A. & G. Bastard. (1985). Excitons formed between excited sub-bands in GaAs-Ga1-xAlxAs quantum wells. Journal of Physics C Solid State Physics. 18(26). L789–L794. 45 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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