J. A. Varela

2.6k total citations
67 papers, 2.3k citations indexed

About

J. A. Varela is a scholar working on Materials Chemistry, Electrical and Electronic Engineering and Biomedical Engineering. According to data from OpenAlex, J. A. Varela has authored 67 papers receiving a total of 2.3k indexed citations (citations by other indexed papers that have themselves been cited), including 57 papers in Materials Chemistry, 41 papers in Electrical and Electronic Engineering and 14 papers in Biomedical Engineering. Recurrent topics in J. A. Varela's work include Ferroelectric and Piezoelectric Materials (28 papers), Gas Sensing Nanomaterials and Sensors (21 papers) and ZnO doping and properties (21 papers). J. A. Varela is often cited by papers focused on Ferroelectric and Piezoelectric Materials (28 papers), Gas Sensing Nanomaterials and Sensors (21 papers) and ZnO doping and properties (21 papers). J. A. Varela collaborates with scholars based in Brazil, United States and Spain. J. A. Varela's co-authors include E. Longo, E. R. Leite, Ingrid T. Weber, L.S. Cavalcante, Paulo R. Bueno, A.Z. Simões, S. A. Pianaro, P.S. Pizani, M.A. Ramírez and C.S. Riccardi and has published in prestigious journals such as Advanced Materials, Applied Physics Letters and Journal of Applied Physics.

In The Last Decade

J. A. Varela

66 papers receiving 2.3k 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. Varela Brazil 27 2.1k 1.4k 593 376 341 67 2.3k
Manu Hegde Canada 17 1.2k 0.6× 828 0.6× 456 0.8× 302 0.8× 255 0.7× 25 1.7k
Liang Shi China 34 2.0k 1.0× 1.9k 1.3× 712 1.2× 287 0.8× 172 0.5× 109 3.1k
J.A. Varela Brazil 25 1.4k 0.7× 1.4k 1.0× 218 0.4× 407 1.1× 383 1.1× 66 1.9k
Guilhem Dezanneau France 31 2.1k 1.0× 1.1k 0.7× 1.0k 1.7× 361 1.0× 221 0.6× 78 2.8k
L.D. Zhang China 29 2.2k 1.1× 1.5k 1.1× 566 1.0× 515 1.4× 205 0.6× 80 3.0k
H. ARAI Japan 16 2.2k 1.1× 804 0.6× 409 0.7× 344 0.9× 92 0.3× 31 2.7k
Zhiyong Zhang China 29 1.5k 0.8× 1.3k 0.9× 900 1.5× 381 1.0× 211 0.6× 135 2.6k
S. Al-Heniti Saudi Arabia 23 1.3k 0.6× 813 0.6× 366 0.6× 271 0.7× 180 0.5× 73 1.8k
Jijun Ding China 28 1.5k 0.7× 1.3k 0.9× 467 0.8× 480 1.3× 157 0.5× 100 2.1k
Lianxiang Yu China 22 953 0.5× 617 0.4× 619 1.0× 165 0.4× 209 0.6× 53 1.4k

Countries citing papers authored by J. A. Varela

Since Specialization
Citations

This map shows the geographic impact of J. A. Varela'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. Varela 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. Varela more than expected).

Fields of papers citing papers by J. A. Varela

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

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

This figure shows the co-authorship network connecting the top 25 collaborators of J. A. Varela. A scholar is included among the top collaborators of J. A. Varela 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. Varela. J. A. Varela 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.
Mazon, Talita, et al.. (2014). ZnO nanorods decorated with Au nanoparticles applied as gas sensors. UNESP Institutional Repository (São Paulo State University). 1(2014). 154–156. 1 indexed citations
2.
Lima, Renata C., J.W.M. Espinosa, V. M. Longo, et al.. (2008). Toward an Understanding of Intermediate- and Short-Range Defects in ZnO Single Crystals. A Combined Experimental and Theoretical Study. The Journal of Physical Chemistry A. 112(38). 8970–8978. 60 indexed citations
3.
Simões, A.Z., Alejandra Hortência Miranda González, E.C. Aguiar, et al.. (2008). Piezoelectric behavior of SrRuO3 buffered lanthanum modified bismuth ferrite thin films grown by chemical method. Applied Physics Letters. 93(14). 12 indexed citations
4.
Anicete-Santos, M., Emmanuelle Orhan, M.A.M.A. Maurera, et al.. (2007). Contribution of structural order-disorder to the green photoluminescence ofPbWO4. Physical Review B. 75(16). 49 indexed citations
5.
Cavalcante, L.S., Maria Fernanda do Carmo Gurgel, A.Z. Simões, et al.. (2007). Intense visible photoluminescence in Ba(Zr0.25Ti0.75)O3 thin films. Applied Physics Letters. 90(1). 61 indexed citations
6.
Simões, A.Z., Alejandra Hortência Miranda González, L.S. Cavalcante, et al.. (2007). Ferroelectric characteristics of BiFeO3 thin films prepared via a simple chemical solution deposition. Journal of Applied Physics. 101(7). 63 indexed citations
7.
Simões, A.Z., M.A. Ramírez, Andreas Ríes, et al.. (2006). Electromechanical properties of calcium bismuth titanate films: A potential candidate for lead-free thin-film piezoelectrics. Applied Physics Letters. 88(7). 36 indexed citations
8.
Varela, J. A., et al.. (2005). Uso de métodos químicos para obtener polvos cerámicos del sistema (Sn, Ti)O<sub>2</sub>. Boletín de la Sociedad Española de Cerámica y Vidrio. 44(4). 215–222. 10 indexed citations
9.
Sousa, Vânia Caldas de, M. R. Cássia-Santos, M.R.D. Bomio, et al.. (2004). Effect of atmosphere on the electrical properties of TiO2–SnO2varistor systems. Journal of Materials Science Materials in Electronics. 15(10). 665–669. 11 indexed citations
10.
Mazon, Talita, Ednan Joanni, José R. Fernandes, et al.. (2003). Growth and Characterization of BaBi2Nb2O9Thin Films Made by RF-Magnetron Sputtering. Ferroelectrics. 293(1). 201–207. 1 indexed citations
11.
Mercury, José Manuel Rivas, L. E. B. Soledade, I. M. G. Santos, et al.. (2002). Innovaciones en la gestión y calidad de los revestimientos refractarios en la Compañía Siderúrgica Nacional (Brasil). Boletín de la Sociedad Española de Cerámica y Vidrio. 41(2). 233–239. 1 indexed citations
12.
Leite, Edson R., Marcelo Moizinho Oliveira, Eduardo J. H. Lee, et al.. (2002). Synthesis of SnO<SUB>2</SUB> Nanoribbons by a Carbothermal Reduction Process. Journal of Nanoscience and Nanotechnology. 2(2). 125–128. 56 indexed citations
13.
Simões, A.Z., Alejandra Hortência Miranda González, M. Cilense, et al.. (2002). Influence of oxygen flow on crystallization and morphology of PLZT thin films. Ceramics International. 28(3). 271–277. 6 indexed citations
14.
Pontes, F. M., E. B. Araújo, Edson R. Leite, et al.. (2000). Microstructure and dielectric properties of (Ba,Sr)TiO3 thin film produced by the polymeric precursor method. Journal of materials research/Pratt's guide to venture capital sources. 15(5). 1176–1181. 15 indexed citations
15.
Bueno, Paulo R., Marcelo Moizinho Oliveira, M. R. Cássia-Santos, et al.. (2000). Varistores à base de SnO2: estado da arte e perspectivas. Cerâmica. 46(299). 124–130. 5 indexed citations
16.
Longo, E., et al.. (1999). Experimental and theoretical aspects of the stabilization of zirconia.. Journal of Materials Science. 34(11). 2751–2756. 33 indexed citations
17.
Zanetti, S.M., Edson R. Leite, E. Longo, & J. A. Varela. (1999). Cracks developed during SrTiO3 thin-film preparation from polymeric precursors. Applied Organometallic Chemistry. 13(5). 373–382. 14 indexed citations
18.
Leite, E. R., et al.. (1998). The effect of heating rate on the sintering of agglomerated NaNbO3 powders. Journal of Materials Science. 33(19). 4791–4795. 12 indexed citations
19.
Antunes, Sandra Regina Masetto, et al.. (1998). Nonlinear electrical behaviour of the SnO2.CoO.Ta2O5 system. Journal of Materials Science Letters. 17(7). 577–579. 57 indexed citations
20.
Leite, E. R., Marcos A.L. Nobre, E. Longo, & J. A. Varela. (1996). Microstructural development of ZnO varistor during reactive liquid phase sintering. Journal of Materials Science. 31(20). 5391–5398. 64 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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