M. Machado

423 total citations
24 papers, 309 citations indexed

About

M. Machado is a scholar working on Materials Chemistry, Atomic and Molecular Physics, and Optics and Surfaces, Coatings and Films. According to data from OpenAlex, M. Machado has authored 24 papers receiving a total of 309 indexed citations (citations by other indexed papers that have themselves been cited), including 12 papers in Materials Chemistry, 8 papers in Atomic and Molecular Physics, and Optics and 3 papers in Surfaces, Coatings and Films. Recurrent topics in M. Machado's work include Graphene research and applications (12 papers), Boron and Carbon Nanomaterials Research (12 papers) and Surface and Thin Film Phenomena (6 papers). M. Machado is often cited by papers focused on Graphene research and applications (12 papers), Boron and Carbon Nanomaterials Research (12 papers) and Surface and Thin Film Phenomena (6 papers). M. Machado collaborates with scholars based in Brazil, Spain and Germany. M. Machado's co-authors include Paulo C. Piquini, Е. В. Чулков, R. Mota, V. M. Silkin, S. Azevedo, T. Kar, P. M. Échenique, U. Höfer, Fernando Moraes and W. Berthold and has published in prestigious journals such as Physical Review B, Chemical Physics Letters and Surface Science.

In The Last Decade

M. Machado

21 papers receiving 299 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
M. Machado Brazil 11 199 103 76 45 32 24 309
S. Chakravarty United States 10 172 0.9× 115 1.1× 140 1.8× 5 0.1× 18 0.6× 21 309
J. K. Schoelz United States 10 287 1.4× 158 1.5× 85 1.1× 13 0.3× 6 0.2× 18 350
E. O. Popov Russia 11 270 1.4× 78 0.8× 140 1.8× 21 0.5× 15 0.5× 84 347
R. E. Stallcup United States 9 323 1.6× 102 1.0× 116 1.5× 23 0.5× 3 0.1× 25 394
Ivan S. Novikov Russia 8 375 1.9× 35 0.3× 84 1.1× 6 0.1× 9 0.3× 11 416
Hadley M. Lawler United States 8 293 1.5× 142 1.4× 107 1.4× 10 0.2× 5 0.2× 11 348
Ahmed Mehdaoui France 5 553 2.8× 281 2.7× 119 1.6× 21 0.5× 5 0.2× 12 584
C.-P. Chang United States 7 207 1.0× 35 0.3× 164 2.2× 23 0.5× 17 0.5× 15 373
М. М. Слепченков Russia 10 220 1.1× 58 0.6× 73 1.0× 51 1.1× 2 0.1× 77 305

Countries citing papers authored by M. Machado

Since Specialization
Citations

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

Fields of papers citing papers by M. Machado

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of M. Machado

This figure shows the co-authorship network connecting the top 25 collaborators of M. Machado. A scholar is included among the top collaborators of M. Machado 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 M. Machado. M. Machado 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.
Machado, M., et al.. (2025). Early Neuromuscular Electrical Stimulation and In‐Bed Leg Cycling Preserve Quadriceps Femoris Muscle Thickness in Critically Ill Patients. Physiotherapy Research International. 30(4). e70113–e70113.
2.
Machado, M., et al.. (2025). Veterinarians' knowledge and practices on animal Tungiasis in Bahia State, Northeast Brazil. Veterinary Parasitology Regional Studies and Reports. 67. 101394–101394.
3.
Ramos, Sérgio, et al.. (2012). Simulation of the Magnetic Induction Vector of a Magnetic Core to be Used in FFC NMR Relaxometry. Journal of Superconductivity and Novel Magnetism. 26(1). 133–140. 1 indexed citations
4.
Machado, M., T. Kar, & Paulo C. Piquini. (2011). The influence of the stacking orientation of C and BN stripes in the structure, energetics, and electronic properties of BC2N nanotubes. Nanotechnology. 22(20). 205706–205706. 29 indexed citations
5.
Azevedo, S. & M. Machado. (2009). First-principles study of structural and electronic properties of BxNyCznanocones. Nanotechnology. 20(11). 115709–115709. 5 indexed citations
6.
Azevedo, S., et al.. (2009). Electronic structure of boron nitride nanostructures doped with a carbon atom. The European Physical Journal B. 73(2). 211–214. 8 indexed citations
7.
Machado, M., I. A. Larkin, & Paulo C. Piquini. (2009). Electronic and structural properties of two mirrored boron-nitride nanocones with 240º disclination. Brazilian Journal of Physics. 39(1a). 239–241. 1 indexed citations
8.
Machado, M., Paulo C. Piquini, & R. Mota. (2005). The influence of the tip structure and the electric field on BN nanocones. Nanotechnology. 16(2). 302–306. 11 indexed citations
9.
Machado, M., W. Berthold, U. Höfer, Е. В. Чулков, & P. M. Échenique. (2004). Image-potential state lifetimes in Ar/Cu(100). Surface Science. 564(1-3). 87–92. 9 indexed citations
10.
Machado, M., Paulo C. Piquini, & R. Mota. (2004). Charge distributions in BN nanocones: electric field and tip termination effects. Chemical Physics Letters. 392(4-6). 428–432. 27 indexed citations
11.
Machado, M., R. Mota, & Paulo C. Piquini. (2003). Electronic properties of BN nanocones under electric fields. Microelectronics Journal. 34(5-8). 545–547. 29 indexed citations
12.
Machado, M. & Daniel Sánchez‐Portal. (2003). Van der Waals contribution to the inelastic atom-surface scattering. Journal of Electron Spectroscopy and Related Phenomena. 129(2-3). 213–218.
13.
Machado, M., Е. В. Чулков, V. M. Silkin, U. Höfer, & P. M. Échenique. (2003). Electron lifetimes in image-potential states at metal–dielectric interfaces. Progress in Surface Science. 74(1-8). 219–237. 22 indexed citations
14.
Machado, M., Paulo C. Piquini, & R. Mota. (2003). Electronic properties of selected BN nanocones. Materials Characterization. 50(2-3). 179–182. 14 indexed citations
15.
Machado, M., Asier Eiguren, E. V. Chulkov, & P. M. Échenique. (2003). Surface state quasiparticle dynamics at metal surfaces. Journal of Electron Spectroscopy and Related Phenomena. 129(2-3). 87–96. 2 indexed citations
16.
Mota, R., M. Machado, & Paulo C. Piquini. (2003). Structural and Electronic Properties of 240° Nanocones. Physica status solidi. C, Conferences and critical reviews/Physica status solidi. C, Current topics in solid state physics. 799–802. 10 indexed citations
17.
Ordejón, Pablo, Emilio Artacho, Raúl E. Cachau, et al.. (2001). Linear Scaling DFT Calculations with Numerical Atomic Orbitals. MRS Proceedings. 677. 10 indexed citations
18.
Чулков, Е. В., M. Machado, & V. M. Silkin. (2001). Inverse lifetime of the surface and image states on Au(111). Vacuum. 61(2-4). 95–100. 15 indexed citations
19.
Чулков, Е. В., V. M. Silkin, & M. Machado. (2001). Quasiparticle dynamics on metal surfaces. Surface Science. 482-485. 693–701. 60 indexed citations
20.
Machado, M., et al.. (1990). Ground return effect on wave propagation parameters of overhead power cables. IEEE Transactions on Power Delivery. 5(2). 825–832. 5 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by S. Chakravarty Breakdown of academic impact, for papers by J. K. Schoelz Breakdown of academic impact, for papers by E. O. Popov Breakdown of academic impact, for papers by R. E. Stallcup Breakdown of academic impact, for papers by Ivan S. Novikov Breakdown of academic impact, for papers by Hadley M. Lawler Breakdown of academic impact, for papers by Ahmed Mehdaoui Breakdown of academic impact, for papers by C.-P. Chang Breakdown of academic impact, for papers by М. М. Слепченков
Rankless by CCL
2026