The citation-based metrics utilized to establish the ranking were gathered on January 12, 2026. A scientist’s position in the ranking is determined based on their Discipline H-index (D-index), which specifically measures research impact by including only papers and citation metrics pertinent to the Materials Science discipline. This discipline-focused approach ensures the ranking reflects subject-area expertise rather than general scholarly output.
Scope of Research and Qualification Criteria
The ranking process involved the examination of 279,971 scientist profiles identified across a broad spectrum of bibliometric data sources, spanning all scientific disciplines globally. Specifically for Materials Science, 2 scientists within Malta were evaluated.
To qualify for inclusion, a scientist's D-index had to reach a minimum threshold of 40, indicating a significant impact within the field. Furthermore, a majority of their tier publications needed to be anchored in Materials Science. Complementing bibliometric thresholds, awards and achievements in the field were also factored into the evaluation.
The D-index qualification threshold is calibrated in increments of 10 according to the estimated total number of scholars in each discipline. This methodology guarantees that the top 1% of leading experts per discipline are included in the ranking. Additionally, candidates must demonstrate a proximity of 30% or less between their general H-index and their Materials Science-specific D-index, ensuring their prominence is consistent within the discipline.
Verification Practices and Methodological Rigor
The researchers and analysts behind this ranking are acutely aware that raw bibliometric data alone cannot serve as an absolute measure of scholarly output or impact. To enhance accuracy and credibility, every scientist profile was manually verified and cross-referenced against publications from a wide range of trustworthy and institutional sources.
While not directly influencing the ranking position, the number of papers published in prominent journals and conference proceedings is considered a valuable secondary signal reflecting a scientist's contribution to Materials Science research.
Positions within the ranking are fundamentally established through each researcher’s D-index derived from records curated in OpenAlex and CrossRef—arguably the most prominent and well-established bibliometric databases accessible to the research community today.
For a detailed description of the methodology employed, we encourage readers to visit our methodology page.
Research.com’s Mission Behind the Ranking
The overarching mission of Research.com in creating this ranking is to motivate researchers, companies, and policymakers worldwide to gain an insightful understanding of where leading experts are directing their efforts. By providing a trusted platform, we offer the global scientific community a way to identify and recognize top researchers in specific disciplines, geographic regions, and research institutions.
Through rigorous, transparent, and meticulous work, this ranking aspires to foster collaboration, inform strategic research directions, and highlight centers of excellence in Materials Science both within Malta and beyond.
