Data Sources and Citation Metrics
The 5th edition of the Research.com Best Materials Science Scientists in Malta Ranking is primarily based on comprehensive bibliometric data obtained from OpenAlex and CrossRef, supplemented by multiple other authoritative data sources. These databases represent some of the most prominent and well-established repositories in the research community, ensuring the reliability and breadth of the underlying data. The bibliometric data, including citation counts and publication records, were collected on January 12, 2026. Each scientist's position in the ranking is determined by their D-index (Discipline H-index), a refined metric that specifically includes papers and citation data relevant only to the examined discipline of Materials Science, thereby providing a focused evaluation of disciplinary impact.
Scope of Research and Inclusion Criteria
The ranking was derived from an extensive examination of 279,971 scientist profiles across all disciplines sourced from a variety of bibliometric databases. Among these, 2 scientists specializing in Materials Science were identified and evaluated in detail. To qualify for inclusion, researchers had to meet a minimum D-index threshold of 40, ensuring that only highly impactful scholars were considered. Additionally, a majority of the scientist's tier publications—those most influential and heavily cited—must be within the domain of Materials Science. Awards and notable achievements in the field were also taken into account as supplementary indicators of scholarly excellence.
The threshold for the D-index is dynamically adjusted in increments of 10 based on the estimated size of the scientific community within each discipline. This approach guarantees that the ranking consistently represents the top 1% of leading scholars. Furthermore, a proximity criterion was applied, requiring the difference between a scientist's general H-index and their Materials Science-specific D-index to be 30% or less, thus verifying the focus and depth of their research contributions in this discipline.
Verification and Validation Practices
Recognizing the limitations of raw bibliometric data as a sole evaluative tool, the Research.com team employed rigorous manual verification processes. All scientist profiles were cross-checked against a wide range of trustworthy sources, including publication records in prominent journals and conference proceedings. Although the number of papers published in these venues does not directly affect a researcher's ranking position, such metrics serve as a valuable secondary signal of a scientist’s influence and contributions within Materials Science.
The final ranking positions are established through the carefully calculated D-index based on data aggregated from OpenAlex and CrossRef, both of which are among the most comprehensive and widely trusted bibliometric platforms available. For comprehensive details on the ranking methodology, readers are encouraged to visit our methodology page.
Research.com’s Mission and Vision
At Research.com, our mission is to empower researchers, academic institutions, industry leaders, and policymakers worldwide by providing clear, data-driven insights into where leading experts are focusing their efforts. By identifying and promoting researchers who demonstrate outstanding performance in specific scientific disciplines, countries, and institutions, we strive to foster collaboration, inform strategic decision-making, and elevate the global scientific community. This ranking initiative reflects our commitment to meticulous scholarship and transparent assessment, contributing to a more informed and connected research ecosystem.
