A scientist’s position within the ranking is established based on their D-index (Discipline H-index), a discipline-specific adaptation of the traditional H-index. The D-index includes only papers and corresponding citation metrics that pertain to the examined discipline — in this case, Materials Science — ensuring that the ranking accurately reflects each researcher’s impact in their specialized field.
Scope of Research and Selection Criteria
Our evaluation encompassed a total of 279,971 scientist profiles identified from a variety of bibliometric data sources across all disciplines, among which 3,460 were researchers specifically affiliated with Materials Science. To qualify for inclusion in the ranking, a scientist’s D-index had to be at least 40, with a majority of their tier publications concentrated in the area of Materials Science. Additionally, awards and notable achievements within the field were taken into account as supplementary criteria.
The threshold for the D-index is calibrated as an increment of 10 depending on the estimated total number of scholars for each discipline, ensuring that the ranking consistently includes the top 1% of leading researchers within Materials Science. Furthermore, to maintain disciplinary relevance, a maximum proximity of 30% between a scientist’s general H-index and their D-index was required, promoting coherence between overall impact and subject-specific influence.
Verification and Validation Practices
At Research.com, we are cognizant that raw bibliometric data alone cannot comprehensively evaluate the scholarly output and influence of researchers. Therefore, all scientist profiles included in this ranking were manually verified and cross-correlated against publications recorded in a broad spectrum of trustworthy and independent sources. This meticulous verification process enhances the credibility and accuracy of the ranking.
Although not a direct factor determining a researcher’s ranking position, the volume of publications in prominent journals and conference proceedings is recognized as a valuable secondary signal of a scientist’s contributions to their specific area of science. The primary metric determining rank is the D-index, computed based on citation and publication data aggregated from OpenAlex and CrossRef.
For a detailed overview of the data sources, processing techniques, and ranking methodology, we invite readers to visit our methodology page.
Research.com’s Mission and Vision
At Research.com, our mission is to inspire and empower researchers, academic institutions, companies, and policymakers worldwide to explore the trajectories of leading experts in various scientific domains. By providing a transparent and rigorously developed indication of who the foremost specialists are in fields such as Materials Science, across different countries and research organizations, we aim to foster collaboration, strategic decision-making, and recognition within the global scientific community.
We are committed to producing rankings that rest on careful, detail-oriented research practices to ensure their integrity and utility, ultimately contributing to a more connected and informed scientific ecosystem.
