A scientist’s position in the ranking is determined by their D-index (Discipline H-index), a refined measure that considers only papers and citation metrics pertinent to the specific discipline under examination — in this case, Materials Science. This approach ensures that the ranking reflects a researcher’s impact and productivity within their specialized field rather than general scholarly output.
Scope of Research and Eligibility Criteria
The ranking process began by examining 279,971 scientist profiles aggregated from a diverse array of bibliometric data repositories across all scientific disciplines. From this extensive pool, 2,000 scientists identified within the Materials Science domain were specifically analyzed.
To qualify for inclusion in the ranking, a scientist’s D-index had to meet or exceed a threshold of 40, ensuring the recognition of only those with significant disciplinary impact. Additionally, the majority of a qualifying scientist’s tier publications had to be in the area of Materials Science, confirming their primary dedication to this field. Consideration was also given to documented awards and notable achievements relevant to Materials Science, emphasizing scholarly excellence beyond bibliometric data alone.
The D-index threshold is dynamically adjusted in increments of 10, calibrated according to the estimated total number of scholars in each discipline. This methodology guarantees that the top 1% of leading researchers are consistently incorporated into the ranking. Furthermore, eligibility requires that the proximity between a scientist’s general (overall) H-index and their D-index be no greater than 30%, ensuring strong alignment between a researcher’s general impact and their specialized output.
Additional Verification Practices
Recognizing that raw bibliometric data alone cannot serve as an absolute measure of scholarly output, the Research.com team undertook rigorous manual verification of all scientist profiles included in the ranking. These profiles were cross-correlated against publications indexed in a wide spectrum of reputable sources to confirm accuracy and relevance.
While the number of papers published in prominent journals and conference proceedings does not directly influence a researcher’s ranking position, it provides a valuable secondary signal of their contribution to the advancement of Materials Science. This reinforces the robustness of the ranking as a reflection of true scholarly impact.
The position within the ranking is established exclusively via the researcher’s D-index, calculated using data from OpenAlex and CrossRef—two of the most prominent, extensively curated bibliometric databases accessible to the global research community. For detailed insights into the methodology and data integration processes employed, we invite readers to visit our methodology page.
Research.com’s Mission and Vision
At Research.com, our overarching mission is to inspire researchers, corporations, and policymakers worldwide to closely monitor the trajectories of leading experts. We provide an authoritative and transparent platform that reveals who the foremost experts are within specific scientific disciplines, across different countries, and even at the level of individual research institutions.
By highlighting the achievements and impact of top scholars in Materials Science and beyond, we aim to foster collaboration, inform strategic investment in science and technology, and support evidence-based decision-making for the advancement of global scientific knowledge.
