A scientist’s position in the ranking is determined by their D-index (Discipline H-index), a refined metric that considers only those publications and related citations falling within the examined discipline, ensuring that our assessment reflects deep expertise and impact in Materials Science specifically rather than a researcher’s overall citation profile.
Scope of Research and Inclusion Criteria
The ranking process began with a broad examination of 279,971 scientist profiles identified from a variety of bibliometric sources spanning all research disciplines. Within this extensive dataset, 3 scientists were identified specifically as candidates in the Materials Science discipline. To qualify for inclusion in the Materials Science ranking, each scientist was required to meet a minimum D-index of 40, and a majority of their top-tier publications needed to be concentrated in Materials Science. Furthermore, awards and notable achievements within the field were incorporated as a qualitative factor to support ranking decisions.
The threshold for the D-index is dynamically adjusted in increments of 10 according to the estimated total number of scholars in each discipline, ensuring a focus on the top 1% of leading researchers within their respective fields. Additionally, qualifying scientists maintain proximity between their general H-index and D-index of no more than 30%, reflecting consistent expertise in Materials Science relative to their broader research output.
Verification and Validation Practices
While bibliometric data provide a foundational framework for the ranking, we recognize that raw metrics alone cannot fully capture the scholarly contributions of researchers. Therefore, all candidate profiles underwent meticulous manual verification and cross-correlation against an array of trustworthy publication sources. This diligence assures the reliability of the profiles considered.
Although not employed as a direct factor in determining rank, the volume of publications in prominent journals and high-impact conference proceedings was reviewed as an important secondary indicator of a scientist’s contribution to the discipline.
Ultimately, the ranking positions are assigned using the D-index values derived from data in OpenAlex and CrossRef, which remain the most prominent and credible bibliometric databases accessible to the global research community. For a detailed explanation of the comprehensive methodology used, we encourage readers to visit our methodology page.
Research.com’s Mission and Vision
At Research.com, our mission is to empower researchers, academic institutions, industry stakeholders, and policymakers worldwide by providing transparent, data-driven insights into where top scientific expertise is concentrated and advancing. By illuminating the leading experts in specific fields, countries, and institutions, we strive to foster collaboration, guide research investments, and ultimately accelerate scientific progress.
This ranking reflects our commitment to meticulous, unbiased, and comprehensive assessment practices, crafted with input from specialists to ensure credibility and meaningful impact within the scientific community.
