Emergent chirality in a polar meron to skyrmion phase transition

no code implementations • 12 Jan 2021 • Yu-Tsun Shao, Sujit Das, Zijian Hong, Ruijuan Xu, Swathi Chandrika, Fernando Gómez-Ortiz, Pablo García-Fernández, Long-Qing Chen, Harold Y. Hwang, Javier Junquera, Lane W. Martin, Ramamoorthy Ramesh, David A. Muller

With the discovery of topologically-stable polar skyrmions, it is of both fundamental and practical interest to understand the microscopic nature and the possibility of temperature- and strain-driven phase transitions in ensembles of such polar skyrmions.

Mesoscale and Nanoscale Physics Materials Science

Consensus and Consistency Level Optimization of Fuzzy Preference Relation: A Soft Computing Approach

no code implementations • 26 Aug 2014 • Sujit Das, Samarjit Kar

In group decision making (GDM) problems fuzzy preference relations (FPR) are widely used for representing decision makers' opinions on the set of alternatives.

Decision Making Relation