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cond-mat.mtrl-sci2025★ 3 cited
First-principles calculation of higher-order elastic constants from divided differences
Ruvini Attanayake, Umesh C. Roy, Abhiyan Pandit +1
A method is presented to calculate from first principles the higher-order elastic constants of a solid material. The method relies on finite strain deformations, a density function…
cond-mat.str-el2025
New Methods for Critical Analysis: Revealing the Simultaneous Existence of Universality Classes in Nontrivial Magnetic Systems
Harish Chandr Chauhan, Umesh C. Roy, Shovan Dan +2
In magnetic systems, the microscopic constituents exhibit power law behavior near the paramagnetic transition temperature, . The critical exponents (CEs) associated with the p…