Ground-state degeneracy and complex magnetism of geometrically frustrated Gd 2 Ir 0.97 Si 2.97
Date
2022-12-01
Authors
Chakraborty, Sudip
Gupta, Shuvankar
Pakhira, Santanu
Choudhary, Renu
Biswas, Anis
Mudryk, Yaroslav
Pecharsky, Vitalij K.
Mazumdar, Chandan
Major Professor
Advisor
Committee Member
Journal Title
Journal ISSN
Volume Title
Publisher
Iowa State University Digital Repository, Ames IA (United States)
Research Projects
Journal Issue
Series
IS-J 10968
Abstract
A new triangular-lattice intermetallic compound Gd2Ir0.97Si2.97 was successfully synthesized as single phase
by deliberately introducing vacancies. Theoretical analysis suggests that the ground state is competing with
several low-energy spin configurations due to magnetic frustration on a nearly ideal triangular lattice. Despite
a number of competing magnetic states, the compound exhibits long-range antiferromagnetic order at 16 K, a
long-range ferrimagnetic transition at 6.5 K, and a reentrant cluster-glass transition below Tf ∼ 3 K. The complex
magnetism in the compound could be correlated with competing antiferromagnetic and ferrimagnetic structures
predicted theoretically.
Comments
This article is published as Chakraborty, Sudip, Shuvankar Gupta, Santanu Pakhira, Renu Choudhary, Anis Biswas, Yaroslav Mudryk, Vitalij K. Pecharsky, Duane D. Johnson, and Chandan Mazumdar. "Ground-state degeneracy and complex magnetism of geometrically frustrated Gd 2 Ir 0.97 Si 2.97." Physical Review B 106, no. 22 (2022): 224427.
DOI: 10.1103/PhysRevB.106.224427.
Copyright 2022 American Physical Society.
Posted with permission.
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