Bulletin of the American Physical Society
2023 APS March Meeting
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session G39: 5d/4d Transition Metal Systems II
11:30 AM–2:06 PM,
Tuesday, March 7, 2023
Room: Room 231
Sponsoring
Unit:
DMP
Chair: Gang Cao, University of Colorado Boulder
Abstract: G39.00010 : Strategy to Develop the High-Performance Thermomagnetic Gd-Si-Ge Alloys for Low-grade Waste Heat Energy Harvesting*
1:42 PM–1:54 PM
Presenter:
saurabh Singh
(Penn State University Park PA USA)
Authors:
saurabh Singh
(Penn State University Park PA USA)
Na Liu
(Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA 16802, USA.)
Amin Nozariasbmarz
(Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA 16802, USA.)
Bed Poudel
(Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA 16802, USA.)
Shashank Priya
(Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA 16802, USA.)
In order to further improvement in the magnetic and thermal properties of Gd5Si2.4Ge1.6 compound, a constructive screening of the best composition with doping at Gd site is desirable. In this direction the thermomagnetic properties are estimated by partially filled 3d, 4d, and 4f elements from transition metal and rare-earth elements by using the first principle modeling based tools implemented in KKR-CPA and VASP codes. Computational results show that by co-doping of V and Co element at Gd site the magnetic properties improves by 56 % as compared to un-doped Gd5Si2.4Ge1.6 compound.
*The authors acknowledge the financial support from the DARPA TE3 program.
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