First principle study on spin seebeck effect in Fe/Co and Co/Pt layers of thin films

Name: Pirapat Waritkraikul

Organization : Thammasat University. Thammasat School of Engineering

Name: Annop Ektarawong

Organization : Chulalongkorn University. Faculty of Science

Name: Wutthikrai Busayaporn

Organization : Synchrotron Light Research Institute (Public Organization)

Name: Poramed Wongjom

Organization : Thammasat University. Faculty of Science and Technology

Name: Wanchai Pijitrojana

Organization : Thammasat University. Thammasat School of Engineering

Email : pwanchai@engr.tu.ac.th

keyword: Spin Seebeck Effect

LCSH: Density functionals

LCSH: Spintronics

Abstract: This research is focusing to examining the electronic structure and electrical properties of the Fe/Co and Co/Pt systems in comparison with the Fe/Pt system through the use of Density Functional Theory (DFT). The results indicate that the Fe/Co and Co/Pt systems exhibit significantly less electrical mismatch than the Fe/Pt system, as evidenced by a broader distribution of the Total Density of States (TDOS) near the Fermi energy level. Further analysis of the Projected Density of States (PDOS) for the d orbitals of Fe and Co in the Fe/Co system, and of Co and Pt in the Co/Pt system, confirms that the predominant characteristics of both systems are driven by the influence of d orbitals. This insight is critical for the selection of materials for the investigation of the Spin Seebeck Effect (SSE), particularly in understanding the electrical conductivity and magnetic properties of the materials of interest prior to experimental trials. This study deepens the understanding of the relationship between electronic structure and the electrical and magnetic properties of materials, which is vital for the design and application of materials in spintronics technology, especially in studying the Spin Seebeck Effect. This phenomenon involves the conversion of thermal energy into electrical energy using the spin of electrons.

King Mongkut's University of Technology North Bangkok. Central Library

Address: BANGKOK

Email: library@kmutnb.ac.th

Created: 2567

Modified: 2024-10-10

Issued: 2024-10-10

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BibliograpyCitation : ใน มหาวิทยาลัยนครพนม. คณะเทคโนโลยีอุตสาหกรรม. การประชุมวิชาการเครือข่ายวิศวกรรมไฟฟ้า ครั้งที่ 15 (EENET 2024) (pp.397-400). นครราชสีมา : มหาวิทยาลัยเทคโนโลยีราชมงคลอีสาน

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