PENGARUH MEDAN LISTRIK TERHADAP SIFAT ELEKTRONIK, MAGNETIK, DAN TERMOELEKTRIK MATERIAL NiCl2 MONOLAYER BERBASIS DENSITY FUNCTIONAL THEORY

MUHAMMAD ANDRIANTO ABDILLAH, . (2023) PENGARUH MEDAN LISTRIK TERHADAP SIFAT ELEKTRONIK, MAGNETIK, DAN TERMOELEKTRIK MATERIAL NiCl2 MONOLAYER BERBASIS DENSITY FUNCTIONAL THEORY. Sarjana thesis, UNIVERSITAS NEGERI JAKARTA.

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Abstract

MUHAMMAD ANDRIANTO ABDILLAH. Pengaruh Medan Listrik Terhadap Sifat Elektronik, Magnetik, dan Termoelektrik Material NiCl2 Monolayer Berbasis Density Functional Theory. Dibawah Bimbingan TEGUH BUDI PRAYITNO, EDI SUPRAYOGA¬ Nikel diklorida NiCl2 monolayer dengan sifatnya, baik dari segi struktur kristal, elektronik, dan magnetiknya, dianggap menjadi salah satu alternatif material yang berpotensi untuk pengembangan aplikasi spintronik. Medan listrik eksternal yang diterapkan pada material dengan tujuan dapat mengontrol sifat listrik dan magnet merupakan hal yang sanagt penting dalam aplikasi perangkat spintronik. Pada penelitian ini, telah dilakukan perhitungan non-kolinier menggunakan teori fungsi kerapatan (DFT) untuk menganalisa pengaruh interaksi spin-orbit dan medan listrik eksternal yang diberikan pada NiCl2 monolayer. Perhitungan tersebut menunjukkan bahwa interaksi spin-orbit dan penerapan variasi medan listrik eksternal menyebabkan terjadinya pengurangan celah pita energi di titik perubahan sifat listrik NiCl2 monolayer dari semikonduktor tidak langsung ke logam dan menghilangkan sifat magnetik atom pusatnya. Temuan kami menunjukkan bahwa interaksi dan medan listrik eksternal untuk pengembangan perangkat spintronik berperan penting dalam mengontrol sifat material NiCl2 monolayer. Kata Kunci: NiCl2 monolayer, Density Functional Theory, Spin-Orbit Coupling, medan listrik eksternal, spintronik. **************** MUHAMMAD ANDRIANTO ABDILLAH. The Influence of Electric Field on the Electronic, Magnetic, and Termoelectric Properties of NiCl2 Monolayer Materials Based on Density Functional Theory. Under the Supervised by TEGUH BUDI PRAYITNO, EDI SUPRAYOGA. The potential use of nickel dichloride (NiCl2) monolayer, with its unique characteristics in terms of crystal structure, electronics, and magnetism, has been identified in the field of spintronics. The manipulation of its electrical and magnetic properties through the application of an external electric field is vital for the development of spintronic devices. In this research, non-collinear calculations employing density functional theory (DFT) were conducted to examine the impact of spin-orbit interaction and external electric fields on the NiC2 monolayer. The calculations revealed that the interaction between spin and orbit, as well as the varying external electric fields, resulted in a decrease in the energy gap at the Γ point, a transformation of NiCl2 monolayer's electrical characteristics from an indirect semiconductor to a metal, and the elimination of magnetic properties associated with its central atom. These findings emphasize the significant role played by the interaction and external electric fields in controlling the properties of NiCl2 monolayer for the advancement of spintronic devices. Keywords: NiCl2 monolayer, Density Functional Theory, Spin-Orbit Coupling, external electric field, spintronics.

Item Type:	Thesis (Sarjana)
Additional Information:	1). Dr. Teguh Budi Prayitno, M.Si. ; 2). Dr. Edi Suprayoga
Subjects:	Sains > Fisika
Divisions:	FMIPA > S1 Fisika
Depositing User:	Users 18875 not found.
Date Deposited:	01 Sep 2023 02:07
Last Modified:	01 Sep 2023 02:07
URI:	http://repository.unj.ac.id/id/eprint/39931

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