Journal of Mathematical and Fundamental Sciences
Vol. 48 No. 3 (2016)

A Novel Ternary CoFe2O4/CuO/CoFe2O4 as a Giant Magnetoresistance Sensor

Ramli Ramli (Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Padang, Jalan Prof. Hamka, Padang 25131, Indonesia)
Ambran Hartono (Department of Physics, Universitas Islam Negeri Syarif Hidayatullah Jakarta, Jalan Ir. H. Juanda 95, Ciputat, Banten 15412, Indonesia)
Edi Sanjaya (Department of Physics, Universitas Islam Negeri Syarif Hidayatullah Jakarta, Jalan Ir. H. Juanda 95, Ciputat, Banten 15412, Indonesia)
Ahmad Aminudin (Department of Physics Education, Faculty of Mathematics and Natural Sciences Universitas Pendidikan Indonesia, Jalan Dr. Setiabudi 229, Bandung 40154, Indonesia)
Khairurrijal Khairurrijal (Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jalan Ganesha 10, Bandung 40132, Indonesia)
Freddy Haryanto (Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jalan Ganesha 10, Bandung 40132, Indonesia)
Cuk Imawan (Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Kampus UI Depok, Jawa Barat 16424, Indonesia)
Mitra Djamal (Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jalan Ganesha 10, Bandung 40132, Indonesia Department of Physics, Institut Teknologi Sumatera, Jalan Terusan Jenderal Ryacudu, Lampung Selatan 35365, Indo)

Article Info

Publish Date
30 Dec 2016

Abstract

This paper reports the results of a study relating to the synthesis of a novel ternary CoFe2O4/CuO/CoFe2O4 thin film as a giant magnetoresistance (GMR) sensor. The CoFe2O4/CuO/CoFe2O4 thin film was prepared onto silicon substrate via DC magnetron sputtering with the targets facing each other. X-ray diffraction was used to determine the structure of the thin film and a 4-point method was used to measure the MR ratio. The GMR ratio is highly dependent on the ferrimagnetic (CoFe2O4) and nonmagnetic (CuO) layer thickness. The maximum GMR ratio at room temperature obtained in the CoFe2O4/CuO/CoFe2O4 thin film was 70% when the CoFe2O4 and the CuO layer had a thickness of 62.5 nm and 14.4 nm respectively.

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Journal Info
Journal of Mathematical and Fundamental Sciences
Website

Abbrev

jmfs

Publisher

Institut Teknologi Bandung

Subject

Astronomy Chemistry Earth & Planetary Sciences Mathematics Physics

Description

Journal of Mathematical and Fundamental Sciences welcomes full research articles in the area of Mathematics and Natural Sciences from the following subject areas: Astronomy, Chemistry, Earth Sciences (Geodesy, Geology, Geophysics, Oceanography, Meteorology), Life Sciences (Agriculture, Biochemistry, ...