eprintid: 2860
rev_number: 17
eprint_status: archive
userid: 333
dir: disk0/00/00/28/60
datestamp: 2017-12-27 01:25:17
lastmod: 2018-01-10 08:37:30
status_changed: 2018-01-10 08:37:30
type: conference_item
metadata_visibility: show
creators_name: Bui, Dinh Tu
creators_name: Pham, Duc Thang
creators_name: Le, Khac Quynh
creators_name: Le, Viet Cuong
creators_name: Do, Thi Huong Giang
creators_name: Nguyen, Huu Duc
creators_id: buidinhtu@vnu.edu.vn
creators_id: pdthang@vnu.edu.vn
creators_id: cuonglv@vnu.edu.vn
creators_id: giangdth@vnu.edu.vn
creators_id: ducnh@vnu.edu.vn
title: Enhancement of the sensitivity of magnetic field sensor based on anisotropic magetoresistance effect in NiFe thin films
ispublished: pub
subjects: Phys
divisions: fac_physic
abstract: The sensitivity magnetic sensors have become essential for applications in many fields such as biomedicine, computer memories, geophysics and etc. It is known that the sensitivity of magnetic anisotropy sensor depends on current density as well as the rotation of the magnetic moments corresponded to the external magnetic field. In this study, we fabricated and investigated a number of different configurations of resistor bar in the Wheatone bridge sensor. The samples were made in magnetic field pins with varying intensity from 0 to 900 Oe. Furthermore, different shapes of resistor, as in circle, rectangle, ellipse, were fabricated with the film thickness of 15 nm. The analyzed results indicated that the rotation of the magnetic moments occurs rapidly and sharp in the small magnetic field (0 - 3 Oe) with samples fabricated in the high magnetic field pinned. The strong magnetic anisotropy was also observed in the rectangular configuration. In addition, the sensors have been optimized for measuring small magnetic field.
date: 2017-10
date_type: published
full_text_status: public
pres_type: poster
event_title: FSM 2017
event_location: German
event_dates: 2017
event_type: conference
refereed: FALSE
citation:   Bui, Dinh Tu and Pham, Duc Thang and Le, Khac Quynh and Le, Viet Cuong and Do, Thi Huong Giang and Nguyen, Huu Duc  (2017) Enhancement of the sensitivity of magnetic field sensor based on anisotropic magetoresistance effect in NiFe thin films.  In: FSM 2017, 2017, German.     
document_url: https://eprints.uet.vnu.edu.vn/eprints/id/eprint/2860/1/Full_Program_FMS2017_Final.pdf