eprintid: 1568
rev_number: 11
eprint_status: archive
userid: 243
dir: disk0/00/00/15/68
datestamp: 2016-05-23 01:28:55
lastmod: 2016-05-23 01:31:39
status_changed: 2016-05-23 01:28:55
type: conference_item
metadata_visibility: show
creators_name: Le, Khac Quynh
creators_name: Bui, Dinh Tu
creators_name: D., Q. Viet
creators_name: N., T. Thuy
creators_name: Nguyen, Xuan Toan
creators_name: Tran, Mau Danh
creators_name: Nguyen, Huu Duc
creators_name: Do, Thi Huong Giang
creators_id: buidinhtu@vnu.edu.vn
creators_id: ducnh@vnu.edu.vn
creators_id: giangdth@vnu.edu.vn
title: Research, manufacturing optimal structure sensor measure the low magnetic field structure Wheatstone bridge base on anistropic magnetoresistance effects
ispublished: pub
subjects: Phys
divisions: fac_physic
abstract: Fabrication and study of sensors applied to measure low magnetic fields whose the Wheatstone structure basing on anisotropic magnetoresistance effects. The configuration optimatization of sensors was conducted by varying the thickness of NiFe layers (5, 10, 15 nm) as well as the structure of resistive bars. Two types of sensor with the sizes of 50×250 μm and 10×250 μm were examined. The results revealed the significant dependence of sensor signals on sensor shape anisotropy. The resistivie difference (ΔR), the sensitity (SH) and the shape anisotropy were observed to increase as decreasing the thickness of NiFe layer. The highest values (ΔR and SH were obtained to be 10Ω and 0.88 Ω/Oe (~ 0,88 mV/Oe), respectively) were found in the sensor with the size of 10×250 μm and 5 nm-thickness. The function of the output voltage versus the Earth's magnetic field and the sensor axis was fitted to be V = A + B*cosα (A, B are empirical constants), and Sα = 8.8 (μV/deg.)
date: 2016-03-26
date_type: published
full_text_status: public
pres_type: poster
event_title: SW4PHD: the 2016 Scientific Workshop for PhD Students
event_location: Hanoi
event_dates: 26 March 2016
event_type: workshop
refereed: FALSE
citation:   Le, Khac Quynh and Bui, Dinh Tu and D., Q. Viet and N., T. Thuy and Nguyen, Xuan Toan and Tran, Mau Danh and Nguyen, Huu Duc and Do, Thi Huong Giang  (2016) Research, manufacturing optimal structure sensor measure the low magnetic field structure Wheatstone bridge base on anistropic magnetoresistance effects.  In: SW4PHD: the 2016 Scientific Workshop for PhD Students, 26 March 2016, Hanoi.     
document_url: https://eprints.uet.vnu.edu.vn/eprints/id/eprint/1568/1/PhD%202016_Le%20Khac%20Quynh_K17.pdf