By a News Reporter-Staff News Editor at Journal of Technology -- A new study on Sensor Research is now available. According to news reporting originating in Taejon, South Korea, by VerticalNews journalists, research stated, "A flexible magnetoresistance (MR) device is fabricated through the hybrid process of embedding an Ag nanoparticle electrode by thermal imprinting and magnetic multilayer sensor element by sputtering on a polyethylene naphthalate (PEN) substrate. The MR signal profiles for a ring type sensor deposited on the PEN substrate show typical anti-symmetric curves centered for the field H = 0, and the maximum signal and its field sensitivity are nearly the same as those of sensors deposited on Si and glass substrates."
The news reporters obtained a quote from the research from Korea Institute Machinery and Materials, "The root mean square (rms) roughnesses and magnetic properties of magnetic thin film deposited on the different substrates show that H-ex was decreased with increasing roughness. Further, MR change with temperature had no significant effect on the sensor performance. The stability of Au electrode and Ag paste electrode were compared during the bending of MR sensor, revealing the cracking of Au electrode above 45 degrees. However, Ag paste electrode was stable up to 90 degrees. The field sensitivity of the MR signal for the full range of fields is inversely proportional to the effective anisotropy field, which is the sum of exchange-bias and stress-induced anisotropy fields."
According to the news reporters, the research concluded: "As a whole, the field sensitivity of MR signal depends on bending stress at the sensor position."
For more information on this research see: Highly Flexible Magnetoelectronic Device Integrated With Embedded Ag Nanoparticle Electrode. IEEE Sensors Journal, 2013;13(10):3957-3961. IEEE Sensors Journal can be contacted at: Ieee-Inst Electrical Electronics Engineers Inc, 445 Hoes Lane, Piscataway, NJ 08855-4141, USA. (Institute of Electrical and Electronics Engineers - www.ieee.org/; IEEE Sensors Journal - ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=7361)
Our news correspondents report that additional information may be obtained by contacting S. Oh, Korea Inst Machinery & Mat, Dept. of Printed Elect, Taejon 305343, South Korea. Additional authors for this research include J.S. Yu, J. Lim, M. Jadhav, T.M. Lee, D. Kim and C. Kim.
Keywords for this news article include: Asia, Taejon, South Korea, Sensor Research
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