TY - JOUR
T1 - Microstructural and electrical characterization of Joule heat welds in ultrathin Pt wires
AU - Tohmyoh, Hironori
AU - Fujimori, Masato
N1 - Funding Information:
The authors gratefully acknowledge Professor Masumi Saka for valuable discussions throughout this work. This work was supported by The Grant-in-Aid for Young Scientists (A) No. 21686012 and by the Grant-in-Aid for Scientific Research (B) No. 23360050 .
PY - 2012/9
Y1 - 2012/9
N2 - This paper reports on the structural and electrical characteristics of Joule heat welds in ultrathin Pt wires with diameters of 600-800 nm. The wires have a bamboo structure where the crystal grains are aligned only in the axial direction. They were welded together in a self-completed manner in air by Joule heating. The electrical resistance of the welded wire system was measured using a potential drop technique. It was found by transmission electron microscope observations that the region affected by welding was very narrow and it appeared that a new grain boundary had been created in this region. Moreover, the welds were found to have good electrical characteristics and the electrical resistance at the weld depended on its cross-sectional area.
AB - This paper reports on the structural and electrical characteristics of Joule heat welds in ultrathin Pt wires with diameters of 600-800 nm. The wires have a bamboo structure where the crystal grains are aligned only in the axial direction. They were welded together in a self-completed manner in air by Joule heating. The electrical resistance of the welded wire system was measured using a potential drop technique. It was found by transmission electron microscope observations that the region affected by welding was very narrow and it appeared that a new grain boundary had been created in this region. Moreover, the welds were found to have good electrical characteristics and the electrical resistance at the weld depended on its cross-sectional area.
UR - http://www.scopus.com/inward/record.url?scp=84869041380&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84869041380&partnerID=8YFLogxK
U2 - 10.1016/j.physe.2012.09.003
DO - 10.1016/j.physe.2012.09.003
M3 - Article
AN - SCOPUS:84869041380
SN - 1386-9477
VL - 46
SP - 33
EP - 37
JO - Physica E: Low-Dimensional Systems and Nanostructures
JF - Physica E: Low-Dimensional Systems and Nanostructures
ER -