Improving the precision of Hall effect measurements using a single-crystal copper probe.
The circuitry and components of a Hall measurement kit were replaced with single-crystal copper (SCC) wires and parts prepared by a novel wire fabrication process. This process preserved the grain-free structure of SCC grown by the Czochralski method. The new kit was used to determine, with greatly improved precision, the electrical coefficients such as carrier density and mobility, establish the reproducibility of the measured values, and define the semiconductor type. The observed reduction in electrical signal losses and distortion has been attributed to grain boundary elimination.
Department of Nano Fusion Technology, Pusan National University, Miryang, South Korea.
Su-Young
SY
Cha
Jong Moon
JM
Shin
Su Jae
SJ
Kim
Sang Eon
SE
Park
Chae Ryong
CR
Cho
Yong Chan
YC
Cho
Se-Young
SY
Jeong