|
|
Article: Study findings from C. Kurter et al provide new insights into applied superconductivity.
- Article from:
- Electronics Newsweekly
- Article date:
- August 26, 2009
CopyrightCOPYRIGHT 2009 NewsRX. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
|
According to recent research from the United States, "We present a thermal analysis of a patterned mesa on a Bi2Sr2CaCu2O8 (Bi2212) single crystal that is based on tunneling characteristics of the c-axis stack of 800 intrinsic Josephson junctions in the mesa. Despite the large mesa volume (e.g., 40 x 300 x 1.2 mu m(3)) and power dissipation that result in self-heating and backbending of the current-voltage curve (I-V), there are accessible bias conditions for which significant polarized THz-wave emission can be observed."
"We estimate the mesa temperature by equating the quasiparticle resistance, R-qp(T), to the ratio V/I over the entire I-V including the ...