RIS ID
74574
Abstract
Magnesium diboride (MgB2) has a transition temperature (Tc) of ~40 K, i.e., about 4 times higher than niobium (Nb). Studies in the last 3 years have shown that it could have about one order of magnitude less RF surface resistance (Rs) than Nb at 4 K and seems to have much less power dependence than high-Tc materials such as YBCO. However, it was also found that it will depend on the way you deposit the film. The result from on-axis pulsed laser deposition (PLD) showed rapid increase in Rs with higher surface magnetic fields compared to the film deposited with reactive evaporation method.
COinS
Publication Details
Tajima, T., Canabal, A., Zhao, Y., Romanenko, A., Nantista, C., Tantawi, S., Phillips, L., Iwashita, Y., Campisi, I. & Moeckly, B. (2006). Tests on MgB2 for application to SRF cavities. EPAC 2006 (pp. 481-483).