文摘
We examine the temperature dependence of the bubble phase using the resonance in the real diagonal conductivity, Re[σxx], discovered recently by Lewis et al. (Phys. Rev. Lett. 89 (2002) 136804). The peak frequency, fpk, of the resonance at base temperature of 30mK is as much as 50 % larger than at the highest temperature where a resonance is discernable. The resonance vanishes above a temperature of 80–100mK.