We report the experimental observation of a magnetic-field-tuned superconductor-insulator transition (SIT) in ultrathin TiN films. The low temperature transport properties of these films show scaling behavior consistent with a transition driven by quantum phase fluctuations in two-dimensional superconductor. The magnetoresistance reveals peak and a subsequent decrease in fields higher than the critical field. The temperature dependences of the isomagnetic resistance data on the high-field side of the SIT have been analyzed and the transition from insulating to metallic phase is found, with at high fields the zero-temperature asymptotic value of the resistance being equal to h/e^2.
@article{arxiv.cond-mat/0210250,
title = {High-field side of Superconductor-Insulator Transition},
author = {Tatyana I. Baturina and D. R. Islamov and Z. D. Kvon and M. R. Baklanov and A. Satta},
journal= {arXiv preprint arXiv:cond-mat/0210250},
year = {2007}
}