@article{oai:repo.qst.go.jp:00046667,
 author = {Toshihiro, Taen and Yasuyuki, Nakajima and Tsuyoshi, Tamegai and Hisashi, Kitamura and 田縁 俊光 and 仲島 康行 and 為ケ井 強 and 北村 尚},
 issue = {9},
 journal = {Physical Review B},
 month = {Sep},
 note = {The effect of proton irradiation in Ba(Fe0.93Co0.07)2As2 single crystals is reported. We analyze temperature dependence of the current density and normalized flux relaxation rate in the framework of the collective-creep model. The glassy exponent and barrier height for flux creep are directly determined by Maley's method. Our model functions for barrier height and critical current density in the absence of flux creep are explained by the superposition of δTc and δl pinnings. We also approach true critical current density by means of the generalized inversion scheme, and the obtained result is in reasonable agreement with our model function. The proton-irradiation effect on temperature dependence of the current density and normalized relaxation rate can be summarized as doubling of the barrier height at the beginning of flux creep.},
 pages = {094527-1--094527-5},
 title = {Enhancement of critical current density and vortex activation energy in proton-irradiated Co-doped BaFe2As2},
 volume = {86},
 year = {2012}
}