@article{oai:nifs-repository.repo.nii.ac.jp:00000133,
 author = {Ida,  K. and Shimozuma,  T. and Funaba,  H. and Narihara,  K. and Kubo,  S. and Murakami,  S. and Wakasa,  A. and Yokoyama,  M. and Takeiri,  Y. and Watanabe,  K.Y. and Tanaka,  K. and Yoshinuma,  M. and Liang,  Y. and Ohyabu,  N. and LHD, experimental group},
 issue = {No.8},
 journal = {Physical Review Letters},
 month = {Aug},
 note = {Associated with the transition from ion root to electron root, an electron internal transport barrier (ITB) appears in the large helical device, when the heating power of electron cyclotron resonance heating exceeds the threshold power. The incremental thermal diffusivity of electron heat transport χ_e^inc in the ITB plasma is much lower than that in the plasma with the heating power below the threshold, and the thermal diffusivity χ_e decreases with increasing of heating power [dχ_e/d(P/n_e)<0] in helical ITB plasmas.},
 title = {Characteristics of Electron Heat Transport of Plasma with an Electron Internal-Transport Barrier in the Large Helical Device},
 volume = {Vol.91},
 year = {2003}
}