@article{oai:nifs-repository.repo.nii.ac.jp:00000643,
 author = {Ida,  K. and Sakamoto,  Y. and Takenaga,  H. and Oyama,  N. and Itoh,  K. and Yoshinuma,  M. and Inagaki,  S. and Kobuchi,  T. and Isayama,  A. and Suzuki,  T. and Fujita,  T. and Matsunaga,  G. and Koide,  Y. and Yoshida,  M. and Ide,  S. and Kamada,  Y. and JT-60, team},
 journal = {Physical Review Letters},
 month = {Jul},
 note = {A spontaneous transition phenomena between two states of a plasma with an internal transport barrier (ITB) is observed in the steady-state phase of the magnetic shear in the negative magnetic shear plasma in the JT-60U tokamak. These two ITB states are characterized by different profiles of the second radial derivative of the ion temperature inside the ITB region (one has a weak concave shape and the other has a strong convex shape) and by different degrees of sharpness of the interfaces between the L mode and the ITB region, which is determined by the turbulence penetration into the ITB region.},
 title = {Transition between Internal Transport Barriers with Different Temperature-Profile Curvatures in JT-60U Tokamak Plasmas},
 volume = {Vol.101},
 year = {2008}
}