@book{CTT100638597,
  author = {S. Okubo and K.  Hazuki and T. Sakurai and H. Ohta and H. Yoshida and M. Azuma and M. Takano},
  title = {Millimeter and Submillimeter wave ESR Measurement of Spin Ladder System Sr(Cu1-xZnx)2O3},
  publisher = {Elsevier Science B.V},
  year = 2002,
}

@article{CTT100920562,
  author = {S. Okubo and K. Segawa and K. Naka and T. Suzuki and S. Hara and T. Sakurai and H. Ohta and M. Matsumoto and N. Kurita and H. Tanaka},
  title = {High Frequency ESR Measurements of S=1 Spin Gap System CsFeCl3},
  journal = {JPS Conference Proceedings},
  year = 2023,
}

@article{CTT100714808,
  author = {T. Sakurai and K.  Fujimoto and R.  Matsui and K.  Kawasaki and S. Okubo and H. Ohta and K. Matsubayashi and Y. Uwatoko and H. Tanaka},
  title = {Development of multipfrequency ESR system for high-pressure measurements up to 2.5 GPa},
  journal = {J. Magn. Reson.},
  year = 2015,
}

@article{CTT100644973,
  author = {S. Okubo and Tomonari Ueda and H. Ohta and Weimin Zhang and T. Sakurai and Nozomi Onishi and Masaki Azuma and Yuichi Shimakawa and Hiroki Nakano and T. Sakai},
  title = {Dzyaloshinsky-Moriya interaction and field-induced magnetic order in an antiferromagnetic honeycomb lattice compound Bi3Mn4O12(NO3) studied by high-field electron spin resonance},
  journal = {PHYSICAL REVIEW B},
  year = 2012,
}

@article{CTT100714409,
  author = {Sonia Sharmin and I. Umegaki and H. Tanaka and T. Ono and G. Tanaka and H. Nojiri and M. Fujisawa and N. Matsumi and M. Tomoo and S. Okubo and H. Ohta and T. Sakurai},
  title = {Antiferromagnetic resonance modes for the S =1/2 kagome antiferromagnet Cs2Cu3SnF12},
  journal = {J. Phys: Conf. Ser.},
  year = 2011,
}

@article{CTT100714401,
  author = {T. Sakurai and T. Horie and M. Tomoo and K. Kondo and N. Matsumi and S. Okubo and H. Ohta and Y. Uwatoko and K. Kudo and Y. Koike and H. Tanaka},
  title = {Development of high-pressure, high-field and multi-frequency ESR apparatus and its application to quantum spin system},
  journal = {J. Phys: Conf. Ser.},
  year = 2010,
}

@article{CTT100631825,
  author = {H. Ohta and S. Okubo and T. Sakurai and T. Goto and K. Kirita and K. Ueda and Y. Uwatoko and T. Saito and M. Azuma and M. Takano and J. Akimitsu},
  title = {High-Frequency ESR Measurements Using Pulsed Magnetic Fields in Kobe},
  journal = {Physica B},
  year = 2001,
}