title: Multistep magnetization plateaus in the Shastry-Sutherland system TbB4.
abstract: We report high-field magnetization and magnetostriction measurements on the rare-earth-metal tetraboride TbB4, in which the Tb moments form a Shastry-Sutherland lattice in the tetragonal basal plane. A number of magnetization plateaus appear when the magnetic field is perpendicular to the magnetic easy plane. We propose that the magnetization plateaus arise from the combined effect of magnetic frustration and quadrupole interaction in the unique two-dimensional network.
authors.affiliation: KYOKUGEN, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan. yoshii@imr.tohoku.ac.jp
authors.forename: S
authors.initials: S
authors.lastname: Yoshii
authors.forename: T
authors.initials: T
authors.lastname: Yamamoto
authors.forename: M
authors.initials: M
authors.lastname: Hagiwara
authors.forename: S
authors.initials: S
authors.lastname: Michimura
authors.forename: A
authors.initials: A
authors.lastname: Shigekawa
authors.forename: F
authors.initials: F
authors.lastname: Iga
authors.forename: T
authors.initials: T
authors.lastname: Takabatake
authors.forename: K
authors.initials: K
authors.lastname: Kindo