@misc{oai:tsukuba.repo.nii.ac.jp:00016921,
 author = {Ryu, Shinsei and 初貝, 安弘 and HATSUGAI, Yasuhiro},
 month = {Apr},
 note = {Two-dimensional graphite sheets with a certain type of edges are known to support boundary states localized near the edges. Forming a flat band with a sharp peak in the density of states at the Fermi energy, they can trigger a magnetic instability or a distortion of the lattice in the presence of electron–electron or electron–phonon interactions. We shall discuss a relationship between chiral symmetry, which is the origin of the zero-energy edge states, and several types of induced orders such as spin density waves or lattice distortions. We also investigate electron correlation effects on the edge states for a wrapped quasi one-dimensional geometry, i.e., carbon nanotube, by means of the renormalization group and the open boundary bosonization.},
 title = {Zero-energy edge states and chiral symmetry breaking at edges of graphite sheets},
 year = {2004},
 yomi = {ハツガイ, ヤスヒロ}
}