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|Title: ||Superconductivity in BaTi2Sb2O with a d(1) Square Lattice|
|Authors: ||Yajima, T|
|Issue Date: ||1-Oct-2012|
|Publisher: ||PHYSICAL SOCIETY OF JAPAN|
|Citation: ||Yajima, T., Nakano, K., Takeiri, F., Ono, T., Hosokoshi, Y., Matsushita, Y., Hester, J., Kobayashi, Y., & Kageyama, H. (2012). Superconductivity in BaTi2Sb2O with a d(1) Square Lattice. Journal of the Physical Society of Japan, 81(10), Article Number 103706.|
|Abstract: ||We prepared a new two-dimensional oxyantimonide, BaTi(2)Sb(2)O, which shows a superconducting transition at 1.2 K, representing the first superconductivity in a system with Ti(3+) (d(1)) in a square lattice. The TiO(2)Sb(4) mixed anionic coordination stabilizes a unique half-filled Ti d(xy) orbital configuration in Ti(2)O plane, which is analogous to Cu(2+) (d(9)) in the high-T(c) superconductors. A charge density wave (CDW)- or spin density wave (SDW)-like anomaly appears at 50 K, which is significantly reduced compared with 200 K for the isostructural and non-superconducting BaTi(2)As(2)O. © 2012, Physical Society of Japan|
|Appears in Collections:||Journal Articles|
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