The ferromagnetic phase was found in single crystals of the new diluted magnetic semiconductor of p-Bi2 - xFexTe3 (0 ≤ x ≤ 0.08) at a temperature Tc which increases with Fe content x up to Tc = 12 K for x = 0.08. The easy-axis for magnetization is parallel to the C3 crystallographic axis. In n-type samples Bi2 - xFexSe3 ferromagnetic transition was not found down to 2 K. Iron atoms exhibit donor properties. With an increasing the content x of Fe atoms the value of the Seebeck coefficient α increases.
|ジャーナル||Physics Letters, Section A: General, Atomic and Solid State Physics|
|出版ステータス||Published - 2001 7 2|
ASJC Scopus subject areas
- Physics and Astronomy(all)