Transport properties of The layered transition metal oxypnictide Sr2ScMPO3 with MP layers (M =Mn, Ni and Co0.5Fe0.5)

S. Okada, Y. Kamihara, N. Ohkubo, S. Ban, M. Matoba

研究成果: Conference article査読

3 被引用数 (Scopus)


Polycrystalline samples of novel oxypnictides, Sr2ScMPO3, with MP layer (M Mn, Ni and Co0.5Fe0.5) were synthesized, and their resistivities and Seebeck coefficients were measured. Sr2ScMPO3 crystallizes in a stacked, layered structure comprised of a ThCr2Si2- type MP layer alternating with a K2NiF4-type Sr2ScO3 layer. Sr2ScMnPO3 is an insulator at room temperature. The resistivities (ρ) of Sr2ScNiPO3 and Sr2ScCo0.5Fe0.5PO3 decrease with decreasing temperature like a metal. The Seebeck coefficients (S) of these materials are negative at room temperature. For Sr2ScNiPO3, S initially decreases slightly with decreasing temperature, and increases with decreasing temperature below 50 K. However, for Sr2ScCo0.5Fe0.5PO3, S increases with decreasing temperature, and attains to a positive value below 270 K.

ジャーナルJournal of Physics: Conference Series
出版ステータスPublished - 2014
イベント27th International Conference on Low Temperature Physics, LT 2014 - Buenos Aires, Argentina
継続期間: 2014 8 62014 8 13

ASJC Scopus subject areas

  • 物理学および天文学(全般)


「Transport properties of The layered transition metal oxypnictide Sr<sub>2</sub>ScMPO<sub>3</sub> with MP layers (M =Mn, Ni and Co<sub>0.5</sub>Fe<sub>0.5</sub>)」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。