@article{oai:ir.kagoshima-u.ac.jp:00003137, author = {KOYAMA, Keiichi and 小山, 佳一 and SHIMADA, Daisuke and ADACHI, Yoshiya and 安達, 義也 and ORIHASHI, Hiroki and 折橋, 広樹 and MITSUNAGA, Daisuke and 満永, 大輔 and HIROI, Masahiko and 廣井, 政彦 and MITSUI, Yoshifuru and 三井, 好古 and KIMURA, Shojiro and 木村, 尚次郎 and MATSUBAYASHI, Kazuyuki and 松林, 和幸 and UWATOKO, Yoshiya and 上床, 美也}, journal = {鹿児島大学理学部紀要, Reports of the Faculty of Science, Kagoshima University}, month = {Dec}, note = {High pressures and high magnetic field effects on magnetic and electrical properties of polycrystalline Mn_{2}Sb_{0.92}Ge_{0.08}, Mn_{2}Sb_{0.92}Sn_{0.08} and Mn_{2}Sb_{0.85}Sn_{0.15} were investigated. These compounds showed a first-order magnetic transition between the ferrimagnetic (FRI) and antiferromagnetic (AFM) phases for 150?250 K temperature range in a zero magnetic field. The pressure dependence of the AFM/FRI transition temperature was estimated to be ?5.1×10^?2 GPa^?1 for Mn_{2}Sb_{0.92}Ge_{0.08}. The electrical resistivity changed abruptly by 50% for Mn_{2}Sb_{0.92}Sn_{0.08} and by 71% for Mn2Sb0.85Sn0.15 at the transition temperature. We confirmed the negative magnetoresistance over 60% for the Sn-substituted compounds.}, pages = {15--21}, title = {Magnetic and electrical properties of Mn_{2}Sb_{1?x}Z_{x}(Z = Ge, Sn) under high pressures and high magnetic fields}, volume = {48}, year = {2015} }