@article{oai:muroran-it.repo.nii.ac.jp:00006503, author = {SUZUYAMA, Takeshi and 阿波加, 淳司 and AWAKA, Junji and YAMAMOTO, Hiroki and Ebisu, Shuji and 戎, 修二 and ITO, Masakazu and SUZUKI, Takashi and NAKAMA, Takao and YAGASAKI, Katsuma and Nagata, Shoichi and 永田, 正一}, issue = {1}, journal = {Journal of solid state chemistry}, month = {Jan}, note = {application/pdf, Ferromagnetic-phase transition in spinel-type CuCr2Te4 has been clearly observed. CuCr2Te4 is a telluride-spinel with the lattice constant a=11.134 a*, which has been synthesized successfully. The heat capacity exhibits a sharp peak due to the ferromagnetic-phase transition with the Curie temperature TC=326 K. This value of TC corresponds exactly to that of the negative peak of dM/dT in low field of 1.0Oe. The magnetic susceptibility shows the Curie-Weiss behavior between 380 and 650K with the effective magnetic moment μeff=4.14 μB/Cr-ion and the Weiss constant &thetas;=+357 K. The low temperature magnetization indicates the spin-wave excitations, where the existence of first term of Bloch T3/2 law and the next T5/2 term are verified experimentally. This spin-wave excitation is detected up to approximately 250K which is a fairly high temperature.}, pages = {140--144}, title = {Ferromagnetic-phase transition in the spinel-type CuCr2Te4}, volume = {179}, year = {2006}, yomi = {アワカ, ジュンジ and エビス, シュウジ and ナガタ, ショウイチ} }