Magnetic and Electric Properties of , () Layered Perovskites
作者： A. I. Ali , A. Hassen
DOI: 10.1155/2013/714143
关键词:
摘要: The electric and magnetic properties of layered perovskites have been investigated systematically over the doping range . It was found that both Sr1.5Y0.5CoO4 Sr1.4Y0.6CoO4 undergo ferromagnetic (FM) transition around 145 K 120 K, respectively. On other hand, Sr1.3Y0.7CoO4 Sr1.2Y0.8CoO4 compounds showed paramagnetic behavior a wide temperatures. In addition, spin-glass () observed at 10 K for Sr1.3Y0.7CoO4. All samples are semiconducting-like within temperature 10–300 K. dependence electrical resistivity, , described by two-dimensional variable hopping (2D-VRH) model 50 K < ≤ 300 K. Comparison with discussed in this work.
hindawi.com
core.ac.uk参考文章(19)
Y. Shimada, S. Miyasaka, R. Kumai, Y. Tokura, Semiconducting ferromagnetic states in La 1 − x Sr 1 + x Co O 4 Physical Review B. ,vol. 73, pp. 134424- ,(2006) , 10.1103/PHYSREVB.73.134424
Shengli Huang, Keqing Ruan, Zhangming Lv, Huiyan Wu, Zongqiang Pang, Liezhao Cao, Xiaoguang Li, Evidence for spin-glass states and Griffiths singularities in Nd0.75Sr1.25CoO4 Journal of Physics: Condensed Matter. ,vol. 18, pp. 7135- 7144 ,(2006) , 10.1088/0953-8984/18/31/008
N. Sakiyama, I. A. Zaliznyak, S.-H. Lee, Y. Mitsui, H. Yoshizawa, Doping-dependent charge and spin superstructures in layered cobalt perovskites Physical Review B. ,vol. 78, pp. 180406- ,(2008) , 10.1103/PHYSREVB.78.180406
XL Wang, H Sakurai, E Takayama-Muromachi, None, Synthesis, structures, and magnetic properties of novel Roddlesden–Popper homologous series Srn+1ConO3n+1 (n=1,2,3,4, and ∞) Journal of Applied Physics. ,vol. 97, ,(2005) , 10.1063/1.1855534
XL Wang, E Takayama-Muromachi, None, Magnetic and transport properties of the layered perovskite systemSr2−yYyCoO4(0⩽y⩽1) Physical Review B. ,vol. 72, pp. 064401- ,(2005) , 10.1103/PHYSREVB.72.064401
VG Bhide, DS Rajoria, CNR Rao, G Rama Rao, VG Jadhao, None, Itinerant-electron ferromagnetism in La 1−x Sr x CoO 3 : a Mössbauer study Physical Review B. ,vol. 12, pp. 2832- 2843 ,(1975) , 10.1103/PHYSREVB.12.2832
Y. Moritomo, Y. Tomioka, A. Asamitsu, Y. Tokura, Y. Matsui, Magnetic and electronic properties in hole-doped manganese oxides with layered structures: La 1 − x Sr 1 + x MnO 4 Physical Review B. ,vol. 51, pp. 3297- 3300 ,(1995) , 10.1103/PHYSREVB.51.3297
R van Doorn, Structural aspects of the ionic conductivity of La1âxSrxCoO3âδ Solid State Ionics. ,vol. 128, pp. 65- 78 ,(2000) , 10.1016/S0167-2738(99)00282-9
G.H. Jonker, J.H. Van Santen, Magnetic compounds wtth perovskite structure III. ferromagnetic compounds of cobalt Physica D: Nonlinear Phenomena. ,vol. 19, pp. 120- 130 ,(1953) , 10.1016/S0031-8914(53)80011-X
M.A. Señarı́s-Rodrı́guez, J.B. Goodenough, Magnetic and Transport Properties of the System La1-xSrxCoO3-δ (0 < x ≤ 0.50) Journal of Solid State Chemistry. ,vol. 118, pp. 323- 336 ,(1995) , 10.1006/JSSC.1995.1351