Weak ferromagnetism in hexagonal orthoferrites RFeO3 (R = Lu, Er-Tb)
Weak ferromagnetism in hexagonal orthoferrites RFeO3 (R = Lu, Er-Tb)
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DOI：
10.1063/1.3643043
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发表时间：
2011-09-19
影响因子：
4
通讯作者：
Kaul, A. R.
中科院分区：
文献类型：
--
作者：
Akbashev, A. R.;Semisalova, A. S.;Kaul, A. R.
采用金属有机化学气相沉积法在（111）ZrO_2（Y_2 O_3）衬底上外延生长了稀土类六方晶系正铁氧体RFeO_3（R = Lu，Er-Tb）。测量和分析了所有样品的磁化强度与温度和磁场的关系，发现在T = 120- 140 K以下样品具有弱铁磁行为。电子结构的差异沿着与六方锰氧化物RMnO 3和六方正铁氧体RFeO 3的晶体结构中的明显相似性被带到重点，以解释的结果。六方晶系正铁氧体被认为是一类很有前途的多铁性材料。(C)2011年美国物理学会。[doi：10.1063/1.3643043]
Hexagonal orthoferrites of rare earths RFeO3 (R = Lu, Er-Tb) were grown epitaxially on (111)ZrO2(Y2O3) substrates using metal-organic chemical vapour deposition. Temperature and field dependences of magnetization were measured and analyzed for all samples and revealed weak ferromagnetic behavior below T = 120-140K. The difference in electronic structure along with a distinct similarity in the crystal structure of hexagonal manganites RMnO3 and hexagonal orthoferrites RFeO3 are brought into focus in order to explain the results. Hexagonal orthoferrites are regarded as a promising family of multiferroics. (C) 2011 American Institute of Physics. [doi : 10.1063/1.3643043]