【摘要】：多鐵性材料的自旋、電荷、軌道、晶格等多重有序存在著復(fù)雜的相互作用,且對(duì)磁場(chǎng)、電場(chǎng)、光場(chǎng)、應(yīng)變和溫度等多種外界環(huán)境敏感,從而表現(xiàn)出一些新奇的物理現(xiàn)象,使其在存儲(chǔ)器、傳感器、微波等領(lǐng)域中有重要的應(yīng)用價(jià)值。隨著對(duì)單相多鐵材料研究的深入,人們已從簡(jiǎn)單鈣鈦礦結(jié)構(gòu)的多鐵性研究轉(zhuǎn)向復(fù)雜的層狀類鈣鈦礦體系,其豐富而復(fù)雜的結(jié)構(gòu)給人們提供了更廣泛的設(shè)計(jì)和調(diào)控空間。介紹并分析了如Double-Perovskite(DP)、Ruddlesden-Popper(RP)、Aurivillius(AU)以及A_nB_nO_(3n+2)系列等層狀類鈣鈦礦多鐵性特征的研究進(jìn)展。人們已發(fā)現(xiàn)Bi_2FeCrO_6等DP體系、(1 x)(Ca_ySr_(1 y))_(1.15)Tb_(1.85)Fe_2O_7 xCa_3Ti_2O_7等RP體系、Bi_4NdTi_3Fe_(1 x)Co_xO_(15_ Bi_3NdTi_2Fe_(1 x)Co_xO_(12 δ)等AU體系以及La_6(Ti_(0.67)Fe_(0.33))_6O_(20)層狀材料等,均具有室溫或近室溫多鐵性。最后提出了當(dāng)前面臨的問題和對(duì)未來的展望。
[Abstract]:The spins, charges, orbitals, lattices and so on of polyferromagnetic materials have complex interactions, and they are sensitive to the magnetic field, electric field, light field, strain and temperature, showing some novel physical phenomena, such as the magnetic field, the electric field, the light field, the strain and the temperature, and so on. It has important application value in memory, sensor, microwave and other fields. With the further study of single-phase multi-iron materials, people have changed from the study of simple perovskite structure to the complex layered perovskite-like system. The rich and complex structure provides people with more extensive design and control space. The research progress of layered perovskite-like perovskites such as Double-Perovskite (DP) Ruddlesden-Popper (RP) Aurivillius (AU) and A _ S _ nBnO _ (3n _ 2) series are introduced and analyzed. 浜轟滑宸插彂鐜癇i_2FeCrO_6絳塂P浣撶郴,(1 x)(Ca_ySr_(1 y))_(1.15)Tb_(1.85)Fe_2O_7 xCa_3Ti_2O_7絳塕P浣撶郴,Bi_4NdTi_3Fe_(1 x)Co_xO_(15_ Bi_3NdTi_2Fe_(1 x)Co_xO_(12 未)絳堿U浣撶郴浠ュ強(qiáng)La_6(Ti_(0.67)Fe_(0.33))_6O_(20)灞傜姸鏉愭枡絳，

本文編號(hào)：2210736