Formation of Ferromagnetic/Ferroelectric Superlattices by a Laser MBE and Their Electric & Magnetic Properties

1997 ◽  
Vol 494 ◽  
Author(s):  
Hitoshi Tabata ◽  
Kenji Ueda ◽  
Tomoji Kawai
Keyword(s):  
Crystal Structure ◽  
Magnetic Properties ◽  
Spin Structure ◽  
Piezoelectric Effect ◽  
Ferromagnetic Material ◽  
Ferromagnetic Order ◽  
Laser Mbe ◽  
Perovskite Type ◽  
Laser Ablation Technique ◽  
Similar Crystal Structure

ABSTRACTWe have constructed artificial superlattices with a combination of magnetic/magnetic and ferroelectric/ferromagnetic materials using a laser ablation technique. An ideal hetero-epitaxy can be obtained due to the similar crystal structure of the perovskite type di/ferroelectric BaTiO3, Pb(Zr,Ti)O3 (so-called PZT), SrTiO3 and ferro/antiferromagnetic LaFeO3, LaCrO3, (La,Sr)MnO3. First of all, we have controlled ferromagnetic order on LaFeO3/LaCrO3 superlattices formed on SrTiO3(l11) substrate. Such a spin structure(ferromagnetic order) can't be got in bulk condition. In the heterostructured ferromagnetic /ferroelectric devices, (La,Sr)MnO3/PZT there are remarkable and interesting phenomena. The electric properties of the ferromagnetic material can be controlled by the piezoelectric effect via distortion of the crystal structure.

Correlation between Ionic Radius of Substituting Element and Magnetic Properties of Bi1-xAxFeO3-x/2 (A= Ca, Sr, Pb, Ba) Multiferroics

2009 ◽  
Vol 152-153 ◽  
pp. 131-134 ◽  
Author(s):  
V.A. Khomchenko ◽  
Michael Kopcewicz ◽  
Armandina M. Lima Lopes ◽  
Yuri G. Pogorelov ◽  
J.P. Araujo ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Magnetic Properties ◽  
Spin Structure ◽  
Ionic Radius ◽  
Oxygen Vacancies ◽  
Magnetic State ◽  
Weak Ferromagnetism ◽  
Host Lattice ◽  
A Site ◽  
Spiral Spin

Investigation of crystal structure and magnetic properties of the diamagnetically- substituted Bi1-xAxFeO3-x/2 (A= Ca, Sr, Pb, Ba; x= 0.2, 0.3) polycrystalline samples has been carried out. It has been shown that the heterovalent A2+ substitution result in the formation of oxygen vacancies in the host lattice. The solid solutions have been found to possess a rhombohedrally distorted perovskite structure described by the space group R3c. Magnetization measurements have shown that the magnetic state of these compounds is determined by the ionic radius of the substituting elements. A-site substitution with the biggest ionic radius ions has been found to suppress the spiral spin structure of BiFeO3 giving rise to the appearance of weak ferromagnetism.

A triple-bridged azido-Cu(ii) chain compound fine-tuned by mixed carboxylate/ethanol linkers displays slow-relaxation and ferromagnetic order: synthesis, crystal structure, magnetic properties and DFT calculations

2014 ◽  
Vol 43 (41) ◽  
pp. 15359-15366 ◽  
Author(s):  
Xiangyu Liu ◽  
Sanping Chen ◽  
Thais Grancha ◽  
Emilio Pardo ◽  
Hongshan Ke ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Magnetic Properties ◽  
Dft Calculations ◽  
Slow Relaxation ◽  
Ferromagnetic Order ◽  
Chain Compound

A triple-bridged azido-Cu(ii) compound has been synthesized and magnetically characterized.

Laser MBE-grown yttrium iron garnet films on GaN: characterization of the crystal structure and magnetic properties

2016 ◽  
Vol 3 (7) ◽  
pp. 076405
Author(s):  
A K Kaveev ◽  
V E Bursian ◽  
S V Gastev ◽  
B B Krichevtsov ◽  
S M Suturin ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Magnetic Properties ◽  
Yttrium Iron Garnet ◽  
Yttrium Iron ◽  
Garnet Films ◽  
Laser Mbe ◽  
Iron Garnet

Laser MBE-grown CoFeB epitaxial layers on MgO: Surface morphology, crystal structure, and magnetic properties

2018 ◽  
Vol 2 (1) ◽  
Author(s):  
Andrey K. Kaveev ◽  
Viktor E. Bursian ◽  
Boris B. Krichevtsov ◽  
Konstantin V. Mashkov ◽  
Sergey M. Suturin ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Magnetic Properties ◽  
Surface Morphology ◽  
Epitaxial Layers ◽  
Laser Mbe ◽  
Mgo Surface
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