Magnetoelectric Properties in Nickel Ferrite – Niobate Relaxor Bulk Composites

2012 ◽  
Vol 77 ◽  
pp. 215-219
Author(s):  
Piotr Guzdek
Keyword(s):  
Magnetic Field ◽  
Nickel Ferrite ◽  
Room Temperature ◽  
Single Phase ◽  
Magnetoelectric Effect ◽  
Multiferroic Materials ◽  
Fundamental Interest ◽  
Practical Applications ◽  
Magnetoelectric Properties ◽  
Properties Of Composites

Magnetoelectric effect in multiferroic materials is widely studied for its fundamental interest and practical applications. The magnetoelectric effect observed for single phase materials like Cr2O3, BiFeO3, Pb(Fe0.5Nb0.5)O3is usually small. A much larger effect can be obtained in composites consisting of magnetostrictive and piezoelectric phases. This paper investigates the magnetostrictive and magnetoelectric properties of nickel ferrite Ni0.3Zn0.62Cu0.08Fe2O4- relaxor Pb(Fe0.5Nb0.5)O3bulk composites. The magnetic properties of composites shows a dependence typical of such composite materials, i.e. it consists of a dominating signal from ferrimagnetic phase (ferrite) and a weak signal from paramagnetic (antiferromagnetic) phase (relaxors). Magnetoelectric effect at room temperature was investigated as a function of static magnetic field (300-7200 Oe) and frequency (10 Hz-10 kHz) of sinusoidal modulation magnetic field. The magnetoelectric effect increase slightly before reaching a maximum at HDC= 750 Oe and then decrease. The magnetoelectric coefficient increases continuously as frequency is raised, although this increase is less pronounced in the 1-10 kHz range.

scholarly journals The Magnetoelectric Effect of a Ni0.3Zn0.62Cu0.08Fe2O4 - PbFe0.5Nb0.5O3 Multilayer Composite

2014 ◽  
Vol 59 (3) ◽  
pp. 1011-1015
Author(s):  
P. Guzdek ◽  
M. Sikora ◽  
Ł. Góra ◽  
Cz. Kapusta
Keyword(s):  
Magnetic Field ◽  
Magnetoelectric Effect ◽  
Magnetic Hysteresis ◽  
Tape Casting ◽  
Casting Process ◽  
Layered Composites ◽  
Practical Applications ◽  
Magnetoelectric Composite ◽  
Sinusoidal Magnetic Field ◽  
Magnetoelectric Coefficient

Abstract The magnetoelectric effect in multiferroic materials has been widely studied for its fundamental interest and practical applications. The magnetoelectric effect observed for single phase materials like Cr2O3, BiFeO3, and Pb(Fe0.5Nb0.5)O3 is usually small. A much larger effect can be obtained in composites consisting of magnetostrictive and piezoelectric phases. This paper investigates the magnetoelectric effect of a multilayer (laminated) structure consisting of 6 nickel ferrite and 7 PFN relaxor layers. It describes the synthesis and tape casting process for Ni0.3Zn0.62Cu0.08Fe2O4 ferrite and relaxor PbFe0.5Nb0.5O3 (PFN). Magnetic hysteresis, ZFC - FC curves and dependencies of magnetization versus temperature for PFN relaxor and magnetoelectric composite were measured with a vibrating sample magnetometer (VSM) in an applied magnetic field up to 85 kOe at a temperature range of 10 – 400 K. Magnetoelectric effect at room temperature was investigated as a function of a static magnetic field (0.3 - 6.5 kOe) and the frequency of sinusoidal magnetic field (0.01 - 6.5 kHz). At lower magnetic field, the magnetoelectric coefficient increases slightly before reaching a maximum and then decreases. The magnetoelectric coefficient aME increases continuously as the frequency is raised, although this increase is less pronounced in the 1-6.5 kHz range. Maximum values of the magnetoelectric coefficient attained for the layered composites exceed about 50 mV/(Oe cm).

Designing room-temperature multiferroic materials in a single-phase solid-solution film

2016 ◽  
Vol 49 (36) ◽  
pp. 365001 ◽  
Author(s):  
H J Mao ◽  
C Song ◽  
B Cui ◽  
J J Peng ◽  
F Li ◽  
...  
Keyword(s):  
Solid Solution ◽  
Room Temperature ◽  
Single Phase ◽  
Multiferroic Materials ◽  
Solid Solution Film

GENERATING OF ELECTRICITY FROM MAGNETOELECTRIC COMPOSITE WITH USE OF CHANGES IN DIRECTION OF MAGNETIC FIELD VECTOR

2017 ◽  
Vol 186 (4) ◽  
pp. 283-293
Author(s):  
Rafał MECH
Keyword(s):  
Magnetic Field ◽  
Piezoelectric Material ◽  
Hybrid Material ◽  
Magnetoelectric Effect ◽  
Hybrid Structure ◽  
Field Vector ◽  
Magnetic Field Vector ◽  
Magnetoelectric Composite ◽  
Magnetoelectric Properties ◽  
Prepared Material

Paper shows study on the magnetoelectric composite material placed in an external magnetic field with changing magnetic field vecotr. An experimental setup for investigation of magnetoelectric properties of magnetostrictive-piezoelectric material was prepared. The hybrid structure is made of magnetostrictive composite (based on Terfenol-D) and piezoelectric material. Experimental results shown the response of prepared hybrid material to the rate of changes of direction of magnetic field vector. Investigation were mainly focused on possibility of generating of electric power from prepared material. It was found that the prepared hybrid material exhibits magnetoelectric effect in the case of work when direction of magnetic field vector was changing. This effect might be use in Energy Harvesting applications.

scholarly journals Magnetoelectric coupling and magnetoelectric properties of single-phase ABO3 type multiferroic materials

2009 ◽  
Vol 58 (5) ◽  
pp. 3491
Author(s):  
Zhong Chong-Gui ◽  
Jiang Qing ◽  
Fang Jing-Huai ◽  
Ge Cun-Wang
Keyword(s):  
Single Phase ◽  
Magnetoelectric Coupling ◽  
Multiferroic Materials ◽  
Magnetoelectric Properties

Emerging Technologies and Opportunities Based on the Magneto-Electric Effect in Multiferroic Composites

2009 ◽  
Vol 1161 ◽  
Author(s):  
Marian Vopsaroiu ◽  
John Blackburn ◽  
Markys G. Cain
Keyword(s):  
Room Temperature ◽  
Single Phase ◽  
Emerging Technologies ◽  
Academic Research ◽  
Multiferroic Materials ◽  
Composite Systems ◽  
Enhanced Properties ◽  
The Many ◽  
Electric Effect ◽  
Laminated Structures

AbstractMultiferroic materials are recognized today as one of the new emerging technologies with huge potential for both academic research and commercial developments. Multiferroic composites are in particular more attractive for studies due to their enhanced properties, especially at room temperature, in comparison to the single-phase multiferroics. In this paper, we examine some of the theoretical aspects regarding one type of multiferroic composites (laminated structures) and we discuss one of the many possible applications of these exciting structures. We highlight the main advantages composite systems have over single-phase multiferroics and the similarities that exist between them.

scholarly journals Current Progress of Research on Magnetically-induced Ferroelectrics

2014 ◽  
Vol 70 (a1) ◽  
pp. C6-C6
Author(s):  
Tsuyoshi Kimura
Keyword(s):  
Electric Fields ◽  
Room Temperature ◽  
Magnetoelectric Effect ◽  
Electric Polarization ◽  
Ferroelectric Polarization ◽  
Perovskite Manganites ◽  
Magnetoelectric Effects ◽  
Practical Applications ◽  
Complex Spin ◽  
Room Temperature Operation

Among several different types of magnetoelectric multiferroics, "magnetically-induced ferroelectrics" in which ferroelectricity is induced by complex spin orders, such as spiral orders, exhibit giant direct magnetoelectric effects, i.e., remarkable changes in electric polarization in response to a magnetic field. Not a few spin-driven ferroelectrics showing the magnetoelectric effects have been found in the past decade.[1] However, their induced ferroelectric polarization is much smaller than that in conventional ferroelectrics and mostly develops only at temperatures much lower than room temperature. Thus, the quest for spin-driven ferroelectrics with room temperature operation and/or robust ferroelectric polarization is still a major challenge in magnetoelectric multiferroics research. In this presentation, I will begin with introducing the background of research on magnetically-induced ferroelectrics, and present the following current progress. Recently, some hexaferrites have been found to show direct magnetoelectric effects at room temperature and relatively low magnetic fields.[2] Furthermore these hexferrites show inverse magnetoelectric effects, that is, induction of magnetization by applying electric fields, at room temperature. The results represented an important step toward practical applications using the magnetoelectric effect in spin-driven ferroelectrics. This presentation introduces magnetism and magnetoelectricity of several types of hexaferrites which show magnetoelectric effect at temperatures above room temperature. In addition, I will also introduce our recent work on magnetoelectric perovskite manganites with large magnetically-induced ferroelectric polarization which is comparable to that in conventional ferroelectrics. This work has been done in collaboration with T. Aoyam, K. Haruki, K. Okumura, A. Miyake, K. Shimizu, and S. Hirose.

Quantum Theory of Magnetoelectric Properties of Rare-Earth Alumoborates: Holmium Alumoborate

2014 ◽  
Vol 215 ◽  
pp. 95-99
Author(s):  
Nadezhda V. Kostyuchenko ◽  
Alexander I. Popov ◽  
Anatoly K. Zvezdin
Keyword(s):  
Magnetic Field ◽  
Experimental Data ◽  
Magnetic Properties ◽  
Magnetic Susceptibility ◽  
Rare Earth ◽  
Quantum Theory ◽  
Magnetoelectric Effect ◽  
Magnetoelectric Properties ◽  
Magnetization Processes

The magnetization processes of HoAl3(BO3)4rare-earth aluminum borates have been studied theoretically. Magnetic properties of the crystals were examined. The dependencies of the magnetic susceptibility on the magnitude and direction of magnetic field were calculated. Study of a magnetoelectric effect was performed and the dependencies of the polarization on the strength and orientation of a magnetic field and temperature were obtained. A comparison of the theoretical and experimental data was performed, their consistency has been ascertained.

scholarly journals Multiferroic hexagonal ferrites (h-RFeO3, R = Y, Dy-Lu): a brief experimental review

2014 ◽  
Vol 28 (21) ◽  
pp. 1430008 ◽  
Author(s):  
Xiaoshan Xu ◽  
Wenbin Wang
Keyword(s):  
Rare Case ◽  
Room Temperature ◽  
Magnetoelectric Effect ◽  
Film Growth ◽  
Thin Film Growth ◽  
Hexagonal Ferrites ◽  
Intrinsic Properties ◽  
Crystalline Materials ◽  
New Family ◽  
Magnetoelectric Properties

Hexagonal ferrites ( h - RFeO 3, R = Y , Dy - Lu ) have recently been identified as a new family of multiferroic complex oxides. The coexisting spontaneous electric and magnetic polarizations make h - RFeO 3 rare-case ferroelectric ferromagnets at low temperature. Plus the room-temperature multiferroicity and the predicted magnetoelectric effect, h - RFeO 3 are promising materials for multiferroic applications. Here we review the structural, ferroelectric, magnetic and magnetoelectric properties of h - RFeO 3. The thin film growth is also discussed because it is critical in making high quality single crystalline materials for studying intrinsic properties.

scholarly journals Структура, диэлектрические и магнитодиэлектрические свойства керамики мультиферроика 0.5BiFeO-=SUB=-3-=/SUB=--0.5PbFe-=SUB=-0.5-=/SUB=-Nb-=SUB=-0.5-=/SUB=-O-=SUB=-3-=/SUB=-

2020 ◽  
Vol 62 (10) ◽  
pp. 1677
Author(s):  
А.В. Павленко ◽  
К.М. Жидель ◽  
Л.А. Шилкина
Keyword(s):  
Magnetic Field ◽  
Solid Solution ◽  
Dielectric Loss ◽  
Constant Magnetic Field ◽  
Room Temperature ◽  
Magnetoelectric Effect ◽  
Dielectric Characteristics ◽  
Temperature Range ◽  
Cubic Structure

The structure, dielectric characteristics, and magnetoelectric effect of multiferroic 0.5BiFeO3–0.5PbFe0.5Nb0.5O3 ceramics were studied. Ceramics are found to be pure. At room temperature, ceramics has a cubic structure close to а = 3.999(5) Å, which remains in the temperature range of 20–600 оС. It was shown that 0.5BiFeO3–0.5PbFe0.5Nb0.5O3 solid solution at Т < 200 оС combines both ferroelectric and antiferromagnetic properties. At room temperature in a constant magnetic field of 0.86 T, magnetodielectric coefficient and dielectric loss in the material are –0.4 % and –0.5 %, respectively.

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