Magnetic and dielectric properties of a lanthanum-doped yttrium copper titanate ceramic

2017 ◽  
Vol 41 (14) ◽  
pp. 6359-6370 ◽  
Author(s):  
S. Sharma ◽  
M. M. Singh ◽  
K. D. Mandal
Keyword(s):  
Magnetic Properties ◽  
Dielectric Properties ◽  
Magnetic And Dielectric Properties ◽  
Titanate Ceramic

In this study, the microstructure and dielectric and magnetic properties of a lanthanum-doped yttrium copper titanate ceramic (YLCTO) are reported and have been discussed.

Electrical and Magnetic Studies of (La0.5-xPrxBa0.5)(Mn0.5Ti0.5)O3 as Multiferroic Material

2012 ◽  
Vol 545 ◽  
pp. 269-274
Author(s):  
Nor Hayati Alias ◽  
Abdul Halim Shaari ◽  
Wan Mohamad Daud Wan Yusoff ◽  
Che Seman Mahmood
Keyword(s):  
Magnetic Properties ◽  
Dielectric Properties ◽  
Solid State ◽  
Room Temperature ◽  
Sintering Temperature ◽  
Multiferroic Material ◽  
Magnetic Studies ◽  
State Technique ◽  
Magnetic And Dielectric Properties ◽  
Synthesized Materials

A new perovskite based titano-manganite (La0.5-xPrxBa0.5)(Mn0.5Ti0.5)O3 at x concentration 0, 0.01, 0.03, 0.05, 0.07 and 0.09 has been successfully prepared by ceramic solid-state technique at sintering temperature of 1300 °C. Dielectric electrical properties of the synthesized materials at frequency ranging from 5 Hz to 1 MHz and magnetic properties have been studied at room temperature. Analyses have been carried out to determine the structural, magnetic and dielectric properties of the synthesized material as a candidate of multiferroic material.

Synthesis and Characterisation of B-Site Doped Cu2Ta4O12

2002 ◽  
Vol 755 ◽  
Author(s):  
Bernd Renner ◽  
Stefan Ebbinghaus ◽  
Armin Reller ◽  
David Schrupp ◽  
Hans-Albrecht Krug von Nidda ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Dielectric Properties ◽  
Single Crystals ◽  
Rietveld Refinement ◽  
Copper Content ◽  
Tantalum Oxide ◽  
Powder Samples ◽  
Magnetic And Dielectric Properties ◽  
And Tungsten

ABSTRACTWe investigated synthesis, structure, composition as well as electric and magnetic properties of copper tantalum oxide single crystals and powder samples. It was possible to flux-grow single crystals of undoped Cu2Ta4O12. To modify the copper content in this structure, tetravalent and hexavalent ions like titanium and tungsten have been incorporated. Rietveld refinement data as well as magnetic and dielectric properties are presented.

Magnetic and Dielectric Properties of BST-YIG Composites

2008 ◽  
Vol 368-372 ◽  
pp. 585-587 ◽  
Author(s):  
Jun Chu Li ◽  
Xiang Li ◽  
Gang Yang ◽  
Zhen Xing Yue
Keyword(s):  
Magnetic Properties ◽  
Dielectric Properties ◽  
High Frequency ◽  
Chemical Interaction ◽  
Solid State Reaction Method ◽  
Composite Ceramics ◽  
Magnetic And Dielectric Properties ◽  
Two Phases ◽  
Significant Chemical ◽  
Frequency Dependences

xBST-(1-x)YIG composite ceramics with x=0~1 were prepared by solid-state reaction method. The variations for phase compositions were determined by XRD, and the magnetic and dielectric properties of the composites were studied in the frequency range of 100Hz~1GHz. The results showed that the composites (x=0.1~0.9) are consisted of BST phase and YIG phase and no significant chemical interaction occurs between these two phases. The composite materials exhibit excellent frequency dependences of dielectric and magnetic properties. The resonance frequency and high frequency characteristics of YIG are improved by additions of BST, and when x=0.3, xBST-(1-x)YIG has the best dielectric and magnetic properties.

Magnetic and dielectric properties of 3Y-TZP/strontium doped barium ferrite composite

2015 ◽  
Vol 08 (04) ◽  
pp. 1550040 ◽  
Author(s):  
Chao Zhang ◽  
Shan-Shan Wang ◽  
Rui-Song Guo ◽  
Guang-Lan Cai ◽  
Wei-Na Guo ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
Magnetic Properties ◽  
Dielectric Properties ◽  
Solid State ◽  
Dielectric Loss ◽  
Barium Ferrite ◽  
Lattice Distortion ◽  
Solid State Reaction Method ◽  
Reaction Method ◽  
Magnetic And Dielectric Properties

Magnetic and dielectric properties of 3Y-TZP/20 wt.% Ba 1-x Sr x Fe 12 O 19 (x = 0, 0.25, 0.5, 0.75) composites prepared by solid state reaction method are investigated. The magnetic properties are improved in the composites with the strontium doped barium ferrite. When x = 0.25, the saturation magnetization of the ferrite reaches the maximum. This is due to the migration of Fe 3+ induced by the Sr 2+ doping. The dielectric properties are also improved in the composite with the strontium doped barium ferrite. When x = 0.5, the dielectric constant and dielectric loss possess the maximum. This is caused by the lattice distortion resulting from the Sr 2+ doping. The dielectric properties are analyzed by the universal relaxation law.

Influence of Ca-Doping on Structural, Magnetic and Dielectric Properties of Ba3Co2-xCaxFe24O41 Hexaferrite Powders

2015 ◽  
Vol 241 ◽  
pp. 226-236 ◽  
Author(s):  
Neha Solanki ◽  
Rajshree B. Jotania
Keyword(s):  
Dielectric Constant ◽  
Dielectric Properties ◽  
Sol Gel ◽  
Calcium Content ◽  
Combustion Method ◽  
Dielectric Behavior ◽  
Dielectric Parameters ◽  
Ca Doping ◽  
Auto Combustion ◽  
Magnetic And Dielectric Properties

Influence of Ca substitution on structural, magnetic and dielectric properties of Ba3Co2-xCaxFe24O41(where x = 0.0, 0.2, 0.4, 0.6, 0.8 and 1.0), prepared by Sol-Gel auto-combustion method, has been investigated in present studies. The obtained powder was sintered at 950 oC for 4 hrs. in the static air atmosphere. Structural analysis of Ca-doped Ba3Co2-xCaxFe24O41powders revealed pure Z-type hexaferrite phase at low temperature. The frequency dependent dielectric constant (Єʹ) and magnetic properties such as remanent magnetization (Mr), saturation magnetization (Ms) and coercivity (Hc) were studied. It is observed that coercivity increased gradually with increase in calcium content. The real dielectric constant (Єʹ) and dielectric loss tangent (tan δ) were studied in the frequency range of 20Hz to 2MHz. The dielectric parameters for all samples show normal dielectric behavior as observed in hexaferrites. Contents of Paper

Magnetic and Dielectric Properties of a Metal/ Cr2O3/Cr2O3-x/Cr2O3/Semiconductor Capacitor Using Magneto-Electric Materials

2007 ◽  
Vol 350 ◽  
pp. 221-224
Author(s):  
Takeshi Yokota ◽  
Takaaki Kuribayashi ◽  
Takeshi Shundo ◽  
Keita Hattori ◽  
Yasutoshi Sakakibara ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Magnetic Moment ◽  
Floating Gate ◽  
Single System ◽  
Insulating Layer ◽  
Ferromagnetic Properties ◽  
Capacitance Voltage ◽  
Magnetic And Dielectric Properties ◽  
Mis Capacitor ◽  
Electric Materials

We investigated the magnetic and dielectric properties of a metal (Pt)/insulator (Cr2O3)/semiconductor (Si) (MIS) capacitor composed of magneto-electric (ME) materials. The capacitor has anti-ferromagnetic properties and a very small electrically induced magnetic moment. It also shows capacitance-voltage (C-V) properties typical of a Si-MIS capacitor without any hysteresis. By inserting a thin Cr2O3-x layer, the C-V curve has a hysteresis window with a clockwise trace, which indicates that electrons have been injected into the Cr2O3-x layer. These results indicate that this MIS capacitor contains a floating gate and an ME insulating layer in a single system.

Role of Zn substitution on structural, magnetic and dielectric properties of Cu–Cr spinel ferrites

2016 ◽  
Vol 90 (8) ◽  
pp. 869-880 ◽  
Author(s):  
S. Anjum ◽  
H. Nazli ◽  
R. Khurram ◽  
Talat Zeeshan ◽  
S. Riaz ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Spinel Ferrites ◽  
Zn Substitution ◽  
Magnetic And Dielectric Properties ◽  
Role Of Zn
Sign in / Sign up

Export Citation Format

Share Document