scholarly journals The Growth, Structure and Magnetic and Dielectric Properties of Ba6Fe0.90Nb9.10O30 and K4Fe1.56Nb6.44O21.4 Single Crystals

2012 ◽  
Vol 36 ◽  
pp. 446-454
Author(s):  
Jean-Kuo Tai ◽  
You-Yun Li ◽  
Xiaoding Qi
2002 ◽  
Vol 755 ◽  
Author(s):  
Bernd Renner ◽  
Stefan Ebbinghaus ◽  
Armin Reller ◽  
David Schrupp ◽  
Hans-Albrecht Krug von Nidda ◽  
...  

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.


2014 ◽  
Vol 215 ◽  
pp. 372-377 ◽  
Author(s):  
A.I. Pankrats ◽  
K.A. Sablina ◽  
D.A. Velikanov ◽  
O.A. Bayukov ◽  
A.M. Vorotynov ◽  
...  

PbFeBO4 and PbMnBO4 single crystals were synthesized. The X-ray, magnetic, dielectric, Mössbauer, and resonance investigations of the crystals were fulfilled. It is established that single-crystal PbFeBO4 is an antiferromagnet with a Néel temperature TN =114 K, while PbMnBO4 is a ferromagnet with a Curie temperature TC = 31 K. Both single-crystal compounds have a strong anisotropy of the magnetic and dielectric properties.


2015 ◽  
Vol 51 (6) ◽  
pp. 3045-3055 ◽  
Author(s):  
Galina M. Kuz’micheva ◽  
Olesya I. Timaeva ◽  
Victor B. Rybakov ◽  
Irina A. Kaurova ◽  
Anna V. Kosinova ◽  
...  

2015 ◽  
Vol 241 ◽  
pp. 226-236 ◽  
Author(s):  
Neha Solanki ◽  
Rajshree B. Jotania

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


1994 ◽  
Vol 29 (15) ◽  
pp. 4061-4064 ◽  
Author(s):  
P. Selvarajan ◽  
B. N. Das ◽  
H. B. Gon ◽  
K. V. Rao

2011 ◽  
Vol 257 (17) ◽  
pp. 7573-7578 ◽  
Author(s):  
K. Sangeetha ◽  
R. Ramesh Babu ◽  
P. Kumar ◽  
G. Bhagvannarayana ◽  
K. Ramamurthi

2007 ◽  
Vol 350 ◽  
pp. 221-224
Author(s):  
Takeshi Yokota ◽  
Takaaki Kuribayashi ◽  
Takeshi Shundo ◽  
Keita Hattori ◽  
Yasutoshi Sakakibara ◽  
...  

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.


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