scholarly journals Low-magnetic-field control of dielectric constant at room temperature realized in Ba0.5Sr1.5Zn2Fe12O22

2009 ◽  
Vol 11 (7) ◽  
pp. 073030 ◽  
Author(s):  
Y S Chai ◽  
S H Chun ◽  
S Y Haam ◽  
Y S Oh ◽  
Ingyu Kim ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Dielectric Constant ◽  
Room Temperature ◽  
Field Control ◽  
Low Magnetic Field

Low-Magnetic-Field Control of Electric Polarization Vector in a Helimagnet

Science ◽  
2008 ◽  
Vol 319 (5870) ◽  
pp. 1643-1646 ◽  
Author(s):  
S. Ishiwata ◽  
Y. Taguchi ◽  
H. Murakawa ◽  
Y. Onose ◽  
Y. Tokura
Keyword(s):  
Magnetic Field ◽  
Polarization Vector ◽  
Electric Polarization ◽  
Field Control ◽  
Low Magnetic Field

Glass-Coated Cu-Mn-Ga Microwires Produced by Taylor-Ulitovsky Technique

2009 ◽  
Vol 152-153 ◽  
pp. 79-84 ◽  
Author(s):  
Joan Josep Suñol ◽  
L. Escoda ◽  
C. García ◽  
V.M. Prida ◽  
Victor Vega ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Solid Solution ◽  
Curie Temperature ◽  
Energy Dispersive Spectroscopy ◽  
Room Temperature ◽  
Alloy Composition ◽  
The Other ◽  
X Ray Diffraction ◽  
X Ray ◽  
Low Magnetic Field

Glass-coated Cu-Mn-Ga microwires were fabricated by Taylor-Ulitovsky technique. By means of energy dispersive spectroscopy microanalysis, an average alloy composition of Cu56Ga28Mn16 was determined. The temperature dependence of magnetization measured at a low magnetic field showed the coexistence of two ferromagnetic phases. The Curie temperature of one phase is 125 K and above room temperature for the other one. X-ray diffraction at room temperature and at 100 K reflects the presence of the same three crystalline phases corresponding to the cubic B2 Cu-Mn-Ga structure as a main phase and the minor phases of fcc Cu rich solid solution with Mn and Ga and the monoclinic CuO.

scholarly journals Magnetic-Field Control of Topological Electronic Response near Room Temperature in Correlated Kagome Magnets

2019 ◽  
Vol 123 (19) ◽  
Author(s):  
Yangmu Li ◽  
Qi Wang ◽  
Lisa DeBeer-Schmitt ◽  
Zurab Guguchia ◽  
Ryan D. Desautels ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Room Temperature ◽  
Field Control ◽  
Electronic Response

Structural, transport, magnetic and magnetoelectric properties of CaMn1−xFexO3−δ (0.0 ≤ x ≤ 0.4)

RSC Advances ◽  
2015 ◽  
Vol 5 (50) ◽  
pp. 39938-39945 ◽  
Author(s):  
Brajendra Singh
Keyword(s):  
Magnetic Field ◽  
Structural Transformation ◽  
Room Temperature ◽  
Fe Doping ◽  
Lattice Constants ◽  
Magnetoelectric Properties ◽  
Low Magnetic Field

Fe doping induces (i) structural transformation from orthorhombic to cubic (ii) increase in lattice constants and (iii) room temperature positive magnetocapacitance at low magnetic field in CaMn1−xFexO3−δ (0.0 ≤ x ≤ 0.4) manganites.

Room-temperature magnetoelectric coupling, dielectric and impedance studies of 0.5Zn0.3Ni0.7Fe2O4–0.5HoMnO3 nanocomposite

2018 ◽  
Vol 32 (19) ◽  
pp. 1840060 ◽  
Author(s):  
Rajesh Debnath ◽  
S. K. Mandal ◽  
A. Nath ◽  
P. Dey
Keyword(s):  
Magnetic Field ◽  
Dielectric Constant ◽  
Grain Boundaries ◽  
Applied Magnetic Field ◽  
Room Temperature ◽  
Transverse Direction ◽  
Dominant Role ◽  
Dc Magnetic Field ◽  
Nyquist Plots

We have investigated strain mediated magnetoelectric (ME) coupling and impedance properties in 0.5Zn[Formula: see text]Ni[Formula: see text]Fe2O4–0.5HoMnO3 nanocomposites at room-temperature. The ME voltage is measured in both longitudinal and transverse direction at a frequency of 173 Hz. The impedance, real and imaginary parts of impedance and dielectric constant have been carried out in presence of DC magnetic field. With the application of magnetic field, slight decrease in dielectric constant has been observed. The impedance, real and imaginary parts of impedance are found to increase with the increase in the applied magnetic field. Nyquist plots have been fitted using three parallel combinations of resistances–capacitance circuits. Fitted parameters show the dominant role of grain boundaries, grains and interface of two types of grains of the sample.

Dielectric enhancement with low dielectric loss in textured ZnO films inserted with NiFe

2017 ◽  
Vol 5 (6) ◽  
pp. 1394-1401 ◽  
Author(s):  
Po-Wei Chi ◽  
Da-Hua Wei
Keyword(s):  
Magnetic Field ◽  
Dielectric Constant ◽  
External Magnetic Field ◽  
Dielectric Loss ◽  
Room Temperature ◽  
Magnetic Field Dependence ◽  
Zno Films ◽  
Low Dielectric ◽  
Dielectric Enhancement ◽  
Temperature Controlled

A magnetic field dependence can be clearly observed in the dielectric constant of ZnO/NiFe/ZnO heterostructures (typically non-ferroelectric system) at room temperature controlled by a low external magnetic field.

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