Magnetic and electric properties of multiferroic LiFeP2O7. Comparison with LiCrP2O7

The temperature and magnetic field dependence of the magnetic and electric properties of LiFeP2O7 (LFPO) and LiCrP2O7 (LCPO) are studied using a microscopic model and the Green’s function technique. We have shown that LFPO is antiferromagnetic, but shows a weak ferromagnetism along the [Formula: see text] axis which originates from the canted antiferromagnetic order. For LCPO, such a ferromagnetic order along the [Formula: see text] axis is not observed. In the temperature dependence of the electrical polarization [Formula: see text] along the [Formula: see text] axis there is a kink at [Formula: see text] K which is an indirect evidence for the intrinsic magnetoelectric effect in LFPO. Applying an external magnetic field [Formula: see text], the polarization [Formula: see text] increases, stronger for small temperatures and the kink at [Formula: see text] disappears. For LCPO, we do not obtain a kink at [Formula: see text] K. LCPO is polar, but not ferroelectric. We can conclude that the missing magnetoelectric properties in LCPO could be due to the differences in the magnetic orders between LFPO and LCPO.

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

Journal of Science of the Gen Tadeusz Kosciuszko Military Academy of Land Forces ◽

10.5604/01.3001.0010.7234 ◽

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.

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Magnetoelectric Properties in Nickel Ferrite – Niobate Relaxor Bulk Composites

Advances in Science and Technology ◽

10.4028/www.scientific.net/ast.77.215 ◽

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.

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

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.215.95 ◽

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.

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Magnetic and electric properties of YbB12 under high magnetic field

Journal of Magnetism and Magnetic Materials ◽

10.1016/0304-8853(85)90280-x ◽

1985 ◽

Vol 52 (1-4) ◽

pp. 283-285 ◽

Cited By ~ 16

Author(s):

K. Sugiyama ◽

A. Ohya ◽

M. Date ◽

F. Iga ◽

M. Kasaya ◽

...

Keyword(s):

Magnetic Field ◽

High Magnetic Field ◽

Electric Properties ◽

Magnetic And Electric Properties

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Structural Investigation into Magnetic Spin Orders of a Manganese Phosphatic Oxyhydroxide, Mn5[(PO4)2(PO3(OH))2](HOH)4

Symmetry ◽

10.3390/sym13091688 ◽

2021 ◽

Vol 13 (9) ◽

pp. 1688

Author(s):

Sohyun Park ◽

Anna Hartl ◽

Denis Sheptyakov ◽

Markus Hoelzel ◽

Ana Arauzo

Keyword(s):

Structural Investigation ◽

Magnetic Moments ◽

Weak Ferromagnetism ◽

Antiferromagnetic Order ◽

Small Temperature ◽

Synthetic Compound ◽

Space Group ◽

Magnetic Orders ◽

Magnetic Spin ◽

Heat Capacity Measurements

The ferri- and antiferromagnetic structures of a hureaulite-type synthetic compound, Mn2+5(PO4)2(PO3(OH))2(HOH)4, were elucidated by high-resolution neutron powder diffraction in combination with magnetic susceptibility and heat capacity measurements. At 6.17 K, the paramagnetic phase (space group: C2/c) transforms to inherit a ferrimagnetic order (magnetic space group: C2′/c′), followed at 1.86 K by an incommensurately modulated antiferromagnetic order (magnetic superspace group: P21/c.1′(α0γ)00s with the propagation vector k(0.523(2), 0, 0.055(1)). In the ferrimagnetic state, antiferromagnetic interactions are dominant for both intra and inter pentamers of Mn2+(O, HOH)6 octahedra. Differently aligned spin-canting sublattices seen in the ferrimagnetic models at 3.4, 4.5, and 6.1 K explain a weak ferromagnetism in the title compound. The observation of magnetic moments vigorously changing in a small temperature range of 6.1–1.5 K adumbrates a high complexity of interplaying structural and magnetic orders in this manganese phosphatic oxyhydroxide.

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Formation of a periodic magnetic field by a sequence of rings with different magnetic and electric properties

Journal of Communications Technology and Electronics ◽

10.1134/s1064226907080013 ◽

2007 ◽

Vol 52 (8) ◽

pp. 835-841

Author(s):

D. Yu. Kopeichenko ◽

I. N. Onishchenko ◽

G. V. Sotnikov

Keyword(s):

Magnetic Field ◽

Electric Properties ◽

Periodic Magnetic Field ◽

Magnetic And Electric Properties

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Electro-Assisted Magnetization Switching in Asymmetric Spin-Valves

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.190.133 ◽

2012 ◽

Vol 190 ◽

pp. 133-136

Author(s):

V. Sohatsky

Keyword(s):

Magnetic Field ◽

Energy Balance ◽

Applied Magnetic Field ◽

Spin Valve ◽

Electric Properties ◽

Spin Valves ◽

Magnetization Switching ◽

Current Dependence ◽

Magnetic And Electric Properties ◽

Spin Transistor

The magnetic and electric properties of Fe/Cu/Fe sandwiches deposited on Si were studied in order to improve the efficiency of such a model of spin transistor with a spin-valve. Evaluations of the energy balance and measurements of current dependence on voltage and applied magnetic field confirmed the possibility of amplification increasing in case of additional effect of current on remagnetization.

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WANG–LANDAU SIMULATION ON THERMODYNAMIC AND MAGNETIC PROPERTIES OF HONEYCOMB LATTICE

International Journal of Modern Physics B ◽

10.1142/s0217979211101727 ◽

2011 ◽

Vol 25 (26) ◽

pp. 3435-3442

Author(s):

XIAOYAN YAO

Keyword(s):

Magnetic Field ◽

Monte Carlo Simulation ◽

Magnetic Properties ◽

Free Energy ◽

Magnetic Susceptibility ◽

Magnetic Property ◽

Ground State ◽

Antiferromagnetic Order ◽

Honeycomb Lattice ◽

Antiferromagnetic Ising Model

Wang–Landau algorithm of Monte Carlo simulation is performed to understand the thermodynamic and magnetic properties of antiferromagnetic Ising model on honeycomb lattice. The internal energy, specific heat, free energy and entropy are calculated to present the thermodynamic behavior. For magnetic property, the magnetization and magnetic susceptibility are discussed at different temperature upon different magnetic field. The antiferromagnetic order is confirmed to be the ground state of the system, and it can be destroyed by a large magnetic field.

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