Synthesis of new double perovskites La1.98Mn1.11Mo0.89O5.93 and La1.92Mn1.29Mo0.71O5.84: Characterization of structural and magnetic properties

2016 ◽  
Vol 681 ◽  
pp. 444-454 ◽  
Author(s):  
V. Fuster ◽  
M.C. Blanco ◽  
D.G. Franco ◽  
G. Tirao ◽  
V.M. Nassif ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Double Perovskites ◽  
Structural And Magnetic Properties

Characterization of Antiferromagnetism in Double Perovskites Ba2FeMoO6 Prepared by Solid State Method

2019 ◽  
Vol 891 ◽  
pp. 224-229
Author(s):  
Naphat Albutt ◽  
Vanussanun Aitviriyaphan ◽  
Thanapong Sareein ◽  
Sudarath Suntaropas ◽  
Panakamon Thonglor ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Solid State ◽  
Solid State Reaction ◽  
Double Perovskite ◽  
Solid State Reaction Method ◽  
Double Perovskites ◽  
Solid State Method ◽  
Reaction Method ◽  
State Method

The magnetic properties of Ba2FeMoO6 (BFMO) double perovskite are investigated. BFMO samples were prepared by solid state reaction method through compression. Magnetic properties are influenced by electron environments of the Fe3+ and Mo5+ ions within the perovskite structure. BFMO sintered at 800 oC exhibited the largest hysteresis loop at 50 K. In addition, the values of Ms and Mr indicate ferromagnetic behaviour in BFMO ceramics sintered at 800 oC for different times up to 10 hours. Using the Curie-Weiss law fitting to investigate μeff~30μB high spin of Fe and Mo, and negative θ present the antiferromagnetic characteristics of the BFMO sample.

scholarly journals Structural and Magnetic Properties of the Osmium Double Perovskites Ba2–xSrxYOsO6

2017 ◽  
Vol 56 (11) ◽  
pp. 6565-6575 ◽  
Author(s):  
Paula Kayser ◽  
Sean Injac ◽  
Brendan J. Kennedy ◽  
Thomas Vogt ◽  
Maxim Avdeev ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Double Perovskites ◽  
Structural And Magnetic Properties

scholarly journals Characterization of the structural and magnetic properties of Nd16Co76-xRu xC7B alloys

2007 ◽  
Vol 37 (3b) ◽  
Author(s):  
C. Paduani ◽  
J. A. Valcanover ◽  
J. D. Ardisson ◽  
C. A. Samudio Pérez ◽  
M. I. Yoshida
Keyword(s):  
Magnetic Properties ◽  
Structural And Magnetic Properties

scholarly journals Structural and Magnetic Properties of Ba3[Cu0.8−xZnxMn0.2]2Fe24O41 Z-Type Hexaferrites

2018 ◽  
Vol 2018 ◽  
pp. 1-11
Author(s):  
Eman S. Al-Hwaitat ◽  
Sami H. Mahmood ◽  
Mahmoud Al–Hussein ◽  
Ibrahim Bsoul
Keyword(s):  
Magnetic Properties ◽  
Anisotropy Field ◽  
High Energy ◽  
X Ray Diffraction ◽  
Zn Content ◽  
Energy Ball ◽  
Structural And Magnetic Properties ◽  
Ball Milling Technique ◽  
Xrd Patterns

We report on the synthesis and characterization of Ba3[Cu0.8−xZnxMn0.2]2Fe24O41 (x = 0.0, 0.2, 0.4, 0.6, and 0.8) barium hexaferrites. The samples were prepared by high-energy ball-milling technique and double-sintering approach. The effects of Zn substitution for Cu on the structural and magnetic properties of the prepared samples were investigated using X-ray diffraction (XRD), scanning electron microscopy (SEM), and vibrating sample magnetometer (VSM). XRD patterns of the samples revealed the presence of a major Z-type hexaferrite phase, together with secondary M-type and Y-type phases. The magnetic results indicated that the saturation magnetization increased slightly with increasing the Zn content, while the coercivity and magnetocrystalline anisotropy field exhibited a decreasing tendency with the increase of Zn content. The thermomagnetic curves revealed the complex magnetic structure of the prepared samples and confirmed that the Curie temperature of the magnetic phases decreased with increasing x as a result of the reduction of the strength of the superexchange interactions.

Evolution of transition metal charge states in correlation with the structural and magnetic properties in disordered double perovskites Ca2−xLaxFeRuO6 (0.5 ≤ x ≤ 2)

2021 ◽  
Vol 23 (38) ◽  
pp. 21769-21783
Author(s):  
Kumari Naveen ◽  
Tanmay Rom ◽  
Shams Sohel Islam ◽  
Manfred Reehuis ◽  
Peter Adler ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Transition Metal ◽  
Double Perovskites ◽  
Metal Charge ◽  
Electronic And Magnetic Properties ◽  
Structural And Magnetic Properties ◽  
Charge States ◽  
A Site

La-based B-site disordered double perovskites, Ca2−xLaxFeRuO6, have been investigated thoroughly. The effects of A-site substitution on the charge states and electronic and magnetic properties have been determined in a series of 3d/4d perovskites.

Structural and Magnetic Properties of the Iridium Double Perovskites Ba2–xSrxYIrO6

2015 ◽  
Vol 54 (21) ◽  
pp. 10468-10476 ◽  
Author(s):  
Ben Ranjbar ◽  
Emily Reynolds ◽  
Paula Kayser ◽  
Brendan J. Kennedy ◽  
James R. Hester ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Double Perovskites ◽  
Structural And Magnetic Properties

Preparation and Characterization of Magnetite/PEG Nanoparticles Combined with Curcumin for Drug Delivery Application

2020 ◽  
Vol 855 ◽  
pp. 299-307
Author(s):  
Kusnunnahari ◽  
Ahmad Taufiq ◽  
Arif Hidayat ◽  
Rosy Eko Saputro ◽  
Nandang Mufti
Keyword(s):  
Drug Delivery ◽  
Magnetic Properties ◽  
Drug Release ◽  
Functional Group ◽  
Diffraction Peak ◽  
Excellent Performance ◽  
Curcumin Nanoparticles ◽  
Crystallite Sizes ◽  
Structural And Magnetic Properties

In this work, the synthesis of magnetite/PEG nanoparticles combined with curcumin was conducted by using a simple coprecipitation method. The samples obtained were characterized using XRD, FTIR, and VSM for their structural and magnetic properties. Meanwhile, investigation of the potential as drug delivery agents was done through the drug release test using doxorubicin. The diffraction data analysis presented the addition of curcumin slightly decreased the diffraction peak of magnetite compared to without curcumin. The crystallite sizes of the magnetite/PEG and magnetite/PEG/curcumin were 13.9 nm and 13.7 nm, respectively. The functional group of the magnetite/PEG showed the presence of Fe-O bonds at a wavenumber of 587 cm-1 and 421 cm-1 originating from magnetite. Meanwhile, C-O-C and C-H bonds were observed at wavenumbers of 1108 cm-1 and 2883 cm-1 arising from PEG. Despite Fe-O, C-O-C, and C-H bonds, in magnetite/PEG/curcumin, it was also detected C=O bond at a wavenumber of 1621 cm-1, indicating the presence of the curcumin. Regarding the magnetic properties, the saturation magnetization value of the magnetite/PEG nanoparticles decreased after adding curcumin. Interestingly, the results of the doxorubicin drug release of the magnetite/PEG and magnetite/PEG/curcumin nanoparticles showed excellent performance as drug delivery agents.

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