Structural and Magnetic Properties of Off-Stochiometric Ni-Mn-Al Heusler Alloy Thin Film

2008 ◽  
Vol 136 ◽  
pp. 139-144
Author(s):  
Vijay Kumar Srivastava ◽  
Saurabh Srivastava ◽  
Ratnamala Chatterjee
Keyword(s):  
Magnetic Properties ◽  
Heusler Alloy ◽  
Room Temperature ◽  
Rf Magnetron Sputtering ◽  
Silicon Substrates ◽  
Alloy Thin Film ◽  
Vibrating Sample Magnetometer ◽  
Good Crystallinity ◽  
Deposited Film ◽  
Full Heusler

The initials results on growth and structural properties of Ni-Mn-Al full Heusler alloy thin films on silicon substrates deposited by RF magnetron sputtering is reported in this paper. Good crystallinity in the film is obtained by optimizing the sputtering parameters. The as-deposited film was post-annealed in vacuum in the temperature range between 150 °C, 250 °C and 450 °C for 60 min. It is observed that as deposited film shows nanocrystalline in nature. The film annealed at 450 °C shows L21 structure. The magnetic properties of the NiMnAl films at room temperature are measured by vibrating sample magnetometer [VSM]. It is found that the annealed samples shows clear saturating loop whereas the as prepared film is paramagnetic in nature.

Effect of Annealing temperature on the Structural and Magnetic Properties of TbxY3-xFe5O12(x = 0.0, 1.0, 2.0) Thin Films Prepared by Sol-Gel Process

2012 ◽  
Vol 501 ◽  
pp. 236-241 ◽  
Author(s):  
Ftema W. Aldbea ◽  
Noor Bahyah Ibrahim ◽  
Mustafa Hj. Abdullah ◽  
Ramadan E. Shaiboub
Keyword(s):  
Thin Films ◽  
Magnetic Properties ◽  
Room Temperature ◽  
Annealing Temperature ◽  
Sol Gel ◽  
Vibrating Sample Magnetometer ◽  
X Ray ◽  
Garnet Phase ◽  
Sol Gel Process ◽  
Amorphous Structures

Thin films nanoparticles TbxY3-xFe5O12 (x=0.0, 1.0, 2.0) were prepared by the sol-gel process followed by annealing process at various annealing temperatures of 700° C, 800° C and 900° C in air for 2 h. The results obtained from X-ray diffractometer (XRD) show that the films annealed below 900°C exhibit peaks of garnet mixed with small amounts of YFeO3 and Fe2O3. Pure garnet phase has been detected in the films annealed at 900°C. Before annealing the films show amorphous structures. The particles sizes measurement using the field emission scanning electron microscope (FE-SEM) showed that the particles sizes increased as the annealing temperature increased. The magnetic properties were measured at room temperature using the vibrating sample magnetometer (VSM). The saturation magnetization (Ms) of the films also increased with the annealing temperature. However, different behavior of coercivity (Hc) has been observed as the annealing temperature was increased.

scholarly journals Theoretical Investigation of Electronic Structures, Elastic, and Magnetic Properties of Rh2CrGe Full-Heusler Alloy

2019 ◽  
Vol 136 (3) ◽  
pp. 454-459
Author(s):  
M. Mebrek ◽  
A. Mokaddem ◽  
F. Bouasria ◽  
B. Doumi ◽  
A. Mir ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Theoretical Investigation ◽  
Electronic Structures ◽  
Heusler Alloy ◽  
Full Heusler

scholarly journals Pressure dependent half-metallic ferromagnetism in inverse Heusler alloy Fe2CoAl: a DFT+U calculations

RSC Advances ◽  
2020 ◽  
Vol 10 (73) ◽  
pp. 44633-44640
Author(s):  
D. P. Rai ◽  
Lalrinkima ◽  
Lalhriatzuala ◽  
L. A. Fomin ◽  
I. V. Malikov ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Curie Temperature ◽  
First Principles ◽  
Heusler Alloy ◽  
Computational Method ◽  
Half Metallic ◽  
Electronic And Magnetic Properties ◽  
Full Heusler ◽  
Metallic Ferromagnetism ◽  
Half Metallic Ferromagnetism

We report the electronic and magnetic properties along with the Curie temperature (TC) of the inverse full Heusler alloy (HA) Fe2CoAl obtained using the first-principles computational method.

Magnetic properties of epitaxial Co/sub 2/Cr/sub 1-x/Fe/sub x/Al full Heusler alloy thin films with the L2/sub 1/ structure

2005 ◽  
Vol 41 (10) ◽  
pp. 2802-2804 ◽  
Author(s):  
A. Hirohata ◽  
H. Kurebayashi ◽  
S. Okamura ◽  
N. Tezuka ◽  
K. Inomata
Keyword(s):  
Thin Films ◽  
Magnetic Properties ◽  
Heusler Alloy ◽  
Full Heusler

Magnetic properties of full-Heusler alloy Co2Fe1−xMnxAl films grown by molecular-beam epitaxy

2010 ◽  
Vol 97 (23) ◽  
pp. 232506 ◽  
Author(s):  
K. K. Meng ◽  
S. L. Wang ◽  
P. F. Xu ◽  
L. Chen ◽  
W. S. Yan ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Molecular Beam Epitaxy ◽  
Heusler Alloy ◽  
Molecular Beam ◽  
Full Heusler

Preparation and Characterization of Sro-Na2O-Fe2O3-P2O5-SiO2 Ferrimagnetic Glass-Ceramics for Hyperthermia Application

2012 ◽  
Vol 581-582 ◽  
pp. 457-462
Author(s):  
Jian An Liu ◽  
Xue Na Yang ◽  
Mei Mei Zhang ◽  
Wen He
Keyword(s):  
Aqueous Solution ◽  
Magnetic Properties ◽  
Magnetic Property ◽  
Glass Ceramic ◽  
Room Temperature ◽  
Glass Ceramics ◽  
Vibrating Sample Magnetometer ◽  
Heat Treated ◽  
Molecular Scale

The ferrimagnetic glass-ceramic based on SrO-Na2O-Fe2O3-P2O5-SiO2 system was prepared for hyperthermia application using aqueous aolution-melt method. Using the aqueous solution solvent evaporation, we obtained the molecular-scale homogenously glass precursor. The precursor was completely melted in a lidded platinum crucible placed in an electric furnace at 1480°C for 1h and then annealed in a furnace at 550°C for 40min.The annealed glasses were heat treated at 1050°C for 2h to obtain the glass-ceramics. The crystallization of the glass systems with different component has been systematically investigated by using XRD. Room temperature magnetic property of the samples were investigated using a Vibrating Sample Magnetometer(VSM). The evolution of magnetic properties in these glasses as a function of P2O5 quality concentration was discussed.

Metal to semimetal transition and magnetic critical behavior at room temperature in the full Heusler alloy Fe2MnSi

2019 ◽  
Vol 52 (50) ◽  
pp. 505002 ◽  
Author(s):  
Shampa Guha ◽  
Sunil Kumar ◽  
Subhadeep Datta ◽  
Murli Kumar Manglam ◽  
Manoranjan Kar
Keyword(s):  
Critical Behavior ◽  
Heusler Alloy ◽  
Room Temperature ◽  
Full Heusler
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