A novel study on soft ferromagnetic nature of nano molybdenum sulphide (MoS2)

2019 ◽  
Vol 574 ◽  
pp. 411684 ◽  
Author(s):  
Navpreet Kaur ◽  
Rameez Ahmad Mir ◽  
O.P. Pandey
Keyword(s):  
Soft Ferromagnetic ◽  
Ferromagnetic Nature ◽  
Molybdenum Sulphide

The Structure and Magnetic Properties of Bronze, Stainless still and Alloy Layers Formed by Direct Laser Welding on Nonmagnetic Substrates

2016 ◽  
Vol 247 ◽  
pp. 158-167
Author(s):  
Nikolay G. Galkin ◽  
Yuri N. Kulchin ◽  
Evgenii P. Subbotin ◽  
Dmitrii S. Yatsko ◽  
Konstantin Nickolaevich Galkin ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Magnetic Hysteresis ◽  
Hysteresis Loops ◽  
Magnetic Domains ◽  
Ferromagnetic Domains ◽  
Direct Laser ◽  
Soft Ferromagnetic ◽  
Ferromagnetic Nature ◽  
Magnetic Hysteresis Loops ◽  
Stainless Steel Coatings

Investigations of crystal structure, microstructure and composition of laser welded coatings of bronze, IN625, PGSR-4 and stainless steel alloys on non-magnetic substrates have shown that from the raw alloy powders (wire) the additional crystalline phases are extracted with new compositions and sizes of units of microns, which randomly distributed in the coating volume. Due to formation of additional phases with increased electron concentration magnetic hysteresis loops have appeared at 4 K and 300 K for all welded coatings. Bronze and stainless steel coatings have demonstrated soft ferromagnetic properties with two type of magnetic domains with small magnetization that resulted in small value of saturation magnetization (Ms = 60-146 emu/cm3 at 300 K and Ms = 107-241 emu/cm3 at 4 K) and low values of coercive force (40 – 90 Oe) at 300 K and (50-170 Oe) at 4 K. En existence of one type of ferromagnetic domains with middle Curie temperatures (230-270 K) in laser welded IN625 and PGSR-4 coatings has determined soft ferromagnetic nature of magnetism at low temperature (Ms =274 – 398 emu/cm3) and transition in paramagnetic conditions at 300 K due to main contribution only paramagnetic grains with different composition.

PHENOMENOLOGY OF BARKHAUSEN EFFECT IN SOFT FERROMAGNETIC MATERIALS

1988 ◽  
Vol 49 (C8) ◽  
pp. C8-1907-C8-1908 ◽  
Author(s):  
B. Alessandro ◽  
G. Bertotti ◽  
A. Montorsi
Keyword(s):  
Ferromagnetic Materials ◽  
Barkhausen Effect ◽  
Soft Ferromagnetic

scholarly journals Control of Structural and Magnetic Properties of Polycrystalline Co2FeGe Films via Deposition and Annealing Temperatures

Nanomaterials ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1229
Author(s):  
Andrii Vovk ◽  
Sergey A. Bunyaev ◽  
Pavel Štrichovanec ◽  
Nikolay R. Vovk ◽  
Bogdan Postolnyi ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Spin Transfer Torque ◽  
Spin Transfer ◽  
Post Deposition Annealing ◽  
Structure Variation ◽  
Annealing Temperatures ◽  
Damping Parameter ◽  
Soft Ferromagnetic ◽  
Thin Polycrystalline ◽  
Post Deposition

Thin polycrystalline Co2FeGe films with composition close to stoichiometry have been fabricated using magnetron co-sputtering technique. Effects of substrate temperature (TS) and post-deposition annealing (Ta) on structure, static and dynamic magnetic properties were systematically studied. It is shown that elevated TS (Ta) promote formation of ordered L21 crystal structure. Variation of TS (Ta) allow modification of magnetic properties in a broad range. Saturation magnetization ~920 emu/cm3 and low magnetization damping parameter α ~ 0.004 were achieved for TS = 573 K. This in combination with soft ferromagnetic properties (coercivity below 6 Oe) makes the films attractive candidates for spin-transfer torque and magnonic devices.

scholarly journals Soft Ferromagnetic Bulk Metallic Glass with Potential Self-Healing Ability

Materials ◽  
2020 ◽  
Vol 13 (6) ◽  
pp. 1319
Author(s):  
Parthiban Ramasamy ◽  
Mihai Stoica ◽  
Gabriel Ababei ◽  
Nicoleta Lupu ◽  
Jürgen Eckert
Keyword(s):  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
Vital Role ◽  
Self Healing ◽  
Local Melting ◽  
Mold Casting ◽  
Soft Ferromagnetic ◽  
Molten Droplets ◽  
Shear Transformation Zones ◽  
Ferromagnetic Bulk

A new concept of soft ferromagnetic bulk metallic glass (BMG) with self-healing ability is proposed. The specific [Fe36Co36B19.2Si4.8Nb4]100−x(Ga)x (x = 0, 0.5, 1 and1.5) BMGs prepared by copper mold casting were investigated as a function of Ga content. The Ga-containing BMGs still hold soft magnetic properties and exhibit large plastic strain of 1.53% in compression. Local melting during shearing produces molten droplets of several µm size throughout the fracture surface. This concept of local melting during shearing can be utilized to produce BMGs with self-healing ability. The molten regions play a vital role in deflecting shear transformation zones, thereby enhancing the mechanical properties.

Elastic Stress and Magnetic Field Concentration Near the Vertex of a Soft-Ferromagnetic 2D Compound Wedge

2008 ◽  
Vol 75 (4) ◽  
pp. 041013
Author(s):  
Davresh Hasanyan ◽  
Zhanming Qin ◽  
Liviu Librescu
Keyword(s):  
Magnetic Field ◽  
Elastic Stress ◽  
Soft Ferromagnetic

Soft ferromagnetic materials based on iron/carbon multilayers

2007 ◽  
Vol 394 (2) ◽  
pp. 273-276
Author(s):  
D.R. McKenzie ◽  
S.C.H. Kwok ◽  
M.M. Bilek ◽  
D.G. McCulloch ◽  
P.K. Chu
Keyword(s):  
Ferromagnetic Materials ◽  
Soft Ferromagnetic
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