scholarly journals Особенности структурных свойств и магнитополевого поведения тонкопленочных трехслойных Fe/полидифениленфталид/Fe-систем

2018 ◽  
Vol 60 (9) ◽  
pp. 1693
Author(s):  
Е.Е. Шалыгина ◽  
А.М. Харламова ◽  
А.В. Макаров ◽  
Т.П. Каминская ◽  
А.Н. Шалыгин
Keyword(s):  
Magnetic Field ◽  
Thin Film ◽  
Magnetic Properties ◽  
Hysteresis Loops ◽  
Step Size ◽  
Near Surface ◽  
Magnetic Layers ◽  
The Mean ◽  
Structural And Magnetic Properties ◽  
The Difference

AbstractThe structural and magnetic properties of thin-film Fe/poly(diphenylene phthalide) (PDP)/Fe systems are studied, along with the behavior of these systems in magnetic fields. The mean surface roughness of the studied samples is around 5–8 nm, and local near-surface magnetic properties show variation within 10%. The samples are characterized by two-step hysteresis loops, the step size depending on the thickness of the polymer layer and the difference in the thickness between the magnetic layers. The results are explained by the effects the exchange interaction between the magnetic layers, mediated by the PDP interlayer, has on the behavior of our samples in a magnetic field.

Structural and Magnetic Properties of Tetragonal Mn1.19Fe0.81As Thin Film Grown on Si(001)

2008 ◽  
Vol 52 (11) ◽  
pp. 96 ◽  
Author(s):  
Younghun Hwang ◽  
Jeongyong Choi ◽  
Suk-Hee Han ◽  
Sungyoul Choi ◽  
Yong-Hamb Kim ◽  
...  
Keyword(s):  
Thin Film ◽  
Magnetic Properties ◽  
Structural And Magnetic Properties

(111)-Oriented Co0.8Fe2.2O4+δ thin film grown by pulsed laser deposition: structural and magnetic properties

2013 ◽  
Vol 48 (20) ◽  
pp. 6960-6969 ◽  
Author(s):  
M. Khodaei ◽  
S. A. Seyyed Ebrahimi ◽  
Yong Jun Park ◽  
Sun Hee Choi ◽  
CheolGi Kim ◽  
...  
Keyword(s):  
Thin Film ◽  
Magnetic Properties ◽  
Pulsed Laser Deposition ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Structural And Magnetic Properties

Structural and Magnetic Properties of Sm(CobalFe0.1Ni0.12Zr0.04B0.04)7.5 Melt Spun Ribbons

2010 ◽  
Vol 636-637 ◽  
pp. 404-410
Author(s):  
Sofoklis S. Makridis
Keyword(s):  
Magnetic Properties ◽  
Hysteresis Loops ◽  
Secondary Phase ◽  
Maximum Energy ◽  
Tem Analysis ◽  
Energy Product ◽  
Average Grain Size ◽  
Melt Spun ◽  
Melt Spun Ribbons ◽  
Structural And Magnetic Properties

We have investigated the structural and magnetic properties of Sm(Co0.70Fe0.1Ni0.12Zr0.04B0.04)7.5 melt spun ribbons. The arc-melted bulk samples have been used to obtain ribbons at 37 up to 55 m/sec while annealing has been performed in argon atmosphere for 30-75 min at 600-870 oC. In as-spun ribbons the hexagonal SmCo7 (TbCu7-type of structure) of crystal structure has been determined from x-ray diffraction patterns, while fcc-Co has been identified as a secondary phase. After annealing, the 1:7 phase of the as-spun ribbons transforms into 2:17 and 1:5 phases. TEM analysis shows a homogeneous nanocrystalline microstructure with average grain size of 30-80 nm. Coercivity values of 15-27 kOe are obtained from hysteresis loops traced at non-saturating fields. The coercivity decreases as temperature increases, but it is high enough to maintain values higher than 5 kOe at 380 oC. The maximum energy product at room temperature increases, as high as 7.2 MGOe, for melt-spun ribbons produced at higher wheel speed.

scholarly journals Structural and Magnetic Properties of Ni0.8Fe0.2/Ti Nanoscale Multilayers

Nanomaterials ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 780 ◽  
Author(s):  
Ricardo López Antón ◽  
Juan A. González ◽  
Juan P. Andrés ◽  
Andrei V. Svalov ◽  
Galina V. Kurlyandskaya
Keyword(s):  
Magnetic Properties ◽  
Temperature Dependence ◽  
Layered Structure ◽  
Magnetic Measurements ◽  
Hysteresis Loops ◽  
Multilayered Structures ◽  
X Ray ◽  
Structural And Magnetic Properties

The influence of the thickness of the Ni0.8Fe0.2 (Permalloy, Py) layers on the structural and magnetic properties of magnetron sputtered Py/Ti multilayers was studied. The thickness of the Py layers was varied in the interval of 8 to 30 Å. X-ray reflectivity scans evidence the existence of a well-defined layered structure in all the samples considered, but also the presence of a complex intermixed interface. The shape of both the temperature dependence of magnetization and the hysteresis loops of the multilayered structures depends strongly on Py thickness. Magnetic and reflectivity measurements were comparatively analyzed in order to better understand the structure of the samples, and specifically, their interfaces. In particular, the presence of small superparamagnetic Py at the interfaces of the samples, especially evident in the samples with the thinnest Py layers, seems confirmed by the magnetic measurements, agreeing well with the reflectivity results.

scholarly journals Effect of applied magnetic field on the electroplating and magnetic properties of amorphous FeNiPGd thin film

2020 ◽  
Vol 495 ◽  
pp. 165872 ◽  
Author(s):  
Lin-Lin Yang ◽  
Chunhuan Chen ◽  
Jie Yuan ◽  
Li-Yin Gao ◽  
Zhengang Shang ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Thin Film ◽  
Magnetic Properties ◽  
Applied Magnetic Field

Magnetic and magnetoresistive properties of nanocomposites based on Co and SiO

2019 ◽  
Vol 33 (12) ◽  
pp. 1950113 ◽  
Author(s):  
I. M. Pazukha ◽  
Y. O. Shkurdoda ◽  
A. M. Chornous ◽  
L. V. Dekhtyaruk
Keyword(s):  
Magnetic Field ◽  
Thin Film ◽  
Magnetic Properties ◽  
Room Temperature ◽  
Annealing Process ◽  
Anisotropic Character ◽  
Co Concentration ◽  
Beam Method ◽  
The Magnetic Field ◽  
Film Nanocomposites

A series of thin-film nanocomposites based on ferromagnetic metal Co and insulator SiO were prepared using an electron-beam method. The magnetoresistive and magnetic properties of these structures deposited at room temperature and then annealed to 700 K were investigated. The results showed that at the Co concentration 40 [Formula: see text]x [Formula: see text] 60 at.%, thin-film nanocomposites exhibit magnetoresistance (MR) that is conditional on spin-dependent tunnelling of electrons. This range of concentrations corresponds to the prepercolation area according to the magnetic investigations. For samples with x [Formula: see text] 70 at.%, the anisotropic character of MR peculiar to the homogeneous ferromagnetic materials appears. According to the magnetic properties study, this range of concentrations corresponds to the area after transition through the percolation threshold. The annealing process in temperature range from 300 K to 700 K in the magnetic field slightly influenced the magnetoresistive properties of the thin-film nanocomposites based on Co and SiO for all range of concentrations.

Structural and magnetic properties of nanocrystalline NiFe2O4 thin film prepared by spray pyrolysis technique

2018 ◽  
Author(s):  
Apparao R. Chavan ◽  
R. R. Chilwar ◽  
M. V. Shisode ◽  
Mahesh M. Hivrekar ◽  
V. K. Mande ◽  
...  
Keyword(s):  
Thin Film ◽  
Magnetic Properties ◽  
Spray Pyrolysis ◽  
Spray Pyrolysis Technique ◽  
Structural And Magnetic Properties

MAGNETIC PROPERTIES OF THE Dy1-xUxCo3 SYSTEM

2010 ◽  
Vol 24 (32) ◽  
pp. 3041-3047
Author(s):  
ILEANA LUPŞA ◽  
T. PETRIŞOR ◽  
I. BALASZ-MUREŞAN
Keyword(s):  
Magnetic Field ◽  
Magnetic Properties ◽  
Crystalline Structure ◽  
Exchange Field ◽  
Transition Temperatures ◽  
Temperature Range ◽  
The Mean

The magnetic properties of Dy 1-x U x Co 3 system were investigated in the 4.3–1150 K temperature range and magnetic field up to 120 kOe. The crystalline structure is rhombohedral of PuNi 3 type. For x≤0.8, the samples exhibit a ferrimagnetic behavior. The uranium substitution for dysprosium leads to the decreasing of the exchange field and the reducing of the magnetization and the transition temperatures. The Co mean moments (1.9μB/ Co for x=0) opposite to the dysprosium ones and the mean effective Co moments (3.75μB/ Co for x=0) are gradually decreasing as Dy is replaced by uranium.

Structural and Magnetic Properties of Fe73,5Si13,5B9Nb3Cu1 Microwires Produced by Modernized Ulitovsky-Taylor Method

2015 ◽  
Vol 233-234 ◽  
pp. 277-280
Author(s):  
Elena E. Shalygina ◽  
Aleksander N. Shalygin ◽  
Anna M. Kharlamova ◽  
Vaycheslav V. Molokanov ◽  
Tatiana R. Chueva ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
High Strength ◽  
Geometric Parameters ◽  
Magnetic Characteristics ◽  
High Plasticity ◽  
Surface Layers ◽  
Near Surface ◽  
Structural And Magnetic Properties ◽  
Taylor Method ◽  
Amorphous Microwires

Results of the investigation of the mechanical, elastic and magnetic characteristics of the “thick” Fe73,5Si13,5B9Nb3Cu1 amorphous microwires, produced by the modernized Ulitovsky–Taylor method, are presented. The cores of the Fe73,5Si13,5B9Nb3Cu1 microwires were found to have the stable geometric parameters along their length and the smooth (almost without defects) surface. The microwires are characterized by the high plasticity and the high strength. The stable geometric parameters of the Fe73,5Si13,5B9Nb3Cu1 microwires along their lengths cause the slight dispersion of magnetic anisotropy of the near-surface layers. As a result, the microwires exhibit the high homogeneity of the near-surface local magnetic properties. The strong influence of the stretching and torsion tensions on the remagnetization signal of the microwires was discovered.

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