Giant Magnetoresistance and Layered Magnetic Structures

2002 ◽  
pp. 213-262
Author(s):  
D. M. Edwards
Keyword(s):  
Giant Magnetoresistance ◽  
Magnetic Structures

ChemInform Abstract: Layered Magnetic Structures: Interlayer Exchange Coupling and Giant magnetoresistance

ChemInform ◽  
2010 ◽  
Vol 26 (32) ◽  
pp. no-no
Author(s):  
A. FERT ◽  
P. GRUENBERG ◽  
A. BARTHELEMY ◽  
F. PETROFF ◽  
W. ZINN
Keyword(s):  
Exchange Coupling ◽  
Giant Magnetoresistance ◽  
Interlayer Exchange Coupling ◽  
Magnetic Structures ◽  
Interlayer Exchange

Layered magnetic structures: interlayer exchange coupling and giant magnetoresistance

1995 ◽  
Vol 140-144 ◽  
pp. 1-8 ◽  
Author(s):  
A. Fert ◽  
P. Grünberg ◽  
A. Barthélémy ◽  
F. Petroff ◽  
W. Zinn
Keyword(s):  
Exchange Coupling ◽  
Giant Magnetoresistance ◽  
Interlayer Exchange Coupling ◽  
Magnetic Structures ◽  
Interlayer Exchange

Neutrons Not Entitled to Retire at the Age of 60: More than Ever Needed to Reveal Magnetic Structures

2011 ◽  
Vol 170 ◽  
pp. 263-269 ◽  
Author(s):  
Clemens Ritter
Keyword(s):  
Rare Earth ◽  
Giant Magnetoresistance ◽  
High Temperature Superconductivity ◽  
Functional Materials ◽  
Symmetry Analysis ◽  
Magnetic Shape Memory ◽  
Magnetic Structures ◽  
Magnetic Symmetry ◽  
The Rare Earth

In 1949 Shull et al. [1] used for the first time neutrons for the determination of a magnetic structure. Ever since, the need for neutrons for the study of magnetism has increased. Two main reasons can be brought forward to explain this ongoing success: First of all a strong rise in research on functional materials (founding obliges) and secondly the increasing availability of easy to use programmes for the treatment of magnetic neutron diffraction data. The giant magnetoresistance effect, multiferroic materials, magnetoelasticity, magnetic shape memory alloys, magnetocaloric materials, high temperature superconductivity or spin polarized half metals: The last 15 years have seen the event of all these “hot topics” where the knowledge of the magnetism is a prerequisite for understanding the underlying functional mechanisms. Refinement programs like FULLPROF or GSAS and programs for magnetic symmetry analysis like BASIREPS or SARAH make the determination of magnetic structures accessible for non specialists. Following a historical overview on the use of neutron powder diffraction for the determination of magnetic structures, I will try to convince you of the easiness of using magnetic symmetry analysis for the determination of magnetic structures using some recent examples of own research on the rare earth iron borate TbFe3(BO3)4 and the rare earth transition metal telluride Ho6FeTe2.

Magnetic structures of giant magnetoresistance systems, Fe/Cr and NiFe/Cu/Co/Cu, studied by neutron diffraction

1993 ◽  
Vol 126 (1-3) ◽  
pp. 255-256 ◽  
Author(s):  
N. Hosoito ◽  
K. Mibu ◽  
T. Ono ◽  
T. Shinjo ◽  
Y. Endoh
Keyword(s):  
Neutron Diffraction ◽  
Giant Magnetoresistance ◽  
Magnetic Structures

scholarly journals First-principle calculations of the exchange interaction characteristics for multilayer magnetic structures

2018 ◽  
Vol 185 ◽  
pp. 03007 ◽  
Author(s):  
Marina Mamonova ◽  
Vladimir Prudnikov
Keyword(s):  
Exchange Interaction ◽  
Giant Magnetoresistance ◽  
Multilayer Structures ◽  
Hard Disks ◽  
Magnetic Multilayer ◽  
Generalized Gradient ◽  
Magnetic Structures ◽  
Spintronic Devices ◽  
Ferromagnetic Layers ◽  
Projector Augmented Wave

Magnetic multilayer structures which consist of the ferromagnetic layers separated by nonmagnetic layers with giant magnetoresistance (GMR) are widely used as spintronic devices and read heads of hard disks. In this work magnetic and exchange interaction characteristics of Co/Cu/Co, Ni/Cu/Ni and Fe/Cr/Fe multilayer structures are studied by using VASP software package within the Projector Augmented Wave (PAW) method with generalized-gradient approximation (GGA PBE).The finite temperature magnetism of these structures was studied by Monte-Carlo simulations with the use of the exchange interaction parameters obtained from the ab initio results.

Magneto-Optical Investigation of Thin-Film Magnetic Structures

2013 ◽  
Vol 543 ◽  
pp. 247-250 ◽  
Author(s):  
Natalia Tsidaeva ◽  
Viktorija Abaeva ◽  
Elena Enaldieva ◽  
Tamerlan T. Magkoev ◽  
Anatolij Turiev ◽  
...  
Keyword(s):  
Exchange Coupling ◽  
Giant Magnetoresistance ◽  
Magnetic Interaction ◽  
Antiferromagnetic Interaction ◽  
Multilayer Structures ◽  
Optical Investigation ◽  
Magnetic Structures ◽  
Magnetic Layers ◽  
Spacer Layer ◽  
Nonmagnetic Spacer

After the discovery of antiferromagnetic interaction [, giant magnetoresistance [ and oscillating magnetic interaction [, the exchange coupling between magnetic layers across the conductive nonmagnetic spacer layer in multilayer structures have been attracted much attention [4-.

Simulation of magnetic properties of spin valve nanostructures

2020 ◽  
Vol 25 (4) ◽  
pp. 36-45
Author(s):  
Vladimir V. Prudnikov ◽  
Pavel V. Prudnikov ◽  
Egor V. Drovorub ◽  
Nikita S. Simakov
Keyword(s):  
Magnetic Properties ◽  
Giant Magnetoresistance ◽  
Spin Valve ◽  
Monte Carlo Study ◽  
Magnetic Characteristics ◽  
Anisotropic Model ◽  
Magnetic Structures ◽  
Ferromagnetic Films ◽  
Interlayer Exchange ◽  
Hysteresis Phenomena

The Monte Carlo study of spin-valve magnetic structures with giant magnetoresistance effects has been performed with the application of the Heisenberg anisotropic model to the description of the magnetic properties of ultrathin ferromagnetic films. The dependences of the magnetic characteristics on the temperature and external magnetic field have been obtained. Dependence of hysteresis phenomena on thickness of ferromagnetic films and various values of intralayer and interlayer exchange interaction is studied.

scholarly journals SIMULATION OF BEHAVIOR AND CALCULATION OF MAGNETORESISTANCE IN SPIN VALVE NANOSTRUCTURES

2020 ◽  
Vol 25 (1) ◽  
pp. 22-28
Author(s):  
Vladimir Vasiljevich Prudnikov ◽  
Pavel Vladimirovich Prudnikov ◽  
Anna Andreevna Samoshilova ◽  
Kirill Aleksandrovich Khristovskii
Keyword(s):  
Magnetic Field ◽  
Monte Carlo ◽  
Giant Magnetoresistance ◽  
Spin Valve ◽  
Monte Carlo Study ◽  
Magnetic Films ◽  
Magnetic Characteristics ◽  
Anisotropic Model ◽  
Magnetic Structures ◽  
Ferro Magnetic

The Monte Carlo study of spin-valve magnetic structures with giant magnetoresistance ef-fects has been performed with the application of the Heisenberg anisotropic model to the description of the magnetic properties of ultrathin ferromagnetic films. The dependences of the magnetic characteristics on the temperature and external magnetic field have been obtained for the ferromagnetic configurations of these structures. A Monte Carlo method for determining the magnetoresistance has been developed. The magnetoresistance coef-ficient has been calculated for spin-valve structures at various nanothicknesses of ferro-magnetic films.

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