scholarly journals Atomic scale understanding of magnetic properties in Ni50Fe35Co15

AIP Advances ◽  
2016 ◽  
Vol 6 (2) ◽  
pp. 025005 ◽  
Author(s):  
L. Herojit Singh ◽  
R. Govindaraj ◽  
C. Ravishankar ◽  
S. Rajagopalan ◽  
G. Amarendra
Keyword(s):  
Magnetic Properties ◽  
Atomic Scale

scholarly journals Visualizing atomic structure and magnetism of 2D magnetic insulators via tunneling through graphene

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Zhizhan Qiu ◽  
Matthew Holwill ◽  
Thomas Olsen ◽  
Pin Lyu ◽  
Jing Li ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Deep Understanding ◽  
Magnetic Coupling ◽  
Atomic Scale ◽  
Scanning Tunneling ◽  
Tunneling Microscopy ◽  
Electronic And Magnetic Properties ◽  
Conducting Path ◽  
Magnetic Insulators ◽  
Quantum Technology

AbstractThe discovery of two-dimensional (2D) magnetism combined with van der Waals (vdW) heterostructure engineering offers unprecedented opportunities for creating artificial magnetic structures with non-trivial magnetic textures. Further progress hinges on deep understanding of electronic and magnetic properties of 2D magnets at the atomic scale. Although local electronic properties can be probed by scanning tunneling microscopy/spectroscopy (STM/STS), its application to investigate 2D magnetic insulators remains elusive due to absence of a conducting path and their extreme air sensitivity. Here we demonstrate that few-layer CrI3 (FL-CrI3) covered by graphene can be characterized electronically and magnetically via STM by exploiting the transparency of graphene to tunneling electrons. STS reveals electronic structures of FL-CrI3 including flat bands responsible for its magnetic state. AFM-to-FM transition of FL-CrI3 can be visualized through the magnetic field dependent moiré contrast in the dI/dV maps due to a change of the electronic hybridization between graphene and spin-polarised CrI3 bands with different interlayer magnetic coupling. Our findings provide a general route to probe atomic-scale electronic and magnetic properties of 2D magnetic insulators for future spintronics and quantum technology applications.

Magnetic properties of manganese ferrite films grown at atomic scale

2005 ◽  
Vol 97 (10) ◽  
pp. 10G103 ◽  
Author(s):  
Xu Zuo ◽  
Aria Yang ◽  
Soack-Dae Yoon ◽  
Joe A. Christodoulides ◽  
Vincent G. Harris ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Atomic Scale ◽  
Manganese Ferrite ◽  
Ferrite Films

Magnetic properties of Exchange-spring DyFe2/YFe2 Superlattices by Monte Carlo Simulations

2012 ◽  
Vol 1471 ◽  
Author(s):  
Pierre-Emmanuel Berche ◽  
Saoussen Djedai ◽  
Etienne Talbot
Keyword(s):  
Monte Carlo ◽  
Magnetic Properties ◽  
Monte Carlo Simulations ◽  
Field Dependence ◽  
Hysteresis Loops ◽  
Atomic Scale ◽  
Exchange Spring ◽  
Scale Modelling ◽  
Different Temperatures

ABSTRACTMonte Carlo simulations are used to perform an atomic scale modelling of the magnetic properties of epitaxial exchange-coupled DyFe2/YFe2 superlattices. These samples, extremely well-researched experimentally, are constituted by a hard ferrimagnet DyFe2 and a soft ferrimagnet YFe2 antiferromagnetically coupled. Depending on the layers and on the temperature, the field dependence of the magnetization depth profile is complex. In this work, we reproduce by Monte Carlo simulations hysteresis loops for the net and compound-specific magnetizations at different temperatures, and assess the quality of the results by a direct comparison to experimental hysteresis loops.

scholarly journals Controlling the Magnetic Properties of LaMnO 3 /SrTiO 3 Heterostructures by Stoichiometry and Electronic Reconstruction: Atomic‐Scale Evidence

2019 ◽  
Vol 31 (27) ◽  
pp. 1901386 ◽  
Author(s):  
Mengsha Li ◽  
Chunhua Tang ◽  
Tula R. Paudel ◽  
Dongsheng Song ◽  
Weiming Lü ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Atomic Scale

Magnetic and Magneto-Optical Properties of Sputter-Deposited and Annealed Co-Pt Alloys

1994 ◽  
Vol 343 ◽  
Author(s):  
Sung-Eon Park ◽  
Pu-Young Jung ◽  
Ki-Bum Kim ◽  
Seh-Kwang Lee ◽  
Soon-Gwang Kim
Keyword(s):  
Magnetic Properties ◽  
Perpendicular Magnetic Anisotropy ◽  
Xrd Analysis ◽  
Atomic Scale ◽  
Alloy Films ◽  
X Ray ◽  
Transmission Electron ◽  
Ordered Phases ◽  
Pt Alloy ◽  
Sputter Deposited

ABSTRACTWe have produced Co1-xPtX (X = 0.53 and 0.75) alloy films using DC magnetron sputtering and investigated their magnetic properties using vibrating sample magnetometry(VSM) and Kerr hysteresis loop tracer. The as-deposited Co-Pt alloy films show a strong in-plane magnetization. By annealing the alloy samples, we have identified that the magnetic properties are drastically changed. While the magnetic properties of the Co0 25Pt0 75 alloy films show no noticeable changes, the coercivity and the squareness of the Co0.47Pt0.53 alloy films are drastically increased after annealing. Transmission electron microscopy(TEM) and x-ray diffractometry(XRD) analysis showed that CoPt(L10) and Co-Pt3 (L12) ordered phases, respectively, are formed in each case with a strong (11) texture. We suggest that the perpendicular magnetic anisotropy in the Co-Pt system does not depend on the mere textureness of the layer but strongly depends on the arrangement of Co and Pt at an atomic scale.

An atomic scale study of defects in Co2FeAl

2020 ◽  
Vol 22 (46) ◽  
pp. 26876-26886
Author(s):  
Ravi Kumar Yadav ◽  
R. Govindaraj
Keyword(s):  
Magnetic Properties ◽  
Mössbauer Spectroscopy ◽  
Local Structure ◽  
Mossbauer Spectroscopy ◽  
Atomic Scale ◽  
Mößbauer Spectroscopy ◽  
Different Types ◽  
Fe Sites

Changes in the local structure and magnetic properties at Fe sites associated with different types of defects were addressed in a detailed manner in Co2FeAl by 57Fe Mössbauer spectroscopy.

Atomic scale investigations of the Co/Pt(111) interface structure and magnetic properties

2001 ◽  
Vol 79 (4) ◽  
pp. 503-505 ◽  
Author(s):  
D. W. Moon ◽  
Y. H. Ha ◽  
Y. Park ◽  
J.-W. Lee ◽  
J. Kim ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Interface Structure ◽  
Atomic Scale

Atomic-scale investigation and magnetic properties of Cu80Co20 nanowires

2011 ◽  
Vol 110 (6) ◽  
pp. 063921 ◽  
Author(s):  
A. Hannour ◽  
R. Lardé ◽  
M. Jean ◽  
J. Bran ◽  
P. Pareige ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Atomic Scale
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