scholarly journals Switching of Skyrmion chirality by local heating

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Yoshinobu Nakatani ◽  
Keisuke Yamada ◽  
Atsufumi Hirohata
Keyword(s):  
Thin Films ◽  
Building Block ◽  
Domain Walls ◽  
Local Heating ◽  
Magnetic Moments ◽  
Electrical Current ◽  
Magnetic Thin Films ◽  
Fundamental Building Block ◽  
Magnetic Skyrmions ◽  
Memory Applications

Abstract Magnetic Skyrmions are energetically stable entities formed in a ferromagnet with a diameter of typically below 100 nm and are easily displaceable using an electrical current of 102 A/cm2, resulting the Skyrmions to be more advantageous than domain walls for spintronic memory applications. Here, we demonstrated switching of a chirality of magnetic Skyrmions formed in magnetic thin films by introducing a pulsed heat spot using micromagnetic simulation. Skyrmions are found to expand with a pulsed heat spot, which induces the magnetic moments surrounding the Skyrmion to rotate by this expansion, followed by the chirality switching of the Skyrmion. Such simple controllability can be used as a fundamental building block for memory and logic devices using the chirality of Skyrmions as a data bit.

scholarly journals Magnetic induction and domain walls in magnetic thin films at remanence

2005 ◽  
Vol 17 (10) ◽  
pp. 1711-1718 ◽  
Author(s):  
Florin Radu ◽  
Vincent Leiner ◽  
Kurt Westerholt ◽  
Hartmut Zabel ◽  
Jeffery McCord ◽  
...  
Keyword(s):  
Thin Films ◽  
Magnetic Induction ◽  
Domain Walls ◽  
Magnetic Thin Films

scholarly journals 360∘ domain walls in magnetic thin films with uniaxial and random anisotropy

2018 ◽  
Vol 98 (13) ◽  
Author(s):  
N. Chowdhury ◽  
W. Kleemann ◽  
O. Petracic ◽  
F. Kronast ◽  
A. Doran ◽  
...  
Keyword(s):  
Thin Films ◽  
Domain Walls ◽  
Magnetic Thin Films ◽  
Random Anisotropy

Transmission Electron Microscopy studies of texture of Cr underlayer of magnetic recording hard disk

1991 ◽  
Vol 49 ◽  
pp. 580-581
Author(s):  
L. Tang ◽  
G. Thomas ◽  
M. R. Khan ◽  
S. L. Duan
Keyword(s):  
Electron Microscopy ◽  
Thin Films ◽  
Transmission Electron Microscopy ◽  
Magnetic Recording ◽  
Magnetic Thin Films ◽  
Magnetic Films ◽  
Substrate Bias ◽  
Epitaxial Relationship ◽  
Transmission Electron

Cr thin films are often used as underlayers for Co alloy magnetic thin films, such as Co1, CoNi2, and CoNiCr3, for high density longitudinal magnetic recording. It is belived that the role of the Cr underlayer is to control the growth and texture of the Co alloy magnetic thin films, and, then, to increase the in plane coercivity of the films. Although many epitaxial relationship between the Cr underlayer and the magnetic films, such as ﹛1010﹜Co/ {110﹜Cr4, ﹛2110﹜Co/ ﹛001﹜Cr5, ﹛0002﹜Co/﹛110﹜Cr6, have been suggested and appear to be related to the Cr thickness, the texture of the Cr underlayer itself is still not understood very well. In this study, the texture of a 2000 Å thick Cr underlayer on Nip/Al substrate for thin films of (Co75Ni25)1-xTix dc-sputtered with - 200 V substrate bias is investigated by electron microscopy.

Magnetic energy distribution in polycrystalline sputtered CoCr magnetic thin films

2008 ◽  
Vol 42 (2) ◽  
pp. 125-128
Author(s):  
J. F. Al-Sharab ◽  
J. E. Wittig ◽  
G. Bertero ◽  
T. Yamashita ◽  
J. Bentley ◽  
...  
Keyword(s):  
Thin Films ◽  
Energy Distribution ◽  
Magnetic Energy ◽  
Magnetic Thin Films

Immigration Dynamics and Changing Constructions of Jewish Nativeness in Israel

2019 ◽  
Author(s):  
Adane Zawdu ◽  
Sarah S. Willen
Keyword(s):  
Building Block ◽  
Social Boundaries ◽  
Institutional Practices ◽  
Political Dynamics ◽  
Fundamental Building Block ◽  
The People ◽  
Ancient Israel ◽  
State Of Israel ◽  
Historical Periods ◽  
Over Time

A fundamental building block of the Zionist vision is the claim of a primordial link between modern-day Jews and the people and territory of ancient Israel. This claim, which has proven remarkably durable despite its changing form and its tension with understandings of Palestinian indigeneity, continues to inform conceptions of nativeness in the modern-day state of Israel. This chapter explores how constructions of Jewish nativeness in Israel have changed in relation to successive immigration processes. Taking sociocultural and political dynamics as its focus, the chapter examines the cultural and institutional practices through which the notion of Jewish nativeness, its boundaries, and its logics of inclusion and exclusion were constructed and enforced in four historical periods. In each period, an increase in ethnic and religious heterogeneity challenged established notions of Jewish nativeness and membership in new ways. Although conceptions of Jewish nativeness have changed over time, they continue to shape social boundaries by signaling, and qualifying, membership in the Israeli collective.

Structure of magnetic thin films and nanostructures studied by extended X-ray absorption fine structure

2000 ◽  
Vol 454-456 ◽  
pp. 723-728 ◽  
Author(s):  
H. Magnan ◽  
P. Le Fèvre ◽  
A. Midoir ◽  
D. Chandesris ◽  
H. Jaffrès ◽  
...  
Keyword(s):  
Thin Films ◽  
Fine Structure ◽  
Magnetic Thin Films ◽  
X Ray ◽  
Absorption Fine ◽  
X Ray Absorption

Top-down Fabricated Gold Nanostrip on Silicon-on-insulator Wafer: A Promising Building Block towards Ultra-compact Optical Device

Nanoscale ◽  
2020 ◽  
Author(s):  
Fuping Zhang ◽  
Weikang Liu ◽  
Li Chen ◽  
Zhiqiang Guan ◽  
Hongxing Xu
Keyword(s):  
Optical Communication ◽  
Data Transmission ◽  
Building Block ◽  
High Speed ◽  
Large Data ◽  
Low Energy ◽  
Silicon On Insulator ◽  
Fundamental Building Block ◽  
Low Energy Consumption ◽  
Controllable Fabrication

he plasmonic waveguide is the fundamental building block for high speed, large data transmission capacity, low energy consumption optical communication and sensing. Controllable fabrication and simultaneously optimization of the propagation...

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