Combined effect of laser thermal shock and helium ion irradiation on W-Y2O3 composites

2019 ◽  
Vol 140 ◽  
pp. 102-106 ◽  
Author(s):  
Yu-Xiang Zhang ◽  
Xiao-Yue Tan ◽  
Lai-Ma Luo ◽  
Yue Xu ◽  
Xiang Zan ◽  
...  
Keyword(s):  
Thermal Shock ◽  
Ion Irradiation ◽  
Combined Effect ◽  
Helium Ion

Effect of laser beam thermal shock on the helium ion irradiation damage behavior of W-TiC-Y2O3 composites

2018 ◽  
Vol 509 ◽  
pp. 198-203 ◽  
Author(s):  
Meng–Yao Xu ◽  
Lai–Ma Luo ◽  
Yue Xu ◽  
Xiang Zan ◽  
Qiu Xu ◽  
...  
Keyword(s):  
Laser Beam ◽  
Thermal Shock ◽  
Ion Irradiation ◽  
Irradiation Damage ◽  
Damage Behavior ◽  
Helium Ion

Influence of helium ion irradiation damage behavior after laser thermal shock of W-2%vol Y2O3 composites

2020 ◽  
Vol 121 ◽  
pp. 103241 ◽  
Author(s):  
Gang Yao ◽  
Xiao-Yue Tan ◽  
Lai-Ma Luo ◽  
Xiang Zan ◽  
Yue Xu ◽  
...  
Keyword(s):  
Thermal Shock ◽  
Ion Irradiation ◽  
Irradiation Damage ◽  
Damage Behavior ◽  
Helium Ion

Transient thermal shock and helium ion irradiation damage behaviors of ODS-W/CuCrZr joints

2021 ◽  
pp. 111710
Author(s):  
Yuanyuan Chen ◽  
Haixue Hou ◽  
Gang Yao ◽  
Dongguang Liu ◽  
Laima Luo ◽  
...  
Keyword(s):  
Thermal Shock ◽  
Ion Irradiation ◽  
Irradiation Damage ◽  
Helium Ion ◽  
Transient Thermal

Magnetization dynamics of irradiation-fabricated perpendicularly magnetized dots inside a softer magnetic matrix

2003 ◽  
Vol 777 ◽  
Author(s):  
T. Devolder ◽  
M. Belmeguenai ◽  
C. Chappert ◽  
H. Bernas ◽  
Y. Suzuki
Keyword(s):  
Domain Wall ◽  
Magnetic Anisotropy ◽  
Magnetization Reversal ◽  
Ion Irradiation ◽  
Magnetic Nanostructures ◽  
Magnetic Storage ◽  
Exchange Field ◽  
Static Magnetization ◽  
Specific Domain ◽  
Helium Ion

AbstractGlobal Helium ion irradiation can tune the magnetic properties of thin films, notably their magneto-crystalline anisotropy. Helium ion irradiation through nanofabricated masks can been used to produce sub-micron planar magnetic nanostructures of various types. Among these, perpendicularly magnetized dots in a matrix of weaker magnetic anisotropy are of special interest because their quasi-static magnetization reversal is nucleation-free and proceeds by a very specific domain wall injection from the magnetically “soft” matrix, which acts as a domain wall reservoir for the “hard” dot. This guarantees a remarkably weak coercivity dispersion. This new type of irradiation-fabricated magnetic device can also be designed to achieve high magnetic switching speeds, typically below 100 ps at a moderate applied field cost. The speed is obtained through the use of a very high effective magnetic field, and high resulting precession frequencies. During magnetization reversal, the effective field incorporates a significant exchange field, storing energy in the form of a domain wall surrounding a high magnetic anisotropy nanostructure's region of interest. The exchange field accelerates the reversal and lowers the cost in reversal field. Promising applications to magnetic storage are anticipated.

The influence of helium ion irradiation on amorphous hydrocarbon films

2013 ◽  
Vol 435 (1-3) ◽  
pp. 214-221 ◽  
Author(s):  
Hongyu Fan ◽  
Li Sun ◽  
Deming Yang ◽  
Jinhai Niu ◽  
Liping Guo ◽  
...  
Keyword(s):  
Ion Irradiation ◽  
Hydrocarbon Films ◽  
Helium Ion
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