Ferromagnetic resonance studies of Fe thin films with dilute heavy rare-earth impurities

2012 ◽  
Vol 111 (7) ◽  
pp. 07A328 ◽  
Author(s):  
Li Sun ◽  
Yukun Wang ◽  
Mao Yang ◽  
Zhaocong Huang ◽  
Ya Zhai ◽  
...  
Keyword(s):  
Thin Films ◽  
Rare Earth ◽  
Ferromagnetic Resonance ◽  
Heavy Rare Earth ◽  
Rare Earth Impurities

Effects of Addition of Heavy Rare-Earth Elements on the Structures and Resistivities of Al Thin Films for TFT - LCD Interconnects

1996 ◽  
Vol 441 ◽  
Author(s):  
Shinji Takayama ◽  
Naganori Tsutsui ◽  
Zheng Zhudan
Keyword(s):  
Thin Films ◽  
Solid Solution ◽  
Rare Earth ◽  
High Temperature ◽  
Supersaturated Solid Solution ◽  
Film Surface ◽  
Heavy Rare Earth ◽  
Heavy Rare Earth Elements ◽  
Metallic Compounds ◽  
Al Matrix

AbstractThe addition of Ho or Er to Al thin films markedly suppresses the grain growth at high temperature (350 °C – 450 °C). However, different from the effect of adding elements of Y, La, Pr, Nd, Sm, Gd, and Dy, thermal defects of hillocks or whiskers start to appear on the film surface after annealing at 300 °C ( though depending on the content of added elements). It has been revealed that small amounts of metallic compounds of Al3RE (RE = Ho and Er) have been segregated in a supersaturated solid solution of the Al phase after annealing at 300 °C, and that a large amount of added impurities still remained in the Al matrix. The resistivity of Al1−xREx alloy thin films (RE = Ho or Er, x = 2 – 7 atomic %) was 5 – 7 μΩcm after annealing at 450 °C.

Magnetic susceptibility of liquid heavy rare earth metals

1979 ◽  
Vol 40 (C5) ◽  
pp. C5-260-C5-261 ◽  
Author(s):  
M. Müller ◽  
E. Huber ◽  
H.-J. Güntherodt
Keyword(s):  
Magnetic Susceptibility ◽  
Rare Earth ◽  
Rare Earth Metals ◽  
Heavy Rare Earth

Preferential Orientation of Photochromic Gadolinium Oxyhydrides

2020 ◽  
Author(s):  
Elbruz Murat Baba ◽  
Jose Montero ◽  
Dmitrii Moldarev ◽  
Marcos V. Moro ◽  
Max Wolff ◽  
...  
Keyword(s):  
Thin Films ◽  
Grain Size ◽  
Rare Earth ◽  
Preferential Orientation ◽  
Reactive Magnetron ◽  
Flow Ratio ◽  
Deposition Pressure ◽  
Step Process ◽  
Oxidation In Air ◽  
Key Parameter

<p>We report preferential orientation control in photochromic gadolinium oxyhydride (GdHO) thin films deposited by a two-step process. Gadolinium hydride (GdH<sub>2-x</sub>) films were grown by reactive magnetron sputtering, followed by oxidation in air. The preferential orientation, grain size, anion concentrations, and photochromic response of the films are strongly dependent on the deposition pressure. GdHO films show preferential orientation along the [100] direction and exhibit photochromism when synthesized at deposition pressures up to 5.8 Pa and. The photochromic contrast is larger than 20 % when the films are deposited below 2.8 Pa with 0.22 H<sub>2</sub>/Ar flow ratio. We argue that the degree of preferential orientation defines the oxygen concentration which is known to be a key parameter for photochromism in rare-earth oxyhydride thin films. The experimental observations described above are explained by the oxidation-induced decrease of the grain size as a result of the increase of the deposition pressure of the sputtering gas. </p>

Interdiffusion Induced High Coercivity of Rare-Earth Free Alnico Thin Films

2019 ◽  
Author(s):  
Xiao Han ◽  
Hoyun Won ◽  
Minyeong Choi ◽  
Liping Guo ◽  
Zhongqi Liu ◽  
...  
Keyword(s):  
Thin Films ◽  
Rare Earth ◽  
High Coercivity
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