2013
DOI: 10.1063/1.4833558
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The effects of Cu doping on crystalline structure and magnetic properties of SmCo5-xCux thin films grown on Ru (0002)

Abstract: Structure and magnetic properties of bulk anisotropic SmCo5/α-Fe nanocomposite permanent magnets with different α-Fe content J. Appl. Phys. 109, 07A741 (2011); 10.1063/1.3564967 Epitaxial growth of highly coercive Sm-Co thin films using pulsed laser deposition J. Appl. Phys. 97, 093902 (2005); 10.1063/1.1879073 Structure and magnetic properties of SmCo thin films on Cr/Ag/Si templates J. Appl. Phys. 85, 5759 (1999); 10.1063/1.370117Magnetic and structural properties of high coercivity Sm(Co, Ni, Cu) sputtered … Show more

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Cited by 8 publications
(3 citation statements)
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“…An obstacle is the very limited equilibrium solubility of Fe in the SmCo 5 phase, which is metastable even without Fe addition. Other additives, such as Ti, Cu, Zr, Nb, and Ni, which were also considered from a very early stage [5,16,17,[18][19][20][21][22][23][24][25][26], often improve coercivity but tend to further reduce the magnetization and can therefore only be used in small amounts. A breakthrough occurred with the recognition that Co doping with Cu enhances the solubility of Fe and eventually leads to the formation of a high-magnetization Sm 2 (Co 1−x Fe x ) 17 phase surrounded by Sm(Co, Cu) 5 grain boundaries [3,16,27,28].…”
Section: Introductionmentioning
confidence: 99%
“…An obstacle is the very limited equilibrium solubility of Fe in the SmCo 5 phase, which is metastable even without Fe addition. Other additives, such as Ti, Cu, Zr, Nb, and Ni, which were also considered from a very early stage [5,16,17,[18][19][20][21][22][23][24][25][26], often improve coercivity but tend to further reduce the magnetization and can therefore only be used in small amounts. A breakthrough occurred with the recognition that Co doping with Cu enhances the solubility of Fe and eventually leads to the formation of a high-magnetization Sm 2 (Co 1−x Fe x ) 17 phase surrounded by Sm(Co, Cu) 5 grain boundaries [3,16,27,28].…”
Section: Introductionmentioning
confidence: 99%
“…Cu is usually used as a dopant in SmCo 5 thin films grown onto Cr or Ru buffer layers. , As mentioned above, in this work, no additional underlayers have been used, and the SmCo 5– x Cu x films were deposited directly on top of Al 2 O 3 substrates. The hysteresis loops of the out-of-plane direction are shown in Figure .…”
Section: Results and Discussionmentioning
confidence: 99%
“…In order to stable the SmCo 7 into TbCu 7 structure, another element such as Zr, Hf, Nb, Ti, Ga, etc. are introduced into the matrix to increase its intrinsic magnetic properties [30,31]. Various element such as Zr are also included for the enhancement of the anisotropy field and the coercivity of SmCo 7 powders [17].…”
Section: Properties Of Rare Earth Magnetsmentioning
confidence: 99%