Experimental investigation of the phase equilibria in the Tb-Co and Tb-Co-Fe systems and magnetic properties of phases

Bajenova, I.; Shakirova, J.; Khvan, A.; Чеверикин, В. В.; Zanaeva, E.N.

doi:10.1016/j.mtcomm.2022.103960

Cited by 4 publications

(4 citation statements)

References 44 publications

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“…However, there is a solid solution phase near the composition of the TFC film selected in this experiment. The driving force for atom diffusion is small in this composition, thus the composition is relatively homogenous than other TFC with different compositions [32,33]. Although this amorphous sample is in a non-equilibrium state, the situation is the same.…”

Section: Discussionmentioning

confidence: 86%

“…According to the phase diagram of the Tb-Fe-Co system, Tb 20 Fe 24 Co 56 has few crystalline phases with different compositions in equilibrium due to invariant reactions [32]. However, there is a solid solution phase near the composition of the TFC film selected in this experiment.…”

Section: Discussionmentioning

confidence: 99%

“…It has been reported that TbFeCo films with 20 at% Tb [19] have smaller Joule magnetostriction than TbFeCo films with higher Tb compositions [20][21][22][23][24][25]. The Tb-Fe-Co system shows a eutectic reaction [32], which forms TbFe and TbCo phases in equilibrium. However, near the compositions of Tb 20 Fe 24 Co 56 , a solid solution phase exists, which means that the composition distribution of elements of Tb 20 Fe 24 Co 56 becomes more homogeneous than other compositions in the Tb-Fe-Co system.…”

Section: Introductionmentioning

confidence: 99%

“…The amorphous phase is not an equilibrium state, but for such a composition, the driving force of atom diffusion becomes small, resulting in homogenous composition. It can be one reason for the small Joule magnetostriction of the TbFeCo film with a composition near Tb 20 Fe 24 Co 56 [19,32,33].…”

Section: Introductionmentioning

confidence: 99%

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Magnetostriction and volume magnetostriction of sputtered Tb₂₀Fe₂₄Co₅₆ film

Huang,

Ono

2023

Mater. Res. Express

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In this work, amorphous Tb20Fe24Co56 (TFC) films are deposited on a polyimide plate by sputtering to investigate the magnetostriction and volume magnetostriction. Also, the effect of the working pressure of Ar gas on the residual internal stress of the TFC film is investigated. It indicates that the residual internal stress of the TFC film ranges from -300 to -121 MPa between 0.7 and 8 Pa of Ar gas pressure. A bilayer cantilever structure is used to evaluate the magnetostriction performance, which indicates that the largest magnetostriction coefficient and volume magnetostriction of the TFC films are 54 and 48 ppm at an external magnetic field of 7490 Oe, respectively. The value of the Joule magnetostriction of the TFC film is almost as same as the volume magnetostriction, which shows that the volume magnetostriction is the dominant mechanism of the magnetic field-induced strain. The homogeneous distribution of elements in the amorphous TFC films possibly makes the Joule magnetostriction small. In contrast with the Joule magnetostriction, the volume magnetostriction is independent of the motion of magnetic domains governed by the magneto-volume effect. Thus, the volume magnetostriction dominates the magnetostriction performance.

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Section: Discussionmentioning

confidence: 86%

Section: Discussionmentioning

confidence: 99%