Crystal structure and magnetic properties of Fe/Cr/Gd superlattices

Ryabukhina, M. V.; Кравцов, Е. А.; Наумова, Л. И.; Proglyado, V. V.; Khaidukov, Yu. N.; Ustinov, V. V.

doi:10.1134/s0031918x17020119

Cited by 5 publications

(3 citation statements)

References 21 publications

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“…Besides the (0002) hcp Gd reflection, the spectrum demonstrates additional peak corresponding to (111) fcc Gd reflection. This result is in accordance with previous work [25] where the same effect of Cr spacer was observed for Fe/Cr/Gd superlattices prepared on Si substrates. Thus, thin Cr spacer between Fe and Gd layers significantly modifies the structural properties of Gd.…”

Section: A X-ray Datasupporting

confidence: 93%

“…In previous work [25], we demonstrated that introduction of the Cr spacer between FM layers in the Fe/Gd superlattice initiates a structural modification of Gd layers. Formation of the fcc crystallographic phase within the Gd layers in addition to the hcp phase seems to be one of the factors leading to reduced Gd magnetization in the Fe/Cr/Gd structure.…”

Section: Introductionmentioning

confidence: 84%

“…An introduction of the Cr spacer between Fe and Gd seems to suppress the proximity effect initiating the observed increase of the Fe layer magnetization. Another effect of the Cr spacer consists in significant modification of the crystal structure in Gd layers [25]. The GIXRD spectra demonstrated the coexistence of fcc and hcp Gd crystal phases in the Fe/Cr/Gd multilayer while the Fe/Gd structure showed only the presence of hcp Gd phase.…”

Section: Discussionmentioning

confidence: 99%

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Effect of Cr Spacer on Structural and Magnetic Properties of Fe/Gd Multilayers

Дровосеков

Ryabukhina

Kholin

et al. 2018

J. Exp. Theor. Phys.

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In this work we analyse the role of a thin Cr spacer between Fe and Gd layers on structure and magnetic properties of a [Fe(35Å)/Cr(tCr)/Gd(50Å)/Cr(tCr)]12 superlattice. Samples without the Cr spacer (tCr = 0) and with a thin tCr = 4Å are investigated using X-ray diffraction, polarized neutron and resonance X-ray magnetic reflectometry, static magnetometery, magneto-optical Kerr effect and ferromagnetic resonance techniques. Magnetic properties are studied experimentally in a wide temperature range 4 − 300 K and analysed theoretically using numerical simulation on the basis of the mean-field model. We show that a reasonable agreement with the experimental data can be obtained considering temperature dependence of the effective field parameter in gadolinium layers. The analysis of the experimental data shows that besides a strong reduction of the antiferromagnetic coupling between Fe and Gd, the introduction of Cr spacers into Fe/Gd superlattice leads to modification of both structural and magnetic characteristics of the ferromagnetic layers.

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Section: A X-ray Datasupporting

confidence: 93%

Section: Introductionmentioning

confidence: 84%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of Cr Spacer on Structural and Magnetic Properties of Fe/Gd Multilayers

Дровосеков

Ryabukhina

Kholin

et al. 2018

J. Exp. Theor. Phys.

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Magnetic ordering in Fe/X/Gd (X=Cr, Pd) superlattices

Макарова

Antropov

Кравцов

et al. 2019

J. Phys.: Conf. Ser.

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We have studied the influence Cr and Pd spacers on structure and magnetic ordering in Fe/Gd superlattices. The insertion of Cr and Pd spacers in Fe/Gd has been found to cause structural changes in Gd layers. In particular, an additional fcc Gd phase appears in Fe/Cr/Gd along with the main hcp Gd phase, while there is amorphous Gd structure in Fe/Pd/Gd. By combining SQUID magnetometry and polarized neutron reflectometry we have shown that interlayer Fe-Gd exchange coupling through Pd spacers is much stronger than through Cr one.

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