Magnetic proximity effect in Nb/Gd superlattices seen by neutron reflectometry

Khaydukov Yu. N.; Kravtsov E. A.; Zhaketov V. D.; Progliado V. V.; Kim G.; Nikitenko Yu. V.; Keller T.; Ustinov V. V.; Aksenov V. L.; Keimer B.

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Magnetic proximity effect in Nb/Gd superlattices seen by neutron reflectometry

机译：中子反射测量中的NB / GD超晶格中的磁性接近效应

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We have used spin-polarized neutron reflectometry to investigate the magnetization profile of superlattices composed of ferromagnetic Gd and superconducting Nb layers. We have observed a partial suppression of ferromagnetic (F) order of Gd layers in [Gd(d(F))/Nb(25 nm)](12) superlattices below the superconducting (S) transition of the Nb layers. The amplitude of the suppression decreases with increasing d(F). By analyzing the neutron spin asymmetry we conclude that the observed effect has an electromagnetic origin-the proximity-coupled S layers screen out the external magnetic field and thus suppress the F response of the Gd layers inside the structure. Our investigation demonstrates the considerable influence of electromagnetic effects on the magnetic properties of S/F systems.

机译：我们使用了旋转偏振中子反射测量测量，以研究由铁磁GD和超导Nb层组成的超晶格的磁化分布。我们已经观察到在Nb层的超导（S）转变以下的[GD（D（F））/ Nb（25nm）]（12）超晶片中的GD层的末端磁磁（F）级的部分抑制。随着D（f）的增加，抑制的幅度降低。通过分析中子旋转不对称性，我们得出结论，观察到的效果具有电磁来源 - 邻近耦合的S层筛选出外部磁场，从而抑制了结构内GD层的F响应。我们的调查显示了电磁效应对S / F系统磁性的相当大的影响。

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《Physical review》 |2019年第14期|140503.1-140503.5|共5页
作者
Khaydukov Yu. N.; Kravtsov E. A.; Zhaketov V. D.; Progliado V. V.; Kim G.; Nikitenko Yu. V.; Keller T.; Ustinov V. V.; Aksenov V. L.; Keimer B.;
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Max Planck Inst Festkorperforsch Heisenbergstr 1 D-70569 Stuttgart Germany|Heinz Maier Leibnitz Zentrum MLZ Max Planck Soc Outstn D-85748 Garching Germany|Moscow MV Lomonosov State Univ Skobeltsyn Inst Nucl Phys Moscow 119991 Russia;

Inst Met Phys Ekaterinburg 620180 Russia|Ural Fed Univ Ekaterinburg 620002 Russia;

Joint Inst Nucl Res Dubna 141980 Russia;

Inst Met Phys Ekaterinburg 620180 Russia;

Max Planck Inst Festkorperforsch Heisenbergstr 1 D-70569 Stuttgart Germany;

Joint Inst Nucl Res Dubna 141980 Russia;

Max Planck Inst Festkorperforsch Heisenbergstr 1 D-70569 Stuttgart Germany|Heinz Maier Leibnitz Zentrum MLZ Max Planck Soc Outstn D-85748 Garching Germany;

Inst Met Phys Ekaterinburg 620180 Russia|Ural Fed Univ Ekaterinburg 620002 Russia;

Joint Inst Nucl Res Dubna 141980 Russia;

Max Planck Inst Festkorperforsch Heisenbergstr 1 D-70569 Stuttgart Germany;

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1. Magnetic proximity effect in Nb/Gd superlattices seen by neutron reflectometry [J] . Khaydukov Yu. N., Kravtsov E. A., Zhaketov V. D., Physical review . 2019,第14期

机译：中子反射法在Nb / Gd超晶格中的磁性接近效应
2. Magnetic proximity effect in Nb/Gd superlattices seen by neutron reflectometry [J] . Khaydukov Yu. N., Kravtsov E. A., Zhaketov V. D., Physical review, B . 2019,第14期

机译：中子反射测量中的NB / GD超晶格中的磁性接近效应
3. Application of polarized neutron reflectometry and X-ray resonant magnetic reflectometry for determining the inhomogeneous magnetic structure in Fe/Gd multilayers [J] . Kravtsov E.A., Haskel D., Te Velthuis S.G.E., Bulletin of the Russian Academy of Sciences. Physics . 2010,第10期

机译：极化中子反射法和X射线共振磁反射法在确定Fe / Gd多层膜中非均匀磁性结构中的应用
4. Neutron reflectometry studies of Gd/Nb and Cu_(30)Ni_(70)/Nb superlattices [C] . Y Khaydukov, E Kravtsov, R Morari, Euro-Asian Symposium "Trends in Magnetism" . 2020

机译：中子反射测量Gd / Nb和Cu_（30）Ni_（70）/ Nb超晶格研究
5. The synthesis and characterization of crystalline superlattices ((TiSe2)(l)(NbSe(2))(m))(n): A new thin-film growth technique using multilayer reactants. [D] . Noh, Myungkeun. 1997

机译：晶体超晶格（（TiSe2）（l）（NbSe（2））（m））（n）的合成和表征：一种使用多层反应物的新型薄膜生长技术。
6. Self-Assembly of Magnetic Nanoparticles in Ferrofluids on Different Templates Investigated by Neutron Reflectometry [O] . Katharina Theis-Bröhl, Apurve Saini, Max Wolff, 2020

机译：中子反射计研究不同模板上铁磁流体中磁性纳米粒子的自组装
7. Magnetic proximity effect in Nb/Gd superlattices seen by neutron reflectometry [O] . Yu. N. Khaydukov, E. A. Kravtsov, V. D. Zhaketov, 2019

机译：中子反射测量中的NB / GD超晶格中的磁性接近效应
8. Determination of Superlattice and Magnetic Structures in the System (Fe,MN)(Nb,Ta) sub 2 O sub 6 with Elastic Neutron Scattering Experiments [R] . Klein, S. 1976

机译：用弹性中子散射实验确定系统（Fe，mN）（Nb，Ta）sub 2 O sub 6中的超晶格和磁结构

Magnetic proximity effect in Nb/Gd superlattices seen by neutron reflectometry

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