Home > Publications database > Topologically stable helices in exchange coupled rare-earth/rare-earth multilayer with superspin-glass like ordering > print |
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100 | 1 | _ | |a Ye, Jingfan |0 P:(DE-HGF)0 |b 0 |
245 | _ | _ | |a Topologically stable helices in exchange coupled rare-earth/rare-earth multilayer with superspin-glass like ordering |
260 | _ | _ | |a London |c 2019 |b Springer Nature |
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520 | _ | _ | |a Existence of 2π-planar domain walls (DWs) are often reported for transition metal-rare-earth(TM/RE) layered systems. The magnetization process of such two-dimensional randomlyanisotropical system in the form of 2π-DWs is directly correlated with topologically stablehelices. Here, instead of TM/RE, we have investigated [Dy/Tb]10multilayers involving twodifferent anisotropic layers of rare-earth/rare-earth (RE/RE). Using magnetization and sus-ceptibility as function of temperature along with thermo-remanent magnetization measure-ments we have confirmed superspin-glass type of behavior within this RE/RE system.Additionally, an exchange biasfield up to–0.88 kOe (–88 mT) was also revealed for suchrare-earth based multilayers. Interestingly, using detailed analysis of the polarized neutronreflectometry profiles, wefind evidences of superimposed helical magnetic configurationswithin both materials of Dy and Tb associated with spin-frustrated interfaces. Furthermore,magnetizationfluctuations around the mean magnetization from vertically uncorrelateddomains were observed with polarized off-specular neutron scattering. We believe that coexistence of helical ground states with super spin-glass-like ordering are fundamentally instrumental for topologically stability in RE/RE systems, which in principle, can be exploited in all-spin-based technology. |
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700 | 1 | _ | |a Paul, Amitesh |0 0000-0002-6202-5081 |b 4 |e Corresponding author |
773 | _ | _ | |a 10.1038/s42005-019-0210-0 |g Vol. 2, no. 1, p. 114 |0 PERI:(DE-600)2921913-9 |n 1 |p 114 |t Communications Physics |v 2 |y 2019 |x 2399-3650 |
856 | 4 | _ | |y OpenAccess |u https://juser.fz-juelich.de/record/865324/files/s42005-019-0210-0.pdf |
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