Magnetic properties of Dy-Y superlattice structures

Sinha, Shantanu; Cunningham, J. E.; Du, R.; Salamon, M. B.; Flynn, C. P.

doi:10.1016/0304-8853(86)90246-5

Cited by 13 publications

(5 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To confirm this two Type (C) samples were post-annealed for 2 hours at 400°C (pressure ~ 10 -6 mbar) in a magnetic field of µ 0 H = 2T applied in-plane which indeed lead to increased transition temperatures of T C = (83±2)K and T N = (174±2)K. Corresponding FC branches of Type (B) & (C) layers show a bifurcation at T N and an even smoother AFM-FM transition, where magnetization values are lower than those of the ZFC branch. This somewhat surprising behavior was also observed for Dy-Y superlattices 37 and might be due to thermal hysteresis arising from coexisting helimagnetic states of opposite chirality 50 . , the magnetization signal of Type (R) becomes disproportionally large in Type (A) layers, particularly for low-field measurements.…”

mentioning

confidence: 57%

Improved magnetization in sputtered dysprosium thin films

Scheunert¹,

Hendren²,

Łapicki³

et al. 2013

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

mentioning

confidence: 57%

Improved magnetization in sputtered dysprosium thin films

Scheunert¹,

Hendren²,

Łapicki³

et al. 2013

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

“…When the applied field is 50 kOe, the ZFC and FC magnetization curves coincide; namely, there is no significant difference due to the different cooling conditions. These phenomena have been reported in many systems including Dy/Y, 11) Dy/Lu, 6,12) and Dy/Sc. 13) The details will be discussed in Discussion.…”

Section: Magnetizationmentioning

confidence: 67%

“…There are many articles 6,[11][12][13] reporting that the M-T curve differs owing to the different cooling conditions. We discuss the following possible cause of the peak existence in the ZFC magnetization curve: (i) a spin-glass-type magnetic structure, (ii) a superparamagnetic structure and (iii) the pinning of magnetic domain walls and the temperature dependence of magnetocrystalline anisotropy.…”

Section: Shape Of Zfc Magnetization Curvementioning

confidence: 99%

“…In the present multilayers, the thickness of Dy layers is 2.5 nm or less, which is almost the same as that for one turn of the helix or smaller than it, suggesting that the helix structure in each Dy layer is incomplete. In the Dy/Y multilayer system, 11) the cusplike change appears even at a small Dy thickness such as that of a [Dy (4 nm)/Y (4 nm)] 20 multilayer. This phenomenon arises from the existence of the long-period helix structure in Dy layers through Y layers, which was confirmed by neutron diffraction.…”

Section: Magnetic Structure In Dy Layersmentioning

confidence: 99%

See 1 more Smart Citation

Structural and Magnetic Properties of Dy/Cr Multilayers and Bilayers Grown by Molecular-Beam Deposition

Kamada

Tanino

Kingetsu

et al. 2007

jjap

View full text Add to dashboard Cite

We studied the structural, magnetic and magnetotransport properties of the Dy/Cr multilayers and bilayers grown by molecular-beam deposition. Structures were analyzed by reflection high-energy electron diffraction and X-ray diffraction. The field and temperature dependences of magnetization and magnetoresistance were measured. We found that the Dy and Cr layers in the first bilayers take particular orientational relationships. However, in the subsequent bilayers, thin Cr layers are amorphous/fine crystalline whereas thick Cr layers are polycrystalline, and 2.5-nm-thick Dy layers are polycrystalline. The easy magnetization axis lies in the in-pane direction in most cases. Magnetization curves do not significantly depend on the Cr layer thickness of the multilayers, and there is no evidence of the interlayer exchange coupling of Dy through Cr layers. This may be ascribed to an amorphous Cr layer with a small thickness. Magnetization-temperature (M-T) curves differ depending on cooling conditions. Peaks appear in the M-T curves during the temperature-increase of demagnetized multilayers at a magnetic field. The causes for these phenomena were discussed.

show abstract

“…The coupling of magnetic layers across a normal metal has received attention for some time [10]. Recently, RKKY coupling in Gd/Y [11] and propagation of spiral magnetism in Dy/Y [12] superlattices have been claimed.…”

Section: C) Coupling and Superlattice Effectsmentioning

confidence: 99%

Magnetic Superlattices

Schuller

1987

MRS Proc.

View full text Add to dashboard Cite

Magnetic superlattices serve as model systems for the study of thin film, interfacial, proximity, coupling and superlattice phenomena. Due to these phenomena, the physical properties of magnetic superlattices can be tuned in a reproducible fashion by proper control of the preparation process.Magnetic measurements in conjunction with detailed structural characterization provide a fruitful area of research, especially in understanding basic phenomena in magnetism. We describe here briefly a few experimental examples from our work which illustrate the possibilities magnetic superlattices offer for the study of basic phenomena in magnetism.

show abstract

Magnetic properties of Dy-Y superlattice structures

Cited by 13 publications

References 1 publication

Improved magnetization in sputtered dysprosium thin films

Improved magnetization in sputtered dysprosium thin films

Structural and Magnetic Properties of Dy/Cr Multilayers and Bilayers Grown by Molecular-Beam Deposition

Magnetic Superlattices

Contact Info

Product

Resources

About