Journal ArticleDOI
Magnetostriction Constants of Rare Earth Iron Garnets
TLDR
Magnetostriction constants, λ 111 and λ 100, were measured for rare earth iron garnet single crystals M 3 Fe 5 O 12 (M=Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Y) at 78°K, 196°K and room temperature.Abstract:
Magnetostriction constants, λ 111 and λ 100 , were measured for rare earth iron garnet single crystals M 3 Fe 5 O 12 (M=Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Y) at 78°K, 196°K and room temperature. They are classified into two groups: A (Y, Gd, Eu), B (Sm, Tb, Dy, Ho, Er, Tm, Yb). Group A has smaller magnetostriction constants than other groups and has a tendency to almost saturate at 78°K. Absolute values of the magnetostriction constants for group B increase steeply when temperature is lowered. An exceptionally large λ 111 (+560×10 -6 at 78°K) and considerably small λ 100 is observed for TbIG. For group B and for EuIG the absolute magnitudes of the striction constants are in parallel with the contribution of the rare earth ions to the total magnetization, and the classical model of the presence of induced strain from the deformed electron orbits of 4f electrons seems plousible. For GdIG a new explanation is given which neglects entirely the contribution from the S state 4f orbits.read more
Citations
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Journal ArticleDOI
The growth of magnetic garnets by liquid phase epitaxy
S.L. Blank,J.W. Nielsen +1 more
TL;DR: In this article, phase relationships in the PbO-B 2 O 3 -garnet systems and their relationship to high quality -low defect epitaxial films are discussed and the effects of growth temperature, lattice mismatch and growth rate on the magnetic properties of multiple-doped rare earth iron garnets are shown.
Journal ArticleDOI
Above 400-K robust perpendicular ferromagnetic phase in a topological insulator
Chi Tang,Cui-Zu Chang,Cui-Zu Chang,Gejian Zhao,Yawen Liu,Zilong Jiang,Chao-Xing Liu,Martha R. McCartney,David J. Smith,Tingyong Chen,Jagadeesh S. Moodera,Jing Shi +11 more
TL;DR: In this paper, the authors demonstrate drastically enhanced Tc by exchange coupling TIs to Tm3Fe5O12, a high-Tc magnetic insulator with perpendicular magnetic anisotropy.
Journal ArticleDOI
Uniaxial magnetic garnets for domain wall ``bubble'' devices
Andrew Henry Bobeck,E. G. Spencer,L. G. Van Uitert,S. C. Abrahams,R.L. Barns,William H. Grodkiewicz,Richard Curry Sherwood,P. H. Schmidt,D.H. Smith,E. M. Walters +9 more
TL;DR: A number of nonmagnetostrictive flux-grown garnets have been developed for use in cylindrical magnetic domain ''bubble'' devices as discussed by the authors, and it has been discovered that the material directly beneath the natural {211} facets is magnetically uniaxial.
Journal ArticleDOI
A stress model for heteroepitaxial magnetic oxide films grown by chemical vapor deposition
TL;DR: In this paper, a simple physical model is presented which predicts the sign and magnitude of stress in heteroepitaxial films, and the conditions under which films can be grown in compression, has been verified experimentally for CVD iron garnets.
Journal ArticleDOI
Anisotropy and magnetostriction of germanium‐substituted yttrium iron garnet
TL;DR: In this paper, the anisotropy, magnetostriction, and linewidth of germanium-substituted yttrium iron garnet single crystals of the composition {Y3−xMexII} [Fe2](Fe3−y−zMeyIVFezII) O12−δFδ(MeII=Ca2+,Pb2+,and MeIV=Ge4+,Si4+) have been studied by means of ferromagnetic resonance.
References
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Journal ArticleDOI
Anisotropy and Magnetostriction in Magnetic Oxides
TL;DR: In this paper, the effects of Fe2+ ion on spinel ferrites were investigated and new work on the effect of Fe 2+ on the spin-orbit coupling was presented.
Journal ArticleDOI
Magnetic Study of the Heavier Rare-Earth Iron Garnets
TL;DR: In this paper, Pauthenet et al. made measurements on ultrapure crystals of the heavier rare-earth (Gd to Yb) iron garnets, allowed to rotate freely in the magnetic field.
Book ChapterDOI
Magnetocrystalline Anisotropy of Rare‐Earth Iron Garnets
TL;DR: In this paper, the effect of the combined crystal and exchange fields of the rare-earth iron garnet on the energy levels of individual magnetic ions, and the extent to which this model can describe the anisotropy of rare earth iron garnets is discussed.
Journal ArticleDOI
Magnetic study of the lighter rare-earth ions in the iron garnets
TL;DR: The magnetic behavior of the trivalent ions of La, Pr, Sm, and Eu in the iron garnets in the range 0 to 298\ifmmode^\circ\else\text degree\fi{}K has been determined, that of the ${\mathrm{Nd}}^{3+}$ ion having been reported earlier.
Journal ArticleDOI
Magnetism of Europium Garnet
W. P. Wolf,J. H. Van Vleck +1 more
TL;DR: In this paper, the theoretical expressions for the magnetic moment of a trivalent europium ion in a molecular field arising from exchange were applied to Pauthenet's measurements on euro pium iron garnet.