Reproducible growth and bubble properties of rare-earth-substituted YCaGeIG films
Conference
·
· AIP (Am. Inst. Phys.) Conf. Proc.; (United States)
OSTI ID:7361622
Thermally stable bubble garnets (YCaRE)/sub 3/(FeGe)/sub 5/O/sub 12/ (RE: rare-earth ion) were studied as materials for high density and high speed bubble devices. Rare-earth ions used were EuYb, EuTm, EuEr, Sm, SmLu and SmTm. These garnets were particularly useful for bubble materials with bubble diameters of 6 ..mu..m to less than 1 ..mu..m. For example, the temperature stabilities of submicron bubble garnet YCaSmLuGeIG were very good up to 140/sup 0/C, temperature coefficients of the stripe width and bubble collapse field being -0.01 percent//sup 0/C and -0.2 percent//sup 0/C, respectively. Typical values of 4 ..pi..Ms, uniaxial anisotropy field and wall mobility of this garnet were 518 Gauss, 1650 Oe and 600 cm/sec . Oe, respectively. For the higher reproducible growth the feedback control technique of the growth process was applied for YCaEuYbGeIG with 3 ..mu..m bubble diameters which was used for 10/sup 5/ bits/chip bubble devices. By this technique the epitaxial growth of the garnet was well controlled resulting in an extremely high yield of films: for example, more than 60 percent for bubble collapse field Ho = 140 +- 3 Oe.
- Research Organization:
- Fujitsu Labs., Ltd., Kawasaki, Japan
- OSTI ID:
- 7361622
- Conference Information:
- Journal Name: AIP (Am. Inst. Phys.) Conf. Proc.; (United States) Journal Volume: 29
- Country of Publication:
- United States
- Language:
- English
Similar Records
Growth reproducibility and temperature dependencies of the static properties of YSmLuCaFeGe garnet
(Lu,La,Y,Ca)/sub 3/(Ge,Fe)/sub 5/O/sub 12/: a temperature compensated high mobility bubble garnet
(EuTm)$sub 3$(FeGa)$sub 5$O$sub 12$ garnet films with one-micron diameter magnetic bubbles
Conference
·
Wed Dec 31 23:00:00 EST 1975
· AIP (Am. Inst. Phys.) Conf. Proc.; (United States)
·
OSTI ID:7125089
(Lu,La,Y,Ca)/sub 3/(Ge,Fe)/sub 5/O/sub 12/: a temperature compensated high mobility bubble garnet
Conference
·
Wed Dec 31 23:00:00 EST 1975
· AIP (Am. Inst. Phys.) Conf. Proc.; (United States)
·
OSTI ID:7125088
(EuTm)$sub 3$(FeGa)$sub 5$O$sub 12$ garnet films with one-micron diameter magnetic bubbles
Conference
·
Tue Dec 31 23:00:00 EST 1974
· AIP (Am. Inst. Phys.) Conf. Proc., no. 24, pp. 582-583
·
OSTI ID:4163120
Related Subjects
36 MATERIALS SCIENCE
360603* -- Materials-- Properties
ALKALINE EARTH METAL COMPOUNDS
BUBBLES
CALCIUM COMPOUNDS
DOMAIN STRUCTURE
ERBIUM COMPOUNDS
EUROPIUM COMPOUNDS
FERRITE GARNETS
FILMS
GERMANIUM COMPOUNDS
LUTETIUM COMPOUNDS
MAGNETIC PROPERTIES
MAGNETIZATION
MEMORY DEVICES
MINERALS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
SAMARIUM COMPOUNDS
TEMPERATURE DEPENDENCE
THULIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
YTTERBIUM COMPOUNDS
YTTRIUM COMPOUNDS
360603* -- Materials-- Properties
ALKALINE EARTH METAL COMPOUNDS
BUBBLES
CALCIUM COMPOUNDS
DOMAIN STRUCTURE
ERBIUM COMPOUNDS
EUROPIUM COMPOUNDS
FERRITE GARNETS
FILMS
GERMANIUM COMPOUNDS
LUTETIUM COMPOUNDS
MAGNETIC PROPERTIES
MAGNETIZATION
MEMORY DEVICES
MINERALS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
SAMARIUM COMPOUNDS
TEMPERATURE DEPENDENCE
THULIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
YTTERBIUM COMPOUNDS
YTTRIUM COMPOUNDS