Linear forms in the logarithms of algebraic numbers I - IV Mathematika 13
Linear forms in the logarithms of algebraic numbers I - IV Mathematika 13
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代数数对数的线性形式 I - IV Mathematika 13
DOI:
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发表时间:
1967
期刊:
影响因子:
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通讯作者:
A. Baker
中科院分区:
文献类型:
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作者:
A. Baker
A magnetic domain storage device comprising a ferromagnetic, polycrystalline metal layer which is applied to a support and comprises areas of different coercivity, the areas of lower coercivity in the form of strip-shaped channels being surrounded by areas of higher coercivity; a system of electrical conductors, extending in planes arranged parallel and in close vicinity to the ferromagnetic layer for creating, propagating and detecting magnetic domains in the channels of lower coercivity; and a baseplate with electrical connections. The areas of lower coercivity follow a path similar to a spiral with its one end adjacent to the center of the support and the other end adjacent to a corner of the support and executing at least one full 360 DEG turn between both ends. The domain storage devices of this type are distinguished by a higher storage capacity.