Abstract:
A cipher machine (10) includes a housing (11) and a key data storage (12) provided in the housing (11). The key data storage (12) comprises a plurality of magnetic elements consisting of a low-coercivity magnetic material capable of producing domains magnetized in one direction and reverse domains magnetized in the opposite direction, and magnetoelectric devices for detecting the direction of magnetic domains of magnetic elements. The key data storage stores information "0" or "1" depending on the presence of a reverse domain. The housing (11) comprises magnets (15, 16) for providing the magnetic elements with magnetic fields to maintain their domain structures, and a yoke (17) that encloses the magnetic elements. The magnetic elements are arranged in a magnetic area (18) within the housing (11) composed of the magnets (15, 16) and the yoke (17).
Abstract:
The invention relates to digital memorizing devices using magnetic memory elements. A memory on cylindrical magnetic domains comprising a single-axis magnetic layer (1) and, mounted on its surface, an input-output channel (5), information storage registers (2), a device (36) for generating cylindrical magnetic domains and a device (37) for reading-out the cylindrical magnetic domains. The channel (5) consists of meander-shaped conductors (25, 26) located above each other. Above the channel (5) is located an additional conductor (38), identical to the conductor (26), in which the space (42), limited by the sides of the neighbouring loops (39, 40) of the meander and facing the registers (2), is fully filled with an electric conductive material. The information storage registers (2) are magnetically connected to the channel (5) and consist of electric conductive layers (6, 7, 8) with periodically alternating openings (9, 12; 10, 13; 11, 14).
Abstract:
The present invention is in the field of a magneto optical device comprising a magnetic unit and an optical unit, an electronic device comprising the magneto-optic device, a method of energy saving using the magneto- optical device, an array comprising the magneto-optical devices, and a method of changing magnetic orientation.
Abstract:
A data storage device including a substrate, a data storage layer on the substrate, and a spin-polarized electron source. The data storage layer comprises a fixed number of atomic layers of a magnetic material which provide the data storage layer with a magnetic anisotropy perpendicular to a surface of the data storage layer. A data magnetic field is created in the data storage layer. The data magnetic field is polarized either in a first direction corresponding to a first data value or in a second direction corresponding to a second data value. Data is stored in the data storage layer by providing a spin-polarized electron having an electron magnetic field with a direction of polarization corresponding to one of the first and the second data values, the electron having a wavelength "characteristic" of unpaired electrons in the data storage layer which cause the magnetic moment of the material, and directing the spin-polarized electron at the data magnetic field to impart the direction of polarization of the electron magnetic field to the data magnetic field. Data is read from the data storage layer by directing the spin-polarized electron at a second wavelength at the data magnetic field and detecting a deflection or attraction of the spin-polarized electron by the data magnetic field. Alternatively, data is read from the data storage layer by directing the spin-polarized electron at the data magnetic field so that the magnetic medium produces a secondary electron and then detecting certain characteristics of the secondary electron.
Abstract:
A data storage medium comprising a substrate and a data storage layer formed on the substrate. The data storage layer comprises a fixed number of atomic layers of a magnetic material which provide the data storage layer with a magnetic anisotropy perpendicular to a surface of the data storage layer. A data magnetic field is created in the data storage layer. The data magnetic field is polarized either in a first direction corresponding to a first data value or in a second direction corresponding to a second data value. Data is stored in the data storage layer by providing a spin-polarized electron having an electron magnetic field with a direction of polarization corresponding to one of the first and the second data values, and directing the spin-polarized electron at the data magnetic field to impart the direction of polarization of the electron magnetic field to the data magnetic field. Data is read from the data storage layer by directing the spin-polarized electron at the data magnetic field and detecting a deflection or attraction of the spin-polarized electron by the data magnetic field. Alternatively, data is read from the data storage layer by directing the spin-polarized electron at the data magnetic field so that the magnetic medium produces a secondary electron and then detecting certain characteristics of the secondary electron.
Abstract:
자기 메모리 소자는, 고정 자성층, 절연층 및 자유 자성층이 각각 순차적으로 적층된 터널 접합 단위셀들, 상기 단위셀들에 면내 전류를 공급하며, 상기 자유 자성층에 인접하게 배치된 반강자성(antiferromagnetic)층 및 상기 반강자성층에 인접하게 배치되며 면내 자기이방성을 갖는 강자성층을 갖는 도선체 및 상기 터널 접합 단위셀들 각각에 독립적으로 선택 전압을 인가하는 전압 인가부를 포함하고, 상기 면내 전류 및 상기 선택 전압에 의해서 터널 접합 단위셀들 각각의 자화 방향을 선택적으로 변화시킬 수 있다.
Abstract:
Medio de almacenamiento magnético de alta densidad que está provisto de partículas ferromagnéticas de baja simetría, en donde estas partículas están formadas por segmentos o barras, o sistemas de barras y combinaciones de estas que forman estructuras de diferentes geometrías.
Abstract:
The present invention is in the field of a magneto optical device comprising a magnetic unit and an optical unit, an electronic device comprising the magneto-optic device, a method of energy saving using the magneto- optical device, an array comprising the magneto-optical devices, and a method of changing magnetic orientation.