摘要:
A magnetic recording medium includes a substrate, a nonmagnetic seed layer provided on the substrate, and a magnetic layer provided on the nonmagnetic seed layer via one or a plurality of layers. The nonmagnetic seed layer is made of NiAl having an oxygen concentration of approximately 1500 to 4000 ppm.
摘要:
In a magnetic recording medium including an underlayer made of an anti-ferromagnetic material and a magnetic recording layer made of a material containing cobalt as the principal component that are serially disposed on a non-magnetic substrate, an intermediate layer made of a ferromagnetic material is sandwiched between the underlayer and the magnetic recording layer. A magnetic recording medium capable of providing an improved S/N ratio and high-density recording is provided. A production method for such a magnetic recording medium and a magnetic storage apparatus using the same are also provided.
摘要:
A magnetic recording medium is provided with at least one exchange layer structure, and a magnetic layer formed on the exchange layer structure. The exchange layer structure includes a ferromagnetic layer and a non-magnetic coupling layer provided on the ferromagnetic layer and under the magnetic layer.
摘要:
A magnetic recording medium and a magnetic disk device using the same. The magnetic recording medium comprising a nonmagnetic substrate having applied thereon, through two or more chromium-based underlayers, a magnetic recording layer having a circumferential direction of easy magnetization and containing cobalt as a principal component thereof, and also containing chromium and platinum in combination with tantalum or tantalum and niobium. Using the magnetic recording medium, a reproducing output and S/N ratio can be increased without causing an increase in noise.
摘要:
There is provided a magnetic storage medium capable of recording information at high recording density and also regenerating the information with a high quality of signal (high S/Nm), and in addition contributing to the elongation of a life span of the recorded information. The magnetic storage medium comprises a non-magnetic substrate, a plurality of magnetic recording layers of ferromagnetism formed on the non-magnetic substrate, and a dividing layer of antiferromagnetism for dividing said plurality of magnetic recording layers from one another through intervening between the magnetic recording layer-to-layer.
摘要:
A magnetic recording medium and a magnetic disk device using the same. The magnetic recording medium comprising a nonmagnetic substrate having applied thereon, through a chromium-based underlayer, at least one magnetic recording layer consisting of cobalt as a principal component, 14 to 23 at % of chromium, 1 to 20 at % of platinum as well as tungsten and carbon. The magnetic recording medium exhibits reduced noise, an improved resolution of the reproducing waveforms and an increased S/N ratio.
摘要:
A magnetic recording medium characterized by comprising: a nonmagnetic substrate; and, provided on the nonmagnetic substrate in the following order, a first underlayer of a nonmagnetic material composed mainly of chromium, a second underlayer of an antiferromagnetic material, with a body-centered cubic structure, having a Neel temperature of at least 60.degree. C., the second underlayer being such that, when the crystal lattice of the antiferromagnetic material is compared with the crystal lattice in the body-centered cubic structure of the first underlayer, the length of a side of the lattice in the (100) face of the former is approximately equal to the length of a diagonal of the lattice in the (100) face of the latter, permitting the second underlayer to be epitaxially grown onto the first underlayer, and a recording layer of a magnetic material composed mainly of cobalt.
摘要翻译:一种磁记录介质,其特征在于包括:非磁性基板; 在非磁性基板上按以下顺序设置主要由铬构成的非磁性材料的第一底层,具有体心立方结构的反铁磁材料的第二底层,具有N + E,acu e + EE el的温度为至少60℃,第二底层使得当反铁磁材料的晶格与第一底层的体心立方结构中的晶格相比较时, 前者的(100)面中的晶格近似等于后者的(100)面中的晶格的对角线的长度,允许第二底层外延生长到第一底层上,并且记录层 主要由钴组成的磁性材料。
摘要:
Fluorescence is generated from an irradiated point on an inspection surface of a sample and the fluorescence is collected by an objective lens. Here, because of the magnification chromatic aberration of the objective lens, the fluorescence going out from the objective lens travels along a path shifted from the irradiation light and changed substantially into a non-scan light by a galvano-scanner. The fluorescence passes through a dichroic mirror and comes into deflection system after light of unnecessary wavelength is removed by a filter. The deflection system is driven in synchronization with the galvano-scanner by a computer and corrects the shift and inclination of the optical axis generated by the magnification chromatic aberration of the objective lens. Then the fluorescence forms an image of the irradiation point of the inspection surface of the sample on a pin hole of a pin hole plate by using a collective lens.
摘要:
The present invention relates to a microscope of which visibility, controllability and operability can be improved.In the microscope, an optical path and optical path of an image forming system are set so as to be perpendicular to each other when viewed from the top. In other words, in this microscope, there exists an ocular optical system that guides light, which propagates the optical path to optical path of the image forming system, to a user. The optical path is formed in a direction perpendicular to a direction of the light from a sample emitted from the ocular optical system to the user. The present invention can be applied to an inverted microscope.
摘要:
Fluorescence is generated from an irradiated point on an inspection surface of a sample (7) and the fluorescence is collected by an objective lens (6). Here, because of the magnification chromatic aberration of the objective lens 86, the fluorescence going out from the objective lens (6) travels along a path shifted from the irradiation light and changed substantially into a non-scan light by a galvano-scanner (5). The fluorescence passes through a dichroic mirror (4) and comes into deflection means (9) as 2-dimensional deflection means after light of unnecessary wavelength is removed by a filter (8). The deflection means (9) is driven in synchronization with the galvano-scanner (5) by a computer (10) and corrects the shift and inclination of the optical axis generated by the magnification chromatic aberration of the objective lens (6). After the shift and inclination of the optical axis are corrected, the fluorescence forms an image of the irradiation point of the inspection surface of the sample (7) on a pin hole of a pin hole plate (12) by using a collective lens (11). Thus, it is possible to provide a laser scan confocal microscope capable of correcting the peripheral light reduced by the magnification chromatic aberration by using an optical system even if the used objective lens has the magnification chromatic aberration.