摘要:
A magnetoresistance effect element (100) includes a free layer (5), in which a magnetization direction thereof is easily rotated in response to an external magnetic field, a first non-magnetic layer (4), and a first pinned layer (3) provided on a side opposite to the free layer of the first non-magnetic layer (4), in which a magnetization direction of the first pinned layer (3) is not easily rotated in response to the external magnetic field. At least one of the first pinned layer (3) and the free layer (5) includes a first metal magnetic film (32) contacting the first non-magnetic layer (4), and a first oxide magnetic film (31).
摘要:
A magnetoresistance effect device of the present invention includes a multilayer film. The multilayer film includes an antiferromagnetic film, a first ferromagnetic film, a non-magnetic film and a second ferromagnetic film, which are provided in this order on a non-magnetic substrate directly or via an underlying layer. The antiferromagnetic film comprises an α-Fe 2 O 3 film. A surface roughness of the multilayer film is about 0.5 nm or less.
摘要:
A thin film magnetic head (100) according to the present invention comprises an upper shield section (3), a lower shield section (6) and a magnetoresistance device section (5). The magnetoresistance device section (5) is disposed in a shield gap (7) between the upper shield section (3) and the lower shield section (6). The magnetoresistance device section (5) is electrically connected to upper shield section (3) and the lower shield section (6) through conductive layers (10a,10b), and current flows through the magnetoresistance device section (5) via the upper shield section (3) and the lower shield section (6). The magnetoresistance device section comprises a multilayer structure exhibiting a giant magnetoresistance effect, the multilayer structure comprises a first magnetic film, a second magnetic film and a non-magnetic film formed between the first magnetic film and the second magnetic film, the non-magnetic film is formed of a tunnel GMR film.
摘要:
A magnetic recording medium which is improved in durability by having smooth runability and high wear resistance, is obtained by forming a metal oxide film including CoO and a lubricant film of alkyl silane compound on the thin metal film type magnetic recording medium of CoCr or the like. The metal oxide film is a thin film including metal oxide of mainly Co, and the alkyl silane compound is composed by a linear or branched alkyl chain and silyl group. So, there is such synergetiv effect of combination of improved wear resistance owing to the metal oxide film and improved frictional performance of the alkyl silane compound having large bonding strength with the metal oxide that the magnetic recording medium having improved durability is realized.
摘要:
A thin film magnetic recording medium comprising a nonmagnetic substrate (3), a first magnetic layer (4) which comprises cobalt and an axis of easy magnetization of which slants at an angle (φ₁) to a normal of a plane of magnetic recording medium and a second (5) magnetic layer which comprises cobalt and has a thickness of 0.02 to 0.1 µm and smaller than a thickness of said first magnetic layer and an axis of easy magnetization of which slants at an angle (φ₂) to a normal of a plane of magnetic recording medium, which has good high density recording characteristics and improved durability.
摘要:
The present invention provides aligned fine particles(30) that are aligned on a substrate(32). An organic coating film(31) is bonded to surfaces of the fine particles(30) is formed on the surfaces of the fine particles(30). An organic coating film(33) bonded to a surface of the substrate(32) is formed on the surface of the substrate(32). The organic coating film(31) on the surfaces of the fine particles(31) is bonded(34) to the organic coating film(33) on the surface of the substrate(32), whereby the fine particles(31) are immobilized and aligned on the substrate(32). Thus, it is possible to align the fine particles(31) of a nanometer scale in a specific direction. When fine magnetic particles are used, a magnetic recording medium for high recording density can be obtained, and a high-density magnetic recording/reproducing apparatus can be provided.
摘要:
A magnetoresistance effect device includes: a free layer (101) whose magnetization direction is easily rotated by an external magnetic field; a non-magnetization layer (103); and a pinned layer (102) whose magnetization direction is not easily rotated by an external magnetic field, the pinned layer being provided on a face of the non-magnetization layer (103) which is opposite to a face on which the free layer (101) is formed, wherein the pinned layer (102) includes: a first non-magnetic film (104) for exchange-coupling; and first and second magnetic films (105,106) which are antiferromagnetically exchange-coupled to each other via the first non-magnetic film (104), and the first non-magnetic film (104) includes one of the oxides of Ru, Ir, Rh, and Re.
摘要:
A magnetoresistance effect element (100) includes a free layer (5), in which a magnetization direction thereof is easily rotated in response to an external magnetic field, a first non-magnetic layer (4), and a first pinned layer (3) provided on a side opposite to the free layer of the first non-magnetic layer (4), in which a magnetization direction of the first pinned layer (3) is not easily rotated in response to the external magnetic field. At least one of the first pinned layer (3) and the free layer (5) includes a first metal magnetic film (32) contacting the first non-magnetic layer (4), and a first oxide magnetic film (31).