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Magnetic recording head and magnetic recording apparatus

A magnetic recording head, magnetic recording technology, applied in the direction of magnetic recording, configuration/installation of recording head, data recording, etc., can solve the problem of applying high-frequency magnetic field and so on

Inactive Publication Date: 2008-12-10
KK TOSHIBA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the method disclosed in this US Patent No. 6011664 specification, a high-frequency magnetic field is generated by a coil, and it is difficult to effectively apply a high-frequency magnetic field at the time of high-density recording.

Method used

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  • Magnetic recording head and magnetic recording apparatus
  • Magnetic recording head and magnetic recording apparatus
  • Magnetic recording head and magnetic recording apparatus

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Embodiment Construction

[0041] Hereinafter, various embodiments of the present invention will be described with reference to the drawings. In addition, in each figure, the same code|symbol is attached|subjected to the same component, and detailed description is abbreviate|omitted suitably.

[0042] The first embodiment of the magnetic recording head according to the present invention will be described here assuming the case of recording on a multi-particle perpendicular magnetic recording medium.

[0043] figure 1 It is a perspective view showing the schematic structure of the magnetic recording head concerning embodiment of this invention. also, figure 2 It is a perspective view showing the head slider on which the magnetic recording head is mounted. In addition, FIG. 3 is a schematic diagram illustrating the structure of a rotary oscillation element provided in the magnetic recording head.

[0044] The magnetic recording head 5 of this embodiment includes a reproducing head 70 and a writing he...

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Abstract

The invention relates to a proper magnetic recording head and magnetic recording device for realizing data storage of high recording density, high recording volume and high data transmission speed. The magnetic recording heat includes a recording magnetic pole, and a spin oscillation device including a first magnetic layer having at least one magnetic material layer, a second magnetic layer having at least one magnetic material layer, and a first nonmagnetic layer provided between the first magnetic layer and the second magnetic layer. The first magnetic layer and the second magnetic layer are antiferromagnetically coupled and / or magnetostatically coupled to each other. The first magnetic layer and the second magnetic layer are laminated in a direction generally parallel to a medium facing surface and generally parallel to a side surface of the recording magnetic pole intersecting with the medium facing surface.

Description

[0001] This application is based on and claims priority to Japanese Patent Application No. 2007-151390 filed on June 7, 2007 and Japanese Patent Application No. 2007-251193 filed on September 27, 2007, the entire contents of which are incorporated herein. technical field [0002] The present invention relates to a suitable magnetic recording head and a magnetic recording device for realizing high recording density, high recording capacity, high data transfer speed data storage. Background technique [0003] In the 1990s, with the practical application of MR (Magneto-Resistive effect) head and GMR (Giant Magneto-Resistive effect: Giant Magneto-Resistance effect) head, the record of HDD (Hard Disk Drive) Density and recording capacity show dramatic increases. However, since entering the 21st century, the speed of increase in recording density has temporarily slowed down due to the conspicuousness of thermal fluctuations in magnetic recording media. Even so, the practical use ...

Claims

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Application Information

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IPC IPC(8): G11B5/00G11B5/127G11B5/49H03B28/00
Inventor 高岸雅幸山田健一郎岩崎仁志秋山纯一船山知己高下雅弘清水真理子
Owner KK TOSHIBA
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