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公开(公告)号：US20090316303A1
公开(公告)日：2009-12-24
申请号：US12382940
申请日：2009-03-26
IPC分类号： G11B5/60
CPC分类号： G11B5/314 , G11B5/02 , G11B5/3146 , G11B2005/0005 , G11B2005/0024 , H03B15/006
摘要： A magnetic head assembly includes: a magnetic recording head, a head slider, a suspension and an actuator arm. The magnetic recording head includes a spin torque oscillator and a main magnetic pole. The spin torque oscillator includes, a first magnetic layer including at least one selected from the group consisting of a Fe—Co—Al alloy, a Fe—Co—Si alloy, a Fe—Co—Ge alloy, a Fe—Co—Mn alloy a Fe—Co—Cr alloy and a Fe—Co—B alloy, a second magnetic layer, and an intermediate layer provided between the first magnetic layer and the second magnetic layer. The main magnetic pole is placed together with the spin torque oscillator. The magnetic recording head is mounted on the head slider. The head slider is mounted on one end of the suspension. The actuator arm is connected to other end of the suspension.
摘要翻译： 磁头组件包括：磁记录头，磁头滑块，悬架和致动器臂。 磁记录头包括自旋扭矩振荡器和主磁极。 自旋转矩振荡器包括：第一磁性层，其包括选自由Fe-Co-Al合金，Fe-Co-Si合金，Fe-Co-Ge合金，Fe-Co-Mn 合金Fe-Co-Cr合金和Fe-Co-B合金，第二磁性层和设置在第一磁性层和第二磁性层之间的中间层。 主磁极与自旋扭矩振荡器一起放置。 磁记录头安装在磁头滑块上。 磁头滑块安装在悬架的一端。 执行器臂连接到悬架的另一端。
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公开(公告)号：US08687321B2
公开(公告)日：2014-04-01
申请号：US12382940
申请日：2009-03-26
IPC分类号： G11B5/60
CPC分类号： G11B5/314 , G11B5/02 , G11B5/3146 , G11B2005/0005 , G11B2005/0024 , H03B15/006
摘要： A magnetic head assembly includes: a magnetic recording head, a head slider, a suspension and an actuator arm. The magnetic recording head includes a spin torque oscillator and a main magnetic pole. The spin torque oscillator includes, a first magnetic layer including at least one selected from the group consisting of a Fe—Co—Al alloy, a Fe—Co—Si alloy, a Fe—Co—Ge alloy, a Fe—Co—Mn alloy a Fe—Co—Cr alloy and a Fe—Co—B alloy, a second magnetic layer, and an intermediate layer provided between the first magnetic layer and the second magnetic layer. The main magnetic pole is placed together with the spin torque oscillator. The magnetic recording head is mounted on the head slider. The head slider is mounted on one end of the suspension. The actuator arm is connected to other end of the suspension.
摘要翻译： 磁头组件包括：磁记录头，磁头滑块，悬架和致动器臂。 磁记录头包括自旋扭矩振荡器和主磁极。 自旋转矩振荡器包括：第一磁性层，其包括选自由Fe-Co-Al合金，Fe-Co-Si合金，Fe-Co-Ge合金，Fe-Co-Mn 合金Fe-Co-Cr合金和Fe-Co-B合金，第二磁性层和设置在第一磁性层和第二磁性层之间的中间层。 主磁极与自旋扭矩振荡器一起放置。 磁记录头安装在磁头滑块上。 磁头滑块安装在悬架的一端。 执行器臂连接到悬架的另一端。
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43.发明申请公开(公告)号：US20080268291A1
公开(公告)日：2008-10-30
申请号：US12109760
申请日：2008-04-25
IPC分类号： G11B5/127
CPC分类号： G11B5/314 , G11B5/02 , G11B5/1278 , G11B2005/0002 , G11B2005/0024 , Y10T428/115
摘要： A magnetic device includes a first magnetic layer having at least one magnetic material layer, a second magnetic layer having at least one magnetic material layer, a first nonmagnetic layer provided between the first magnetic layer and the second magnetic layer, a third magnetic layer including a ferromagnetic material with a fixed magnetization direction, and a pair of electrodes. The pair of electrodes are operable to pass a current through a laminated body including the first and second magnetic layers, the nonmagnetic layer, and the third magnetic layer.
摘要翻译： 磁性装置包括具有至少一个磁性材料层的第一磁性层，具有至少一个磁性材料层的第二磁性层，设置在第一磁性层和第二磁性层之间的第一非磁性层，第三磁性层， 具有固定磁化方向的铁磁材料和一对电极。 一对电极可操作以使电流通过包括第一和第二磁性层，非磁性层和第三磁性层的层叠体。
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44.发明授权公开(公告)号：US08767346B2
公开(公告)日：2014-07-01
申请号：US12591752
申请日：2009-11-30
IPC分类号： G11B5/17
CPC分类号： G11B5/09 , G11B5/1278 , G11B5/3123 , G11B5/3133 , G11B5/35 , G11B20/10222 , G11B2005/001
摘要： A magnetic recording head includes a first magnetic pole, a second magnetic pole, a spin torque oscillator, a first coil, a second coil, and a third coil. The first magnetic pole applies a recording magnetic field to a magnetic recording medium. The second magnetic pole is provided parallel to the first magnetic pole. At least a portion of the spin torque oscillator is provided between the first magnetic pole and the second magnetic pole. The first coil magnetizes the first magnetic pole. A current is passed through the second coil independently of the first coil. A current is passed through the third coil independently of both the first coil and the second coil.
摘要翻译： 磁记录头包括第一磁极，第二磁极，自旋扭矩振荡器，第一线圈，第二线圈和第三线圈。 第一磁极将记录磁场施加到磁记录介质。 第二磁极平行于第一磁极设置。 至少一部分自旋扭矩振荡器设置在第一磁极和第二磁极之间。 第一线圈磁化第一磁极。 独立于第一线圈的电流通过第二线圈。 独立于第一线圈和第二线圈两者都经过第三线圈。
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45.发明申请公开(公告)号：US20120243127A1
公开(公告)日：2012-09-27
申请号：US13239496
申请日：2011-09-22
CPC分类号： G11B5/3906 , G01R33/093 , G11B5/1278 , G11B2005/0002 , G11B2005/0008 , H01F10/3254 , H01F10/3272 , H01F10/3286 , H01F10/329 , H01L43/08 , Y10T428/11
摘要： According to one embodiment, a magnetic head includes a reproducing section. The reproducing section detects a medium magnetic field recorded in a magnetic recording medium. The reproducing section includes a stacked film and a magnetic field application unit. The stacked film includes a first magnetization layer and a second magnetization layer. The first magnetization layer has a perpendicular magnetic anisotropy. A magnetization of the first magnetization layer being is fixed. The second magnetization layer is stacked with the first magnetization layer and oscillates. The magnetic field application unit is stacked with the stacked film and applies a bias magnetic field having a component along the first axis to the stacked film. A resistance of the stacked film changes in accordance with the medium magnetic field when a current not less than a value at which the second magnetization layer oscillates is passed.
摘要翻译： 根据一个实施例，磁头包括再现部分。 再现部分检测记录在磁记录介质中的介质磁场。 再现部分包括堆叠膜和磁场施加单元。 层叠膜包括第一磁化层和第二磁化层。 第一磁化层具有垂直的磁各向异性。 第一磁化层的磁化是固定的。 第二磁化层与第一磁化层堆叠并振荡。 磁场施加单元与层叠的膜堆叠，并且将具有沿着第一轴的分量的偏置磁场施加到堆叠的膜。 当不小于第二磁化层振荡的值的电流通过时，堆叠膜的电阻根据中等磁场而变化。
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公开(公告)号：US08264799B2
公开(公告)日：2012-09-11
申请号：US12109760
申请日：2008-04-25
IPC分类号： G11B5/33
CPC分类号： G11B5/314 , G11B5/02 , G11B5/1278 , G11B2005/0002 , G11B2005/0024 , Y10T428/115
摘要： A magnetic device includes a first magnetic layer having at least one magnetic material layer, a second magnetic layer having at least one magnetic material layer, a first nonmagnetic layer provided between the first magnetic layer and the second magnetic layer, a third magnetic layer including a ferromagnetic material with a fixed magnetization direction, and a pair of electrodes. The pair of electrodes are operable to pass a current through a laminated body including the first and second magnetic layers, the nonmagnetic layer, and the third magnetic layer.
摘要翻译： 磁性装置包括具有至少一个磁性材料层的第一磁性层，具有至少一个磁性材料层的第二磁性层，设置在第一磁性层和第二磁性层之间的第一非磁性层，第三磁性层， 具有固定磁化方向的铁磁材料和一对电极。 一对电极可操作以使电流通过包括第一和第二磁性层，非磁性层和第三磁性层的层叠体。
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47.发明申请公开(公告)号：US20100134922A1
公开(公告)日：2010-06-03
申请号：US12591752
申请日：2009-11-30
IPC分类号： G11B5/17
CPC分类号： G11B5/09 , G11B5/1278 , G11B5/3123 , G11B5/3133 , G11B5/35 , G11B20/10222 , G11B2005/001
摘要： A magnetic recording head includes a first magnetic pole, a second magnetic pole, a spin torque oscillator, a first coil, a second coil, and a third coil. The first magnetic pole applies a recording magnetic field to a magnetic recording medium. The second magnetic pole is provided parallel to the first magnetic pole. At least a portion of the spin torque oscillator is provided between the first magnetic pole and the second magnetic pole. The first coil magnetizes the first magnetic pole. A current is passed through the second coil independently of the first coil. A current is passed through the third coil independently of both the first coil and the second coil.
摘要翻译： 磁记录头包括第一磁极，第二磁极，自旋扭矩振荡器，第一线圈，第二线圈和第三线圈。 第一磁极将记录磁场施加到磁记录介质。 第二磁极平行于第一磁极设置。 至少一部分自旋扭矩振荡器设置在第一磁极和第二磁极之间。 第一线圈磁化第一磁极。 独立于第一线圈的电流通过第二线圈。 独立于第一线圈和第二线圈两者都经过第三线圈。
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48.发明授权Magnetic head with stacked magnetic layers, magnetic head assembly, and magnetic recording/reproducing apparatus 有权具有堆叠磁性层的磁头，磁头组件和磁记录/再现装置公开(公告)号：US08564904B2
公开(公告)日：2013-10-22
申请号：US13239496
申请日：2011-09-22
IPC分类号： G11B5/127
CPC分类号： G11B5/3906 , G01R33/093 , G11B5/1278 , G11B2005/0002 , G11B2005/0008 , H01F10/3254 , H01F10/3272 , H01F10/3286 , H01F10/329 , H01L43/08 , Y10T428/11
摘要： According to one embodiment, a magnetic head includes a reproducing section. The reproducing section detects a medium magnetic field recorded in a magnetic recording medium. The reproducing section includes a stacked film and a magnetic field application unit. The stacked film includes a first magnetization layer and a second magnetization layer. The first magnetization layer has a perpendicular magnetic anisotropy. A magnetization of the first magnetization layer being is fixed. The second magnetization layer is stacked with the first magnetization layer and oscillates. The magnetic field application unit is stacked with the stacked film and applies a bias magnetic field having a component along the first axis to the stacked film. A resistance of the stacked film changes in accordance with the medium magnetic field when a current not less than a value at which the second magnetization layer oscillates is passed.
摘要翻译： 根据一个实施例，磁头包括再现部分。 再现部分检测记录在磁记录介质中的介质磁场。 再现部分包括堆叠膜和磁场施加单元。 层叠膜包括第一磁化层和第二磁化层。 第一磁化层具有垂直的磁各向异性。 第一磁化层的磁化是固定的。 第二磁化层与第一磁化层堆叠并振荡。 磁场施加单元与层叠的膜堆叠，并且将具有沿着第一轴的分量的偏置磁场施加到堆叠的膜。 当不小于第二磁化层振荡的值的电流通过时，堆叠膜的电阻根据中等磁场而变化。
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49.发明申请公开(公告)号：US20120262821A1
公开(公告)日：2012-10-18
申请号：US13296004
申请日：2011-11-14
CPC分类号： G11B5/314 , G11B5/235 , G11B2005/0024
摘要： According to one embodiment, a magnetic recording head includes a main pole configured to apply a recording magnetic field perpendicular to a recording medium, a trailing-shield pole opposed to the main pole with a recording gap therebetween, a high-frequency oscillator between the main pole and the trailing-shield pole in the recording gap, configured to produce a high-frequency magnetic field, a magnetic seed layer between the main pole and the high-frequency oscillator and in contact with the main pole, and a highly oriented magnetic layer of a soft magnetic material superposed on the magnetic seed layer between the main pole and the high-frequency oscillator and in contact with the high-frequency oscillator.
摘要翻译： 根据一个实施例，磁记录头包括被配置为施加垂直于记录介质的记录磁场的主极，与主极相对的后屏蔽极，其间具有记录间隙，在主体之间的高频振荡器 磁极和后屏蔽极在记录间隙中，被配置为产生高频磁场，主极和高频振荡器之间的磁性种子层，并与主极接触，并且高取向磁性层 叠置在主极与高频振荡器之间的磁性种子层上并与高频振荡器接触的软磁性材料。
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50.发明申请MAGNETIC HEAD, MAGNETIC HEAD ASSEMBLY, AND MAGNETIC RECORDING/REPRODUCING APPARATUS 审中-公开磁头，磁头组件和磁记录/再现装置公开(公告)号：US20110242705A1
公开(公告)日：2011-10-06
申请号：US12881555
申请日：2010-09-14
CPC分类号： G11B5/398 , B82Y10/00 , B82Y25/00 , G01R33/093 , G01R33/098 , G11B5/3912 , G11B2005/3996 , H01L43/02
摘要： According to one embodiment, a magnetic head includes a reproducing section. The reproducing section includes a first magnetic shield, a second magnetic shield, a magnetoresistive effect film, and a third magnetic shield. The magnetoresistive effect film is provided between the first magnetic shield and the second magnetic shield and includes a first magnetization free layer changing a magnetization direction in response to an external magnetic field. The third magnetic shield is provided between the magnetoresistive effect film and the first magnetic shield and has a higher saturation magnetic flux density than the first magnetic shield.
摘要翻译： 根据一个实施例，磁头包括再现部分。 再现部分包括第一磁屏蔽，第二磁屏蔽，磁阻效应膜和第三磁屏蔽。 磁阻效应膜设置在第一磁屏蔽和第二磁屏蔽之间，并且包括响应于外部磁场改变磁化方向的第一磁化自由层。 第三磁屏蔽设置在磁阻效应膜和第一磁屏蔽之间，并且具有比第一磁屏蔽更高的饱和磁通密度。
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