摘要:
Described herein is a tunnel type magnetic detection element and a manufacturing method thereof. In the tunnel type magnetic detection element, an enhance layer included in a free magnetic layer disposed on an insulating barrier layer contacts the insulating barrier layer, which may be made of an oxide such as titanium oxide. Under the insulating barrier layer, a second pinned magnetic layer constituting a pinned magnetic layer is formed. The second pinned magnetic layer has a fcc structure in which crystal planes equivalent to a (111) plane are aligned parallel to a layer surface, and the insulating barrier layer is formed to have a rutile structure or the like. The enhance layer is formed to have a bcc structure in which crystal planes equivalent to a (110) plane are aligned parallel to a layer surface.
摘要:
A tunnel-type magnetic detecting element is provided. The tunnel-type magnetic detecting element includes a first ferromagnetic layer; an insulating barrier layer; and a second ferromagnetic layer. The first ferromagnetic layer, the second ferromagnetic layer, or both have a Heusler alloy layer contacting the insulating barrier layer. Equivalent planes represented by {110} surfaces, are preferentially oriented parallel to a film surface in the Heusler alloy layer. The insulating barrier layer is formed of MgO and the equivalent crystal planes represented by the {100} surfaces or the equivalent crystal planes represented by the {110} surfaces are oriented parallel to the film surface.
摘要:
A free magnetic layer contains free magnetic material layers and an intermediate layer interposed therebetween. A fixed magnetic layer contains fixed magnetic material layers and a non-magnetic intermediate layer interposed therebetween. The free magnetic material layer and the fixed magnetic material layers are formed at equivalent film positions. The magnetizations of the fixed magnetic material layers provided in a vertical direction are antiparallel to each other, and the magnetizations of the free magnetic material layers provided in the vertical direction are antiparallel to each other. By an external magnetic field, the magnetizations of the free magnetic material layer are rotated in phase to magnetization directions of the fixed magnetic material layers.
摘要:
Disclosed are a magnetic sensing element in which side reading can be prevented, read sensitivity can be improved, and gap narrowing is enabled, and a method for fabricating the same. A magnetic sensing element includes a pair of first antiferromagnetic layers separated by a first spacer section. A first spacer layer is disposed in the first spacer section. The first spacer layer has the same composition as that of the first antiferromagnetic layers, and has a disordered crystal structure with a thickness that is smaller than that of the first antiferromagnetic layers. A first free magnetic layer is disposed on the continuous surface including the upper surfaces of the first antiferromagnetic layers and the first spacer layers. The magnetic sensing element also includes a nonmagnetic interlayer, a second free magnetic layer, and a pair of second antiferromagnetic layers separated by a second spacer section on the second free magnetic layer.
摘要:
A first free magnetic layer, a second free magnetic layer, a lower pinned magnetic layer, and an upper pinned magnetic layer are formed of magnetic materials whose β values are suitably set so that the resistances for up-spin conduction electrons of all the magnetic layers become lower than those for down-spin conduction electrons when the magnetization of a free magnetic layer is changed to exhibit a lowest resistance. The magnetic detecting element exhibits an increased change in resistance per area.
摘要:
There is provided a magnetic detecting element which can realize high reproduction power and reduce asymmetry of reproduction waveforms by devising a configuration of a free magnetic layer or a pinned magnetic layer, and a method of manufacturing a magnetic detecting element. The free magnetic layer is formed to have a three-layered structure of a CoMnZ alloy layer, a CoMnX alloy layer, and a CoMnZ alloy layer. The CoMnX alloy layer is formed of a metal compound whose compositional formula is represented by CoaMnbXc (X is one or more elements selected from a group of Ge, Sn, Ga, and Sb, a, b, and c are atomic percent, and a+b+c=100 atomic percent). The CoMnZ alloy layer is formed of a metal compound whose compositional formula is represented by CodMneZf (Z is Al or Si, d, e, and f are atomic percent, and d+e+f=100 atomic percent).
摘要翻译:提供了一种通过设计自由磁性层或钉扎磁性层的构造来实现高再现能力并减少再现波形的不对称性的磁性检测元件,以及制造磁性检测元件的方法。 自由磁性层形成为具有CoMnZ合金层,CoMnX合金层和CoMnZ合金层的三层结构。 CoMnX合金层由金属化合物形成,其组成式由下式表示:(X是一个或多个元素 选自Ge,Sn,Ga和Sb中的一组,a,b和c是原子百分数,a + b + c = 100原子%)。 CoMnZ合金层由金属化合物形成,其组成式由下式表示:Z为Al或Si, d,e和f是原子百分比,d + e + f = 100原子%)。
摘要:
A PtMn alloy film known as an antiferromagnetic material having excellent corrosion resistance is used for an antiferromagnetic layer. However, an exchange coupling magnetic field is decreased depending upon the conditions of crystal grain boundaries. Therefore, in the present invention, the crystal grain boundaries formed in an antiferromagnetic layer (PtMn alloy film) and the crystal grain boundaries formed in a ferromagnetic layer are made discontinuous in at least a portion of the interface between both layers. As a result, the antiferromagnetic layer can be appropriately transformed to an ordered lattice by heat treatment to obtain a larger exchange coupling magnetic field than a conventional element.
摘要:
An exchange coupling film including an antiferromagnetic layer and a ferromagnetic layer in contact with the antiferromagnetic layer so as to generate an exchange coupling magnetic field is provided. A PtMn alloy is used as the material of the antiferromagnetic layer. Crystal planes of the antiferromagnetic layer and the ferromagnetic layer preferentially aligned parallel to the interface are crystallographically identical and crystallographically identical axes lying in these crystal planes are oriented, at least partly, in different directions between the antiferromagnetic layer and the ferromagnetic layer. Thus, a proper order transformation occurs in the antiferromagnetic layer as a result of heat treatment and an increased exchange coupling magnetic field can be obtained.
摘要:
A magnetoresistive element includes a meandering X-axis array that is constituted by X-axis segments alternately connected, and a meandering Y-axis array that is constituted by Y-axis segments alternately connected. When rotated 90°, the Y-axis array has the same layout as the X-axis array. Such a structure cancels the electrical resistance change due to the AMR effect, thus reducing the waveform distortion of output voltage.
摘要:
A magnetic layer 14c of a pinned magnetic layer 14 has a three-layered structure formed of a CoFe layer 14c1, a NiaFeb alloy layer 14c2 (where a and b each indicate atomic percent, and 0