公开(公告)号：WO2009051441A1

公开(公告)日：2009-04-23

申请号：PCT/KR2008/006150

申请日：2008-10-17

Applicant: SNU R & DB FOUNDATION ,  KIM, Sang-Koog ,  LEE, Ki-Suk ,  YU, Young-Sang

Inventor： KIM, Sang-Koog ,  LEE, Ki-Suk ,  YU, Young-Sang

IPC: G11C11/15

CPC classification number: G11C11/1675 ,  G11C11/161 ,  G11C11/1673

Abstract: Provided are a method for recording information in a magnetic recording element and a method for recording information in a magnetic random access memory. The method for recording in¬ formation in a magnetic recording element includes preparing the magnetic recording element having a magnetic free layer in which a magnetic vortex is formed. A current or a magnetic field whose direction varies with time is applied to the magnetic free layer to switch a core orientation of a magnetic vortex formed in the magnetic free layer to an upward direction or downward direction from a top surface of the magnetic free layer "0" or " 1 " is assigned according to the direction of the core orientation of the magnetic vortex formed in the magnetic free layer. According to the method for recording information in a magnetic recording element of the present invention, the core orientation of the magnetic vortex formed in the magnetic free layer of the magnetic recording element can be selectively switched by applying a current or magnetic field whose direction varies with time to the magnetic recording element, so that information can be easily and correctly recorded, lower power is consumed in recording information, and the switching for recording information can be performed very rapidly.

Abstract translation: 提供了一种在磁记录元件中记录信息的方法和用于在磁随机存取存储器中记录信息的方法。 记录在磁记录元件中的方法包括制备具有形成磁涡流的无磁层的磁记录元件。 向磁性层施加方向随时间变化的电流或磁场，以将磁性自由层中形成的磁涡流的芯取向从无磁层的顶面向上方向或向下方向“ 0“或”1“根据形成在磁性自由层中的磁涡流的芯取向的方向分配。 根据本发明的磁记录元件中记录信息的方法，可以通过施加电流或磁场来选择性地切换形成在磁记录元件的磁性自由层中的磁涡流的磁心取向，该电流或磁场的方向随着 从而可以容易且正确地记录信息，在记录信息中消耗较低的功率，并且可以非常快速地执行用于记录信息的切换。

公开(公告)号：WO2007037625A1

公开(公告)日：2007-04-05

申请号：PCT/KR2006/003874

申请日：2006-09-28

Applicant: SEOUL NATIONAL UNIVERSITY INDUSTRY FOUNDATION ,  KIM, Sang-Koog ,  LEE, Ki-Suk ,  CHOI, Sang-Kook

Inventor： KIM, Sang-Koog ,  LEE, Ki-Suk ,  CHOI, Sang-Kook

IPC: G11B5/66

CPC classification number: H03K19/168 ,  G11C11/161 ,  G11C11/1675 ,  G11C13/06 ,  H01F1/401 ,  H01F1/408 ,  H03B15/006

Abstract: Provided are a method of generating strong spin waves, a method of simultaneously generating spin waves and electromagnetic waves, a logic operation device using spin waves, a variety of spin wave devices employing the same, and a method of controlling phases of spin waves. In the method of generating spin waves, strong spin waves are generated by supplying various shapes of energies to a magnetic material in which a magnetic vortex and magnetic antivortex spin structures exist separately or together. When energies are applied to a patterned magnetic material so that magnetic vortex or magnetic antivortex can be generated, a strong torque is generated in a vortex core so that strong spin waves can be generated from the vortex core. The spin waves generated in this way have large amplitudes, short wavelengths, and high frequencies. In the logic operation device using spin waves and the spin wave devices employing the same, wave factors of frequency, wavelength, amplitude, and phase of a spin wave generated by the method of generating spin waves are controlled and wave characteristics such as reflection, refraction, transmission, tunneling, superposition, interference, and diffraction are used. According to the present invention, logic operation spin wave devices capable of performing ultra¬ high speed information processing and various shapes of optical devices using waves in optics can be reconstructed using spin waves.

Abstract translation: 提供了产生强自旋波的方法，同时产生自旋波和电磁波的方法，使用自旋波的逻辑运算装置，采用该自旋波的各种自旋波装置以及控制自旋波相位的方法。 在产生自旋波的方法中，通过向磁性材料提供各种形状的能量而产生强的自旋波，其中分别或一起存在磁涡旋和磁性抗涡旋结构。 当将能量施加到图案化的磁性材料上使得可以产生磁涡旋或磁性反向涡流时，在涡流磁芯中产生强扭矩，从而可以从涡流芯产生强的自旋波。 以这种方式产生的自旋波幅度较大，波长短，频率高。 在使用自旋波的逻辑运算装置和采用该自旋波装置的自旋波装置中，通过产生自旋波的方法产生的自旋波的频率，波长，幅度和相位的波因数被控制，并且波特性如反射，折射 ，使用传输，隧道，叠加，干涉和衍射。 根据本发明，可以使用自旋波来重构能够执行超高速信息处理的逻辑运算自旋波装置和使用光学中的波的各种形状的光学装置。

公开(公告)号：WO2009051442A3

公开(公告)日：2009-04-23

申请号：PCT/KR2008/006151

申请日：2008-10-17

Applicant: SNU R & DB FOUNDATION ,  KIM, Sang-Koog ,  LEE, Ki-Suk ,  YU, Young-Sang

Inventor： KIM, Sang-Koog ,  LEE, Ki-Suk ,  YU, Young-Sang

IPC: G11B5/02

Abstract: Provided are a method for read-out of information in a magnetic recording element and a method for read-out of information in a magnetic random access memory. In the method, a magnetic recording element including a magnetic free layer where a magnetic vortex is formed is prepared, and "0" or "1" is assigned according to a core orientation of a magnetic vortex formed in the magnetic free layer. The magnetic vortex core formed in the magnetic free layer rotates on the magnetic free layer by applying a current or magnetic field, of which a direction varies with time, to the magnetic free layer with the magnetic vortex formed. "0" or "1" assigned according to the core orientation of the magnetic vortex formed in the magnetic free layer is read out by measuring a characteristic caused by a difference in a rotation radius of the magnetic vortex core. Herein, the rotation radius of the magnetic vortex core, which is formed in the magnetic free layer and rotates by the applied current or magnetic field, varies with the core orientation of the magnetic vortex formed in the magnetic free layer.

公开(公告)号：WO2009051435A1

公开(公告)日：2009-04-23

申请号：PCT/KR2008/006138

申请日：2008-10-17

Applicant: SNU R & DB FOUNDATION ,  KIM, Sang-Koog ,  LEE, Ki-Suk ,  YU, Young-Sang

Inventor： KIM, Sang-Koog ,  LEE, Ki-Suk ,  YU, Young-Sang

IPC: G11C11/15

CPC classification number: G11C11/155 ,  H01L27/222 ,  H01L43/08

Abstract: Provided are an ultrafast magnetic recording element and a nonvolatile magnetic random access memory using the same. The magnetic recording element includes a read electrode, a magnetic pinned layer formed on the read electrode, and an insulating layer or a conductive layer formed on the magnetic pinned layer. The magnetic recording element includes a magnetic free layer formed on the insulating layer or the conductive layer, in which a magnetic vortex is formed, and a plurality of drive electrodes applying a current or magnetic field to the magnetic free layer. Alternatively, the magnetic recording element includes a magnetic free layer in which a magnetic vortex is formed, a plurality of drive electrodes applying a current or a magnetic field to the magnetic free layer, and a read line disposed around the magnetic free layer. Herein, a current generated by a voltage induced by the movement of a magnetic vortex core flows through the read line. According to the magnetic recording elements, the magnetic recording element with a simple structure can be realized using a magnetic layer with a magnetic vortex formed, and the magnetic recording element can be accurately driven with low power using a plurality of drive electrodes.

Abstract translation: 提供了一种超快磁记录元件和使用其的非易失磁性随机存取存储器。 磁记录元件包括读电极，形成在读电极上的磁性钉扎层，以及形成在磁性钉扎层上的绝缘层或导电层。 磁记录元件包括形成在其上形成磁涡流的绝缘层或导电层上的无磁性层和向无磁层施加电流或磁场的多个驱动电极。 或者，磁记录元件包括其中形成磁涡流的无磁性层，向无磁性层施加电流或磁场的多个驱动电极，以及设置在磁性自由层周围的读取线。 这里，由磁涡流芯的运动引起的电压产生的电流流过读线。 根据磁记录元件，具有简单结构的磁记录元件可以使用形成有磁涡流的磁性层来实现，并且可以使用多个驱动电极以低功率精确地驱动磁记录元件。

公开(公告)号：WO2002085494A1

公开(公告)日：2002-10-31

申请号：PCT/KR2002/000711

申请日：2002-04-18

Applicant: LEE, Ki-Suk

Inventor： LEE, Ki-Suk

IPC: B01D35/30

CPC classification number: C02F1/42 ,  B01J47/022 ,  C02F5/00 ,  C02F2101/20 ,  C02F2201/00 ,  C02F2307/06 ,  E03C2201/40

Abstract: The object of this invention is to provide a water softener for softening hard water to produce soft water. This water softener is easily and simply connected to existing hot and cold water supply pipes, and installed proximately to a wall. In this water softener, hot and cold soft water tanks (1A, 1B), each having ion exchange resin (2), are installed at the tops of hot and cold valve housings (10A, 10B) such that the tanks are movable forward and backward while maintaining their vertical positions. The two valve housings (10A, 10B) are connected to hot and cold water supply pipes (30A, 30B), and control the flow of hard water fed from the two supply pipes (30A, 30B) so as to feed the hard water to the two tanks (1A, 1B), and discharge soft water or waste water from the tanks to the outside through a faucet (32).

Abstract translation: 本发明的目的是提供一种用于软化硬水以产生软水的软水器。 该软水器容易且简单地连接到现有的冷热水供应管道，并且靠近墙壁安装。 在这种软水器中，每个具有离子交换树脂（2）的冷热软水箱（1A，1B）安装在冷热阀壳体（10A，10B）的顶部，使得罐可向前移动， 向后，同时保持其垂直位置。 两个阀壳体（10A，10B）连接到冷热水供应管（30A，30B），并且控制从两个供给管（30A，30B）供给的硬水的流动，​​以将硬水供给到 两个罐（1A，1B），并通过水龙头（32）将软水或废水从罐排出到外部。