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9042151 |
Racetrack memory with electric-field assisted domain wall injection for low-power write operation
Embodiments are directed to injecting domain walls in a magnetic racetrack memory. In some embodiments, a racetrack comprising a nanowire is coupled with a gate in order to manipulate an... |
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8995163 |
Magnetic memory
A magnetic memory according to an embodiment includes: a magnetic layer including a plurality of magnetic domains and a plurality of domain walls, and extending in a direction; a pinning layer... |
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8902626 |
Pinning magnetic domain walls in a magnetic domain shift register memory device
A method of pinning magnetic domain walls in magnetic domain shift registers includes pinning the magnetic domain walls at a plurality of pinning sites in a nanowire, reducing an energy of the... |
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8830718 |
Magnetic memory
A magnetic memory includes a magnetic wire, a first insulating layer, first electrodes a second electrode, a current supplying module, and a voltage applying module. The magnetic wire includes a... |
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8787062 |
Pinning magnetic domain walls in a magnetic domain shift register memory device
A magnetic domain wall shift register memory device includes a nanowire, a plurality of pinning sites disposed along the nanowire and a control line arranged substantially parallel to the nanowire... |
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8750012 |
Racetrack memory with low-power write
Racetrack memory units and methods for writing include a racetrack memory medium; a heat source/sink configured to change temperature according to an applied current; and a magnon source material... |
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8750013 |
Racetrack memory with low-power write
Methods for writing include applying a current pulse to a racetrack memory medium to position a domain in proximity to a thermally triggered magnon source in contact with the racetrack memory... |
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8743584 |
Shift register memory and driving method thereof
A shift register memory according to the present embodiment includes a magnetic pillar including a plurality of magnetic layers and a plurality of nonmagnetic layers provided between the magnetic... |
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8687414 |
Magnetic memory element and magnetic random access memory
A magnetic memory cell includes: a magnetization recording layer; and a magnetic tunneling junction section. The magnetization recording layer includes a ferromagnetic layer with perpendicular... |
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8649214 |
Magnetic memory including magnetic memory cells integrated with a magnetic shift register and methods thereof
A magnetic memory includes magnetic memory elements corresponding to magnetic memory cells and at least one shift register. Each magnetic memory element includes a pinned layer, a free layer, and... |
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8638601 |
Domain wall motion in perpendicularly magnetized wires having magnetic multilayers with engineered interfaces
Magnetic wires that include cobalt, nickel, and platinum layers show improved domain wall motion properties, when the domain walls are driven by pulses of electrical current. These wires exhibit... |
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8580408 |
Apparatus for moving magnetic domain wall and memory device including magnetic field application unit
An apparatus for moving a magnetic domain wall and a memory device using a magnetic field application unit are provided. The apparatus for moving a magnetic domain wall includes a magnetic layer... |
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8467222 |
Reader for magnetic shift register
A reader for magnetic shift register is provided. The reader includes a magnetic reference layer, a tunneling layer, a magnetic canceling layer and an isolated layer. The magnetic reference layer... |
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8467221 |
Magnetic spin shift register memory
A method for forming a memory device includes forming a cavity having an inner surface with an undulating profile in a substrate, depositing a ferromagnetic material in the cavity, forming a... |
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8437167 |
Shift register memory device, shift register, and data storage method
According to one embodiment, a shift register memory device includes a shift register, a program/read element, and a rotating force application unit. The shift register includes a plurality of... |
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8437160 |
Multi-stack memory device
Provided is a multi-stack memory device that includes a storage unit group including a plurality of storage units that are vertically stacked and form a plurality of storage unit rows, and a... |
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8406029 |
Identification of data positions in magnetic packet memory storage devices, memory systems including such devices, and methods of controlling such devices
In a memory device and in a method for controlling a memory device, the memory device comprises a magnetic structure that stores information in a plurality of domains of the magnetic structure. A... |
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8379429 |
Domain wall motion element and magnetic random access memory
A domain wall motion element has a magnetic recording layer 10 that is formed of a ferromagnetic film and has a domain wall DW. The magnetic recording layer 10 has: a pair of end regions 11-1 and... |
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8351235 |
Level shift circuit
A feedback circuit by which an output of a memory device for storing level-shifted data can be fed back to the input side includes inverters, resistors, and transistors. The resistance value of... |
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8331125 |
Array architecture and operation for high density magnetic racetrack memory system
A high density memory architecture comprising magnetic racetrack memory and a method of operation. The memory architecture comprises a plurality of magnetic memory structures, each the structure... |
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8320152 |
Information storage devices using magnetic domain wall movement and methods of operating the same
An information storage device includes a storage node, a write unit configured to write information to a first magnetic domain region of the storage node, and a read unit configured to read... |
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8300621 |
System and method for timing acquisition and carrier frequency offset estimation in wireless communication based on OFDM
The present invention relates to a method for timing acquisition and carrier frequency offset estimation of an OFDM communication system and an apparatus using the same. For this purpose the... |
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8279653 |
Magnetic shift register memory in stack structure
A magnetic shift register memory in stack structure includes magnetic shift registering layers for forming an unit of stack structure. Each registering layer has multiple magnetic domains and each... |
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8270197 |
Method of operating information storage device using magnetic domain wall movement
A method of operating an information storage device using a magnetic domain wall movement in a magnetic nanowire is provided. The magnetic nanowire includes a plurality of magnetic domains and... |
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8238135 |
MRAM utilizing free layer having fixed magnetization regions with larger damping coefficient than the switching region
A magnetic recording layer 10 of an MRAM has a first magnetization fixed region 11, a second magnetization fixed region 12 and a magnetization switching region 13. The magnetization switching... |
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8238150 |
Information storage element and method of writing/reading information into/from information storage element
An information storage element includes a strip-shaped ferromagnetic material layer; a first electrode disposed at a first end of the ferromagnetic material layer; and a second electrode disposed... |
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8233305 |
Magnetic structures, information storage devices including magnetic structures, methods of manufacturing and methods of operating the same
A magnetic structure includes a first portion and a plurality of second portions. The first portion extends in a first direction. The plurality of second portions extend from ends of the first... |
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8218377 |
Fail-safe high speed level shifter for wide supply voltage range
A fail-safe level shifter switching with high speed and operational for a wide range of voltage supply includes a cascode module, and one or more speed enhancer modules. The cascode module... |
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8213210 |
Magnetic shift register and reading method
A magnetic shift register including at least one magnetic track is provided. Each magnetic track has at least one set of burst data formed by a plurality of consecutive magnetic domains. Each... |
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8164940 |
Read/write structures for a three dimensional memory
Read/write structures for three-dimensional memories are disclosed. In one embodiment, a three-dimensional memory includes a plurality of data storage layers fabricated in parallel on top of one... |
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8164939 |
Magnetic shift register memory
A magnetic shift register memory includes a magnetic track and a reference magnetic region. The magnetic track has multiple magnetic domains. Each of the magnetic domains stores one bit data. One... |
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8130531 |
Magnetic memory structure and operation method
A magnetic memory structure includes a memory track which has consecutive magnetic domains. Each of the magnetic domains has memory capacity of one bit. A first domain-wall injecting layer... |
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8130530 |
Information storage devices using magnetic domain wall movement and methods of operating the same
Provided are information storage devices using movement of magnetic domain walls and methods of operating information storage devices. An information storage device includes a magnetic track and... |
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8125814 |
Magnetic memory, driving method thereof, and manufacturing method thereof
A magnetic memory, a driving method thereof, and a manufacturing method thereof are provided. The magnetic memory includes a plurality of lead structures, a plurality of first magnetic metal... |
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8089797 |
Information storage devices including vertical nano wires
A memory cell includes: a memory cell array unit having a plurality of nano wires arranged vertically on a substrate, each of the plurality of nano wires having a plurality of domains for storing... |
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8050074 |
Magnetic packet memory storage devices, memory systems including such devices, and methods of controlling such devices
A memory device is comprised of a magnetic structure that stores information in a plurality of domains of the magnetic structure. A write unit writes information to at least one of the plurality... |
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8023305 |
High density planar magnetic domain wall memory apparatus
A magnetic domain wall memory apparatus with write/read capability includes a plurality of coplanar shift register structures each comprising an elongated track formed from a ferromagnetic... |
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8018764 |
Magnetic tracks, information storage devices including magnetic tracks, and methods of operating information storage devices
A magnetic track includes first and second magnetic domain regions having different lengths and different magnetic domain wall movement speeds. A longer of the first and second magnetic domain... |
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8009453 |
High density planar magnetic domain wall memory apparatus
A magnetic domain wall memory apparatus with write/read capability includes a plurality of coplanar shift register structures each comprising an elongated track formed from a ferromagnetic... |
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7969762 |
Spintronic device with control by domain wall displacement induced by a current of spin-polarized carriers
The general field of the invention is that of spintronics, namely the field of electronics using the magnetic spin properties of electrons. The main fields of application are the very large-scale... |
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7965535 |
Electrode master for ferroelectric recording and method for recording on ferroelectric recording medium
An electrode master for ferroelectric recording records information on a ferroelectric recording medium in which the direction of polarization of a ferroelectric material has been unified in one... |
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7965470 |
Information storage device using movement of magnetic domain wall, and methods of manufacturing and operating the information storage device
Provided are an information storage device using movement of a magnetic domain wall, and methods of manufacturing and operating the information storage device. The information storage device... |
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7965468 |
Magnetic racetrack memory device including write-back loop
A magnetic racetrack memory device includes; a magnetic track having a plurality of magnetic domains partitioned by at least one magnetic domain wall, a current source applying current to the... |
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7952905 |
Data storage device using magnetic domain wall movement and method of operating the same
Provided are a data storage device using magnetic domain wall movement and a method of operating the data storage device. The data storage device includes a first magnetic layer for writing data... |
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7924593 |
Information storage devices and methods of operating the same
Provided are an information storage device and a method of operating the same. The information storage device includes: a magnetic layer having a plurality of magnetic domain regions and a... |
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7924594 |
Data writing and reading method for memory device employing magnetic domain wall movement
A method of data recording and reading for a memory device employing magnetic domain wall movement. The memory device includes a writing track, an interconnecting layer formed on the writing... |
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7876595 |
Magnetic shift register as counter and data storage device
A register having a track with a first electrode is at the first end to supply a current to the track in a first direction and a second electrode at the second end to supply a current to the track... |
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7872896 |
Magnetic shift register and operation method thereof
A magnetic shift register includes at least a magnetic memory track of which several walls separate the memory track into multiple magnetic domains to serve as magnetic binary memory cells. The... |
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7869264 |
Information storage devices using magnetic domain wall movement and methods of operating the same
An information storage device includes a record head and a data recording medium. The record head includes a magnetic substance having magnetic domain walls and records data in the data recording... |
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7855908 |
Information storage devices using magnetic domain wall motion and methods of operating the same
An information storage device using magnetic domain wall motion and a method of operating the same are provided. The information storage device includes a magnetic track having a plurality of... |