1.8-V nanospeed R/W module for 64-kB cross-point cell magnetic random access memory

Li, S.C.; Lee, Jia-Mou; Su, Juhng-Perng; Wu, Te‐Ho

doi:10.1109/tmag.2004.842090

Cited by 9 publications

(3 citation statements)

References 5 publications

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“…The magnetism of diluted Co-Hf and Co-Pt nano-clusters, depends on magnetic particle size and dopant volume fraction. The experimental and theoretical study of cluster beam deposited Co mono-dispersed magnetic clusters embedded in Cu and SiO 2 matrix reported, where interface effects are smaller and inter-cluster exchange interaction played key role for experimentally observed ferromagnetism [9]. Magnetic nano-composites can be prepared by various methods such as electro deposition, cluster beam deposition and self-assembly process.…”

Section: Introductionmentioning

confidence: 99%

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Structure and Magnetic Properties Investigation of CoZr and CoZrN Thin Films

Singh

Gupta

et al. 2013

AMM

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nanocomposite [(Co91.5Zr8.5)- or CZN films has been prepared by reactive co-sputter deposition method. Nitrogen content plays key role to tune soft magnetic properties. Experimental observation shows that, non-magnetic nitrogen content enhances magnetization and reduces coercivity. The nanostructure is composed of Co nanoclusters embedded in CoN/ZrN matrix, revealed by high resolution transmission electron microscope study. The d-spacing of single Co nanocluster was found to be ~0.22nm corresponding to (002) phase of Cobalt. X-ray diffraction result is in agreement with cubic (400) and (622) phase of CoZr. High electrical resistivity ρs~108μΩ-cm attained corresponding to 16% N2content films. Hysteresis loop squareness depends on film thickness and coercivity squareness (S*)~0.84, obtained for ~250nm film thickness. A correlated composite nanostructure evolution is responsible for nitrogen induced magnetization and, suggests that film properties can tuned by controlling nitrogen content, in CoN/ZrN composite matrix.

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Section: Introductionmentioning

confidence: 99%

“…Modern deposition methods made it possible to grow nano-composite films with precise control on particle size. Reactive sputter deposition is a method of choice where particle size can be more precisely controlled [7,9]. The optimal soft magnetic properties obtained by tuning process parameters.…”

Section: Introductionmentioning

confidence: 99%

Structure and Magnetic Properties Investigation of CoZr and CoZrN Thin Films

Singh

Gupta

et al. 2013

AMM

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“…Nanocomposite oxygen-based soft magnetic films, TM-X-O (where TM is ferromagnetic transition metal element or alloy, X = Al, Zr, Y, Hf, etc), have long been developed due to their relative high permeability characteristic at high frequency [1][2][3]. Their large electrical resistance and relative strong magnetic uniaxial anisotropy give rise to low-loss permeability or prominent resonance absorption in the frequency range from 100 MHz to a few gigahertz.…”

Section: Introductionmentioning

confidence: 99%

Soft magnetic properties and high frequency permeability in [CoAlO/oxide] multilayer films

Ma¹,

Ong²

2007

J. Phys. D: Appl. Phys.

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A CoAlO thin film was found to have good soft magnetic properties and gigahertz frequency response when it had a thickness of tens of nanometres. Increasing the thickness by more than 100 nm rapidly increased the coercivity and seriously degraded the high frequency response. A multilayering technique (laminating the magnetic layer with oxide spacers) was exploited to improve the magnetic properties in thick films. AlOx and SiOx were used as the oxide spacing layers in this experiment. For the 105 nm CoAlO films, the easy and hard axis coercivities were reduced by more than 8 times by introducing 2 nm AlOx or 5 nm SiOx spacers. With our optimum lamination [CoAlO (52.5 nm)/AlOx (2 nm)]7, good soft magnetic properties (easy and hard axis coercivities: 21 and 14 Oe and effective anisotropy field: 54 Oe) and high frequency response (real permeability: >200 up to ∼2 GHz) were successfully obtained in a multilayer film at a thickness of 380 nm. The changes in the microstructures and film stress with the introduction of the oxide spacers are discussed in this paper.

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A novel macro-model for spin-transfer-torque based magnetic-tunnel-junction elements

Lee

Kim

et al. 2010

Solid-State Electronics

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1.8-V nanospeed R/W module for 64-kB cross-point cell magnetic random access memory

Cited by 9 publications

References 5 publications

Structure and Magnetic Properties Investigation of CoZr and CoZrN Thin Films

Structure and Magnetic Properties Investigation of CoZr and CoZrN Thin Films

Soft magnetic properties and high frequency permeability in [CoAlO/oxide] multilayer films

A novel macro-model for spin-transfer-torque based magnetic-tunnel-junction elements

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