Permanent charged domain walls under tip poling engineering

2021 ◽  
Author(s):  
Wenping Geng ◽  
Xiaojun Qiao ◽  
Jinlong He ◽  
Linyu Mei ◽  
Kaixi Bi ◽  
...  
Keyword(s):  
Domain Walls ◽  
High Density ◽  
Information Storage ◽  
Tunable Properties

Charged domain walls (CDWs) have attracted considerable attention owing to their tunable properties corresponding to high-density information storage and nanoelectronics devices. The excellent time endurance of conductivity is in an...

Photo-induced variation of magnetism in coordination polymers with ligand-based electron transfer

2021 ◽  
Author(s):  
Yan-Lei Lu ◽  
Wen-Long Lan ◽  
Wei Shi ◽  
Qionghua Jin ◽  
Peng Cheng
Keyword(s):  
Electron Transfer ◽  
Coordination Polymers ◽  
Optical Memory ◽  
High Density ◽  
Information Storage ◽  
Memory Devices ◽  
Storage Materials ◽  
Potential Applications ◽  
Induced Variation

Photo-induced variation of magnetism from ligand-based electron transfer have been extensively studied because of their potential applications in magneto-optical memory devices, light-responsive switches, and high-density information storage materials. In this...

ORGANIC SPINTRONICS: PAST, PRESENT AND FUTURE

SPIN ◽  
2014 ◽  
Vol 04 (02) ◽  
pp. 1440013 ◽  
Author(s):  
XIAO-RONG LV ◽  
SHI-HENG LIANG ◽  
LING-LING TAO ◽  
XIU-FENG HAN
Keyword(s):  
Quantum Computing ◽  
Spin Injection ◽  
High Density ◽  
Information Storage ◽  
Important Process ◽  
Seamless Integration ◽  
Spintronic Devices ◽  
Organic Spintronics ◽  
Emerging Trends ◽  
Research Hotspots

Organic spintronics, extended the conventional spintronics with metals, oxides and semiconductors, has opened new routes to explore the important process of spin-injection, transport, manipulation and detection, holding significant promise of revolutionizing future spintronic applications in high density information storage, multi-functional devices, seamless integration, and quantum computing. Here we survey this fascinating field from some new viewpoints on research hotspots and emerging trends. The main achievements and challenges arising from spin injection and transport, in organic materials are highlighted, as well as prospects of novel organic spintronic devices are also emphasized.

scholarly journals Information storage in permalloy modulated magnetic nanowires

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Guidobeth Sáez ◽  
Pablo Díaz ◽  
Eduardo Cisternas ◽  
Eugenio E. Vogel ◽  
Juan Escrig
Keyword(s):  
Magnetic Material ◽  
Phase Diagram ◽  
Magnetic Fields ◽  
Domain Walls ◽  
Wire Diameter ◽  
Information Storage ◽  
Magnetic Nanowires ◽  
The Wire ◽  
The Stability ◽  
Cylindrical Wire

AbstractA long piece of magnetic material shaped as a central cylindrical wire (diameter $$d=50$$ d = 50 nm) with two wider coaxial cylindrical portions (diameter $$D=90$$ D = 90 nm and thickness $$t=100$$ t = 100 nm) defines a bimodulated nanowire. Micromagnetism is invoked to study the equilibrium energy of the system under the variations of the positions of the modulations along the wire. The system can be thought of as composed of five independent elements (3 segments and 2 modulations) leading to $$2^5=32$$ 2 5 = 32 possible different magnetic configurations, which will be later simplified to 4. We investigate the stability of the configurations depending on the positions of the modulations. The relative chirality of the modulations has negligible contributions to the energy and they have no effect on the stability of the stored configuration. However, the modulations are extremely important in pinning the domain walls that lead to consider each segment as independent from the rest. A phase diagram reporting the stability of the inscribed magnetic configurations is produced. The stability of the system was then tested under the action of external magnetic fields and it was found that more than 50 mT are necessary to alter the inscribed information. The main purpose of this paper is to find whether a prototype like this can be complemented to be used as a magnetic key or to store information in the form of firmware. Present results indicate that both possibilities are feasible.

Application of inorganic resists in high-density information storage technologies

1995 ◽  
Author(s):  
Ivan Z. Indutnyi ◽  
Sergey A. Kostyukevych ◽  
Victor I. Minko ◽  
Peter E. Shepeljavi ◽  
Alexander V. Stronski
Keyword(s):  
High Density ◽  
Information Storage ◽  
Storage Technologies

Two-Photon Three-Dimensional Optical Storage of a New Photobleaching Material

2012 ◽  
Vol 532-533 ◽  
pp. 8-11
Author(s):  
Jian Wen Cai
Keyword(s):  
Data Storage ◽  
Three Dimensional ◽  
Optical Storage ◽  
Optical Data Storage ◽  
High Density ◽  
Information Storage ◽  
Optical Data ◽  
Optical Information ◽  
Two Photon ◽  
Optical Information Storage

Two-photon three-dimensional optical data storage is an important method to realize high density storage and ultra-high density storage. This paper introduces the the basic principle of two-photon photobleaching optical storage, describes two-photon three-dimensional optical storage system and the absorption and fluorescence spectra of a new type of photobleaching materials BASF in detail, carries out the experimental study that two-photon information is written and read out against a new photobleaching material of BASF using femtosecond pulse laser wavelength is 800nm, and realize two layers of optical information storage, the information point spacing is 8μm and the interlayer distance is 15μm; two-layer information point signal strength is recognized using Recognition algorithm. The experiment proved that new photobleaching material of BASF can be used for two-photon three-dimensional optical storage, that has laid a solid foundation for the high-density and ultra-high density optical information storage materials research.

Magnetic Microstructure of Thin Films and Surfaces: Exploiting Spin-Polarized Electrons in the SEM and STM

1989 ◽  
Vol 151 ◽  
Author(s):  
D. T. Pierce ◽  
M. R. Scheinfein ◽  
J. Unguris ◽  
R. J. Celotta
Keyword(s):  
Sample Preparation ◽  
Domain Walls ◽  
Domain Boundary ◽  
Physical Structure ◽  
Information Storage ◽  
Polarized Electrons ◽  
Fundamental Interest ◽  
Magnetic Microstructure ◽  
Spin Polarized ◽  
Device Applications

ABSTRACTMagnetic microstructure, that is the configuration of domains and domain walls in a magnetic material, is of both fundamental interest and of crucial importance for device applications. For example, the ultimate density of magnetic information storage is limited by the sharpness of a domain boundary. The magnetic microstructure of a thin film or surface depends sensitively on its physical structure which is strongly affected by sample preparation or growth. High resolution magnetization imaging is necessary to determine the domain configuration that occurs for a particular sample preparation and the changes that take place under external perturbations such as applied magnetic field, stress or temperature.

Advances in magnetic tapes for high density information storage

1995 ◽  
Vol 31 (6) ◽  
pp. 2883-2888 ◽  
Author(s):  
H.J. Richter ◽  
R.J. Veitch
Keyword(s):  
High Density ◽  
Information Storage

scholarly journals THE DIRECT OBSERVATION OF MAGNETISATION REVERSAL IN FILMS OF INTEREST FOR HIGH DENSITY INFORMATION STORAGE

1998 ◽  
Vol 22 (S_2_MORIS_97) ◽  
pp. S2_15-20 ◽  
Author(s):  
J N Chapman ◽  
J Rose ◽  
I S Weir ◽  
I S Molchanov ◽  
D M Titterington
Keyword(s):  
Direct Observation ◽  
High Density ◽  
Information Storage

scholarly journals Optically controlled large-coercivity room-temperature thin-film magnets

2021 ◽  
Author(s):  
Anish Philip ◽  
Yifan Zhou ◽  
Girish Tewari ◽  
Sebastiaan Van Dijken ◽  
Maarit Karppinen
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Room Temperature ◽  
High Density ◽  
Information Storage ◽  
New Horizons ◽  
Hard Magnets

Photo-controlled room-temperature hard magnets could open new horizons for high-density information storage. For this, the material should be fabricated as device-integrable (conformal, stretchable, transparent, etc.) thin films and preferably from...

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