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...

Photochromism and photoswitchable luminescence in a Zn7 cluster-based metal-organic framework with organic guest

2021 ◽  
Author(s):  
Jian-Jun Liu ◽  
Jia-Jia Fu ◽  
Teng Liu ◽  
Chixian He ◽  
Feixiang Cheng
Keyword(s):  
Metal Organic Framework ◽  
Optical Memory ◽  
Memory Devices ◽  
Potential Applications ◽  
Metal Organic ◽  
Photochromic Materials ◽  
Organic Framework

Photochromic materials coupled with the photoswitchable luminescence functionalities are of particular interest due to their potential applications in switches and optical memory devices. However, construct such materials, especially those with...

Surface Modifications on Charge-Transfer Complexes Using Scanning Probe Microscopy

1993 ◽  
Vol 311 ◽  
Author(s):  
Shoji Yamaguchi ◽  
Carlos A. Valenzuela ◽  
Richard S. Potember
Keyword(s):  
Phase Transition ◽  
Charge Transfer ◽  
Optical Switching ◽  
Optical Memory ◽  
Optical Microscope ◽  
High Density ◽  
Information Storage ◽  
Charge Transfer Complexes ◽  
Charge Transfer Reaction ◽  
Copper Salts

ABSTRACTWe are exploring high density information storage systems based on organometallic materials. Silver and copper salts of tetracyanoquinodimethane (TCNQ) and its derivatives exhibit an electrical and optical field induced reversible switching phenomenon. We have demonstrated a field-induced, charge-transfer reaction driven by the electric field at the STM tip when the field generated by the STM exceeds the switching threshold of the organic charge-transfer complex. The phase transition induced by the STM tip appears as nanometer-sized domains on the metal-TCNQ and derivatives surface. We also have shown this phase transition occur by means of optical laser irradiation. This paper discusses our plans to combine our research results in optical switching with the scanning near-field optical microscope (NSOM) to develop a very high density optical memory system. In order toassess the feasibility of this, we performed a series of experiments aimed at determining the limitations of information storage using this class of organic charge transfer complexes.

High-density Er-implanted GaN optical memory devices

2001 ◽  
Vol 40 (21) ◽  
pp. 3552 ◽  
Author(s):  
Boon K. Lee ◽  
Robert Chih-Jen Chi ◽  
David Liang-Chiun Chao ◽  
Ji Cheng ◽  
Irving Yeong-Ning Chry ◽  
...  
Keyword(s):  
Optical Memory ◽  
High Density ◽  
Memory Devices

Study of trivalent samarium ion embedded lithium‐based borate glass for high‐density optical memory devices

Luminescence ◽  
2020 ◽  
Vol 35 (5) ◽  
pp. 721-727
Author(s):  
Narasimsetti Srinivasa Rao ◽  
Megala Rajesh ◽  
Kumcham Prasad ◽  
Gutturu Rajasekhara Reddy ◽  
B. Deva Prasad Raju ◽  
...  
Keyword(s):  
Borate Glass ◽  
Optical Memory ◽  
High Density ◽  
Memory Devices

SrBi2Ta2O9 has only two polar axes – a problem for high density ferroelectric memory devices

2001 ◽  
Vol 119 (3) ◽  
pp. 117-119 ◽  
Author(s):  
K Franke ◽  
G Martin ◽  
M Weihnacht ◽  
A.V Sotnikov
Keyword(s):  
High Density ◽  
Memory Devices ◽  
Ferroelectric Memory

scholarly journals High-density Néel-type magnetic skyrmion phase stabilized at high temperature

2020 ◽  
Vol 12 (1) ◽  
Author(s):  
Hee Young Kwon ◽  
Kyung Mee Song ◽  
Juyoung Jeong ◽  
Ah-Yeon Lee ◽  
Seung-Young Park ◽  
...  
Keyword(s):  
High Temperature ◽  
High Density ◽  
Low Density ◽  
Memory Devices ◽  
Magnetic Multilayer ◽  
Multilayer Systems ◽  
Micromagnetic Simulations ◽  
Transmission Electron ◽  
Ultrahigh Density ◽  
Lorentz Transmission Electron Microscopy

AbstractThe discovery of a thermally stable, high-density magnetic skyrmion phase is a key prerequisite for realizing practical skyrmionic memory devices. In contrast to the typical low-density Néel-type skyrmions observed in technologically viable multilayer systems, with Lorentz transmission electron microscopy, we report the discovery of a high-density homochiral Néel-type skyrmion phase in magnetic multilayer structures that is stable at high temperatures up to 733 K (≈460 °C). Micromagnetic simulations reveal that a high-density skyrmion phase can be stabilized at high temperature by deliberately tuning the magnetic anisotropy, magnetic field, and temperature. The existence of the high-density skyrmion phase in a magnetic multilayer system raises the possibility of incorporating chiral Néel-type skyrmions in ultrahigh-density spin memory devices. Moreover, the existence of this phase at high temperature shows its thermal stability, demonstrating the potential for skyrmion devices operating in thermally challenging modern electronic chips.

Synthesis, designing strategies and photocatalytic charge dynamics of Metal-Organic Frameworks (MOFs): A catalyzed Photo-degradation approach towards Organic Dyes

2021 ◽  
Author(s):  
Ayushi Singh ◽  
Ashish Kumar Singh ◽  
Jian-Qiang Liu ◽  
Abhinav Kumar
Keyword(s):  
Small Molecule ◽  
Coordination Polymers ◽  
Organic Dyes ◽  
Metal Organic Frameworks ◽  
Gas Storage ◽  
New Variety ◽  
Photo Degradation ◽  
Charge Dynamics ◽  
Potential Applications ◽  
Metal Organic

Metal-organic frameworks (MOFs) or coordination polymers (CPs) are regarded as new variety of materials that find potential applications in plethora of areas such as gas/small molecule absorption/separation, gas storage, membranes...

Polymeric Thin Films for Electro-Optic Modulator and High Density Optical Memory Applications

1995 ◽  
Vol 392 ◽  
Author(s):  
Larry R. Dalton ◽  
Aaron W. Harper ◽  
Zhiyong Liang ◽  
Jingsong Zhu ◽  
Uzi Efron ◽  
...  
Keyword(s):  
Conformational Changes ◽  
Optical Waveguides ◽  
Optical Memory ◽  
High Density ◽  
Hole Burning ◽  
Spectral Hole Burning ◽  
Polymeric Thin Films ◽  
Buried Channel ◽  
Electro Optic ◽  
Memory Applications

AbstractChromophores capable of undergoing conformational changes when exposed to ultraviolet or visible light have been synthesized with functional groups permitting attachment to polymer matrices. One class of such chromophores, containing reactive functionalities at both ends of the chromophore, are referred to as double-end crosslinkable (DEC) chromophores. These chromophores are used in the synthesis of hardened nonlinear optically active lattices and in the fabrication of buried channel nonlinear optical waveguides by photoprocessing; development of such waveguides represents a critical step in the production of polymeric electro-optic modulators. Such chromophores are also crucial to the phenomena of laser-assisted poling (also known as photochemically-induced poling). Finally, these chromophores are attached to the surface of polystyrene beads permitting the realization of room temperature spectral hole burning exploiting morphology-dependent resonances. Such resonances provide the basis of wavelength coding for the development of high density optical memories.

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