scholarly journals The role of internal structure in the anomalous switching dynamics of metal-oxide/polymer resistive random access memories

2013 ◽  
Vol 113 (13) ◽  
pp. 134504 ◽  
Author(s):  
Paulo R. F. Rocha ◽  
Asal Kiazadeh ◽  
Dago M. De Leeuw ◽  
Stefan C. J. Meskers ◽  
Frank Verbakel ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Internal Structure ◽  
Random Access ◽  
Switching Dynamics

Role of Anode on Resistance Switching Phenomenon of Metal Oxide Resistive Random Access Memory

2015 ◽  
Vol 1805 ◽  
Author(s):  
Kentaro Kinoshita ◽  
Sang-Gyu Koh ◽  
Takumi Moriyama ◽  
Satoru Kishida
Keyword(s):  
Metal Oxide ◽  
Cell Structure ◽  
Random Access ◽  
Theoretical Models ◽  
Resistive Random Access Memory ◽  
Electrode Structure ◽  
Switching Phenomenon ◽  
Afm Cantilever ◽  
Electrode Metal

ABSTRACTAlthough the presence of oxygen reservoir is assumed in many theoretical models which explain resistive switching of ReRAM with an electrode/metal oxide (MO)/electrode structure, the location of oxygen reservoir is not clear. We have previously reported a method for preparing an extremely small ReRAM cell which has removable bottom electrode (BE), by using AFM cantilever. In this study, we used this cell structure to specify the location of oxygen reservoir. Since an anode is assumed to work as an oxygen reservoir in most models, we investigated the effect of changing anodes for the same filament on the presence or absence of the occurrence of reset switching. It was revealed that reset occurred independently of catalytic ability and Gibbs free energy (ΔG) of anode material. However, reset was caused by repairing oxygen vacancies of which filament consists when metals with high ΔG is used as an anode, whereas by oxidizing an anode when metals with low ΔG is used as an anode. This result suggests that the MO film works as an oxygen reservoir for anode with high ΔG, whereas an anode works as an oxygen reservoir for anode with low ΔG.

Zeit und gutes Leben

2020 ◽  
Vol 74 (4) ◽  
pp. 493-513
Author(s):  
Holmer Steinfath
Keyword(s):  
Internal Structure ◽  
Good Life ◽  
External Factor ◽  
Life Time ◽  
The Good Life ◽  
Adequate Understanding ◽  
Gutes Leben

Time is a neglected subject in recent, especially analytically minded reflections on the good life. The article highlights the fundamental role of time and temporality for an adequate understanding of the good life. Time functions both as an external factor with which we have to reckon in our practical deliberations and as an internal structure of living our lives. It is argued that striving for a good life also means striving for being in harmony with the time of one's life. The exploration of this idea allows to link analytical with phenomenological approaches to time and good life.

Arena Expansion and the Transnationalization of Business Advocacy

2018 ◽  
Author(s):  
Abraham L. Newman ◽  
Elliot Posner
Keyword(s):  
Internal Structure ◽  
International Finance ◽  
Financial Regulation ◽  
Banking Regulation ◽  
Great Powers ◽  
Soft Law ◽  
Financial Industry ◽  
Individual Industry ◽  
Industry Associations

Chapter 5 shifts the focus from soft law’s effects on great powers to its impact on influential business groups. It argues that by expanding arenas of contestation to the transnational level, soft law transforms business representation as well as individual industry associations. The chapter’s empirical focus is on banking regulation from the 1980s to the 2000s. Much of the literature on transnational banking standards centers on the role of industry associations and, in particular, on the Institute of International Finance. In this chapter, the authors explain the rise of direct industry participation in and influence over Basel-based standard setting. They show that the orientation and priorities of the IIF as well as its membership and internal structure were deeply conditioned by 1980s international soft law. The IIF’s transformation subsequently set off a series of changes to the ecology of financial industry associations and the politics of financial regulation.

scholarly journals Conversion of Methanol on Rutile TiO2 (110) and Tungsten Oxide Clusters: 2. The Role of Defects and Electron Transfer in Bifunctional Oxidic Photocatalysts

2021 ◽  
Author(s):  
Lars Mohrhusen ◽  
Jessica Kräuter ◽  
Katharina Al-Shamery
Keyword(s):  
Electron Transfer ◽  
Transition Metal ◽  
Metal Oxide ◽  
Tungsten Oxide ◽  
Organic Compounds ◽  
Uv Irradiation ◽  
Organic P ◽  
Rutile Tio2 ◽  
Metal Oxide Surfaces

The photochemical conversion of organic compounds on tailored transition metal oxide surfaces by (UV) irradiation has found wide applications ranging from the production of chemicals to the degradation of organic...

scholarly journals Route towards efficient magnetization reversal driven by voltage control of magnetic anisotropy

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Roxana-Alina One ◽  
Hélène Béa ◽  
Sever Mican ◽  
Marius Joldos ◽  
Pedro Brandão Veiga ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Random Access ◽  
Low Power Consumption ◽  
Surface Anisotropy ◽  
Magnetization Dynamics ◽  
Storage Density ◽  
Switching Regime ◽  
Major Interest ◽  
Out Of Plane

AbstractThe voltage controlled magnetic anisotropy (VCMA) becomes a subject of major interest for spintronics due to its promising potential outcome: fast magnetization manipulation in magnetoresistive random access memories with enhanced storage density and very low power consumption. Using a macrospin approach, we carried out a thorough analysis of the role of the VCMA on the magnetization dynamics of nanostructures with out-of-plane magnetic anisotropy. Diagrams of the magnetization switching have been computed depending on the material and experiment parameters (surface anisotropy, Gilbert damping, duration/amplitude of electric and magnetic field pulses) thus allowing predictive sets of parameters for optimum switching experiments. Two characteristic times of the trajectory of the magnetization were analyzed analytically and numerically setting a lower limit for the duration of the pulses. An interesting switching regime has been identified where the precessional reversal of magnetization does not depend on the voltage pulse duration. This represents a promising path for the magnetization control by VCMA with enhanced versatility.

Prebiotic studies on the interaction of zirconia nanoparticles and ribose nucleotides and their role in chemical evolution

2021 ◽  
Vol 20 (2) ◽  
pp. 142-149
Author(s):  
Avnish Kumar Arora ◽  
Pankaj Kumar
Keyword(s):  
Electron Microscopy ◽  
Metal Oxide ◽  
Metal Oxides ◽  
Chemical Evolution ◽  
Ribonucleic Acid ◽  
Zirconium Oxide ◽  
Origins Of Life ◽  
Neutral Ph ◽  
Interaction Studies

AbstractStudies on the interaction of biomolecules with inorganic compounds, mainly mineral surfaces, are of great concern in identifying their role in chemical evolution and origins of life. Metal oxides are the major constituents of earth and earth-like planets. Hence, studies on the interaction of biomolecules with these minerals are the point of concern for the study of the emergence of life on different planets. Zirconium oxide is one of the metal oxides present in earth's crust as it is a part of several types of rocks found in sandy areas such as beaches and riverbeds, e.g. pebbles of baddeleyite. Different metal oxides have been studied for their role in chemical evolution but no studies have been reported about the role of zirconium oxide in chemical evolution and origins of life. Therefore, studies were carried out on the interaction of ribonucleic acid constituents, 5′-CMP (cytidine monophosphate), 5′-UMP (uridine monophosphate), 5′-GMP (guanosine monophosphate) and 5′-AMP (adenosine monophosphate), with zirconium oxide. Synthesized zirconium oxide particles were characterized by using vibrating sample magnetometer, X-Ray Diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy. Zirconia particles were in the nanometre range, from 14 to 27 nm. The interaction of zirconium oxide with ribonucleic acid constituents was performed in the concentration range of 5 × 10−5–300 × 10−5 M. Interaction studies were carried out in three mediums; acidic (pH 4.0), neutral (pH 7.0) and basic (pH 9.0). At neutral pH, maximum interaction was observed. The interaction of zirconium oxide with 5′-UMP was 49.45% and with 5′-CMP 67.98%, while with others it was in between. Interaction studies were Langmurian in nature. Xm and KL values were calculated. Infrared spectral studies of ribonucleotides, metal oxide and ribonucleotide–metal oxide adducts were carried out to find out the interactive sites. It was observed that the nitrogen base and phosphate moiety of ribonucleotides interact with the positive charge surface of metal oxide. SEM was also carried out to study the adsorption. The results of the present study favour the important role of zirconium oxide in concentrating the organic molecules from their dilute aqueous solutions in primeval seas.

Anomalous narrowing of the shape of the structural process in derivatives of trehalose at high pressure. The role of the internal structure

2021 ◽  
pp. 116321
Author(s):  
Dawid Heczko ◽  
Joanna Grelska ◽  
Karolina Jurkiewicz ◽  
Patrycja Spychalska ◽  
Anna Kasprzycka ◽  
...  
Keyword(s):  
High Pressure ◽  
Internal Structure ◽  
Structural Process ◽  
Derivatives Of

scholarly journals Anti-migrant Islamophobia in Europe. Social roots, mechanisms and actors

2018 ◽  
Vol 26 (53) ◽  
pp. 25-40
Author(s):  
Fabio Perocco
Keyword(s):  
Mass Media ◽  
Internal Structure ◽  
Social Inequalities ◽  
Social Origins ◽  
Far Right ◽  
Social Actors ◽  
Muslim Immigrants ◽  
The Social ◽  
The Mass Media

Abstract During the last two decades of rising anti-migrant racism in Europe, Islamophobia has proven to be the highest, most acute, and widely spread form of racism. The article shows how anti-migrant Islamophobia is a structural phenomenon in European societies and how its internal structure has specific social roots and mechanisms of functioning. Such an articulate and interdependent set of key themes, policies, practices, discourses, and social actors it is intended to inferiorise and marginalise Muslim immigrants while legitimising and reproducing social inequalities affecting the majority of them. The article examines the social origins of anti-migrant Islamophobia and the modes and mechanisms through which it naturalises inequalities; it focuses on the main social actors involved in its production, specifically on the role of some collective subjects as anti-Muslim organizations and movements, far-right parties, best-selling authors, and the mass-media.

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