scholarly journals Cooperative phenomenon in a rippled graphene: Chiral spin guide

2015 ◽  
Vol 92 (20) ◽  
Author(s):  
M. Pudlak ◽  
K. N. Pichugin ◽  
R. G. Nazmitdinov
2020 ◽  
Vol 7 ◽  
pp. 100042
Author(s):  
Enhui Sun ◽  
Jinliang Xu ◽  
Mingjia Li ◽  
Hangning Li ◽  
Chao Liu ◽  
...  

1995 ◽  
Vol 30 (3) ◽  
pp. 145-150 ◽  
Author(s):  
D Gandolfo ◽  
J Ruiz ◽  
F Thibaudau ◽  
V. A Zagrebnov

2020 ◽  
pp. 105971232096184
Author(s):  
Anika Fiebich

In this article, I aim to elucidate minimality in cooperation by drawing on a previously developed multi-dimensional approach to cooperation. This approach provides a useful framework to locate any cooperative phenomenon at a specific point on the continua of different dimensions. That point, in turn, determines the criteria for a particular cooperative phenomenon to emerge. Thus, on one hand, the analysis provides a contribution to the philosophical debate on minimal cooperation by elucidating different kinds of minimalism in cooperation that are characterized by the lowest point of the continua of either dimension, including (1) cognitive minimalism, (2) behavioural minimalism, (3) affective minimalism, (4) social minimalism and (5) contextual minimalism. On the other hand, it facilitates the dialogue among disciplines insofar as it helps determining whether the skills and capacities that are required for particular cooperative activities (e.g. cooperative games like the Joint Simon task or the prisoner’s dilemma) are not only present in typically developing individuals but also individuals with developmental disorders like autism. Drawing on an externalist/internalist distinction, the analysis shows that high-functioning individuals with autism perform particularly well in cooperative activities that amount to externalism and are highly defined by an institutional context, social rules and regularities as well as the roles of the agents.


2004 ◽  
Vol 59 (10) ◽  
pp. 1114-1117 ◽  
Author(s):  
Guido J. Reiß ◽  
Judith S. Engel

AbstractThe reaction of 1,9-diaminononane with hydroiodic acid in the presence of iodine gave a compound best described as 1,9-diammoniononane bis-triiodide iodine, (H3N-(CH2)9-NH3)[I3]2 · I2. The structure is built from two crystallographically independent I3− anions, which are connected via secondary I···I interactions to the iodine molecules, and the 1,9-diammonioalkane cations are connected via weak hydrogen bonds to neighbouring iodine atoms. By a cooperative phenomenon, the shape and the functionality of the cation lead to a solid state structure that includes a polyiodide substructure with the formula 2∞[I8]2− or 2∞[I3 · I2 · I3]2−, is best described as a brick-shaped layered array. Its rectangular pores fit excellently with the hydrogen bonding functionality as well as with the conformational needs of the 1,9-diammoniononane template. The Raman spectrum shows typical bands of coordinated triiodide anions and iodine molecules. The thermal analysis (DSC/TG) of the title compound indicates decomposition at temperatures above 210°C.


MRS Bulletin ◽  
1999 ◽  
Vol 24 (8) ◽  
pp. 20-24 ◽  
Author(s):  
F.J. Himpsel ◽  
T. Jung ◽  
A. Kirakosian ◽  
J.-L. Lin ◽  
D.Y. Petrovykh ◽  
...  

Recent advances in the control of thin films and surfaces have brought an intriguing question within reach: Is it possible to tailor the electronic properties of solids by controlling them layer by layer or row by row? Customized molecules are commonplace in biochemistry. Can the same idea be brought to bear on solids and electronic materials? Electronic properties of semiconductor devices have been controlled by hetero-structures, quantum wells, and super-lattices. Magnetism as a cooperative phenomenon lends itself to manipulation in small structures, where neighbor atoms can be replaced systematically by species with stronger or weaker magnetism. In fact, a class of magnetic/nonmagnetic multilayers termed spin valves has recently been introduced into commercial read heads for magnetically stored data. The optimum thickness of their active region lies in the single-digit-nanometer regime.The smallest nanostructures may be viewed as objects consisting only of interfaces with no bulk behind them. More typically, single-digit-nanometer dimensions are sufficient for realizing the benefits of structuring (e.g., operating a quantum-well device at room temperature). This regime is difficult to reach with lithography methods, particularly when macroscopic amounts are to be fabricated. Self-assembly becomes the method of choice.


Sign in / Sign up

Export Citation Format

Share Document