scholarly journals Role of the superexchange interaction in magnetic transition and polaron crossover

2004 ◽  
Vol 348 (1-4) ◽  
pp. 89-94
Author(s):  
Jayita Chatterjee ◽  
A.N. Das
Keyword(s):  
Magnetic Transition ◽  
Superexchange Interaction

Role of Superexchange Interaction on Tuning of Ni/Li Disordering in Layered Li(NixMnyCoz)O2

2017 ◽  
Vol 8 (22) ◽  
pp. 5537-5542 ◽  
Author(s):  
Jiaxin Zheng ◽  
Gaofeng Teng ◽  
Chao Xin ◽  
Zengqing Zhuo ◽  
Jiajie Liu ◽  
...  
Keyword(s):  
Superexchange Interaction

scholarly journals Superexchange interaction revisited: the role of theA-site cations inACuO3(A=Se, Te)

2010 ◽  
Vol 12 (7) ◽  
pp. 073023 ◽  
Author(s):  
Beom Hyun Kim ◽  
Hongchul Choi ◽  
B I Min
Keyword(s):  
Superexchange Interaction

scholarly journals Chiral intertwined spirals and magnetic transition dipole moments dictated by cylinder helicity

2017 ◽  
Vol 114 (50) ◽  
pp. 13097-13101 ◽  
Author(s):  
Sota Sato ◽  
Asami Yoshii ◽  
Satsuki Takahashi ◽  
Seiichi Furumi ◽  
Masayuki Takeuchi ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Double Helix ◽  
Dipole Moments ◽  
Magnetic Transition ◽  
Transition Dipole ◽  
Helical Carbon Nanotubes ◽  
Transition Dipole Moments ◽  
Theoretical Investigations ◽  
Polarized Luminescence

The presence of anomalous chirality in a roll of graphitic carbon sheets has been recognized since the discovery of carbon nanotubes, which are becoming available in higher quantities through the isolation of chiral single-wall congeners with high purity. Exploration of the properties arising from cylinder chirality is expected to expand the scope of tubular entities in the future. By studying molecular fragments of helical carbon nanotubes, we herein reveal interesting properties that arise from this chirality. The chirality of nanoscale cylinders resulted in chirality of larger dimensions in the form of a double-helix assembly. Cylinder chirality in solution gave rise to a large dissymmetry factor of metal-free entities in circular polarized luminescence. Theoretical investigations revealed the pivotal role of cylindrical shapes in enhancing magnetic dipole transition moments to yield extreme rotatory strength. Unique effects of cylinder chirality in this study may prompt the development of tubular entities, for instance, toward chiroptical applications.

The Reconstructive Crystal Structure and the Exchange Energy

2006 ◽  
Vol 966 ◽  
Author(s):  
Ahmad Yazdani ◽  
Reza Osati Araghi ◽  
Farid Arya
Keyword(s):  
Electrical Resistivity ◽  
Magnetic Transition ◽  
Resistivity Measurement ◽  
Stable State ◽  
Electrical Resistivity Measurement ◽  
X Ray ◽  
Resistivity Measurements ◽  
Pattern Change ◽  
Field Independent

ABSTRACTIn order to describe the role of temperature variation on suppress of broad range of magnetic transition, the effect of annealing on different samples of a Gd-based intermetallic compound (i.e., Gd2Au) is investigated. The X-ray, AC and D.C susceptibility and electrical resistivity measurements for different annealed samples revealed that: (i) A great exchange dispersion is observed in A.C susceptibility (ii) This unstable exchange can be stabilized at certain annealing temperature, where the short rang unstable Ferromagnetic (F.M) breaks down or even changes to an Antiferromagnetic (AF.M) stable state. (iii) The DC susceptibility shows a spin-glass like transition temperature at TN= 61 K, above which the compound exhibits a completely paramagnetic (P.M) behavior and is field independent. (iv) the iso-termal magnetization does not follow the field induced transition (F.I.T) and behaves completely as a paramagnet which is independent of the field up to the highest available fields. The electrical resistivity measurement shows: a) A pronounced sharp bend at TN=61 K is manifested in ρ(T). b)some strong peak of X-ray pattern change into double adjacent lines in some intervals of low temperatures

Role of dactinomycin in the improved survival of children with Wilms' tumor

JAMA ◽  
1966 ◽  
Vol 195 (12) ◽  
pp. 1005-1009 ◽  
Author(s):  
D. J. Fernbach
Keyword(s):  
Wilms Tumor

Role of the allergist in diagnosis and management of patients with uveitis

JAMA ◽  
1966 ◽  
Vol 195 (3) ◽  
pp. 167-172 ◽  
Author(s):  
T. E. Van Metre
Keyword(s):  
Diagnosis And Management

The power of norms to sway fused group members

2018 ◽  
Vol 41 ◽  
Author(s):  
Winnifred R. Louis ◽  
Craig McGarty ◽  
Emma F. Thomas ◽  
Catherine E. Amiot ◽  
Fathali M. Moghaddam
Keyword(s):  
Evolutionary Anthropology ◽  
Normative Systems ◽  
Violent Extremism ◽  
Identity Fusion ◽  
Group Members

AbstractWhitehouse adapts insights from evolutionary anthropology to interpret extreme self-sacrifice through the concept of identity fusion. The model neglects the role of normative systems in shaping behaviors, especially in relation to violent extremism. In peaceful groups, increasing fusion will actually decrease extremism. Groups collectively appraise threats and opportunities, actively debate action options, and rarely choose violence toward self or others.

Elaborating the role of reflection and individual differences in the study of folk-economic beliefs

2018 ◽  
Vol 41 ◽  
Author(s):  
Kevin Arceneaux
Keyword(s):  
Decision Making ◽  
Individual Differences ◽  
Cognitive Processes ◽  
Evolutionary History ◽  
Behavioral Responses ◽  
History Of ◽  
Economic Beliefs

AbstractIntuitions guide decision-making, and looking to the evolutionary history of humans illuminates why some behavioral responses are more intuitive than others. Yet a place remains for cognitive processes to second-guess intuitive responses – that is, to be reflective – and individual differences abound in automatic, intuitive processing as well.

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