Results 171 to 180 of about 3,505 (307)

Long‐Range Coordination Environment Modulates Single‐Atom Local States and Systemic Impact on CO2 Photoconversion

open access: yesAdvanced Functional Materials, EarlyView.
Terminal groups on Cu porphyrins modulate the electronic states of single‐atom Cu centers through a long‐range electronic effect, without altering the Cu coordination geometry. Meanwhile, a multi‐descriptor framework is established that incorporates porphyrin regulation, hybrid catalyst properties, and CO2 photoreduction capabilities.
Yi Zhang   +13 more
wiley   +1 more source

Part II: Spacetime Algebra of Dirac Spinors

open access: yes, 2015
In Part I: Vector Analysis of Spinors, the author studied the geometry of two component spinors as points on the Riemann sphere in the geometric algebra G3 of three dimensional Euclidean space. Here, these ideas are generalized to apply to four component
Garret Sobczyk
core  

Unraveling the Electronic Structure of Silicon Vacancy Centers in 4H‐SiC

open access: yesAdvanced Functional Materials, EarlyView.
The electronic structure of the silicon vacancy in 4H‐SiC is probed via transient absorption spectroscopy, uncovering previously inaccessible excited states of the quartet and doublet spin channels, including the V2' transition. In combination with theoretical analysis, a comprehensive picture of the electronic structure is established.
Ali Tayefeh Younesi   +9 more
wiley   +1 more source

On some Properties of Generalized Tribonacci Spinors

open access: yes
Spinors are used in physics quite extensively. The goal of this study is also the spinor structure lying in the basis of the quaternion algebra. In this paper, first, we have introduced spinors mathematically.
Cerda-Morales, Gamaliel
core  

A product for harmonic spinors on reductive homogeneous spaces

open access: yes, 2008
We define a product for harmonic spinors on reductive homogeneous spaces. We give also some examples where harmonic spinors with coefficients in a module are expressed as a linear combination of products of harmonic spinors with coefficients in two other
Parthasarathy, Rajagopalan, Mehdi, Salah
core  

Chiral Phase Change Nanomaterials

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates reversible, non‐volatile phase transitions in chiral Ge2${\rm Ge}_2$Sb2${\rm Sb}_2$Te5${\rm Te}_5$ (GST) nanohelices for high‐speed optical modulation of chirality and dynamic control of the state of polarization (SOP). The chiral nanostructures are fabricated using a highly directional, wafer‐scale physical vapor deposition ...
Joshua A. Burrow   +11 more
wiley   +1 more source

3D Supergravity in the Batalin-Vilkovisky Formalism. [PDF]

open access: yesAnn Henri Poincare
Cattaneo AS, Moshayedi N, Funcasta AS.
europepmc   +1 more source

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