Results 71 to 80 of about 71,268 (259)

Electric Field Modulation of Interlayer Coupling via Piezostrain in a Synthetic Antiferromagnet

Advanced Science, EarlyView.
Controlling the interlayer exchange coupling (IEC) in synthetic antiferromagnets (SAFs) using an electric field is a promising route toward energy‐efficient spintronic devices. In this study, electric field induced‐strain modulation of IEC in Co/Ru/Co SAF/PMN‐PT is demonstrated.
Yuichi Hisada, Sachio Komori, Keiichiro Imura, Chenyu Shen, Yoshihiro Gohda, Calvin Ching Ian Ang, Wen Siang Lew, Tomoyasu Taniyama   +7 more
wiley   +1 more source

Sketching a proof of the Maldacena conjecture at small radius

Journal of High Energy Physics, 2019
At small AdS radius, the superstring on AdS 5 × S 5 was conjectured by Maldacena to be equivalent to N $$ \mathcal{N} $$ = 4 super-Yang-Mills at small ‘t Hooft coupling where thickened Feynman diagrams can be used to compute scattering amplitudes. It was
Nathan Berkovits
doaj   +1 more source

The natural explanation of the muon anomalous magnetic moment via the electroweak supersymmetry from the GmSUGRA in the MSSM

Physics Letters B, 2022
The Fermi-Lab Collaboration has announced the results for the measurement of muon anomalous magnetic moment. Combining with the previous results by the BNL experiment, we have 4.2σ deviation from the Standard Model (SM), which strongly implies the new ...
Waqas Ahmed, Imtiaz Khan, Jinmian Li, Tianjun Li, Shabbar Raza, Wenxing Zhang   +5 more
doaj   +1 more source

From Hurwitz numbers to Feynman diagrams: counting rooted trees in log gravity [PDF]

, 2022
Yannick Mvondo-She
openalex   +1 more source

Defect‐Free Sb‐Doping in Bi2O2Se Achieves Two‐Order‐of‐Magnitude Reduction in Saturation Intensity While Preserving High Carrier Mobility

Advanced Science, EarlyView.
This study demonstrates defect‐free states Sb3⁺ doping in Bi2O2Se, enhancing carrier mobility while reducing saturation intensity by about two orders of magnitude. First‐principles calculations and experiments reveal optimized electronic structure and improved nonlinear response.
Qingling Tang, Zhongben Pan, Hongwei Chu, Han Pan, Dechun Li   +4 more
wiley   +1 more source

Reshetikhin's Formula for the Jones Polynomial of a Link: Feynman diagrams and Milnor's Linking Numbers

, 1994
We use Feynman diagrams to prove a formula for the Jones polynomial of a link derived recently by N.~Reshetikhin. This formula presents the colored Jones polynomial as an integral over the coadjoint orbits corresponding to the representations assigned to
L. Rozansky, Porter R., Turaev V.
core   +1 more source

Pressure Effects on Monolayer FeCl2: Above‐Room‐Temperature Ferromagnetism with In‐Plane Electric Polarization and Interface‐Free Magnetic Tunnel Junctions

Advanced Electronic Materials, EarlyView.
We investigate the influence of hydrostatic pressure on the physical properties of monolayer FeCl2${\rm FeCl}_2$ for spintronics applications. A phase transition from a ferromagnetic half‐metal to a ferromagnetic semiconductor is unveiled at 4.6 GPa, accompanied by a transition from a non‐polar (1T) to a polar (1H) structure.
Shubham Tyagi, Paresh C. Rout, Shubham Singh, Udo Schwingenschlögl   +3 more
wiley   +1 more source

Package for Calculations and Simplifications of Expressions with Dirac Matrixes (MatrixExp)

, 2005
This paper describes a package for calculations of expressions with Dirac matrixes. Advantages to existing similar packages are described. MatrixExp package is intended for simplification of complex expressions involving $\gamma$-matrixes, providing such
Akyeampong, Akyeampong, Akyeampong, Bonneau, Bonneau, Breitenlohner, Buras, Char, Greub, Greub, Jamin, t'Hooft, V.A. Poghosyan, Wolfram   +13 more
core   +2 more sources

Matrix Theory and Feynman Diagrams [PDF]

Fortschritte der Physik, 1999
We briefly review the computation of graviton and antisymmetric tensor scattering amplitudes in Matrix Theory from a diagramatic S-Matrix point of view.
Plefka, J, Serone, Marco, Waldron, A.
openaire   +5 more sources

Integrated Experimental and Theoretical Insights into Defect‐Induced Functionalities of Cobalt Doped NiO for Multifunctional Solar‐Driven Applications

Advanced Energy and Sustainability Research, EarlyView.
Rational defect engineering in Co‐doped NiO nanostructures, synthesized via a sustainable green route, enables precise bandgap modulation and defect‐state tailoring. Combined experimental–density functional theory analysis identifies 15% Co doping as the optimal threshold for maximizing photocatalytic degradation, photothermal response, and hydrogen ...
Sumayya M. Ansari, Hessa Alashkhari, Meira Alabdouli, Zahra Alzadjali, Sara Almuhairi, Narender Kumar, Naveen Kosar, Tariq Mahmood, Adnan Younis   +8 more
wiley   +1 more source