Results 1 to 10 of about 35,068 (151)

Band Tailoring Enabled Perovskite Devices for X-Ray to Near-Infrared Photodetection. [PDF]

Adv Sci (Weinh)
Perovskite‐based photodetectors are improved for wide‐spectrum detection X‐rays to near‐infrared using a type‐II heterojunction with tellurium. This design reduces dark current noise and enhances sensitivity, with a scalable sensor array showing promise for imaging applications.
He YC, Dun GH, Deng J, Peng JL, Qin K, Zhang JH, Geng XS, Zhang MS, Wang ZS, Xie Y, Bai ZQ, Xie D, Tian H, Yang Y, Ren TL.   +14 more
europepmc   +2 more sources

On the Role of Torsion and Higher Forms in Off‐Shell Supergravity

Fortschritte der Physik, Volume 71, Issue 8-9, September 2023., 2023
Abstract The presence of a nonvanishing totally antisymmetric (super)torsion, equivalent to an axial vector, and higher forms in the “new minimal” and “old minimal” off‐shell formulations of N=1$\mathcal {N}=1$, D=4$D=4$ supergravity is elaborated. The geometric superspace approach and study both the geometric Lagrangian and the off‐shell closure of ...
Lucrezia Ravera
wiley   +1 more source

Enhancement of Out‐of‐Plane Spin–Orbit Torque by Interfacial Modification

Advanced Materials, Volume 35, Issue 12, March 23, 2023., 2023
The oxidation in CuPt/ferromagnet interface is found to be able to enhance the out‐of‐plane (OOP) torque and associated spin–orbit torque (SOT) switching efficiency with remaining threefold rotational symmetry. The enhancement is independent of the device shapes, magnetic materials, or magnetization easy axis.
Tieyang Zhao, Liang Liu, Chenghang Zhou, Zhenyi Zheng, Huihui Li, Qidong Xie, Bingqing Yao, Lizhu Ren, Jianwei Chai, Zhili Dong, Chao Zhao, Jingsheng Chen   +11 more
wiley   +1 more source

Mass Hierarchies and Quantum Gravity Constraints in DKMM‐refined KKLT

Fortschritte der Physik, Volume 71, Issue 1, January 2023., 2023
Abstract We carefully revisit the mass hierarchies for the KKLT scenario with an uplift term from an anti D3‐brane in a strongly warped throat. First, we derive the bound resulting from what is usually termed “the throat fitting into the bulk” directly from the Klebanov‐Strassler geometry.
Ralph Blumenhagen, Aleksandar Gligovic, Seyf Kaddachi   +2 more
wiley   +1 more source

Exceptional Algebroids and Type IIA Superstrings

Fortschritte der Physik, Volume 70, Issue 6, June 2022., 2022
Abstract We study exceptional algebroids in the context of warped compactifications of type IIA string theory down to n dimensions, with n≤6$n\le 6$. In contrast to the M‐theory and type IIB case, the relevant algebroids are no longer exact, and their locali moduli space is no longer trivial, but has 5 distinct points.
Ondřej Hulík, Fridrich Valach
wiley   +1 more source

Homotopy Transfer and Effective Field Theory II: Strings and Double Field Theory

Fortschritte der Physik, Volume 70, Issue 2-3, March 2022., 2022
Abstract We continue our study of effective field theory via homotopy transfer of L∞$L_\infty$‐algebras, and apply it to tree‐level non‐Wilsonian effective actions of the kind discussed by Sen in which the modes integrated out are comparable in mass to the modes that are kept. We focus on the construction of effective actions for string states at fixed
Alex S. Arvanitakis, Olaf Hohm, Chris Hull, Victor Lekeu   +3 more
wiley   +1 more source

Exceptional Algebroids and Type IIB Superstrings

Fortschritte der Physik, Volume 70, Issue 1, January 2022., 2022
Abstract In this note we study exceptional algebroids, focusing on their relation to type IIB superstring theory. We show that a IIB‐exact exceptional algebroid (corresponding to the group , for ) locally has a standard form given by the exceptional tangent bundle.
Mark Bugden, Ondřej Hulík, Fridrich Valach, Daniel Waldram   +3 more
wiley   +1 more source

The anomaly that was not meant IIB

Fortschritte der Physik, Volume 70, Issue 1, January 2022., 2022
Abstract Type IIB supergravity enjoys a discrete non‐Abelian duality group, which has potential quantum anomalies. In this paper we explicitly compute these, and present the bordism group that controls them, modulo some physically motivated assumptions.
Arun Debray, Markus Dierigl, Jonathan J. Heckman, Miguel Montero   +3 more
wiley   +1 more source

Ontology After Folk Psychology; or, Why Eliminativists Should Be Mental Fictionalists

Analytic Philosophy, EarlyView.
ABSTRACT Mental fictionalism holds that folk psychology should be regarded as a kind of fiction. The present version gives a Lewisian prefix semantics for mentalistic discourse, where roughly, a mentalistic sentence “p” is true iff “p” is deducible from the folk psychological fiction.
Ted Parent
wiley   +1 more source

Dark Dimension With (Little) Strings Attached

Fortschritte der Physik, Volume 73, Issue 4, April 2025.
Abstract A relation between dark energy and the scale of new physics in weakly coupled string theory is motivated. This mixing between infrared and ultraviolet physics leads to a unique corner for real‐world phenomenology: barring fine‐tunings, the authors are naturally led to the “dark dimension” scenario, a single mesoscopic extra dimension of micron
Ivano Basile, Dieter Lüst
wiley   +1 more source