Results 61 to 70 of about 1,011 (213)
Semi-slant Riemannian maps into almost Hermitian manifolds [PDF]
, 2014 summary:We introduce semi-slant Riemannian maps from Riemannian manifolds to almost Hermitian manifolds as a generalization of semi-slant immersions, invariant Riemannian maps, anti-invariant Riemannian maps and slant Riemannian maps.
Park, Kwang-Soon, Şahin, Bayram
core +1 more source
Measuring the Hall Effect in Hysteretic Materials
Advanced Materials, EarlyView.The authors highlight common pitfalls in measuring the Hall effect: in hysteretic magnets, improper data processing can create signals that look exotic but are not real. This Perspective explains the origin of these artifacts and presents practical measurement strategies that help researchers identify reliable Hall responses in complex magnetic ...
Jaime M. Moya +6 more
wiley +1 more source
Rethinking Charge Transport and Recombination in Donor‐Diluted Organic Solar Cells
Advanced Materials, EarlyView.Organic solar cells with 1–45% PM6 content in Y12 were studied to link structure and charge dynamics to performance. The conductivity follows a 3D percolation model without a sharp threshold. Donor dilution preserves the photogeneration yield, but limits the fill factor due to transport resistance losses.
Chen Wang +14 more
wiley +1 more source
On the Conley-Zehnder index and Sasaki-Einstein manifolds [PDF]
, 2019 학위논문 (박사)-- 서울대학교 대학원 : 자연과학대학 수리과학부, 2019. 2. Koert, Otto van .제 2장에서는 저자가 서울대학교 수리과학부에서 학위를 하는 동안 출판한 논문에 대해 소개하였습니다. 구체적으로 Reeb 벡터장을 사교공간상의 경로로 간주하고 그 Conley-Zehnder 지표와 몫공간으로서 생성된 기저 공간의 orbifold 천(Chern) 특성류 사이의 관계를 규명하였습니다.
홍석민
core
The AdS/CFT correspondence and generalized geometry [PDF]
, 2011 The most general AdS$_5 imes Y$ solutions of type IIB string theory that are AdS/CFT dual to superconformal field theories in four dimensions can be fruitfully described in the language of generalized geometry, a powerful hybrid of complex and symplectic
Gabella, Maxime +2 more
core +4 more sources
Advanced Materials, EarlyView.A giant insulator to metal transition and emergent superparamagnetism are revealed by nanoparticle exsolution in non‐stoichiometric titanate perovskite thin films. By combining transport, synchrotron spectroscopy, and first‐principles calculations, this work reveals how defect reconfiguration and lattice reconstruction fundamentally reshape electronic ...
Sungil Kim +11 more
wiley +1 more source
Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities
Advanced Materials, EarlyView.This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen +7 more
wiley +1 more source
Advances in Magnesium‐Based Thermoelectrics: A Critical Review
Advanced Materials, EarlyView.Magnesium‐based thermoelectric materials have emerged as promising candidates for low‐to‐mid‐temperature energy conversion due to their abundance, low cost, and competitive performance. This review summarizes recent advances in Mg3X2, MgAgSb, and Mg2X systems, covering transport mechanisms, fabrication strategies, stability challenges, and device ...
Li‐Min Zhang +5 more
wiley +1 more source
, 2022 International audienceIn this book, it is relevant to recall the general objectives of the Systems and Engineering e-journal Thermodynamics of Interfaces and FluidMechanics. The thermodynamics of interfaces and fluid mechanics deals with interfaces, thin
Vincent, Stéphane +3 more
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Advanced Materials, EarlyView.A deep learning inverse‐design framework is established to create versatile reconfigurable terahertz metadevices. By synergizing deep learning with phase‐change materials, this approach enables on‐demand customization of multidimensional electromagnetic responses.
Yisheng Dong +11 more
wiley +1 more source