Results 81 to 90 of about 261,846 (326)

Exploring Electronic States and Ultrafast Electron Dynamics in AlInP Window Layers: The Role of Surface Reconstruction

Advanced Functional Materials, EarlyView.
This study examines the surface characteristics of AlInP (001), crucial for advanced solar cells and photoelectrochemical devices. Using theoretical modeling and experiments, it identifies how phosphorus‐rich and indium‐rich surfaces create mid‐gap states that pin the Fermi level and influence ultrafast electron dynamics.
Mohammad Amin Zare Pour, Sahar Shekarabi, Isaac Azahel Ruiz Alvarado, Jonathan Diederich, Yuyings Gao, Agnieszka Paszuk, Dominik C. Moritz, Wolfram Jaegermann, Dennis Friedrich, Roel van de Krol, Wolf Gero Schmidt, Thomas Hannappel   +11 more
wiley   +1 more source

Multi‐Pathway Upconversion Emission in Symmetry‐Broken Nanocavities: Broadband Multiresonant Enhancement and Anti‐Correlated Interfacial Sensitivity

Advanced Functional Materials, EarlyView.
Symmetry‐broken plasmonic nanoantenna arrays achieve broadband multiresonant enhancement of second harmonic generation (SHG), third harmonic generation (THG), and upconversion photoluminescence (UCPL), under femtosecond laser excitation across the near‐infrared range (1000–1600 nm).
Elieser Mejia, Yuming Zhao, Meitong Nie, Benjamin Pittelkau, Aditya Garg, Junyeob Song, Wenqi Zhu, Henri Lezec, Amit Agrawal, Wei Zhou   +9 more
wiley   +1 more source

Lattice gas models derived from effective field theory

, 2004
We start from a low-energy effective field theory for interacting fermions on the lattice and expand in the hopping parameter to derive the nearest-neighbor interactions for a lattice gas model.
Hamilton, Matthew, Lee, Dean, Lynch, Iyam   +2 more
core   +1 more source

Discovery of an Intrinsic Antiferromagnetic Semiconductor EuSc2Te4 With Magnetism‐Driven Nonlinear Transport

Advanced Functional Materials, EarlyView.
EuSc₂Te₄, an antiferromagnetic semiconductor, exhibits a nonlinear Hall effect (NLHE) characterized by quadratic current–voltage behavior. Combined experimental and theoretical studies reveal that this NLHE is linked to its antiferromagnetism and involves contributions from the quantum metric.
Seng Huat Lee, Yufei Zhao, Noble Gluscevich, Hemian Yi, Zachary Morgan, Huibo Cao, Jahyun Koo, Yu Wang, Jingyang He, Venkatraman Gopalan, Yuanxi Wang, Weiwei Xie, CuiZu Chang, Qiang Zhang, Binghai Yan, Zhiqiang Mao   +15 more
wiley   +1 more source

Lattice Planar QED in external magnetic field [PDF]

, 2011
We investigate planar Quantum ElectroDynamics (QED) with two degenerate staggered fermions in an external magnetic field on the lattice. Our preliminary results indicate that in external magnetic fields there is dynamical generation of mass for two ...
Cea, Paolo, Cosmai, Leonardo, Giudice, Pietro, Papa, Alessandro   +3 more
core  

Lattice Analogues of $N=2$ Superconformal Models via Quantum Group Truncation

, 1992
We obtain lattice models whose continuum limits correspond to $N=2$ superconformal coset models. This is done by taking the well known vertex model whose continuum limit is the $G \times G/G$ conformal field theory, and twisting the transfer matrix and ...
Babelon, Babelon, Baxter, Belavin, Bernard, Bouwknegt, Bouwknegt, Bouwknegt, Christe, D. Nemeschansky, Di Francesco, Di Francesco, Di Francesco, Di Francesco, Di Francesco, Dijkgraaf, Eguchi, Eguchi, Eguchi, Fateev, Fateev, Felder, Felder, Fendley, Fendley, Gepner, Gepner, Gepner, Gepner, Hollowood, Intriligator, Jimbo, Jimbo, Jimbo, Jimbo, Jones, Kac, Kac, Kazama, Kirillov, Kostov, Kulish, Lerche, Lerche, Lerche, Lerche, Mathur, Mathur, Moore, N.P. Warner, Nemeschansky, Pasquier, Pasquier, Pasquier, Saleur, Saleur, Schellekens, Schellekens, Schellekens, Wenzel, Wenzel, Witten, Z. Maassarani, Zuber   +63 more
core   +2 more sources

Highly Efficient 3D‐Printed PVDF‐Based Triboelectric Nanogenerators Featuring Polymorphic Perovskite Nanofillers

Advanced Functional Materials, EarlyView.
This study demonstrates the use of a low‐cost 3D printing technique to prepare a large‐area PVDF‐FAPbI3 composite dielectric film for flexible TENG application. The δ→α phase transformation of the FAPbI3 nanofillers has significantly improved the β‐phase content, morphology, and dielectric properties of the PVDF film.
Nurfatin Hafizah Zain Karimy, Hai Li, Hock Beng Lee, Devi Prashad Ojha, Manoj Mayaji Ovhal, Vasanthan Devaraj, Sooman Lim, Jae‐Wook Kang   +7 more
wiley   +1 more source

Decoding quantum field theory with machine learning

Journal of High Energy Physics, 2023
We demonstrate how one can use machine learning techniques to bypass the technical difficulties of designing an experiment and translating its outcomes into concrete claims about fundamental features of quantum fields.
Daniel Grimmer, Irene Melgarejo-Lermas, José Polo-Gómez, Eduardo Martín-Martínez   +3 more
doaj   +1 more source

Switching of Magnetic Order via Non‐Magnetic Al Addition in FeCoNiMnAlx Films

Advanced Functional Materials, EarlyView.
Non‐magnetic Al addition provides a sensitive handle to switch the magnetic order in high entropy FeCoNiMnAlx thin films via fcc to bcc phase transformation. Films with fcc structure exhibit a large exchange bias, while bcc films exhibit enhanced ferromagnetic properties, reflecting the magnetic ground state of Mn which switches from antiferromagnetic ...
Willie B. Beeson, Dinesh Bista, Nushrat Naushin, Alpha T. N'Diaye, Roopali Kukreja, Gen Yin, Kai Liu   +6 more
wiley   +1 more source

Effective Field Theory for Bound State Reflection

, 2013
Elastic quantum bound-state reflection from a hard-wall boundary provides direct information regarding the structure and compressibility of quantum bound states.
Beane, Beane, Bernard, Chernykh, Dean Lee, Epelbaum, Epelbaum, Epelbaum, Esry, He, König, König, Lee, Lee, Lin, Lüscher, Lüscher, Macek, Marzin, Michelle Pine, Montangero, Pfalz, Suzuki, Takagahara, Tohsaki   +24 more
core   +1 more source