Results 111 to 120 of about 357,046 (309)

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

Engineering a Spin‐Orbit Bandgap in Graphene‐Tellurium Heterostructures

Advanced Functional Materials, EarlyView.
Tellurium intercalation in epitaxial graphene on Ir(111) enables the emergence of a spin–orbit‐induced bandgap with energy spin splitting. By combining STM, ARPES, spin‐resolved ARPES, and DFT, two structural phases are identified, both exhibiting tunable electronic doping.
Beatriz Muñiz Cano, Fabián Calleja, Daniela Pacilè, Marc G. Cuxart, Michele Pisarra, Antonello Sindona, Fernando Martín, Elena Salagre, Pilar Segovia, Enrique G. Michel, Amadeo. L. Vázquez de Parga, Rodolfo Miranda, Julio Camarero, Manuela Garnica, Miguel Angel Valbuena   +14 more
wiley   +1 more source

A comprehensive study of particle dynamics, thermal fluctuations with Barrow entropy, and greybody factors of quantum-improved charged black holes

European Physical Journal C: Particles and Fields
This study examines the characteristics and behavior of quantum-improved charged black holes, focusing on the relationships between mass, charge, and the quantum-improved parameter. We explore the consequences of these characteristics on the structure of
Ghulam Fatima, Tao Zhu, Faisal Javed, Arfa Waseem, G. Mustafa   +4 more
doaj   +1 more source

Quantum Entangled Dark Solitons Formed by Ultracold Atoms in Optical Lattices

, 2009
Inspired by experiments on Bose-Einstein condensates in optical lattices, we study the quantum evolution of dark soliton initial conditions in the context of the Bose-Hubbard Hamiltonian.
G. K. Brennen, L. D. Carr, R. V. Mishmash   +2 more
core   +2 more sources

Self‐Poled Halide Perovskite Ruddlesden‐Popper Ferroelectric‐Photovoltaic Semiconductor Thin Films and Their Energy Harvesting Properties

Advanced Functional Materials, EarlyView.
Low‐dimensional halide perovskite thin films, (BA)2(MA)n‐1PbnBr3n+1 (n = 1, 2), exhibit both semiconducting and ferroelectric properties, enabling mechanical and light energy harvesting. Using Cr/Cr₂O₃ or PCBM as barrier layers ensures reproducible ferroelectricity.
Raja Sekhar Muddam, Shaoyang Wang, Nirmal Prashanth Maria Joseph Raj, Qingping Wang, Philip Wijesinghe, Julia Payne, Matthew S. Dyer, Chris Bowen, Lethy Krishnan Jagadamma   +8 more
wiley   +1 more source

Patterned Assembly of Transition Metal Dichalcogenide/Graphene Heterostructures via Direct Laser Writing

Advanced Functional Materials, EarlyView.
The fabrication of patterned transition metal dichalcogenide (TMD)/graphene heterostructures via direct laser writing reveals new interface chemistry and enables efficient, customizable assembly. Selective laser irradiation of functionalized TMD/graphene triggers localized reactions, forming chemically modified interfaces.
Xin Chen, Stefan Wolff, Sofiia Zuieva, Robert Schusterbauer, Rida Shaikh, Christian E. Halbig, Anton Habel, Roland Gillen, Kathrin C. Knirsch, Ievgen Donskyi, Siegfried Eigler, Janina Maultzsch, Andreas Hirsch   +12 more
wiley   +1 more source

IR finite correlation functions in de Sitter space, a smooth massless limit, and an autonomous equation

Journal of High Energy Physics
We explore two-point and four-point correlation functions of a massive scalar field on the flat de Sitter background in the long-wavelength approximation.
Alexander Kamenshchik, Polina Petriakova
doaj   +1 more source

Reflected entropy, symmetries and free fermions

Journal of High Energy Physics, 2020
Exploiting the split property of quantum field theories (QFTs), a notion of von Neumann entropy associated to pairs of spatial subregions has been recently proposed both in the holographic context — where it has been argued to be related to the ...
Pablo Bueno, Horacio Casini
doaj   +1 more source

A Mean Field Analysis of One Dimensional Quantum Liquid with Long Range Interaction

, 1993
Bi-local mean field theory is applied to one dimensional quantum liquid with long range $1/r^2$ interaction, which has exact ground state wave function. We obtain a mean field solution and an effective action which expresses a long range dynamics.
Calogero, Haldane, Haldane, Hubbard, Ishikawa, K. Ishikawa, Kawakami, Laughlin, Luther, Luttinger, Mattis, N. Maeda, Stratonovich, Sutherland, Sutherland, Tomonaga   +15 more
core   +2 more sources

Intramolecular Down‐ and Up‐Conversion in Dimeric Tetracene Complexes Centered via Platinum(II) and Palladium(II)

Advanced Functional Materials, EarlyView.
Metal‐tetracene dimeric complexes are synthesized through the pyridyl coordination to either Pt(II) or Pd(II). Photophysical properties are systematically compared as a function of the metal using steady‐state and time‐resolved spectroscopy. The Pt(II) dimer exhibits efficient intramolecular singlet fission and subsequent intramolecular up‐conversion ...
Yifan Bo, Yuxuan Hou, Melchor Matabuena, Rik R. Tykwinski, Dirk M. Guldi   +4 more
wiley   +1 more source