Results 91 to 100 of about 125,661 (296)

Omnipolar Magnetic Field Detection by Superlattice‐Based Hall Sensor

Advanced Functional Materials, EarlyView.
Magnetic‐field‐induced electronic switching is demonstrated in unit‐cell‐engineered La0.7Sr0.3MnO3–BiFeO3 superlattices. Distinct substrate terminations modify magnetic and transport properties. Hall resistance measurements show omnipolar, hysteretic anomalous Hall switching above the Curie temperature, arising from Fe─Mn interfacial exchange, enabling
Mark Huijben, Nicolas Gauquelin, Arno Annys, Zhaoliang Liao, Jo Verbeeck, Guus Rijnders, Gertjan Koster   +6 more
wiley   +1 more source

Ferromagnetism manipulation on 2D carbon nitrides by substituents with different electronic effects

Next Materials
With weak spin-orbital coupling and a unique band structure, graphitic carbon nitride (g-C3N4) is an ideal candidate for a 2D metal-free ferromagnetic material that can be used in next-generation spintronics.
Chenglong Yang, Ruozhan Pan, Chaozheng Zhou, Bo Gao, Song Xu, Baorui Song, Wenzhuo Wu, Qun Xu   +7 more
doaj   +1 more source

Dual‐Programmable Architected Magnetic Soft Materials: Tuning Mechano–Electric Responses by Inverse Design

Advanced Functional Materials, EarlyView.
ABSTRACT Materials that can deform, sense, and autonomously generate power in response to wireless magnetic fields, through both magnetic‐actuated shape transformation and charge generation, are an emerging focus in advanced functional materials research.
Zhi Zhao, Xiaojia Shelly Zhang
wiley   +1 more source

Origin of Room-Temperature Ferromagnetism in Hydrogenated Epitaxial Graphene on Silicon Carbide

Nanomaterials, 2019
The discovery of room-temperature ferromagnetism of hydrogenated epitaxial graphene on silicon carbide challenges for a fundamental understanding of this long-range phenomenon.
Mohamed Ridene, Ameneh Najafi, Kees Flipse   +2 more
doaj   +1 more source

Microscopic conditions favoring itinerant ferromagnetism: Hund's rule coupling and orbital degeneracy

, 1998
The importance of Hund's rule coupling for the stabilization of itinerant ferromagnetism is investigated within a two-band Hubbard model. The magnetic phase diagram is calculated by finite-temperature quantum Monte Carlo simulations within the dynamical ...
Held, K., Vollhardt, D.
core   +1 more source

FLOWS AND FERROMAGNETS

, 2007
The two-point correlation function of a Potts model on a graph $G$ may be expressed in terms of the flow polynomials of `Poissonian' random graphs derived from $G$ by replacing each edge by a Poisson-distributed number of copies of itself. This fact extends to Potts models the so-called random-current expansion of the Ising model.
openaire   +2 more sources

Chirality and Organization of Adsorbates Modify Surface Phonon Dynamics

Advanced Functional Materials, EarlyView.
Chirality and molecular organization are shown to influence surface phonon dynamics in gold films. Time‐resolved Joule heating measurements reveal that ordered homochiral monolayers increase the Debye temperature and disordered layers reduce it, while ordered racemic controls have no effect.
Meital Ozeri, Eugenia Pyurbeeva, Shira Yochelis, Jonas Fransson, Ronnie Kosloff, Oded Millo, Yossi Paltiel   +6 more
wiley   +1 more source

Lithium intercalated FeSe as a high-temperature superconducting ferromagnet

Nature Communications
Merging superconductivity and ferromagnetism in a single material may promise unparalleled quantum properties for next-generation devices. Here, we bring together the two antagonistic phenomena at a record-high temperature via electric-field controlled ...
Yi Hu, Keyi Liang, Jie Li, Zhijie Li, Fanyu Meng, Hechang Lei, Jiyuan Wang, Huizhen Wen, Ruozhou Zhang, Jiaqiang Cai, Jinglei Zhang, Yi Lu, Yihua Wang, Qi-Kun Xue, Ding Zhang   +14 more
doaj   +1 more source

Lithium Niobate Single Crystals and Powders Reviewed—Part II

Crystals, 2020
A review on lithium niobate single crystals and polycrystals has been prepared. Both the classical and recent literature on this topic is revisited. It is composed of two parts with several sections. The current part discusses the available defect models
Oswaldo Sánchez-Dena, Sergio David Villalobos-Mendoza, Rurik Farías, Cesar David Fierro-Ruiz   +3 more
doaj   +1 more source

Variational Mote Carlo Study of Flat Band Ferromagnetism -- Application to CeRh_3 B_2

, 2006
A new mechanism for ferromagnetism in CeRh_3B_2 is proposed on the basis of variational Monte Carlo results. In a one-dimensional Anderson lattice where each 4f electron hybridizes with a ligand orbital between neighboring Ce sites, ferromagnetism is ...
Batista C. D., Dhar S. K., Fujimori A., Galatanu A., Guerrero M., Guerrero M., Harima H., Jo T., Ku H. C., Malik S. K., Malik S. K., Mielke A., Okubo T., Penc K., Sampathkumaran E. V., Tasaki H., Umrigar C. J., Yamada M., Yamaguchi K., Yang K. N., Yokoyama H.   +20 more
core   +1 more source