Results 71 to 80 of about 40,586 (257)

James Baldwin: Biographical Dispatches on a Freedom Writer

James Baldwin Review, 2016
This essay presents the idea of James Baldwin as a freedom writer, the organizing idea of my biography in progress. As a freedom writer, Baldwin was a revolutionary intellectual, an essayist and novelist committed unfailingly to the realization of racial
Phillip Luke Sinitiere
doaj   +1 more source

Ferroelectricity in Antiferromagnetic Wurtzite Nitrides

Advanced Functional Materials, EarlyView.
We establish MnSiN2${\rm MnSiN}_2$ and MnGeN2${\rm MnGeN}_2$ as aristotypes of a new multiferroic wurtzite family that simultaneously exhibits ferroelectricity and antiferromagnetism with altermagnetic spin splitting. By strategically substituting alkaline‐earth metals, we predict new materials with coexisting switchable polarization, spin texture, and
Steven M. Baksa, Lin‐Ding Yuan, Stephen D. Wilson, James M. Rondinelli   +3 more
wiley   +1 more source

Liquid Phase Transmission Electron Microscopy: A Window into the Early Stages of Complex Material Formation

Advanced Functional Materials, EarlyView.
Liquid‐phase transmission electron microscopy enables direct observation of nucleation and growth processes in solution. This review is dedicated to the remembrance of Helmut Cölfen and highlights recent studies on complex materials—oxides, biominerals, organic–inorganic crystals—which were central to his research activity. It summarizes key milestones,
Charles Sidhoum, Vinavadini Ramnarain, Nathaly Ortiz Peña, Dris Ihiawakrim, Clément Sanchez, Ovidiu Ersen   +5 more
wiley   +1 more source

Worksite tracing in Archaeological Architecture. A reconstruction workflow

Disegnare con, 2017
The process of designing an architectural project has always been among the most explored fields of research. On the one hand, it proves to be a historical document of cultural heritage; on the other hand, however, it allows the researcher to grasp the ...
Alfonso Ippolito, Martina Attenni, Carlo Bianchini, Carlo Inglese, Marika Griffo   +4 more
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Mechanical Behavior and Fracture Mechanisms of MXene/PVDF Nanocomponsites: In Situ Characterization and Multiscale Analysis

Advanced Functional Materials, EarlyView.
Multiscale experiments and modeling reveal how Ti3C2Tx MXene nanosheets reinforce PVDF nanocomposites. An optimal MXene loading (∼1 wt.%) nearly doubles tensile strength through efficient stress transfer, flake alignment, and crack‐deflection mechanisms, transforming ductile polymer behavior into a controlled multi‐stage fracture pathway which aligns ...
Bita Soltan Mohammadlou, James FitzPatrick, Li Meng, Kateryna Shevchuk, Ahmad Najafi, Yury Gogotsi   +5 more
wiley   +1 more source

Wigner crystals: New realizations of an old idea [PDF]

EPJ Web of Conferences, 2014
In this review, after a brief discussion of Wigner’s ideas about the localization of electrons due to Coulomb interaction in a low-density electron system with neutralizing background and the formation of a periodic array, we present the various possibilities to realize Wigner crystals: on the surface of liquid helium, in semiconductor heterostructures,
openaire   +4 more sources

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

Toward Tunable Magnetic Dirac Semimetals: Mn Doping of Cd3As2

Advanced Functional Materials, EarlyView.
Dilute magnetic doping of topological semimetals offers a pathway to tune the topological phase via time reversal symmetry breaking. This is achieved by alloying the Dirac semimetal Cd3As2 with Mn via molecular beam epitaxy. Magnetotransport measurements provide preliminary evidence of changes to the electronic structure consistent with the emergence ...
Anthony D. Rice, Ian Leahy, Herve Ness, Andrew G. Norman, Karen N. Heinselman, Chun‐Sheng Jiang, David Graf, Alexey Suslov, Stephan Lany, Mark Van Schilfgaarde, Kirstin Alberi   +10 more
wiley   +1 more source

Wilhelm von Humboldts frihet som epigenetisk bildning

Lychnos, 2007
This article examines the complex notion of freedom in the first major work of the German philosopher and Prussian government functionary Wilhelm von Humboldt (1767–1835), Ideen zu einem Versuch, die Gränzen der Wirksamkeit des Staats zu bestimmen from ...
Victoria Fareld
doaj  

The December 1st unification acts: Goals and deviations [PDF]

Zbornik Radova: Pravni Fakultet u Novom Sadu, 2020
The December 1st acts for the unification of South Slavs in a common state represented the end of the realization of the great idea of unification and the beginning of the process of the dissolution of the new state.
Ranđelović Nebojša V., Mitić Sara I.
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