Results 311 to 320 of about 320,658 (381)

Harnessing Bifunctional Nitrogen‐Dislocation Interactions for a Record Ultra‐Strong‐and‐Ductile Duplex Titanium Alloy

open access: yesAdvanced Science, EarlyView.
By engineering bifunctional nitrogen‐dislocation interactions, this work constructs a heterogeneous lamellar structure with N‐rich low‐angle boundaries and coherent nanotwinned martensites, enabling ultrahigh yield/tensile strength (1532/1869 MPa) and activating massive dislocations via stress‐driven bow‐out/cross‐slip.
Chongle Zhang   +5 more
wiley   +1 more source

Anomalous Glassy Thermal Conductivity in a Perovskite Bismuthate Induced by Structural Dynamic Instability

open access: yesAdvanced Science, EarlyView.
Unraveling the underlying mechanisms at the origin of ultra‐low thermal conductivity in pristine crystals is of central relevance to designing new functional materials. Single crystals of the candidate functional material BaBiO3 show an anomalous glassy thermal conductivity, which reveals the role of strong anharmonicity and additional scattering ...
Alexandre Henriques   +6 more
wiley   +1 more source

Quantitative Control of Oxygen Non‐Stoichiometry and Negative Raman Chemical Shift During Topotactic Phase Transition in a Ca‐Doped BiFeO3 Thin‐Film

open access: yesAdvanced Science, EarlyView.
In an electrochemical titration cell utilizing a Ca‐doped BiFeO3 film, the oxygen stoichiometry was quantitatively controlled via electrical oxygen pumping. The structural and chemical changes were monitored through Raman spectroscopy and X‐ray diffraction.
Heung‐Sik Park   +7 more
wiley   +1 more source

Near Room‐Temperature Ferromagnetic Phase Achieved in 4d Ruthenate via Interfacial Ferrimagnetic Coupling and Octahedral Rotation Engineering

open access: yesAdvanced Science, EarlyView.
Transition metal oxides combining strong spin‐orbit coupling, near‐room‐temperature ferromagnetism, and high conductivity are rare. A Ca0.5Sr0.5RuO3 interfacial phase between LaMnO3 layers has all these features, high Tc, enhanced magnetization, and reduced coercivity.
Mengqin Wang   +10 more
wiley   +1 more source

Monotone transformations

open access: yesDuke Mathematical Journal, 1942
openaire   +2 more sources

Observation of Magnetic Pseudogap Behavior in Phosphorus‐Doped Silicon

open access: yesAdvanced Science, EarlyView.
Phosphorus‐doped silicon presents a promising platform for quantum computing and hosts a Kondo condensate state featuring a pseudogap. Thermodynamic and magnetic resonance measurements reveal that this pseudogap behavior involves critical spin fluctuations, suggesting that overlapping Kondo clouds form a correlated coherent magnetic ground state ...
Suheon Lee   +16 more
wiley   +1 more source

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