Results 201 to 210 of about 485,582 (249)

Disorder Scattering Induced Large Room Temperature Nonlinear Anomalous Hall Effect in a Semiconductor CdGeAs2

open access: yesAdvanced Materials, EarlyView.
Bulk CdGeAs2, a well‐known nonlinear optical semiconductor, exhibits an exceptionally large room‐temperature nonlinear Hall effect (NLHE), achieving a record‐high nonlinear Hall responsivity of 2.2 × 10−3 m/V. This pronounced NLHE enables broadband frequency mixing up to the megahertz regime, establishing CdGeAs2 as a promising platform for next ...
Seng Huat Lee   +16 more
wiley   +1 more source

Control of Covalent Bond Enables Efficient Magnetic Cooling

open access: yesAdvanced Materials, EarlyView.
Giant and reversible magnetocaloric effect (MCE) is achieved by tuning covalency through sub‐unit‐cell chemical engineering, establishing a novel design principle for effective hysteresis control in magnetocaloric materials. Abstract Magnetic cooling, harnessing the temperature change in matter when exposed to a magnetic field, presents an energy ...
Xin Tang   +16 more
wiley   +1 more source

Silver Ions as Ambipolar Dopants in InAs Nanocrystal Solids

open access: yesAdvanced Materials, EarlyView.
Ag⁺ ions post‐introduced into InAs nanocrystal films act as ambipolar dopants whose effect depends on host polarity and dopant concentration. In n‐type InAs nanocrystal films, Ag⁺ occupies interstitial sites to yield n‐type doping effect, whereas in Zn‐doped p‐type InAs nanocrystal films, it first forms p‐type surface doping effect and later induces n ...
Hwichan Cho   +11 more
wiley   +1 more source

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