Publications by authors named "D W Kan"

The spin pumping effect in antiferromagnets, which ultimately converts THz waves into a spin current, is the key physical mechanism leading to an essential function which harnesses the THz technology and spintronics. Here, we report thorough experimental investigations of the spin current induced by the antiferromagnetic spin pumping effect in epitaxial α-Fe_{2}O_{3} thin films having two distinct dynamic modes and unambiguously show that both the inter- and intrasublattice spin mixing conductance are equally substantial. Our experimental insight is an important advance for understanding the physics of transduction between the spin current and the staggered magnetization dynamics at THz frequency.

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Electrochemically inserting and extracting hydrogen into and from solids are promising ways to explore materials' phases and properties. However, it is still challenging to identify the structural factors that promote hydrogen insertion and extraction and to develop materials whose functional properties can be largely modulated by inserting and extracting hydrogen through solid-state reactions at room temperature. In this study, guided by theoretical calculations on the energies of oxygen reduction and hydrogen insertion reactions with oxygen-deficient perovskite oxides, we demonstrated that the oxygen vacancy ordering in Sr(FeCo)O (SFCO) epitaxial films can be stabilized by increasing the Co content (x ≥ 0.

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Objectives: The study aimed to evaluate the efficacy and safety of hollow pedicle screw-anchored bone cement combined with posterior long-segment fixation (LSF) for the treatment of Stage III Kümmell's disease.

Patients And Methods: The study retrospectively analyzed 23 patients (18 females, 5 males; mean age: 70.1±6.

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Given the multitude of risks and challenges faced by the water ecological environment during urbanization, enhancing water ecological resilience and improving the water ecological environment have emerged as crucial topics in China's economic and social development, as well as its ecological civilization construction. This study proposes a research hypothesis on the relationship between new urbanization and water ecological resilience. Employing various econometric models such as the extended STIRPAT model, dynamic panel model, panel threshold effect model, dynamic panel mediating effect model and dynamic panel difference-in-difference model, empirical tests were conducted to examine the impact of new urbanization on water ecological resilience in central China.

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Article Synopsis
  • * Composite film materials are highlighted as promising solutions, as their structural design (homogeneous, layered, porous) can effectively dissipate electromagnetic waves and enhance performance.
  • * The review discusses the evaluation methods for EMI shielding performance, examines how structural features affect shielding effectiveness, and outlines future challenges and opportunities for these materials in next-generation electronics.
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