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Elevating the Superconducting Temperature in Epitaxially Stabilized Rock-Salt NbO
Chemistry of Materials ( IF 7.2 ) Pub Date : 2024-05-09 , DOI: 10.1021/acs.chemmater.4c00097 Rintaro Kimura 1 , Kenichi Kaminaga 1 , Tomoki Kobayashi 2 , Yasumichi Cho 1 , Shingo Maruyama 1 , Atsutaka Maeda 2 , Yuji Matsumoto 1
Chemistry of Materials ( IF 7.2 ) Pub Date : 2024-05-09 , DOI: 10.1021/acs.chemmater.4c00097 Rintaro Kimura 1 , Kenichi Kaminaga 1 , Tomoki Kobayashi 2 , Yasumichi Cho 1 , Shingo Maruyama 1 , Atsutaka Maeda 2 , Yuji Matsumoto 1
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Niobium monoxide generally refers to Nb3O3 with a pseudorock-salt structure, which is known as thermodynamically the most stable phase, exhibiting superconductivity below 1.38 K; neither bulk nor thin film form of rock-salt NbO thus has been reported so far. In this study, metastable rock-salt NbO has been successfully synthesized through a nonequilibrium process with vapor deposition. The present synthesis of rock-salt NbO marked its enhancement of superconductivity, whose transition temperature could reach up to 7.4 K, more than 5 times as high as that of the pseudorock-salt Nb3O3. The structure-sensitive electronic properties of the rock-salt NbO will be further discussed not only experimentally but also theoretically with the aid of DFT + U + V calculations.
中文翻译：
提高外延稳定岩盐 NbO 的超导温度
一氧化铌一般指具有假岩盐结构的Nb 3 O 3 ，被称为热力学上最稳定的相，在1.38K以下表现出超导性；因此，到目前为止，无论是块状还是薄膜形式的岩盐 NbO 都尚未被报道。在这项研究中，通过气相沉积的非平衡过程成功合成了亚稳态岩盐 NbO。目前合成的岩盐 NbO 标志着其超导性的增强，其转变温度可达 7.4 K，是假岩盐 Nb 3 O 3
更新日期：2024-05-09
中文翻译：
提高外延稳定岩盐 NbO 的超导温度
一氧化铌一般指具有假岩盐结构的Nb 3 O 3 ，被称为热力学上最稳定的相，在1.38K以下表现出超导性；因此，到目前为止，无论是块状还是薄膜形式的岩盐 NbO 都尚未被报道。在这项研究中，通过气相沉积的非平衡过程成功合成了亚稳态岩盐 NbO。目前合成的岩盐 NbO 标志着其超导性的增强，其转变温度可达 7.4 K，是假岩盐 Nb 3 O 3
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