関連する実験動画

Updated: Jul 23, 2025

Synthesis of Non-uniformly Pr-doped SrTiO3 Ceramics and Their Thermoelectric Properties
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Synthesis of Non-uniformly Pr-doped SrTiO3 Ceramics and Their Thermoelectric Properties

Published on: August 15, 2015

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最適な超伝導 (Nd,Sr) NiO2のための温度における線形抵抗性

Kyuho Lee1,2, Bai Yang Wang3,4, Motoki Osada3,5

  • 1Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA, USA. kyuho@stanford.edu.

Nature
|July 12, 2023
PubMed
まとめ

研究者は欠陥のない無限層のニケラートを合成し,銅酸化物と同様の正常状態の性質を明らかにしました. この進歩はニケラートにおける超伝導性を高め,これらの超伝導体ファミリー間の収束を示唆しています.

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Superconductor

A substance that reaches superconductivity, a state in which magnetic fields cannot penetrate, and there is no electrical resistance, is referred to as a superconductor. In 1911, Heike Kamerlingh Onnes of Leiden University, a Dutch physicist, observed a relation between the temperature and the resistance of the element mercury. The mercury sample was then cooled in liquid helium to study the linear dependence of resistance on temperature. It was observed that, as the temperature decreased, the...
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When a voltage is applied to a conductor, an electrical field is generated, and charges in the conductor feel the force due to the electrical field. The current density that results depends on the electrical field and the properties of the material. In some materials, including metals at a given temperature, the current density is approximately proportional to the electrical field. In these cases, the current density can be modeled as:
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Theory of Metallic Conduction

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