Translator Reviews ( Japanese → English )

Japanese

高い転移温度で超伝導が起こる物質のこと。ここでいう「高温」は通常人間が熱いと感じるレベルではなく、－200℃～－100℃程度を指す。超伝導帯は次の２つの性質を示す。
■ゼロ抵抗・・・電気抵抗がある時は、電圧をかけなければ電流は流れない。しかし超伝導状態では、電気抵抗がないので電圧をかけなくても電流が流れる。また、抵抗がないので、永久電流が流れる。
■マイスナー効果（完全反磁性）・・・永久電流の磁場が外部磁場に重なり合って、超伝導体内部の磁束密度が常にゼロである現象が見られる。

English

Materials that become superconductors at high transition temperatures. "High-temperature" in this case does not mean a temperature that we humans normally feel hot, but refers to a temperature range between -200 to -100 degrees Celsius. Superconductors exhibit the following two properties.
■Zero resistance: When there is electric resistance, current does not flow unless a voltage is applied. However, in the superconducting state, electric current flows without applied voltage. Moreover, the current flows indefinitely because there is no resistance.
■The Meissner effect (perfect diamagnetism): The magnetic field from the persistent current and the applied magnetic field overlap and cancel each other such that the magnetic flux inside the superconductor becomes zero all the time.