The thermal response of a micro-thermal sensor at the slider–disk interface filled with helium–air gas mixtures is investigated. The heat transfer due to both the heat conduction in gas films and the near-field radiation is included. The effects of the helium fraction on the sensor temperature are discussed. The results show that due to the evanescent photo tunneling at a small spacing, the near-field radiation generates a large heat flux, resulting in decreases in the sensor temperature. However, at a large spacing over 10 nm, the heat transfer is dominated by the heat conduction in gas films. An increasing helium fraction causes an increase in the heat conduction and a consequent decrease in the sensor temperature.

中文翻译：

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考虑近场辐射的氦气混合气微热传感器温升研究

研究了微型热传感器在充满氦气混合物的滑块-磁盘界面处的热响应。包括由于气膜中的热传导和近场辐射引起的热传递。讨论了氦分数对传感器温度的影响。结果表明，由于小间距的倏逝光隧穿，近场辐射产生大的热通量，导致传感器温度降低。然而，在超过 10 nm 的大间距下，传热主要由气膜中的热传导控制。增加的氦气分数会导致热传导增加，从而导致传感器温度降低。