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Related Concept Videos

The Hall Effect01:30

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The Joule-Thomson effect, also known as the Joule-Kelvin effect, describes the temperature change of a fluid when it is forced through a valve or porous plug while keeping it in a thermally insulated environment. This experiment is called a throttling process. This is an important effect widely used in refrigeration and the liquefaction of gases.
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Heat Capacities of an Ideal Gas III01:25

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Heat Capacities of an Ideal Gas II01:23

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For a system that undergoes a thermodynamic process at a constant volume condition, the heat absorbed is used only to increase the system's internal energy and not for doing any kind of work. While for a system undergoing a thermodynamic process under a constant pressure condition, the amount of heat absorbed is used not only for increasing the internal energy (as a function of temperature) but also for doing some work. The molar heat capacity is the amount of heat required to increase the...
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Kinetic Theory of an Ideal Gas01:12

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Heat Capacities of an Ideal Gas I01:14

Heat Capacities of an Ideal Gas I

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Heat capacity is the ratio of heat absorbed by the substance corresponding to its temperature change. It is also called thermal capacity and the SI unit of heat capacity is J/K. Whereas, specific heat capacity is defined as the amount of heat necessary to change the temperature of 1 kg of a substance by 1 K and is also called massic heat capacity. Its SI unit is J/kg⋅K.
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Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry
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Thermal Hall effect from a modified Lorentz gas model.

Hongyuan Chen1, Yu Yang1, Zhizhou Yu1

  • 1NNU-SULI Thermal Energy Research Center (NSTER) and Center for Quantum Transport and Thermal Energy Science (CQTES), School of Physics and Technology, Nanjing Normal University, Nanjing 210023, China.

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|May 20, 2020
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This summary is machine-generated.

This study explores the thermal Hall effect in a modified Lorentz gas model. The effect

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Area of Science:

  • Condensed matter physics
  • Thermal transport phenomena

Background:

  • The thermal Hall effect is a fundamental transport phenomenon.
  • Understanding its behavior in different systems is crucial for technological applications.

Purpose of the Study:

  • To investigate the thermal Hall effect in a Lorentz gas model with rotating scatterers.
  • To elucidate the influence of rotating scatterers on thermal transport.
  • To explore the dependence of the thermal Hall effect on temperature and rotation direction.

Main Methods:

  • Systematic investigation using a modified Lorentz gas model.
  • Analysis of thermal transport properties under varying conditions.
  • Focus on the role of rotating circular scatterers as an analog to magnetic fields.

Main Results:

  • The thermal Hall effect's sign is reversible by changing the scatterer rotation direction.
  • The effect's intensity is independent of the longitudinal temperature difference.
  • Hall effect intensity is dependent on average longitudinal temperature, decreasing with increasing temperature, particularly at low angular velocities.

Conclusions:

  • Rotating scatterers in a Lorentz gas model effectively mimic magnetic field effects on the thermal Hall effect.
  • The findings provide insights into the underlying mechanisms of thermal Hall systems.
  • This research offers guidance for potential applications of the thermal Hall effect.