| Popis: |
Several reports have appeared during the past half century describing temperature changes of nematic liquid crystals, inparticular p-azoxyanisole, upon exposure to a magnetic field. Although all the experiments were conducted with the sample in good thermal contact with the over or bath, the temeperature changes persisted until the field was removed. It is proposed here that the thermal changes were a result of anisotropy of the thermal conductivity and heat leakage through the temperature measuring device. A new experiment supporting this view is discussed. |
