Time-Space Scaling near Stress-induced Quantum Critical Point

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SrTiO3 (Strontium titanatee) changes its crystal structure, when the uniaxial stress is applied. From the corrective atomic vibrations’ view points, we clarify the reason why this change occurs. On the other hand, it has been reported that the second-sound (produced by the phenomenon that “heat” transfers like “wave”) exists in this material. When we applied the uniaxial stress, the characteristic feature that is not allowed for the second-sound appears. This means that the second-sound does “not” exist. These results may help to present the basic concept for developing a new small capacitor, and may contribute, for example, to the weight saving of smart-phone.