pressure-induced quantum phase transition and critical phenomena at ultra low temperature

2015 Fiscal Year Final Research Report

• Project/Area Number: 25400363
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Condensed matter physics II
• Research Institution: Kanazawa University
• Principal Investigator: Masashi Ohashi 金沢大学, 環境デザイン学系, 准教授 (10336000)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 量子相転移

Outline of Final Research Achievements

A quantum phase transition occurs when some parameters are tuned such as pressure, magnetic field, composition of the system, etc. Since it can occur at 0 K, there might be still unstable quantum fluctuations at the phase boundary, the quantum critical point even at absolute zero where thermal fluctuation does not exist. The purpose of this study is to reveal whether the singularity is really there. Physical properties of several compounds such as CeAl2 are described in detail at ultra-low temperature, and several novel phenomena are found such as the pressure-induced or composition induced quantum phase transition.

Free Research Field

固体物理学