2011 Fiscal Year Final Research Report
CLARIFICATION OF QUANTUM PHENOMENA AND THEIR EFFECTS OF CRITICAL END POINT OF FIRST ORDER TRANSITION IN QUANTUM DEGENERATE SYSTEMS
| Project/Area Number |
21740240
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Condensed matter physics II
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| Research Institution | Kyushu Institute of Technology (2011)
Osaka University (2009-2010) |
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Principal Investigator |
WATANABE Shinji 九州工業大学, 大学院・工学研究院, 准教授 (40334346)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 強相関系 |
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| Research Abstract |
It is shown theoretically that in strongly correlated electron systems, near the quantum critical end point where the critical end point of the first-order transition is suppressed to absolute zero, new quantum critical phenomena emerge. Near the quantum critical end point of the first-order valence transition, as temperature is decreased, uniform magnetic susceptibility and nuclear magnetic relaxation rate show divergence, resistivity shows a T-linear dependence, and electronic specific-heat coefficient shows logarithmic divergence. These results naturally explain unconventional quantum critical phenomena observed recently in paramagnetic-metal phases in Ce-and Yb-based heavy electron systems.
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Research Products
(18 results)
