1998 Fiscal Year Final Research Report Summary
Dilatometry study of ground state in heavy fermion
| Project/Area Number |
09640415
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
固体物性Ⅱ(磁性・金属・低温)
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| Research Institution | Tohoku University |
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Principal Investigator |
SAWADA Anju Tohoku University, Graduate School of Science, Associate Professor, 大学院・理学研究科, 助教授 (90115577)
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| Co-Investigator(Kenkyū-buntansha) |
SAKAI Osamu Tohoku University, Graduate School of Science, Associate Professor, 大学院・理学研究科, 助教授 (60005957)
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| Project Period (FY) |
1997 – 1998
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| Keywords | Thermal expansion / Magnetostriction / Multi phase superconductor / Electron pair / Superconductor / Spin triplet / Heavy fermion / Order parameter |
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| Research Abstract |
The magnetostriction and the thermal expansion on single crystalline UPt3 have been measured for the magnetic field applied parallel to the b- and c-axis of the crystal. Anomalous length changes different from known superconducting phase boundaries have been detected. One of the anomalies is a onset of the peak effect, and others should be connected with the reorientation of the unconventional superconducting order parameter.
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[Publications] A.Ishiguro, H.Aoki, O.Sugie, M.Suzuki, A.Sawada, N.Sato, T.Komatsubara, A.Ochiai, T.Suzuki, K.Suzuki, M.Higuchi and A.Hasegawa: "de Haas-van Alphen effect and Fermi surface of USb" J.Phys.Soc.Jpn.66. 2764 (1997)
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