2017 Fiscal Year Final Research Report
Experimental technique for the low-temperature magnetization measurements with a precise tuning of he field direction and its application to strongly correlated systems with strong anisotropy
| Project/Area Number |
15H03682
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Condensed matter physics II
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| Research Institution | The University of Tokyo |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
KITTAKA Shunichiro 東京大学, 物性研究所, 助教 (80579805)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | 極低温磁化測定 / フラストレート系 / 強相関電子系 / 磁性 |
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| Outline of Final Research Achievements |
Experimental technique for the low-temperature magnetization measurements with a fine tuning of the field orientation has been developed. Using this technique, we studied a field-induced quantum phase transition of the itinerant Ising ferromagnet URhGe and obtained the detailed structure of the wing phase diagram below the tricritical point. We also examined the liquid-gas transition of spin ice Dy2Ti2O7 in a magnetic field by precisely tuning the field direction along the [111] axis. We confirmed that the first-order transition occurring near 0.9T has an intrinsic width of about 0.5T even at very low temperatures. The results suggest the presence of some spatial structure in the monopole crystallization transition.
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| Free Research Field |
固体物理学
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