2009 Fiscal Year Final Research Report
Magnetic shape memory effect based on magnetic-field control of the d orbital degree of freedom
| Project/Area Number |
19340089
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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 | Tohoku University |
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Principal Investigator |
ARIMA Takahisa Tohoku University, 多元物質科学研究所, 教授 (90232066)
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| Project Period (FY) |
2007 – 2009
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| Keywords | 強相関系 / 形状記憶効果 |
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| Research Abstract |
Crystallographic and magnetic phase diagram in spinel-type Fe_<1-x>Mn_xCr_2O_4 has been obtained. The phase diagram implies that the ordering of the 3d-orbitaloccupation should dominate the direction of the spin easy axis. Based on this idea, the magneto-mechanical coupling in another spinel compound MnV_2O_4 has been investigated. A shape memory effect with external stimuli of magnetic fields instead of stress has been successfully achieved.
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