Lattice vibrational analysis of mantle minerals and related materials using Raman spectroscopy
| Project/Area Number |
21540497
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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 |
Petrology/Mineralogy/Science of ore deposit
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| Research Institution | Gakushuin University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
AKAOGI Masaki 学習院大学, 理学部化学科, 教授 (30126560)
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2010: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2009: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 格子振動 / 高圧 / ラマン分光 / 熱容量 / 格子振動モデル計算 / エントロピー / 熱力学 / ラマン分光測定 / ダイヤモンドアンビルセル / グリューナイゼン定数 / 非調和振動 / カルシウムフェライト / 地殻・マントル物質 / 定圧熱容量 / キーファーモデル |
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| Research Abstract |
The calcium ferrite-type MgAl_2O_4 and CaAl_2O_4 are expected as deep mantle constituent. Their heat capacities and lattice vibrational entropies were determined using the lattice vibrational model calculation based on the information of lattice vibrations, which were obtained from high-pressure Raman spectroscopic measurements. The high-temperature heat capacity of the spinel-type Mg_2SiO_4, which is the most abundant mineral in the depth range of 500-660 km in the mantle, was also re-determined using the same calculation method.
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Report
(4 results)
Research Products
(40 results)
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[Journal Article] Integer spin-chain antiferromagnetism of the 4d oxide CaRuO_3 with post-perovskite structure2011
Author(s)
Y.Shirako, H.Satsukawa, X.X.Wang, J.J.Li, Y.F.Guo, M.Arai, K.Yamaura, M.Yoshida, H.Kojitani, T.Katsumata, Y.Inaguma, K.Hiraki, T.Takahashi., M.Akaogi
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Journal Title
Physical Review B
Volume: (In press)
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Peer Reviewed
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[Presentation] Magnetic ground state of PbVO_3 and origin of the large tetragonal distortion2009
Author(s)
K.Oka, I.Yamada, M.Azuma, M.Takano, Y.Shimakawa, S.Takeshita, K.H.Satoh, A.Koda, R.Kadono, H.Kojitani, M.Akaogi
Organizer
International Conference on High Pressure Science and Technology Joint AIRAPT-22 & HPCJ-50
Place of Presentation
Tokyo Inter National Exchange Center(Tokyo)
Year and Date
2009-07-31
Related Report
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[Presentation] Magnetic Properties of high-pressure phase of CaRuO_3 with post-perovskite structure2009
Author(s)
Y.Shirako, H.Satsukawa, H.Kojitani, T.Katsumata, M.Yoshida, Y.Inaguma, K.Hiraki, T.Takahashi, K.Yamaura, E.Takayama-Muromachi, M.Akaogi
Organizer
International Conference on High Pressure Science and Technology Joint AIRAPT-22 & HPCJ-50
Place of Presentation
Tokyo Inter National Exchange Center(Tokyo)
Year and Date
2009-07-29
Related Report
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