Development of ultra-fast physical property measurement technique using adiabatic demagnetization method down to very low temperature
| Project/Area Number |
25630059
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Thermal engineering
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| Research Institution | Tohoku University |
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Principal Investigator |
AOKI Dai 東北大学, 金属材料研究所, 教授 (30359541)
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| Co-Investigator(Kenkyū-buntansha) |
HONDA Fuminori 東北大学, 金属材料研究所, 准教授 (90391268)
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| Project Period (FY) |
2013-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | 極低温 / 断熱消磁 / 重い電子系 / 断熱消磁冷凍 / 物性測定 / ADR |
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| Outline of Final Research Achievements |
We succeeded in developing a adiabatic demagnetization refrigerator using chromium alum. The lowest temperature down to 0.1K can be achieved within 2 hours from room temperature for the resistivity measurements. The cooling rate is extraordinary fast compared to the conventional method. This technique can be applied for many aspects, for example, the search for new materials, new superconductors, characterization for samples and so on. Using our ADR, we have measured the resistivity down to 0.1K in many materials, such as URhGe, where we obtained high quality single crystals with RRR~100. The development of ADR was reported in the press. Our ADR will be commercially available soon, because of many requests from researchers.
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Report
(3 results)
Research Products
(27 results)
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[Journal Article] Lattice dynamics of the heavy-fermion compound URu2Si22015
Author(s)
J. Buhot, M. A. Measson, Y. Gallais, M. Cazayous, A. Sacuto, F. Bourdarot, S. Raymond, G. Lapertot, D. Aoki, L. P. Regnault, A. Ivanov, P. Piekarz, K. Parlinski, D. Legut, C. C. Homes, P. Lejay, R. P. S. M. Lobo
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Journal Title
Phys. Rev. B
Volume: 91
Issue: 3
Pages: 035129-035129
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Fermi surface in the hidden-order state of URu2Si2 under intense pulsed magnetic fields up to 81 T2014
Author(s)
G. W. Scheerer, W. Knafo, D. Aoki, M. Nardone, A. Zitouni, J. Beard, J. Billette, J. Barata, C. Jaudet, M. Suleiman, P. Frings, L. Drigo, A. Audouard, T. D. Matsuda, A. Pourret, G. Knebel, and J. Flouquet
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Journal Title
Phys. Rev. B
Volume: 89
Issue: 16
Pages: 165107-165107
DOI
Related Report
Peer Reviewed
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[Journal Article] Strong Pauli-limiting behavior of Hc2 and uniaxial pressure dependencies in KFe2As22013
Author(s)
Burger P, Hardy F, Aoki D, Boehmer AE, Eder R, Heid R, Wolf T, Schweiss P, Fromknecht R, Jackson MJ, Paulsen C, Meingast C
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Journal Title
Phys. Rev. B
Volume: 88
Issue: 1
Pages: 14517-14517
DOI
Related Report
Peer Reviewed
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[Journal Article] Evidence of Strong Correlations and Coherence-Incoherence Crossover in the Iron Pnictide Superconductor KFe2As22013
Author(s)
Hardy F, Boehmer AE, Aoki D, Burger P, Wolf T, Schweiss P, Heid R, Adelmann P, Yao YX, Kotliar G, Schmalian J, Meingast C
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Journal Title
Phys. Rev. Lett.
Volume: 111
Issue: 2
Pages: 27002-27002
DOI
Related Report
Peer Reviewed
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[Journal Article] Magnetic Structure of Phase II in U(Ru_<0.96>Rh_<0.04>)_2Si_2 Determined by Neutron Diffraction under Pulsed High Magnetic Fields2013
Author(s)
K. Kuwahara, S. Yoshii, H. Nojiri, D. Aoki, W. Knafo, F. Duc, X. Fabreges, G. W. Scheerer, P. Frings,G. L. J. A. Rikken, F. Bourdarot, L. P. Regnault, and J. Flouquet
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Journal Title
Physical Review Letters
Volume: 110
Issue: 21
Pages: 216406-216406
DOI
Related Report
Peer Reviewed
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