Novel ferromagnetic superconductivity and field-induced phenomena in actinide compounds
Project/Area Number |
25247055
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Research Category |
Grant-in-Aid for Scientific Research (A)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Condensed matter physics II
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Research Institution | Tohoku University |
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)
HOMMA Yoshiya 東北大学, 金属材料研究所, 助教 (00260448)
LI Dxin 東北大学, 金属材料研究所, 助教 (40281985)
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Project Period (FY) |
2013-04-01 – 2016-03-31
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Project Status |
Completed (Fiscal Year 2015)
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Budget Amount *help |
¥45,630,000 (Direct Cost: ¥35,100,000、Indirect Cost: ¥10,530,000)
Fiscal Year 2015: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2014: ¥11,050,000 (Direct Cost: ¥8,500,000、Indirect Cost: ¥2,550,000)
Fiscal Year 2013: ¥31,980,000 (Direct Cost: ¥24,600,000、Indirect Cost: ¥7,380,000)
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Keywords | 強磁性超伝導 / 強磁性 / 超伝導 / ウラン化合物 / 重い電子系 / 磁場誘起現象 / フェルミ面 / スピン三重項 / 強磁性量子臨界点 / 国際情報交換 / フランス |
Outline of Final Research Achievements |
We grew high quality single crystals of UGe2, URhGe and UCoGe which show the coexistence of ferromagnetism and superconductivity. Many macroscopic experiments, such as resistivity, specific heat, thermopower, thermal expansion, magnetization and susceptibility, were performed under extreme conditions, namely low temperature, high field and high pressure. Microscopic experiments, such as de Haas-van Alphen experiments, Shubnikov-de Haas experiments, quantum oscillations in thermopower, were also done. We precisely determined temperature-field-pressure phase diagram in these materials, and focused on the field-induced ferromagnetic fluctuations and Fermi surface instabilities, which can be understood as the Lifshitz transition.
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Report
(4 results)
Research Products
(51 results)
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[Journal Article] Properties and Collapse of the Ferromagnetism in UCo1-xRuxAl Studied in Single Crystals2016
Author(s)
Pospisil, Jiri Opletal, Petr Valiska, Michal Tokunaga, Yo Stunault, Anne Haga, Yoshinori Tateiwa, Naoyuki Gillon, Beatrice Honda, Fuminori Yamamura, Tomoo Niznansky, Vojtech Yamamoto, Etsuji Aoki, Dai
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Journal Title
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
Volume: 85
Issue: 3
Pages: 034710-034710
DOI
NAID
Related Report
Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] Superconducting and Fermi Surface Properties of Single Crystal Zr2Co2016
Author(s)
A. Teruya, M. Kakihana, T. Takeuchi, D. Aoki, F. Honda, A. Nakamura, Y. Haga, K. Matsubayashi, Y. Uwatoko, H. Harima, M. Hedo, T. Nakama, Y. Onuki
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Journal Title
J. Phys. Soc. Jpn.
Volume: 85
Issue: 3
Pages: 034706-10
DOI
NAID
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Journal Article] Thermoelectric power quantum oscillations in the ferromagnet UGe22016
Author(s)
A. Palacio Morales, A. Pourret, G. Knebel, G. Bastien, V. Taufour, D. Aoki, H. Yamagami, and J. FlouquetA. Palacio Morales, A. Pourret, G. Knebel, G. Bastien, V. Taufour, D. Aoki, H. Yamagami, and J. Flouquet
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Journal Title
Related Report
Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
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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] Pressure-Temperature-Field Phase Diagram in the Ferromagnet U3P42015
Author(s)
Araki, Shingo Hayashida, Minami Nishiumi, Naoto Manabe, Hiroki Ikeda, Yoichi Kobayashi, Tatsuo C. Murata, Keizo Inada, Yoshihiko Wisniewski, Piotr Aoki, Dai Onuki, Yoshichika Yamamoto, Etsuji Haga, Yoshinori
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Journal Title
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
Volume: 84
Issue: 2
Pages: 024705-024705
DOI
NAID
Related Report
Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] Fermi surface instabilities in CeRh2Si2 at high magnetic field and pressure2015
Author(s)
Morales, A. Palacio, Pourret, A., Seyfarth, G., Suzuki, M. -T., Braithwaite, D., Knebel, G., Aoki, D., Flouquet, J.
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Journal Title
PHYSICAL REVIEW B
Volume: 91
Issue: 24
Pages: 245129-245129
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
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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] Multiband Superconductivity in KFe2As2: Evidence for One Isotropic and Several Lilliputian Energy Gaps2014
Author(s)
Hardy F, Eder R, Jackson M, Aoki D, Paulsen C, Wolf T, Burger P, Boehmer A, Schweiss P, Adelmann P, Fisher RA, Meingast C
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Journal Title
J. Phys. Soc. Jpn.
Volume: 83
Issue: 1
Pages: 14711-14711
DOI
NAID
Related Report
Peer Reviewed
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[Journal Article] Polarized Neutron on URu2Si22013
Author(s)
Bourdarot F, Ressouche E, Ballou R, Raymond S, Aoki D, Martin N, Regnault LP, Simonet V, Fernandez-Diaz MT, Stunault A, Taufour V, Flouquet J
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Journal Title
Physics Procedia
Volume: 42
Pages: 4-9
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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[Presentation] Metamagnetism in heavy fermion systems2015
Author(s)
G. Knebel, A. Pourret, D. Aoki, T. Combier, A. Palacio Morales, G. Lapertot, T. D. Matsuda, J. Flouquet
Organizer
20th International Conference on Magnetism 2015
Place of Presentation
Barcelona, Spain
Year and Date
2015-07-05
Related Report
Int'l Joint Research
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