Observation of ultrafast spin dynamics using by half-cycled THz pulses
Project/Area Number |
23686012
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Research Category |
Grant-in-Aid for Young Scientists (A)
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Allocation Type | Single-year Grants |
Research Field |
Applied optics/Quantum optical engineering
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Research Institution | Chiba University (2012) The University of Tokyo (2011) |
Principal Investigator |
NAKAJIMA Makoto 千葉大学, 大学院・理学研究科, 准教授 (40361662)
|
Project Period (FY) |
2011 – 2012
|
Project Status |
Completed (Fiscal Year 2012)
|
Budget Amount *help |
¥28,080,000 (Direct Cost: ¥21,600,000、Indirect Cost: ¥6,480,000)
Fiscal Year 2012: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2011: ¥23,140,000 (Direct Cost: ¥17,800,000、Indirect Cost: ¥5,340,000)
|
Keywords | テラヘルツ波 / 超高速 / フェムト秒パルスレーザー / 磁性体 / スピンダイナミクス / 磁気光学 / THz / FID / スピントロニクス / コヒーレント制御 / スピン歳差運動 / 磁気共鳴 / 磁気光学効果 |
Research Abstract |
We studied the spin dynamics in ferromagnetic materials usingTHz time domain spectroscopy. We developed high intensity THz pulses using two-colorexcitation technique in air-plasma. The ultrafast response of the spin precession motionsin ErFeO were studied using the THz pulses. The observation of the spin reorientationtransition is succeeded using this technique, which enables us to clarify the spin statesin the ultrashort time scale.
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Report
(3 results)
Research Products
(84 results)
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[Journal Article] Mechanism of enhanced optical second-harmonic generation in the conducting pyrochlore-type Pb2Ir2O7-x2013
Author(s)
Y. Hirata, M. Nakajima, Y. Nomura, H.Tajima, Y. Matsushita, K. Asoh, Y. Kiuchi, A.G. Eguiluz, R. Arita, T. Suemoto, and K. Ohgushi
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Journal Title
Phys. Rev. Lett.
Volume: 110
Issue: 18
Pages: 187402-187402
DOI
Related Report
Peer Reviewed
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[Journal Article] Mechanism of enhanced optical second-harmonic generation in the conducting pyrochlore-type Pb2Ir2O7-x2013
Author(s)
Y. Hirata, M. Nakajima, Y. Nomura, H.Tajima, Y. Matsushita, K. Asoh, Y. Kiuchi, A.G. Eguiluz, R. Arita, T. Suemoto, and K. Ohgushi
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Journal Title
Physical Review Letters
Volume: 印刷中
Related Report
Peer Reviewed
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[Journal Article] Hard magnetic ferrite with a gigantic coercivity and high frequency millimetre wave rotation2012
Author(s)
A. Namai, M. Yoshikiyo, K. Yamada, S. Sakurai, T. Goto, T. Yoshida, T. Miyazaki, M. Nakajima, T. Suemoto, H. Tokoro, S. Ohkoshi
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Journal Title
Nature Communications
Volume: 3
Issue: 1
Pages: 10351-6
DOI
Related Report
Peer Reviewed
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[Journal Article] Intense terahertz emission from undoped GaAs/n-type GaAs and InAs/AlSb structures grown on Si substrates in the transmission-geometry excitation2011
Author(s)
Elmer Estacio, Satoru Takatori, Minh Hong Pham, Takashi Yoshioka, Tomoharu Nakazato, Marilou Cadatal-Raduban, Toshihiko Shimizu, Nobuhiko Sarukura, Masanori Hangyo, Christopher T.Que, Masahiko Tani, Tadataka Edamura, Makoto Nakajima, John Vincent Misa, Rafael Jaculbia, Armando Somintac, Arnel Salvador
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Journal Title
Applied Physics B
Volume: 103
Issue: 4
Pages: 825-829
DOI
Related Report
Peer Reviewed
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