2010 Fiscal Year Final Research Report
Study of the ultrafast dynamics of photo-induced insulator-metal transition using terahertz pulses
| Project/Area Number |
21760004
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Applied materials science/Crystal engineering
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| Research Institution | The University of Tokyo |
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Principal Investigator |
NAKAJIMA Makoto The University of Tokyo, 物性研究所, 助教 (40361662)
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| Project Period (FY) |
2009 – 2010
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| Keywords | 光物性 / テラヘルツ波 / 光誘起相転移 / 金属絶縁体転移 / スピン制御 / 強磁性 |
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| Research Abstract |
We studied the ultrafast dynamics using THz pulses. We succeeded in observing the photo-induced insulator-metal transition by measuring the change of the electric conductivity. We succeeded in observing the coherent bulk-magnetization precession motion induced by THz pulses in ε-Fe_2O_3. We observed the coherent bulk-magnetization precession motions due to the ferro-magnetic and antiferro-magnetic resonances in YFeO_3, and succeed the coherent control of the precession motions by the double-pulse excitation.
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Research Products
(33 results)
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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 (Springer-Verlag)
Peer Reviewed
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