Ryuta Yagi
略歴
東京大学理学部物理学科 助手 (1993-1999)
東京大学物性研究所 PD (科学技術振興事業団) (1999-2000)
論文
Ryoya Ebisuoka1,
Takushi Oka1, Shingo Tajima1, Taiki Hirahara1,
Tomoaki Nakasuga1, Kenji Watanabe2, Takashi Taniguchi2,
and Ryuta Yagi1
Magnetic
xxxxxxxxxxxxxxxxxxxxxx
in Moiré Superlattice of h-BN-bilayer Graphene Heterostructures, submitted, (Under Review).
(Preprint
DOI: 10.1103/PhysRevB.99.085404.
Phys. Rev. B 99, 035440 (2019).
DOI:
10.1103/PhysRevB.99.035440
[R57] Taiki Hirahara,
Ryoya Ebisuoka, Takushi Oka, Tomoaki Nakasuga, Shingo Tajima, Kenji Watanabe,
Takashi Taniguchi and Ryuta Yagi
Multilayer graphene shows intrinsic resistance peaks in the carrier density dependence. Sci. Rep. 8 13992 (2018). DOI: 10.1038/s41598-018-32214-7
[R56] Ryuta Yagi, Taiki Hirahara, Ryoya Ebisuoka, Tomoaki Nakasuga, Shingo Tajima, Kenji Watanabe, and Takashi Taniguchi ,
"Low-energy band structure
and even-odd layer number effect in AB-stacked multilayer graphene",
Sci. Rep.
8 13018 (2018).
[R55] T. Hirahara, R. Ebisuoka, K. Watanabe, T. Taniguchi and R. Yagi,
"Magnetoresistance measurements of tetralayer
graphene device with single gate electrode",J. Phys. Conf. Ser.
969, 012150 (2018). DOI
:10.1088/1742-6596/969/1/012150
[R54] R. Yagi, R. Sakakibara, R. Ebisuoka, J. Onishi, K. Watanabe, T. Taniguchi and Y. Iye,
“Ballistic
transport in graphene antidot lattices”, Phys. Rev. B 92, 195406 (2015).
[R53] R. Yagi
and A. Endo,
“Electric Transport of Graphene Subjected to Modulated Structures”
J. Phys. Soc. Jpn 84, 212008 1-9 (2015).
-----invited review-------
[R52] Seiya Fukada, Yumi Shintani, Midori Shimomura, Fumiya Tahara and Ryuta Yagi,
“Graphene made by mechanical
exfoliation of graphite intercalation compound”,
Jpn. J. Appl. Phys. 51,
085101 (2012).
[R51] Ryuta Yagi, Midori Shimomura, Fumiya Tahara, Hiroaki Kobara, and
Seiya Fukada,
“Observing Altshuler-Aronov-Spivak (AAS) oscillation in a hexagonal antidot
array of monolayer graphene”
J. Phys. Soc Jpn. 81, 063707 (2012).
[R50] Kazuki Tsuboi and Ryuta Yagi,
"Effect of magnetic field on charge imbalance relaxation of Non-Equilibrium
superconductivity",
Physica C 470, S877-S878 (2010).
[R49] . Ryuta Yagi, Seiya Fukada, Hiroaki Kobara, Yumi Shintani, Norio
Ogita and Masayuki Udagawa,
"Magnetoresistance oscillation at charge neutrality point in monolayer graphene
due to potential fluctuation"
J. of Phys. Conf. Ser. 232, 012013
(2010).
[R48] Ryuta Yagi, Seiya Fukada,
Hiroaki Kobara, Norio Ogita and Masayuki Udagawa,
"Negtive magnetoresistance due to charge fluctuation in mono-layer graphene in
magnetic field",
Physica E 42 673-676(2010),
4pages
DOI:
10.1016/j.physe.2009.12.001
[R47] Kazuki
Tsuboi and Ryuta Yagi,
"Charge Imbalance Relaxation Due to Pair Breaking Perturbation by magnetic
field.",
J. Phys. Soc. Jpn. 79, 013704
(2010).
[R46] R.
Yagi, K. Tsuboi, R. Morimoto, T. Matsumura H. Kobara,
"Study
of Quasi-Particle Recombination Rate by Injection Experiment Using Narrow
Superconducting Wire and dc-SQUID Junctions,
J. Phys. Soc. Jpn. 78, 54704 (2009).
DOI:
10.1143/JPSJ.78.054704
[R45] R. Yagi, K. Utsunomiya, K.
Tsuboi, T. Kubota,
Y. Terao and Y. Ikebuchi, “Tunneling
Measurements of charge imbalance of non-equilibrium superconductors”,
Controlable Quantum States, pp.3-8,
World Scientific, Singapore, 2008.
[R44] K. Utsunomiya, K. Tsuboi, T.
Kubota and R. Yagi,
“Josephson Junction with Tunable Damping using Quasi-particle Injection”,
Controlable Quantum States, pp.59-64,
World Scientific, Singapore, 2008.
[R43] R. Yagi,
"Observation of Charge Imbalance in
Voltage Biased Superconductor-Insulator-Normal Tunnel Junctions"
Phys. Rev. B
73,
134507- (2006).
[R42] K. Utsunomiya and R. Yagi,
“Control of Profile of Josephoson Junction by Quasi-Particle Injection“,
Physica B, 383, 53-54 (2006).
[R41] H. Sera, Y. Ikebuchi and R. Yagi, “Observation of Non-Equilibrium
Superconductivity Using DC-SQUID”,
Physica B, 383, 55-56 (2006).
[R40] Kubota and R. Yagi,
“Fabrication of Cr/CrOx/Cr SET
Transistors”,
Physica B, 383, 57-58 (2006).
[R39] R. Yagi,
“Spatial Decay of Nonequilibrium Quasiparticles in Narrow Superconducting Wires
with Injection”,
AIP Conference
Proceedings, 850, 1419-1420
(2006).
[R38] Kubota and R. Yagi,
“Fabrication of Cr/CrOx/Cr SET Transistors”,
AIP Conference
Proceedings, 850, 751-752
(2006).
[R37] Y. Ikebuchi and R. Yagi ,
“Bias dependence of charge imbalance effect in superconducting narrow wires with
superconductor/insulator/normal junctions”, Physica E
22 ( 2004)
757-760.
DOI:
10.1016/j.physe.2003.12.120
[R36] R. Yagi
[R35] T.
Yamaguchi, R. Yagi, A. Kanda, Y. Ootuka, S. Kobayashi
“Phase diagram for two-dimensional arrays of small Josephson junctions with
shunt resistors” Physica C, 352 (2001) 181-185
[R34] T.
Yamaguchi, R. Yagi, A. Kanda, Y. Ootuka, and S. Kobayashi
“Superconductor-insulator transition in a two-dimensional array of resistively
shunted small Josephson junctions”
Phys. Rev. Lett. 85 (2000)
1974-1977.
[R33] R. Yagi, S. Kobayashi, and
Y. Ootuka
“Superconductor-Insulator Transition in Single Small Josephson Junction with
Normal Tunneling Junction and with Ohmic Shunt Resistor”,
Physica B 280(2000)416-417.
[R32] R.
Yagi,
S. Kobayashi, and Y. Ootuka:
“Dissipative Phase Transition in Single Small Josephson Junction with Normal
Tunneling Junction”
J. Phys. Soc. Jpn. 68 (1999)
1075-1077.
[R31] R. Yagi and S. Kobayashi:
"The Effect of Shunt Resistor on Superconductor-Insulator Transition in Single
Small Josephson Junctions",
Solid State Electronics 42 (1998)
1477-1480.
[R30] T. Yamaguchi, R. Yagi, S.
Kobayashi, and Y. Ootuka:
"Two-Dimensional Arrays of Small Josephson Junctions with Regular and Random
Defects",
J. Phys. Soc. Jpn. 66 (1998)
729-731.
[R29] R. Yagi and S. Kobayashi:
"Tuning of Superconductor-Insulator Transition in Single Small Josephson
Junctions with Shunt Resistor",
J. Phys. Soc. Jpn. 66(
1997)3360-3362.
[R28] R. Yagi and S. Kobayashi:
"Phase Diagram for Superconductor-Insulator Transition in Single Small Josephson
Junction with Shunt Resistor",
J. Phys. Soc. Jpn. 66(1997)3722-3724.
[R27] H. Kazawa, R. Yagi, K. Ono,
Y. Ootuka and S. Kobayashi:
"Chemical Potential Dependence of Resistance of Two-Dimensional Array of Small
Tunnel Junctions",
J. Phys. Soc. Jpn. 66(1997)276-277.
[R26] R. Yagi, T. Yamaguchi, H.
Kazawa and S. Kobayashi:
"Study on Superconductor-Insulator Transition in Two-Dimensional Arrays of Small
Josephson Junctions",
J. Phys. Soc. Jpn. 66 (1997)
2429-2436.
[R25] H. Kazawa, R. Yagi, K. Ono,
Y. Ootuka and S. Kobayashi:
"Gate Voltage Dependence of Resistance of Two-Dimensional Array of Small Tunnel
Junctions",
Jpn. J. Appl. Phys. 36 (1997)
4020-4021.
[R24] R. Yagi, T. Yamaguchi, H.
Kazawa, and S. Kobayashi:
"Superconductor-Insulator Transition in Two-Dimensional Network of Josephson
Junctions",
J. Phys. Soc. Jpn. 65(1996)36-38.
[R23] R.Yagi, H. Kazawa, T.
Yamaguchi, and S. Kobayashi:
"Meausrement of Self Capacitance via Single Electron Tunneling Transistor",
J. Phys. Soc. Jpn. 65(1996)868-869.
[R22] R. Yagi, T. Yamaguchi, H.
Kazawa and S. Kobayashi:
"Capacitance Dependence of Critical Tunneling Resistance for
Superconductor-Insulator Transition in Two-Dimensional Network of Josephson
Junctions",
Physica B227 (1996)232-234.
[R21] R. Yagi, T. Yamaguchi, and
S. Kobayashi:
"Effect of Finite System Width in Two-Dimensional Network of Small Tunnel
Junctions",
Czech. J. Phys. 46 (1996) 695-696.
[R20] R. Yagi, T. Yamaguchi, H.
Kazawa, and S. Kobayashi:
"Phase Diagram for Superconductor-Insulator Transitions in Two-Dimensional
Network of Small Tunnel Junctions",
Czech. J. Phys. 46 (1996) 693-694.
[R19] R. Yagi, T. Yamaguchi, and
S. Kobayashi:
"Edge Effect in Two-Dimensional Network of Small Josephson Junctions",
J. Phys. Soc. Jpn. 65 (1996) 2365-2366. DOI: 10.1007/BF02583654
[R18 ] R. Yagi and S. Kobayashi:
"Charge-Vortex Duality Breaking in Small Tunnel Junction with Finite Width",
J. Phys. Soc. Jpn. 64 (1995)
375-377.
[R17] T. Uchihashi, R. Yagi and S. Kobayashi:
"Spectroscopy of a Single Superconducting Fine Particle using a Scanning
Tunneling Microscope",
J. Phys. Soc. Jpn. 64
(1995)1059-1062.
[R16]
R. Yagi and S. Kobayashi:
"Breakdown of Charge-Vortex Duality in Small Tunnel Junction Arrays with Finite
Width",
Jpn. J. Appl. Phys. 34
(1995)4569-4571.
[R15] Y.Iye, R.Yagi, N.Hanasaki,
S.Kagoshima, H.Mori, H.Fujimoto and G. Saito:
"The Origin of Anomalous Angular Dependent Magnetoresistance Oscillation Effect
in
alpha-(BEDT-TTF)2KHg(SCN)4"
J. Phys. Soc. Jpn. 63 (1994 )
674-684.
*[R14] T. Kagayama, G. Oomi, R. Yagi, Y. Iye, Y. Onuki and T. Komatsubara:
“Effect of Pressure on the Magnetoresistance of CeInCu2”,
J. Alloy. Compd 207 (1994) 271-274.
[R13] R. Yagi and Y. Iye:"On the Peak Inversion of The Angular Dependent Magnetoresistance Oscillation of
Cylindrical Fermi Surfaces with Different Corrugation Symmetries",
Solid State Commun. 89(1994)275-281.
[R12] Y. Iye, R .Yagi, N. Hanasaki, S. Kagoshima, H. Mori, H. Fujimoto
and G. Saito,
“Study of the Angular Dependent Magnetoresistance Oscillations in
alpha-(BEDT-TTF)2M(SCN)4
[M:K, NH4]”,
Physica B 201 (1994) 474-478.
[R11] R.Yagi and Y.Iye:
"Oscillatory Magnetoresistance in Two-Dimensional Electron Systems in a
Periodically Modulated Magnetic Field'',
J. Phys. Soc. Jpn., 62
(1993) 1279-1285.
[R10] S. Kagoshima, T. Osada, A. Kawasumi, R. Yagi, N. Miura, M. Oshima
H. Mori, T. Nakamura, and G. Saito,
"Magnetotransport studies of Topology of Fermi Surface of the Quasi
Two-Dimensional Organic Conductors
(BEDT-TTF)2KHg(SCN)4 , the Isostructural Metal
(BEDT-TTF)2(NH4)Hg(SCN)4 and the Quasi One-Dimensional
Superconductor (TMTSF)2ClO4", Mechanism
of Superconductivity, eds.
Y.Muto,
JJAP Series 7 (1992) 381-389.
[R9] R.Yagi and Y.Iye,
"On the Temperature Dependence of Hall Effect in Low Carrier Density Metals'',
J. Phys. Soc. Jpn. 61 (1992)
227-232.
*[R8] T.Kagayama, G.Oomi, R.Yagi, Y.Iye, Y.Onuki and T.Komatsubara,
" Pressure-Induced Positive Magnetoresistance in the Heavy Fermion Compound
CeInCu2'',
J. Phys. Soc. Jpn. 61 (1992)
2632-2635.
[R7] R.Yagi, Y.Iye, T.Osada, and S.Kagoshima,
"Angular Dependent Oscillatory Magnetoresistance in Quasi-Two-Dimensional
Systems'',
Synth. Met. 42 (1991) 2237-2240.
[R6] T.Osada, R.Yagi, A.Kawasumi, S.Kagoshima, N.Miura, M.Oshima, H.Mori,
T.Nakamura, and G.Saito:
"Fermiology and unusual high-field magnetotransport in novel organicmetals
(BEDT-TTF)2XHg(SCN)4 (X=K,NH4)'',
Synth. Met. 42 (1991) 2171-2174.
[R5] R.Yagi, Y.Iye, Y.Hashimoto, T.Odagiri, H.Noguchi, H.Sakaki, and
T.Ikoma:
"Angular Dependent Magnetoresistance Oscillation in GaAs/AlxGa1-xAs
Superlattice'',
J. Phys. Soc. Jpn. 60(1991)
3784-3791.
[R4] R.Yagi, Y.Iye, T.Osada, and
S.Kagoshima:
"Semiclassical Interpretation of Angular Dependent Oscillatory Magnetoresistance
in Quasi-Two-Dimensional Systems'', J. Phys. Soc. Jpn.
59 (1990)
3069-3072.
[R3] T.Osada, R.Yagi, S.Kagoshima, N.Miura, M.Oshima, and G.Saito:
"High-field Magnetotransport and Fermi-Surface Topology in the Novel
Quasi-Two-Dimensional Organic Conductor
bis(ethylenedithiolo)tetrathiafulvalenium mercuric potassium thiocyanate,
(BEDT-TTF)2KHg(SCN)4"
Phys. Rev.
B41 (1990) 5428-5431.
[R2] T.Osada, R.Yagi, S.Kagoshima, N.Miura, M.Oshima, and G.Saito:
" High-field Magnetotransport in the Organic Conductor (BEDT-TTF)2KHg(SCN)4''
The Physics and Chemistry of Organic Superconductors, eds.
G.Saito and S.Kagoshima,
(Springer-Verlag,Heidelberg,1990) pp.220-223.
[R1] T.Osada, A.Kawasumi, R.Yagi, S.Kagoshima, N.Miura, M.Oshima, H.Mori,
T.Nakamura, and G.Saito:
"Quantum Oscillations of Magnetoresistance in a New Organic Superconductor
(BEDT-TTF)2(NH4 )Hg(SCN)4''
Solid State Commun. 75 (1990)
901-905.
著書
1八木隆多 グラフェンの機能と応用展望 シーエムシー出版 監修 徳本洋志、斉木幸一郎 （分担執筆 9章 単層グラフェンの輸送現象 ） 2009年７月
2八木隆多 丸善実験物理講座 第11巻
(小林俊一、大塚洋一編）
1999年10月 分担執筆
(第3章第2節
,
第4章第6節, 第1章)
解説等
1
八木隆多
グラフェンの磁気抵抗
固体物理 特集号
ディラック電子系の固体物理
固体物理 45,631-644 (2010)
2
八木隆多 微小トンネル接合の基礎と応用
広島大学低温センターだより pp9-11
(2000)
3
家泰弘、八木隆多
「磁場中で試料を回転するいくつかの方法」
固体物理
26(1991)892-898.
4
八木隆多、 家泰弘:
変調構造下での磁気輸送現象
生産研究
45(1993)116-120.
5
神田晶申、八木隆多、山田廉一、小林俊一:
微小トンネル接合のネットワークにおけるKosteritz-Thouless
転移
日本物理学会誌 1995
vol 50 p643-646.
解説記事翻訳
1 呼吸する超伝導のはしご Ｌ.フロリア著 八木隆多 訳
パリティー2000年12月号 pp23-24.
2 古典力学が破綻している、ナノスケールの世界の多様性 「量子ショットノイズは何を語るか」 八木隆多訳 パリティー
2004年 2月号pp14-23.
国際会議発表等
[S40] R. Yagi, R. Sakakibara, R. Ebisuoka, J. Onishi,
K. Watanabe, T. Taniguchi and Y. Iye,
“Commensurability magnetoresistance due to ballistic transport in highmobility
graphene antidot lattices made on h-BN”
33rd International Conference on the Physics of Semiconductors,
Beijin, China, Jul 31- Aug. 5, 2016.
[S39] R. Yagi, R. Sakakibara, R. Ebisuoka, J. Onishi, K. Watanabe, T.
Taniguchi and Y. Iye.
Magneto-transport of high-mobility graphene antidot lattices made on h-BN –
ballistic and phase coherent transport
The 22nd International Conference on High Magnetic Fields in
Semiconductor Physics, Sapporo Japan, Jul 25- 29,2016.
[S38] R. Ebisuoka, S. Uchino, T. Hirahara, J. Onishi, K. Watanabe, T. Taniguchi
and R. Yagi
“Brillouin zone folding and anisotropic ban structure in more superlattices in
bilayer graphene/h-BN heterostructure,
The 22nd International Conference on High Magnetic Fields in
Semiconductor Physics, Sapporo Japan, Jul 25- 29, 2016.
[S37] T. Hirahara, S. Uchino, R. Ebisuoka, J. Onishi, K. Watanabe T. Taniguchi
and R. Yagi
“Magnetotransport study of electronic band structure in tetralayer graphene
using high-mobility graphene fabricated on h-BN”
The 22nd International Conference on High Magnetic Fields in
Semiconductor Physics, Sapporo Japan, Jul 25-29, 2016.
[S36] R. Yagi, M. Shimomura, and S. Fukada
“Graphene made by exfoliation of graphite intercalation compound”
The Sixteenth International Conference on the Science and Application of
Nanotubes, Nagoya, Japan,June 28- July 3, 2015.
[S35] R. Yagi, R, Sakakibara, and R. Ebisuoka
“Quantum Correction to Conductance in Graphene Antidot Lattices”
21st International Conference on Electronic Properties of
Two-Dimensional Systems, Sendai, Japan,
Jul 26-31, 2015.
ISAAN
[S34] R. Yagi, R. Sakakibara, R. Ebisuoka, J. Onishi,
K. Watanabe, T. Taniguchi and Y. Iye,
“Ballistic transport in graphene antidot lattices.”
Americal Physical Society March meeting, Baltimore, USA
2016.
[S33] R. Yagi, R. Sakakibara, J. Onishi
Altshuler-Aronov-Spivak Osicllation in Graphene Antidot Lattice
Americal Physical Society March meeting, San Antonio, USA, Mar. 2-6,2015.
[S32] R. Yagi, R. Sakakibara, F. Tahara, J. Onishi, D. Takegawa
Magnetoresistance of thin film devices fabricated from bulk crystal of Bi2Se3
and Bi2Te3
Americal Physical Society March meeting, Denver, USA, Mar. 3-7, 2014.
[S31] R. Yagi, M. Shimomura, F. Tahara, S. Fukada
“Fabricating graphene from graphite intercalation compounds”
Americal Physical Society March meeting, Baltimore, USA, Mar.18-22, 2013
[S30] R. Yagi, S. Fukada, Y. Shintani,
Fluctuation of magnetoresistance at the minimum conductivity point of monolayer
graphene due to potential fluctuation,
Americal Physical Society March meeting,Portland, USA, Mar. 15-19, 2010.
[S29] Ryuta Yagi, Seiya Fukada, Yumi Shintani
“Magnetic fingerprint of mono-layer graphene”
Recent Advances in Graphene and Related Materials,
Aug, 1-6, 2010, Singapore.
[S28] R. Yagi, S. Fukada, H. Kobara, N. Ogita and M. Udagawa
Negative magnetoresistance due to charge fluctuation in mono-layer graphene at
the minimum conductivity point,
The 18th international conference on electronic property of two dimensional
systems
（EP2DS）,
July 19-24, 2009 Kobe, Japan.
[S27] R. Yagi,
“Magnetotransport of graphene FET”,
The 4th International Symposium on Atomic Technology, 17-18,
Nov,2009, Maiko, Japan.
[S26] K. Tsuboi and R. Yagi,
“Relaxation of Charge Imbalance in Non-equilibrium Superconductivity Due to Pair
Breaking Perturbation by Magnetic Field”,
9th International Conference
on Material and Mechanisms of Superconductivity (M2S-IX), Tokyo,
Japan. Sept 7-12, 2009.
[S25] R. Yagi,
"Physics of small tunnel junctions",
1st HU-SKKU Workshop on Advanced Materials Research, Hiroshima,
Japan, Nov 16-17, 2006.
[S24] K. Utsunomiya, K. Tsuboi, T. Kubota, Y. Terao, Y. Ikebuchi, R. Yagi,
Quasi-Particle Recombination in mesoscopic superconducting wires,
Mesoscopic Superconductivity and Spintronics
(MS+S2006), Atsugi (NTT), Japan
Feb. 27-Mar.2, 2006.
[S23] K. Tsuboi,
K. Utsunomiya,
T. Kubota, Y. Terao, Y. Ikebuchi, R. Yagi,
Energy Distribution of Quasi-Particle Charge Density in Mesoscopic
Superconducting Wires
,
Mesoscopic Superconductivity and Spintronics
(MS+S2006), Atsugi,
Japan, Feb. 27-Mar.2 , 2006.
[S22] K. Utsunomiya and R. Yagi,
Effect of Quasi-particle injection on retrapping current of Josephson junction,
The 3rd Hiroshima Workshop NFM2F. Hiroshima University, Nov.
16-19, 2005.
[S21] T. Kubota and R. Yagi,
Transport property of Cr/CrOx/Cr Single Electron Transistor fabricated using
Plasma Oxidation ,
The 3rd Hiroshima Workshop NFM2F. Hiroshima University, Nov. 16-19,
2005.
[S20] H. Sera, Y. Ikebuchi and R. Yagi,
Observation of Non-Equilibrium Superconductivity Using DC-SQUID,
The 3rd Hiroshima Workshop NFM2F. Hiroshima University, Nov. 16-19,
2005.
[S19] R. Yagi,
Quasi-particle recombination in Narrow Superconducting Wires, 24th
International Conference on Low Temperature Physics, Florida, USA,
Aug. 10-17, 2005.
[S18] T. Kubota, R. Yagi,
Fabrication of Cr/CrOx/Cr Small Capacitance Junctions, 24th
International Conference on Low Temperature Physics,
Florida, USA, Aug. 10-17, 2005
[S17] R. Yagi,
Non-equilibrium Quasi-Particle Transport in Narrow Superconducting Wires,
Mesoscopic Superconductivity and Spintronics
(MS+S 2004), Atsugi (NTT), Japan, Mar. 1-4 , 2004.
[S16] Y. Ikebuchi and R. Yagi,
The 15th International Conference on Electronic Properties of
Two-Dimensional Systems (EP2DS), Nara, Japan, Jul. 14-18, 2003.
[S14] S. Sakita and R. Yagi,
Resistance Fluctuation in Narrow Ferromagnetic Wires,
International Conference on Low Temperature Physics, Hiroshima, Aug. 12-22, 2002
[S13] R．Yagi,
S. Kobayashi and Y. Ootuka, “Superconductor-Insulator Transition in Single Small
Josephson Junction with Normal Tunneling Junction and Ohmic Shunt Resistor”, 22
th International Conference on Low Temperature Physics (LT22), Helsinki,
Finland, Aug.4-11, 1999 (
invited )
[S12] R. Yagi, S. Kobayashi and
Y. Ootuka, “Dependence on Shunt Resistance and Distance on Single Small
Josephson Junctions”, Fourth International Symposium on New phenomena in
Mesoscopic Structures", Hawaii, USA, Dec. 6-12,1998.
[S11] R. Yagi, S. Kobayashi and
Y. Ootuka, “Superconductor-Insulator Transition in Single Small Josephson
Junction with Shunt Resistor”, International Workshop on Nano-Physics and
Electronics, Tokyo, Japan, Sep. 18-20, 1997.
[S10] R. Yagi, S. Kobayashi,“Superconductor-Insulator Transition in
Single Small Josephson Junction with Shunt Resistor”, CMD Condensed Matter
Division, Europian Physical Society, Leuven, Belgium, Aug.18-20, 1997.
[S9] R. Yagi, T. Yamaguchi, H. Kazawa and S. Kobayashi, “Phase Diagram
for Superconductor-Insulator Transitons in Two-Dimensional Network of Small
Tunnel Junctions”, International Conference on Low Temperature Physics (LT21),
Prague, Czech, Aug. 7-15, 1996.
[S8] R. Yagi, T. Yamaguchi, and
S. Kobayashi, “Effect of Finite System Width in Two-Dimensional Network of Small
Tunnel Junctions”, International Conference on Low Temperature Physics (LT21),
Prague, Czech, Aug. 7-15, 1996.
[S7] R. Yagi, T. Yamaguchi, H.
Kazawa and S. Kobayashi, “Capacitance Dependence of Critical Tunnelling
Resistance for Superconductor-Insulator Transition in Two-Dimensional Network of
Josephson Junctions”, Third International Symposium on New phenomena in
Mesoscopic Structures", Hawaii, USA, Dec.4-8,1995.
[S6]
R. Yagi and S. Kobayashi,
“Breakdown of Charge-Vortex Duality in Small Tunnel Junction Arrays with Finite
Width”, International Workshop on Mesoscopic Physics and Electronics (MPE 95),
Tokyo, Japan, Mar. 4-6, 1995.
[S5] Y. Iye, R. Yagi, Y. Hashimoto, and T. Ikoma, “Magnetoresistance in
Modulated Structures”, Second International Symposium on New phenomena in
Mesoscopic Structures, Hawaii, USA, Dec. 1992.
[S4] R. Yagi, Y. Iye, Y.
Hashimoto, T. Odagiri, H. Noguchi, H. Sakaki and T. Ikoma, “Angular Dependent
Magnetoresistance Oscillation in GaAs/AlxGa1-xAs Superlattice”, Electronic
Properties of Two-Dimensional Systems (The 9th international Conference) Nara,
Japan, Jul. 8-12, 1991.
[S3] R.Yagi, Y.Iye, T.Osada, and
S.Kagoshima, “Angular Dependent Oscillatory Magnetoresistance in
Quasi-Two-Dimensional Systems”, International Conference on Science and
Technology of Synthetic Metals (ICSM 90) Tubingen, Germany, Sep. 2-7, 1990.
[S2] T. Osada, R. Yagi, A.
Kawasumi, S. Kagoshima, N. Miura, M. Oshima, H. Mori, T. Nakamura, and G. Saito,
“Fermiology and unusual high-field magnetotransport in novel organicmetals
(BEDT-TTF)2XHg(SCN)4 (X=K,NH4)”, International
Conference on Science and Technology of Synthetic Metals (ICSM ‘90), Tubingen,
Germany, September 2-7, 1990.
[S1] T. Osada, R. Yagi, S.
Kagoshima, N. Miura, M. Oshima, and G. Saito, “High Field Magnetotransport in
the Organic Conductor (BEDT-TTF)2KHg(SCN)4”, Physics and
Chemistry of Organic Conductors, I.S.S.P. International Symposium, Tokyo, Japan,
Aug. 28-30, 1989.
招待公演
[R7]
八木隆多 「グラフェンの磁気輸送」
グラフェン・ナノ物理研究会,
秋田大学, 11/12
(2011).
[R6]
八木隆多 「グラフェンの電子輸送」
広島大学、物性セミナー第４００回記念講演会 11/1
(2011).
[R5] R. Yagi, “Magnetotransport
of graphene FET”, The
4th International Symposium on Atomic Technology, 17-18, Nov,2009,
Maiko, Japan.
[R5 ]八木隆多 「グラフェンの輸送現象（レビュー）」東京大学物性研究所短期研究会、ディラック電子系の物性―グラフェンおよび関連物質の最近の研究 2009年10/22-10/24.
東京大学（柏キャンパス）
[R4]
八木隆多 「超伝導準粒子注入」 佐々木学術シンポジウム2004年,12/22-23
東京大学（本郷キャンパス）
[R3]
八木隆多 「非平衡超伝導現象」
広島大学・総合科学部・永井研究室セミナー
2004年5月
[R2] R．Yagi,
S. Kobayashi and Y. Ootuka, “Superconductor-Insulator Transition in Single Small
Josephson Junction with Normal Tunneling Junction and Ohmic Shunt Resistor”, 22
th International Conference on Low Temperature Physics (LT22), Helsinki,
Finland, August 4-11, 1999.
[R1]
八木隆多 「微小トンネル接合における量子相転移」
東京大学・物性研究所・今田研究室セミナー東京大学（六本木キャンパス）1999年7月
受賞
井上研究奨励賞 （井上財団 1996年２月) （変調構造下の磁気抵抗振動）
学会、社会貢献活動
2015年 オープンキャンパス講義 未来物質グラフェン
2015年 広島大学理学部 中高生サイエンス大会 コメンテーター
2005年The
3rd Hiroshima Workshop NFM2F. Hiroshima University, Nov. 16-19, 2005,
organizing committee.
2000年
低温国際会議(LT23)
ポスター賞審査委員
1997-1998
日本物理学会 低温分科世話人
1988
放送大学面接授業（実験補助）
学内委員
低温センター運営委員 (2000-2002)
広島大学先進物質科学研究開発センター 運営委員
(-2017)
広島大学ナノデバイス研究センター 運営委員
(2003-2005)
広島大学低温センター低温だより編集委員長
(2000-2002)
広島大学理学部 入学試験委員（教育交流委員＋入試問題等検討委員）(2015-2017)
物理科学科学生チューター(2015-2017)
物理科学科学生チューター
(2015-2017)
免許など
高圧ガス保安責任者免状（乙種機械）
国内学会
省略