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Recent publication

Papers

【2017】

1) Tailoring tricolor structure of magnetic topological insulator for robust axion insulator
M. Mogi, M. Kawamura, A. Tsukazaki, R. Yoshimi, K. S. Takahashi, M. Kawasaki, Y. Tokura
Science Advances 3, eaao1669 (2017).

2) Current-Nonlinear Hall Effect and Spin-Orbit Torque Magnetization Switching in a Magnetic Topological Insulator
K. Yasuda, A. Tsukazaki, R. Yoshimi, K. Kondou, K.S. Takahashi, Y. Otani, M. Kawasaki, Y. Tokura
Physical Review Letters 119, 137204 (2017).

3) Fabrication of tetragonal FeSe–FeS alloy films with high sulfur contents by alternate deposition
K. Fujiwara, J. Shiogai, A. Tsukazaki
Japanese Journal of Applied Physics 56, 100308 (2017).

4) Nonlinear response of a MgZnO/ZnO heterostructure close to zero bias
Q. Shi, J. Falson, M. A. Zudov, Y. Kozuka, A. Tsukazaki, M. Kawasaki, J. Smet
Physical Review B 96, 125401 (2017).

5) A versatile patterning process based on easily soluble sacrificial bilayers
T. Harada, A. Tsukazaki
AIP Advances 7, 085011 (2017).

6) Current-Driven Instability of the Quantum Anomalous Hall Effect in Ferromagnetic Topological Insulators
M. Kawamura, R. Yoshimi, A. Tsukazaki, K. S. Takahashi, M. Kawasaki, Y. Tokura
Physical Review Letters 119, 016803 (2017).

7) Enhanced electron mobility at the two-dimensional metallic surface of BaSnO3 electric-double-layer transistor at low temperatures
K. Fujiwara, K. Nishihara, J. Shiogai, A. Tsukazaki
Applied Physics Letters 110, 203503 (2017).

8) Observation of anomalous Hall effect in a non-magnetic two-dimensional electron system
D. Maryenko, A.S. Mishchenko, M.S. Bahramy, A. Ernst, J. Falson, Y. Kozuka, A. Tsukazaki, N. Nagaosa, M. Kawasaki
Nature Communications 8, 14777 (2017), DOI: 10.1038/ncomms14777.

9) Unified trend of superconducting transition temperature versus Hall coefficient for ultrathin FeSe films prepared on different oxide substrates
J. Shiogai, T. Miyakawa, Y. Ito, T. Nojima, A. Tsukazaki
Physical Review B 95, 115101 (2017).

10) A magnetic heterostructure of topological insulators as a candidate for an axion insulator
M.Mogi, M.Kawamura, R.Yoshimi, A. Tsukazaki, Y.Kozuka, N.Shirakawa, K.S.Takahashi, M.Kawasaki, Y.Tokura
Nature Materials 16, 516 (2017) .

11) Hall field-induced resistance oscillations in MgZnO/ZnO heterostructures
Q. Shi, M. A. Zudov, J. Falson, Y. Kozuka, A. Tsukazaki, M. Kawasaki, K. von Klitzing, J. Smet
Physical Review B 95, 041411 (2017) .

12) Alloy disorder modulated electron transport at MgxZn1-xO/ZnO heterointerface
A. Vishnuradhan, Y. Kozuka, M. Uchida, J. Falson, A. Tsukazaki, M. Kawasaki
AIP Advances 7, 015029 (2017).

【2016】

1) Direct observation of anisotropic magnetic field response of the spin helix in FeGe thin films
N. Kanazawa, J. S. White, H. M. Rønnow, C. D. Dewhurst, Y. Fujishiro, A. Tsukazaki, Y. Kozuka, M. Kawasaki, M. Ichikawa, F. Kagawa, Y. Tokura
Physical Review B 94, 184432 (2016).

2) Co thin films deposited directly on ZnO polar surfaces
D. Chiba, N. Shibata, A. Tsukazaki
Scientific Reports 6, 38005 (2016).

3) Large Unidirectional Magnetoresistance in a Magnetic Topological Insulator
K. Yasuda, A. Tsukazaki, R. Yoshimi, K.S. Takahashi, M. Kawasaki, Y. Tokura
Physical Review Letters 117, 127202 (2016) .

4) High field-effect mobility at the (Sr,Ba)SnO3/BaSnO3 interface
K. Fujiwara, K. Nishihara, J. Shiogai, A. Tsukazaki
AIP Advances 6, 085014 (2016).

5) Fermi-level-dependent charge-to-spin current conversion by Dirac surface states of topological insulators
K.Kondou, R.Yoshimi, A. Tsukazaki, Y.Fukuma, J.Matsuno, K.S.Takahashi, M.Kawasaki, Y.Tokura, Y.Otani
Nature Physics 12, 1027 (2016).

6) Zero-bias photocurrent in ferromagnetic topological insulator
N. Ogawa, R. Yoshimi, K. Yasuda, A. Tsukazaki, M. Kawasaki, Y. Tokura
Nature Communications 7, 12246 (2016), DOI: 10.1038/ncomms12246.

7) Terahertz spectroscopy on Faraday and Kerr rotations in a quantum anomalous Hall state
K. N. Okada, Y. Takahashi, M. Mogi, R. Yoshimi, A. Tsukazaki, K. S. Takahashi, N. Ogawa, M. Kawasaki, Y. Tokura
Nature Communications 7, 12245 (2016), DOI: 10.1038/ncomms12245.

8) Improvement of electron mobility in La:BaSnO3 thin films by insertion of an atomically flat insulating (Sr,Ba)SnO3 buffer layer
J. Shiogai, Kazuki Nishihara, Kazuhisa Sato, A. Tsukazaki
AIP Advances 6, 065305 (2016).

9) MgZnO/ZnO heterostructures with electron mobility exceeding 1 × 106 cm2/Vs
J. Falson, Y. Kozuka, M. Uchida, J. H. Smet, T. Arima, A. Tsukazaki, M. Kawasaki
Scientific Reports 6, 26598 (2016) .

10) Observation of the quantum Hall effect in δ-doped SrTiO3
Y. Matsubara, K.S. Takahashi, M.S. Bahramy, Y. Kozuka, D. Maryenko, J. Falson, A. Tsukazaki,Y. Tokura, M. Kawasaki
Nature Communications 7, 11631 (2016), DOI: 10.1038/ncomms11631.

11) Geometric Hall effects in topological insulator heterostructures
K. Yasuda, R.Wakatsuki, T. Morimoto, R. Yoshimi, A. Tsukazaki, K. S. Takahashi, M. Ezawa,M. Kawasaki, N. Nagaosa, Y. Tokura
Nature Physics 12, 555 (2016) .

12) All-in-all-out magnetic domain wall conduction in a pyrochlore iridate heterointerface
T. C. Fujita, M. Uchida, Y. Kozuka, W. Sano, A. Tsukazaki, T. Arima, M. Kawasaki
Physical Review B 93, 064419 (2016) .

13) Enhanced photogalvanic current in topological insulators via Fermi energy tuning
K. N. Okada, N. Ogawa, R. Yoshimi, A. Tsukazaki, K. S. Takahashi, M. Kawasaki, Y. Tokura
Physical Review B 93, 081403(R) (2016).

14) Quantum Hall effect in a bulk antiferromagnet EuMnBi2 with magnetically confined two-dimensional Dirac fermions
H. Masuda, H. Sakai, M. Tokunaga, Y. Yamasaki, A. Miyake, J. Shiogai, S. Nakamura, S. Awaji, A. Tsukazaki, H. Nakao, Y. Murakami, T. Arima, Y. Tokura, S. Ishiwata
Science Advances 2, e1501117 (2016).

15) Observation of microwave induced resistance and photovoltage oscillations in MgZnO/ZnO heterostructures
D. F. K¨archer, A. V. Shchepetilnikov, Yu. A. Nefyodov, J. Falson, I. A. Dmitriev, Y. Kozuka, D. Maryenko, A. Tsukazaki, S. I. Dorozhkin, I. V. Kukushkin, M. Kawasaki, J. H. Smet
Physical Review B 93, 041410(R) (2016).

16) All-in-all-out magnetic domain size in pyrochlore iridate thin films as probed by local magnetotransport
T. C. Fujita, M. Uchida, Y. Kozuka, S. Ogawa, A. Tsukazaki, T. Arima, M. Kawasaki
Applied Physics Letters 108, 022402 (2016).

17) Electric-field-induced superconductivity in electrochemically etched ultrathin FeSe films on SrTiO3 and MgO
J. Shiogai, Y. Ito, T. Mitsuhashi, T. Nojima, A. Tsukazaki
Nature Physics 12, 42 (2016) .

【2015】

1) Spin-Selective Electron Quantum Transport in Nonmagnetic MgZnO / ZnO Heterostructures
D. Maryenko, J. Falson, M. S. Bahramy, I. A. Dmitriev, Y. Kozuka, A. Tsukazaki, M. Kawasaki
Physical Review Letters 115, 197601 (2015).

2) Magnetic modulation doping in topological insulators toward higher-temperature quantum anomalous Hall effect
M. Mogi, R. Yoshimi, A. Tsukazaki, K. Yasuda, Y. Kozuka, K. S. Takahashi, M. Kawasaki, Y. Tokura
Applied Physics Letters 107, 182401 (2015).

3) Quantum Hall states stabilized in semi-magnetic bilayers of topological insulators
R. Yoshimi, K. Yasuda, A. Tsukazaki, K.S. Takahashi, N. Nagaosa, M. Kawasaki, Y. Tokura
Nature Communications 6, 8530 (2015), DOI: 10.1038/ncomms9530.

4) Formation of In-plane Skyrmions in Epitaxial MnSi Thin Films as Revealed by Planar Hall Effect
T. Yokouchi, N. Kanazawa, A. Tsukazaki, Y. Kozuka, A. Kikkawa, Y. Taguchi, M. Kawasaki, M. Ichikawa, F. Kagawa, Y. Tokura
Journal the Physical Society of Japan 84, 104708 (2015).

5) Electron scattering times in ZnO based polar heterostructures
J. Falson, Y. Kozuka, J. H. Smet, T. Arima, A. Tsukazaki, M. Kawasaki
Applied Physics Letters 107, 082102 (2015).

6) Magnetic Field-Induced Insulator-Semimetal Transition in a Pyrochlore Nd2Ir2O7
K. Ueda, J. Fujioka, B.-J. Yang, J. Shiogai, A. Tsukazaki, S. Nakamura, S. Awaji, N. Nagaosa, Y. Tokura
Physical Review Letters 115, 056402 (2015).

7) Topological Hall effect in thin films of the Heisenberg ferromagnet EuO
Y. Ohuchi, Y. Kozuka, M. Uchida, K. Ueno, A. Tsukazaki, M. Kawasaki
Physical Review B 91, 245115 (2015).

8) Odd-parity magnetoresistance in pyrochlore iridate thin films with broken time-reversal symmetry
T. C. Fujita, Y. Kozuka, M. Uchida, A. Tsukazaki, T. Arima, M. Kawasaki
Scientific Reports 5, 9711 (2015).

9) Quantum Hall effect on top and bottom surface states of topological insulator (Bi1-xSbx)2Te3 films
R. Yoshimi, A. Tsukazaki, Y. Kozuka, J. Falson, K.S. Takahashi, J.G. Checkelsky, N. Nagaosa, M. Kawasaki, Y. Tokura
Nature Communications 6, 6627 (2015), DOI: 10.1038/ncomms7627.

10) Even-denominator fractional quantum Hall physics in ZnO
J. Falson, D. Maryenko, B. Friess, D. Zhang, Y. Kozuka, A. Tsukazaki, J. H. Smet, M. Kawasaki
Nature Physics 11, 347 (2015).

11) Optical probing of MgZnO/ZnO heterointerface confinement potential energy levels
V. V. Solovyev, A. B. Van'kov, I. V. Kukushkin, J. Falson, D. Zhang, D. Maryenko, Y. Kozuka, A. Tsukazaki, J. H.Smet, M. Kawasaki
Applied Physics Letters 106, 082102 (2015).

12) Microwave magnetoplasma resonances of two-dimensional electrons in MgZnO/ZnO heterojunctions
V. E. Kozlov, A. B. Van’kov, S. I. Gubarev, I. V. Kukushkin, V. V. Solovyev, J. Falson, D. Maryenko, Y. Kozuka, A. Tsukazaki, M. Kawasaki, J. H. Smet
Physical Review B 91, 085304 (2015).

13) Discretized topological Hall effect emerging from skyrmions in constricted geometry
N. Kanazawa, M. Kubota, A. Tsukazaki, Y. Kozuka, K. S. Takahashi, M. Kawasaki, M. Ichikawa, F. Kagawa, Y. Tokura
Physical Review B 91, 041122(R) (2015).

14) Calibration and control of in-plane Mg doping distribution in MgxZn1-xO/ZnO heterostructures grown by molecular beam epitaxy
M. Uchida, J. Falson, Y. Segawa, Y. Kozuka, A. Tsukazaki, M. Kawasaki
Japanese Journal of Applied Physics 54, 028004 (2015).

【2014】

1) Polarization-dependent Landau level crossing in a two-dimensional electron system in a MgZnO/ZnO heterostructure
D. Maryenko, J. Falson, Y. Kozuka, A. Tsukazaki, M. Kawasaki
Physical Review B 90, 245303 (2014).

2) Air-gap gating of MgZnO/ZnO heterostructures
T. Tambo, J. Falson, D. Maryenko, Y. Kozuka, A. Tsukazaki, M. Kawasaki
Journal of Applied Physics 116, 084310(2014) .

3) Trajectory of the anomalous Hall effect towards the quantized state in a ferromagnetic topological insulator
J. G. Checkelsky, R. Yoshimi, A. Tsukazaki, K. S. Takahashi, Y. Kozuka, J. Falson, M. Kawasaki, Y. Tokura
Nature Physics 10,731 (2014).

4) Spontaneous polarization driven Mg concentration profile reconstruction in MgZnO/ZnO heterostructures
K. Imasaka, J. Falson, Y. Kozuka, A. Tsukazaki, M. Kawasaki
Applied Physics Letters 104, 242112 (2014).

5) Photoinduced sign inversion of the anomalous Hall effect in EuO thin films
Y. Ohuchi, Y. Kozuka, N. Rezaei, M. S. Bahramy, R. Arita, K. Ueno, A. Tsukazaki, M. Kawasaki
Physical Review B 89, 121114(R) (2014).

6) Stability of two-dimensional skyrmions in thin films of Mn1−xFexSi investigated by the topological Hall effect
T. Yokouchi, N. Kanazawa, A. Tsukazaki, Y. Kozuka, M. Kawasaki, M.Ichikawa, F. Kagawa, Y. Tokura
Physical Review B 89, 064416 (2014).

7) Enhanced quantum oscillatory magnetization and nonequilibrium currents in an interacting two-dimensional electron system in MgZnO/ZnO with repulsive scatterers
M. Brasse, S. M. Sauther, J. Falson, Y. Kozuka, A. Tsukazaki, Ch. Heyn, M. A. Wilde, M. Kawasaki, D. Grundler
Physical Review B 89, 075307 (2014).

8) Dirac electron states formed at heterointerface between a topological-insulator and a conventional semiconductor
R. Yoshimi, A. Tsukazaki, K. Kikutake, J. G. Checkelsky, K. S.Takahashi, M. Kawasaki, Y. Tokura
Nature Materials 13, 253 (2014).

9) Surface and interface engineering of ZnO based heterostructures fabricated by pulsed-laser deposition
A. Tsukazaki, A Ohtomo, M Kawasaki
Journal of Physics D: Applied Physics 47, 034003 (2014).

10) Challenges and opportunities of ZnO-related single crystalline heterostructures
Y. Kozuka, A. Tsukazaki, M. Kawasaki
Appl. Phys. Rev. 1, 011303 (2014).

【2013】

1) Observation of Plasma and Magnetoplasma Resonances of Two-Dimensional Electrons in a Single MgZnO/ZnO Heterojunction
V. E. Kozlov, A. B. Van’kov, S. I. Gubarev, I. V. Kukushkin,, J. Falson, D. Maryenko, Y. Kozuka, A. Tsukazaki, M. Kawasaki, J. H. Smet
JETP Letters 98, 223 (2013).

2) Systematic control of stree-induced anisotropy in pseudomorphic iron garnet thin films
M. Kubota, K. Shibuya, Y. Tokunaga, F. Kagawa, A. Tsukazaki, Y. Tokura, M. Kawasaki
J. Magn. Magn. Mater. 339, 63 (2013).

3) Rashba Spin-orbit interaction in a MgxZn1-xO/ZnO two-dimensional electron gas studied by electrically-detected electron spin resonance
Y. Kozuka, S. Teraoka, J. Falson, A. Oiwa, A. Tsukazaki, S. Tarucha, M. Kawasaki
Physical Review B 87, 205411 (2013).

4) Robust formation of skyrmions and topological Hall effect anomaly in epitaxial thin films of MnSi
Yufan Li, N. Kanazawa, X. Z. Yu, A. Tsukazaki, M. Kawasaki, M. Ichikawa, X. F. Jin, F. Kagawa, Y. Tokura
Physical Review Letters 110, 117202 (2013).

5) Magneto-photoluminescence of charged excitons from MgxZn1-xO/ZnO heterojunctions
T. Makino, Y. Segawa, A. Tsukazaki, R. Shen, S. Takeyama, H. Yuji, Y. Nishimoto, S. Akasaka, D. Takamizu, K. Nakahara, T. Tanabe, A. Kamisawa, M. Kawasaki
Physical Review B 87, 085312 (2013).

Others

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