Publications (85)
Large linear magnetoresistance in the Dirac semimetal TlBiSSe
Mario Novak, Satoshi Sasaki, Kouji Segawa +1
Magnetoresistance of Untwinned YBa_{2}Cu_{3}O_{y} Single Crystals in a Wide Range of Doping: Anomalous Hole-Doping Dependence of the Coherence Length
Yoichi Ando, Kouji Segawa
Thermodynamic and transport properties of underdoped cuprates from ARPES data
T. Yoshida, X. J. Zhou, H. Yagi +11
Constant effective mass across the phase diagram of high-T$_{c}$ cuprates
W. J. Padilla, Y. S. Lee, M. Dumm +6
Observations of two-dimensional quantum oscillations and ambipolar transport in the topological insulator Bi2Se3 achieved by Cd doping
Zhi Ren, A. A. Taskin, Satoshi Sasaki +2
Additional Evidence for the Surface Origin of the Peculiar Angular-Dependent Magnetoresistance Oscillations Discovered in a Topological Insulator Bi_{1-x}Sb_{x}
A. A. Taskin, Kouji Segawa, Yoichi Ando
Odd-Parity Pairing and Topological Superconductivity in a Strongly Spin-Orbit Coupled Semiconductor
Satoshi Sasaki, Zhi Ren, A. A. Taskin +3
Magnetotransport study of the charged stripes in high-T_c cuprates
Yoichi Ando, A. N. Lavrov, Kouji Segawa
Electronic Phase Diagram of High-T_c Cuprate Superconductors from a Mapping of the In-Plane Resistivity Curvature
Yoichi Ando, Seiki Komiya, Kouji Segawa +2
Large bulk resistivity and surface quantum oscillations in the topological insulator Bi2Te2Se
Zhi Ren, A. A. Taskin, Satoshi Sasaki +2
Bulk superconducting phase with a full energy gap in the doped topological insulator Cu_xBi_2Se_3
M. Kriener, Kouji Segawa, Zhi Ren +2
Disparities in the Josephson vortex state electrodynamics of high-Tc cuprates
A. D. LaForge, W. J. Padilla, K. S. Burch +5
Strong-coupling Effects in cuprate High-$T_{c}$ Superconductors by magnetooptical studies
Y. S. Lee, Z. Q. Li, W. J. Padilla +5
Transport Anomalies and the Role of Pseudogap in the "60-K Phase" of YBa_{2}Cu_{3}O_{7-δ}
Kouji Segawa, Yoichi Ando
Unexpected mass acquisition of Dirac fermions at the quantum phase transition of a topological insulator
T. Sato, Kouji Segawa, K. Kosaka +6
Manipulation of Topological States and Bulk Band Gap Using Natural Heterostructures of a Topological Insulator
K. Nakayama, K. Eto, Y. Tanaka +5
Anomalous suppression of the superfluid density in the CuxBi2Se3 superconductor upon progressive Cu intercalation
M. Kriener, Kouji Segawa, Satoshi Sasaki +1
Coherence and superconductivity in coupled one-dimensional chains: a case study of YBa$_{2}$Cu$_{3}$O$_{y}$
Y. S. Lee, Kouji Segawa, Yoichi Ando +1
Work function of bulk-insulating topological insulator Bi2-xSbxTe3-ySey
Daichi Takane, Seigo Souma, Takafumi Sato +3
Anomalous metallic state above the upper critical field of the conventional three-dimensional superconductor AgSnSe2 with strong intrinsic disorder
Zhi Ren, M. Kriener, A. A. Taskin +3
Ando, Lavrov, and Segawa Reply
Yoichi Ando, A. N. Lavrov, Kouji Segawa
Direct Observation of Nonequivalent Fermi-Arc States of Opposite Surfaces in Noncentrosymmetric Weyl Semimetal NbP
S. Souma, Zhiwei Wang, H. Kotaka +9
Pb_{5}Bi_{24}Se_{41}: A New Member of the Homologous Series Forming Topological Insulator Heterostructures
Kouji Segawa, A. A. Taskin, Yoichi Ando
Universal scaling for the spin-electricity conversion on surface states of topological insulators
K. T. Yamamoto, Y. Shiomi, Kouji Segawa +2
Unexpectedly robust protection from backscattering in the topological insulator Bi$_{1.5}$Sb$_{0.5}$Te$_{1.7}$Se$_{1.3}$
Sunghun Kim, Shunsuke Yoshizawa, Yukiaki Ishida +5
Specific-heat evidence for strong electron correlations in the thermoelectric material (Na,Ca)Co_{2}O_{4}
Yoichi Ando, N. Miyamoto, Kouji Segawa +2
Magnetoresistance Anomalies in Antiferromagnetic YBa_2Cu_3O_{6+x}: Fingerprints of Charged Stripes
Yoichi Ando, A. N. Lavrov, Kouji Segawa
Quasiparticle dynamics and in-plane anisotropy in $Y Ba_2 Cu_3 O_y$ system near onset of superconductivity
Y. -S. Lee, Kouji Segawa, Yoichi Ando +1
Magnetotransport properties of untwinned YBa_{2}Cu_{3}O_{y} single crystals: Novel 60-K-phase anomalies in the charge transport
Yoichi Ando, Kouji Segawa
Spin-Orbit Coupling and Anomalous Angular-Dependent Magnetoresistance in the Quantum Transport Regime of PbS
Kazuma Eto, A. A. Taskin, Kouji Segawa +1
Topological Surface Transport in Epitaxial SnTe Thin Films Grown on Bi2Te3
A. A. Taskin, Fan Yang, Satoshi Sasaki +2
Direct Observation of the Topological Surface States in Lead-Based Ternary Telluride Pb(Bi1-xSbx)2Te4
S. Souma, K. Eto, M. Nomura +5
Top gating of epitaxial (Bi_{1-x}Sb_x)2Te3 topological insulator thin films
Fan Yang, A. A. Taskin, Satoshi Sasaki +4
Evolution of the Hall Coefficient and the Peculiar Electronic Structure of the Cuprate Superconductors
Yoichi Ando, Y. Kurita, Seiki Komiya +2
Electrical Resistivity Anisotropy from Self-Organized One-Dimensionality in High-Temperature Superconductors
Yoichi Ando, Kouji Segawa, Seiki Komiya +1
Ferromagnetism in Cr-doped topological insulator TlSbTe2
Zhiwei Wang, Kouji Segawa, Satoshi Sasaki +2
Observation of Two-Dimensional Bulk Electronic States in a Superconducting Topological Insulator Heterostructure Cux(PbSe)5(Bi2Se3)6: Implications for Unconventional Superconductivity
K. Nakayama, H. Kimizuka, Y. Tanaka +6
Anomalous dressing of Dirac fermions in the topological surface state of Bi2Se3, Bi2Te3, and CuxBi2Se3
Takeshi Kondo, Y. Nakashima, Y. Ota +8
Manifestations of the Charged Stripes in the Magnetoresistance of Heavily Underdoped YBa_2Cu_3O_{6+x}
A. N. Lavrov, Yoichi Ando, Kouji Segawa
Charge Transport Properties of Lightly-Doped Cuprates: Behavior of the Hall Coefficient
Yoichi Ando, Kouji Segawa, A. N. Lavrov +1
Nano-mosaic of Topological Dirac States on the Surface of Pb5Bi24Se41 Observed by Nano-ARPES
Kosuke Nakayama, Seigo Souma, Chi Xuan Trang +9
Switching of Charge-Current-Induced Spin Polarization in the Topological Insulator BiSbTeSe2
Fan Yang, Subhamoy Ghatak, A. A. Taskin +7
A new superconductor derived from topological insulator heterostructure
Satoshi Sasaki, Kouji Segawa, Yoichi Ando
Bulk topological insulators as inborn spintronics detectors
Y. Shiomi, K. Nomura, Y. Kajiwara +5
Observation of Dirac Holes and Electrons in a Topological Insulator
A. A. Taskin, Zhi Ren, Satoshi Sasaki +2
Charge Localization from Local Destruction of Antiferromagnetic Correlation in Zn-doped YBa2Cu3O7-d
Kouji Segawa, Yoichi Ando
Optimizing the Bi_(2-x)Sb_(x)Te_(3-y)Se_(y) solid solutions to approach the intrinsic topological insulator regime
Zhi Ren, A. A. Taskin, Satoshi Sasaki +2
Topological Superconductivity in CuxBi2Se3
Satoshi Sasaki, M. Kriener, Kouji Segawa +4
Revealing puddles of electrons and holes in compensated topological insulators
N. Borgwardt, J. Lux, I. Vergara +7
Two types of Dirac-cone surface states on (111) surface of topological crystalline insulator SnTe
Y. Tanaka, T. Shoman, K. Nakayama +6
Fermiology of Strongly Spin-Orbit Coupled Superconductor Sn1-xInxTe and its Implication to Topological Superconductivity
T. Sato, Y. Tanaka, K. Nakayama +7
Metal-to-Insulator Crossover in YBa_{2}Cu_{3}O_{y} Probed by Low-Temperature Quasiparticle Heat Transport
X. F. Sun, Kouji Segawa, Yoichi Ando
Unusual Charge Localization in Zn-doped and Heavily Underdoped YBa2Cu3O7-d at Low Temperatures
Kouji Segawa, Yoichi Ando
Pitfalls in the analysis of low-temperature thermal conductivity of high-Tc cuprates
Yoichi Ando, X. F. Sun, Kouji Segawa
Spin-Polarized Quantum Well States on Bi$_{2-x}$Fe$_x$Se$_3$
Michael M. Yee, Z. -H. Zhu, Anjan Soumyanarayanan +8
Instantaneous Photon Drag Currents in Topological Insulators
Yoshito Onishi, Zhi Ren, Mario Novak +3
Low-temperature nodal-quasiparticle transport in lightly doped YBa_{2}Cu_{3}O_{y} near the edge of the superconducting doping regime
X. F. Sun, Kouji Segawa, Yoichi Ando
Universal critical behavior in single crystals and films of YBa$_2$Cu$_3$O$_{7-δ}$
Hua Xu, Su Li, M. C. Sullivan +4
Magnetoresistance in Heavily Underdoped YBa_2Cu_3O_{6+x}: Antiferromagnetic Correlations and Normal-State Transport
A. N. Lavrov, Yoichi Ando, Kouji Segawa +1
Relationship between Fermi-Surface Warping and Out-of-Plane Spin Polarization in Topological Insulators: a View from Spin-Resolved ARPES
M. Nomura, S. Souma, A. Takayama +5
Doping n-type carriers by La-substitution for Ba in YBa_2Cu_3O_y system
Kouji Segawa, Yoichi Ando
Intrinsic Hall response of the CuO2 planes in a chain-plane-composite system of YBa2Cu3Oy
Kouji Segawa, Yoichi Ando
Electronic Inhomogeneity and Breakdown of the Universal Thermal Conductivity in Cuprate Superconductors
X. F. Sun, S. Ono, Yasushi Abe +3
Electrodynamics of the Nodal Metal in Weakly Doped High-$T_{c}$ Cuprates
Y. S. Lee, Kouji Segawa, Z. Q. Li +6
Direct Evidence for the Dirac-Cone Topological Surface States in Ternary Chalcogenide TlBiSe2
Takafumi Sato, Kouji Segawa, Hua Guo +4
Spin Polarization of Gapped Dirac Surface States Near the Topological Phase Transition in TlBi(S1-xSex)2
S. Souma, M. Komatsu, M. Nomura +6
Chemical potential jump between hole- and electron-doped sides of ambipolar high-Tc cuprate
M. Ikeda, M. Takizawa, T. Yoshida +3
Electrical detection of the spin polarization due to charge flow in the surface state of the topological insulator Bi_1.5 Sb_0.5 Te_1.7 Se_1.3
Yuichiro Ando, Takahiro Hamasaki, Takayuki Kurokawa +7
Quantum Spin Excitations through the metal-to-insulator crossover in $Y Ba_2 Cu_3 O_{6+y}$
Shiliang Li, Zahra Yamani, Hye Jung Kang +5
Thermodynamic evidence for nematic superconductivity in Cu$_x$Bi$_2$Se$_3$
Shingo Yonezawa, Kengo Tajiri, Suguru Nakata +5
Electrochemical synthesis and superconducting phase diagram of Cu_xBi2Se3
M. Kriener, Kouji Segawa, Zhi Ren +4
Unusual nature of fully-gapped superconductivity in In-doped SnTe
Mario Novak, Satoshi Sasaki, Markus Kriener +2
Manifestation of Topological Protection in Transport Properties of Epitaxial Bi2Se3 Thin Films
A. A. Taskin, Satoshi Sasaki, Kouji Segawa +1
Fermi level tuning and a large activation gap achieved in the topological insulator Bi_{2}Te_{2}Se by Sn doping
Zhi Ren, A. A. Taskin, Satoshi Sasaki +2
Experimental realization of a topological crystalline insulator in SnTe
Y. Tanaka, Zhi Ren, T. Sato +5
Metal-insulator transition and tunable Dirac-cone surface state in the topological insulator TlBi1-xSbxTe2 studied by angle-resolved photoemission
Chi Xuan Trang, Zhiwei Wang, Keiko Yamada +5
Tunability of the k-space Location of the Dirac Cones in the Topological Crystalline Insulator Pb1-xSnxTe
Y. Tanaka, T. Sato, K. Nakayama +6
Ambipolar transport in bulk crystals of a topological insulator by gating with ionic liquid
Kouji Segawa, Zhi Ren, Satoshi Sasaki +3
Angular-dependent oscillations of the magnetoresistance in Bi_2Se_3 due to the three-dimensional bulk Fermi surface
Kazuma Eto, Zhi Ren, A. A. Taskin +2
Mobility of the Doped Holes and the Antiferromagnetic Correlations in Underdoped High-T_c Cuprates
Yoichi Ando, A. N. Lavrov, Seiki Komiya +2
Carrier concentrations in Bi_{2}Sr_{2-z}La_{z}CuO_{6+δ} single crystals and their relation to Hall coefficient and thermopower
Yoichi Ando, Y. Hanaki, S. Ono +4
Doping-dependent charge dynamics in CuxBi2Se3
Luke J. Sandilands, Anjan A. Reijnders, Markus Kriener +4
The Hall effect in Zn-doped YBa_{2}Cu_{3}O_{7-δ} revisited: Hall angle and the pseudogap
Yasushi Abe, Kouji Segawa, Yoichi Ando
Oscillatory angular dependence of the magnetoresistance in a topological insulator Bi_{1-x}Sb_{x}
A. A. Taskin, Kouji Segawa, Yoichi Ando
Direct Measurement of the Out-of-Plane Spin Texture in the Dirac Cone Surface State of a Topological Insulator
S. Souma, K. Kosaka, T. Sato +6