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Akihisa Koga
Akihisa Koga
Unknown affiliation
Verified email at phys.titech.ac.jp
Title
Cited by
Cited by
Year
Superconductivity without Inversion Symmetry: MnSi versus
PA Frigeri, DF Agterberg, A Koga, M Sigrist
Physical review letters 92 (9), 097001, 2004
7682004
Orbital-selective Mott transitions in the degenerate Hubbard model
A Koga, N Kawakami, TM Rice, M Sigrist
Physical review letters 92 (21), 216402, 2004
3612004
Quantum Phase Transitions in the Shastry-Sutherland Model for
A Koga, N Kawakami
Physical Review Letters 84 (19), 4461, 2000
2142000
Quantum phase transitions in the Hubbard model on a triangular lattice
T Yoshioka, A Koga, N Kawakami
Physical review letters 103 (3), 036401, 2009
1512009
Spin, charge, and orbital fluctuations in a multiorbital Mott insulator
A Koga, N Kawakami, TM Rice, M Sigrist
Physical Review B 72 (4), 045128, 2005
1112005
Stability of a metallic state in the two-orbital Hubbard model
A Koga, Y Imai, N Kawakami
Physical Review B 66 (16), 165107, 2002
812002
First-order quantum phase transition in the orthogonal-dimer spin chain
A Koga, K Okunishi, N Kawakami
Physical Review B 62 (9), 5558, 2000
742000
Superconductivity in non-centrosymmetric materials
M Sigrist, DF Agterberg, PA Frigeri, N Hayashi, RP Kaur, A Koga, I Milat, ...
Journal of magnetism and magnetic materials 310 (2), 536-540, 2007
702007
Frustrated Heisenberg antiferromagnet on the pyrochlore lattice
A Koga, N Kawakami
Physical Review B 63 (14), 144432, 2001
652001
Finite-temperature Mott transitions in the multiorbital Hubbard model
K Inaba, A Koga, S Suga, N Kawakami
Physical Review B 72 (8), 085112, 2005
622005
Correlation effects in two-dimensional topological insulators
Y Tada, R Peters, M Oshikawa, A Koga, N Kawakami, S Fujimoto
Physical Review B 85 (16), 165138, 2012
592012
Low-temperature properties of the infinite-dimensional attractive Hubbard model
A Koga, P Werner
Physical Review A 84 (2), 023638, 2011
532011
Competing spin-gap phases in a frustrated quantum spin system in two dimensions
Y Takushima, A Koga, N Kawakami
Journal of the Physical Society of Japan 70 (5), 1369-1374, 2001
512001
Phase diagrams of the two-orbital Hubbard model with different bandwidths
K Inaba, A Koga
Physical Review B 73 (15), 155106, 2006
502006
Ground-state and Thermodynamic Properties of an S = 1 Kitaev Model
A Koga, H Tomishige, J Nasu
Journal of the Physical Society of Japan 87 (6), 063703, 2018
492018
Field-induced phase transitions in a Kondo insulator
T Ohashi, A Koga, S Suga, N Kawakami
Physical Review B 70 (24), 245104, 2004
492004
Antiferromagnetic order in the Hubbard model on the Penrose lattice
A Koga, H Tsunetsugu
Physical Review B 96 (21), 214402, 2017
442017
Superconductivity on a quasiperiodic lattice: extended-to-localized crossover of Cooper pairs
S Sakai, N Takemori, A Koga, R Arita
Physical Review B 95 (2), 024509, 2017
432017
Ferromagnetism of cold fermions loaded into a decorated square lattice
K Noda, A Koga, N Kawakami, T Pruschke
Physical Review A 80 (6), 063622, 2009
432009
Supersolid state of ultracold fermions in optical lattice
A Koga, T Higashiyama, K Inaba, S Suga, N Kawakami
Journal of the Physical Society of Japan 77 (7), 073602, 2008
432008
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