S. Souma

Tohoku University — Japan

Physics and Astronomy · Physical Sciences

45h-index8.9kcitations207works17.72yr avg
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Research Topics

Topological Materials and Phenomena(95), Iron-based superconductors research(50), Graphene research and applications(47), Physics of Superconductivity and Magnetism(40), Advanced Condensed Matter Physics(38)

Publications207 total

Spin-degenerate bulk bands and topological surface states associated with Dirac nodal lines in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msub> <mml:mi>RuO</mml:mi> <mml:mn>2</mml:mn> </mml:msub> </mml:math>
Physical review. B./Physical review. B·2026· 2 citedOpen Access
Direct observation of band structure modifications from monolayer WSe2 to Janus WSSe
arXiv (Cornell University)·2025Open Access
Ultrafast relaxation dynamics and nonequilibrium processes in graphite
Physical review. B./Physical review. B·2025· 1 cited
Spin-valley coupling enhanced high-TC ferromagnetism in a non-van der Waals monolayer Cr2Se3 on graphene
Nature Communications·2025· 4 citedOpen Access
Experimental verification of terahertz surface plasmon resonance using the Dirac electron system Bi<sub>2</sub>Se<sub>x</sub>Te<sub>(3-x)</sub>
Optical Materials Express·2025· 1 citedOpen Access
Ferromagnetism triggered by band tripling in ruthenate <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>Sr</mml:mi><mml:mn>4</mml:mn></mml:msub><mml:msub><mml:mi>Ru</mml:mi><mml:mn>3</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn>10</mml:mn></mml:msub></mml:mrow></mml:math>
Physical review. B./Physical review. B·2024
Evolution of band structure in the kagome superconductor <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mtext>Cs(V</mml:mtext><mml:mrow><mml:mn>1</mml:mn><mml:mo>−</mml:mo><mml:mi>x</mml:mi></mml:mrow></mml:msub><mml:msub><mml:mtext>Cr</mml:mtext><mml:mi>x</mml:mi></mml:msub><mml:msub><mml:mrow><mml:mo>)</mml:mo></mml:mrow><mml:mn>3</mml:mn></mml:msub><mml:msub><mml:mtext>Sb</mml:mtext><mml:mn>5</mml:mn></mml:msub></mml:mrow></mml:math>: Toward universal understanding of charge density wave and superconducting phase diagrams
Physical review. B./Physical review. B·2024· 3 cited
Universal role of combined symmetry for the protection of the Dirac cone in antiferromagnetic topological insulators
Physical review. B./Physical review. B·2024· 2 cited
Evolution of Band Structure in a Kagome Superconductor Cs(V1-xCrx)3Sb5: Toward Universal Understanding of CDW and Superconducting Phase Diagrams
arXiv (Cornell University)·2024Open Access
Universal Role of Combined Symmetry for the Protection of the Dirac Cone in Antiferromagnetic Topological Insulators
arXiv (Cornell University)·2024Open Access
Observation of edge states derived from topological helix chains
Nature·2024· 16 cited
Indication of exchange interaction induced spin splitting in unoccupied electronic states of the high-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>T</mml:mi><mml:mi>C</mml:mi></mml:msub></mml:math> ferromagnet (<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>Cr</mml:mi><mml:mrow><mml:mn>0.35</mml:mn></mml:mrow></mml:msub><mml:msub><mml:mi>Sb</mml:mi><mml:mrow><mml:mn>0.65</mml:mn></mml:mrow></mml:msub><mml:msub><mml:mrow><mml:mo>)</mml:mo></mml:mrow><mml:mn>2</mml:mn></mml:msub><mml:mi>Te</mml:mi><mml:msub><mml:mrow/><mml:mn>3</mml:mn></mml:msub></mml:mrow></mml:math>
Physical review. B./Physical review. B·2024· 1 cited
Observation of a giant band splitting in altermagnetic MnTe
Physical review. B./Physical review. B·2024· 200 cited
Antiferromagnetic topological insulator with selectively gapped Dirac cones
Nature Communications·2023· 11 citedOpen Access
Moiré‐Assisted Realization of Octahedral MoTe<sub>2</sub> Monolayer
Advanced Science·2023· 3 citedOpen Access
Switching of charge-density wave by carrier tuning in monolayer <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi mathvariant="normal">TiTe</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:math>
Physical Review Materials·2023· 2 cited
180$^\circ$-twisted bilayer ReSe$_2$ as an artificial noncentrosymmetric semiconductor
arXiv (Cornell University)·2023Open Access
Unusual surface states associated with <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi mathvariant="script">PT</mml:mi></mml:math>-symmetry breaking and antiferromagnetic band folding in NdSb
Physical review. B./Physical review. B·2023· 12 cited
Observation of Giant Band Splitting in Altermagnetic MnTe
arXiv (Cornell University)·2023· 5 citedOpen Access
Unusual band evolution and persistence of topological surface states in high-T_C magnetic topological insulator
arXiv (Cornell University)·2023Open Access
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Frequent Co-authors

T. Sato(47), T. Takahashi(35), K. Nakayama(24), Yoichi Ando(18), Kouji Segawa(16), Hong Ding(11), K. Sugawara(11), A. Takayama(10), T. Takahashi(10), P. Richard(7), Yukio Tanaka(6), Tamio Oguchi(6), Z. Wang(5), Daichi Takane(5), Kazuma Eto(5), Yoichi Sekiba(4), Koji Horiba(4), Hiroshi Kumigashira(4), H. Matsui(4), Kunihiko Yamauchi(4)