Publications (5)
Laser-based angle-resolved photoemission spectroscopy with micrometer spatial resolution and detection of three-dimensional spin vector
Takuma Iwata, T. Kousa, Y. Nishioka +11
We have developed a state-of-the-art apparatus for laser-based spin- and angle-resolved photoemission spectroscopy with micrometer spatial resolution (micro-SARPES). This equipment…
A general route to form topologically-protected surface and bulk Dirac fermions along high-symmetry lines
O. J. Clark, F. Mazzola, I. MarkoviÄ +11
The band inversions that generate the topologically non-trivial band gaps of topological insulators and the isolated Dirac touching points of three-dimensional Dirac semimetals gen…
Experimental realization of type-II Weyl state in non-centrosymmetric TaIrTe
E. Haubold, K. Koepernik, D. Efremov +14
Recent breakthrough in search for the analogs of fundamental particles in condensed matter systems lead to experimental realizations of 3D Dirac and Weyl semimetals. Weyl state can…
Ultrafast electron dynamics in a topological surface state observed in two-dimensional momentum space
J. Reimann, K. Sumida, M. Kakoki +5
We study ultrafast population dynamics in the topological surface state of SbTe in two-dimensional momentum space with time- and angle-resolved two-photon photoemission. Li…
Enhanced - hybridization intertwined with anomalous ground state formation in van der Waals-coupled magnetic metal FeGeTe
K. Yamagami, Y. Fujisawa, M. Pardo-Almanza +4
FeGeTe is a van der Waals (vdW)-coupled unconventional ferromagnetic metal with a high Curie temperature () exceeding 300 K. The formation of an anomalous ground state…