555 citations · 3.1k across the 50 of their papers we have counts for
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Observation of local atomic displacements intrinsic to the double zigzag chain structure of 1T-MTe2 (M = V, Nb, Ta)
N. Katayama, Y. Matsuda, K. Kojima +7
We describe the existence of local distortion discovered in the synchrotron x-ray single-crystal structure analysis of layered ditelluride 1T-MTe2 (M = V, Nb, Ta). In 1T-TaTe2, the…
Unveiling the orbital-selective electronic band reconstruction through the structural phase transition in TaTe
Natsuki Mitsuishi, Yusuke Sugita, Tomoki Akiba +8
Tantalum ditelluride TaTe belongs to the family of layered transition metal dichalcogenides but exhibits a unique structural phase transition at around 170 K that accompanies t…
Ultrafast Control of Crystal Structure in a Topological Charge-Density-Wave Material
Takeshi Suzuki, Yuya Kubota, Natsuki Mitsuishi +15
Optical control of crystal structures is a promising route to change physical properties including topological nature of a targeting material. Time-resolved X-ray diffraction measu…
Competing spin modulations in a magnetically frustrated semimetal EuCuSb
Hidefumi Takahashi, Kai Aono, Yusuke Nambu +6
The competing magnetic ground states of the itinerant magnet EuCuSb, which has a hexagonal layered structure, were studied via magnetization, resistivity, and neutron diffraction m…
Ultrafast nematic-orbital excitation in FeSe
T. Shimojima, Y. Suzuki, A. Nakamura +7
The electronic nematic phase is an unconventional state of matter that spontaneously breaks the rotational symmetry of electrons. In iron-pnictides/chalcogenides and cuprates, the…
Pseudogap-related charge dynamics in layered-nickelate R2-xSrxNiO4 (x sim 1)
M. Uchida, Y. Yamasaki, Y. Kaneko +5
Charge dynamics and its critical behavior are investigated near the metal-insulator transition of layered-nickelate R2-xSrxNiO4 (R=Nd, Eu). The polarized x-ray absorption spectrosc…
Coexisting pseudo-gap and superconducting gap in the high-Tc superconductor La2-xSrxCuO4
T. Yoshida, W. Malaeb, S. Ideta +12
Relationship between the superconducting gap and the pseudogap has been the subject of controversies. In order to clarify this issue, we have studied the superconducting gap and ps…
Orbital characters of three-dimensional Fermi surfaces in Eu2-xSrxNiO4 as probed by soft-x-ray angle-resolved photoemission spectroscopy
M. Uchida, K. Ishizaka, P. Hansmann +13
The three-dimensional Fermi surface structure of hole-doped metallic layered nickelate Eu2-xSrxNiO4 (x=1.1), an important counterpart to the isostructural superconducting cuprate L…
Femtosecond core level photoemision spectroscopy on 1T-TaS2 using 60 eV laser source
K. Ishizaka, T. Kiss, T. Yamamoto +11
Time-resolved photoelectron spectroscopy (trPES) can directly detect transient electronic structure, thus bringing out its promising potential to clarify nonequilibrium processes a…
Pseudogap of metallic layered nickelate R2-xSrxNiO4 (R=Nd, Eu) crystals measured using angle-resolved photoemission spectroscopy
M. Uchida, K. Ishizaka, P. Hansmann +11
We have investigated charge dynamics and electronic structures for single crystals of metallic layered nickelates, R2-xSrxNiO4 (R=Nd, Eu), isostructural to La2-xSrxCuO4. Angle-reso…
Electronic structure of an antiferromagnetic metal: CaCrO3
P. A. Bhobe, A. Chainani, M. Taguchi +11
We report on the electronic structure of the perovskite oxide CaCrO3 using valence-band, core-level, and Cr 2p - 3d resonant photoemission spectroscopy (PES). Despite its antiferro…
Evidence for a correlated insulator to antiferromagnetic metal transition in CrN
P. A. Bhobe, A. Chainani, M. Taguchi +15
We investigate the electronic structure of Chromium Nitride (CrN) across the first-order magneto-structural transition at T_N ~ 286 K. Resonant photoemission spectroscopy shows a g…
Strong valence fluctuation in the quantum critical heavy fermion superconductor beta-YbAlB4: A hard x-ray photoemission study
M. Okawa, M. Matsunami, K. Ishizaka +12
Electronic structures of the quantum critical superconductor beta-YbAlB4 and its polymorph alpha-YbAlB4 are investigated by using bulk-sensitive hard x-ray photoemission spectrosco…
Distorted Perovskite with e_g^1 Configuration as a Frustrated Spin System
T. Kimura, S. Ishihara, H. Shintani +4
The evolution of spin- and orbital-ordered states has been systematically investigated for a series of insulating perovskites MnO (=La,Pr,Nd,...). MnO with a large…
Spontaneous rearrangement of the checkerboard charge order to stripe order in La1.5Sr0.5NiO4
R. Kajimoto, K. Ishizaka, H. Yoshizawa +1
The charge ordering in La1.5Sr0.5NiO4 has been studied with neutron diffraction technique. An interesting rearrangement of the charge ordering was observed as a function of tempera…