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Related papers: Electronic Structures of Fe$_{3-x}V$_x$Si Probed b…

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We revisit the electronic structure of BaFe$_2$As$_2$, the archetypal parent compound of the Fe-based superconductors, using angle-resolved photoemission spectroscopy (ARPES). Our high-resolution measurements of samples detwinned by the…

Epitaxial thin films of SrTiO$_3$(100) doped with 6% and 12% Ni are studied with resonant angle-resolved photoelectron spectroscopy (ARPES) at the Ti and Ni L2,3-edges. We find that the Ni doping shifts the valence band (VB) of pristine…

We investigate the electronic structure of Sr$_2$FeMoO$_6$ combining photoemission spectroscopy with a wide range of photon energies and electronic structure calculations based on first-principle as well as model Hamiltonian approaches to…

Strongly Correlated Electrons · Physics 2007-05-23 Sugata Ray , Priya Mahadevan , Ashwani Kumar , D. D. Sarma , R. Cimino , M. Pedio , L. Ferrari , A. Pesci

In this paper, high Fe-concentration Fe$_{1-x}$Ni$_{x}$ alloys were investigated using high resolution X-ray photoelectron spectroscopy (XPS) down to 10K temperature. The Fe 2s core level exhibits three features, two low binding features…

Strongly Correlated Electrons · Physics 2019-05-14 S. S. Acharya

A heavy-fermion paramagnet UTe$_2$ has been a strong candidate for a spin-triplet superconductor. Experiments on UTe$_2$ under pressure have been vigorously conducted, and rich phase diagrams have been suggested. Multiple superconducting…

Strongly Correlated Electrons · Physics 2025-12-01 Makoto Shimizu , Youichi Yanase

A combined experimental and theoretical study of very-low-energy electron diffraction at the (0001) surface of 2H-NbSe2 is presented. Electron transmission spectra have been measured for energies up to 50 eV above the Fermi level with k||…

Strongly Correlated Electrons · Physics 2009-11-07 E. E. Krasovskii , W. Schattke , V. N. Strocov , R. Claessen

Using angle resolved photoemission spectroscopy (ARPES) we report the first band dispersions and distinct features of the bulk Fermi surface (FS) in the paramagnetic metallic phase of the prototypical metal-insulator transition material…

Strongly Correlated Electrons · Physics 2016-10-18 I. Lo Vecchio , J. D. Denlinger , O. Krupin , B. J. Kim , P. A. Metcalf , S. Lupi , J. W. Allen , A. Lanzara

The electronic structure of the heavy fermion compound CeB6 is probed by resonant inelastic soft X-ray scattering using photon energies across the Ce 3d and 4d absorption edges. The hybridization between the localized 4f orbitals and the…

Materials Science · Physics 2012-01-04 M. Magnuson , S. M. Butorin , J. -H. Guo , A. Agui , J. Nordgren , H. Ogasawara , A. Kotani , T. Takahashi , S. Kunii

First principles FPLAPWcalculations were performed in the framework of Density Functional Theory (DFT), to study the electronic structures and magnetic properties for the new full-Heusler compounds: Sc2CoZ (Z=Si, Ge, Sn). The investigated…

Materials Science · Physics 2014-03-25 A. Birsan

Optical spectra of highly excited quantum wires at low temperatures have been studied within the dynamically screening approximation. We found a strong Fermi-edge singularity (FES) in the photoluminescence spectra. The spectral shape and…

Mesoscale and Nanoscale Physics · Physics 2015-06-24 Huynh Thanh Duc , D. B. Tran Thoai

We have studied the electronic structure of EuFe2As2-xPx using high resolution angle-resolved photoemission spectroscopy. Upon substituting As with the isovalent P, which leads to a chemical pressure and to superconductivity, we observe a…

Epitaxial thin films of the substitutionally alloyed half-Heusler series CoTi$_{1-x}$Fe$_x$Sb were grown by molecular beam epitaxy on InAlAs/InP(001) substrates for concentrations 0.0$\leq$x$\leq$1.0. The influence of Fe on the structural,…

We have performed angle-resolved photoemission spectroscopy (ARPES) measurements and first-principles electronic structure calculations on the electron-doped high-Tc superconductors Ln1.85Ce0.15CuO4 (Ln = Nd, Sm, and Eu). The observed Fermi…

Superconductivity · Physics 2009-07-17 M. Ikeda , T. Yoshida , A. Fujimori , M. Kubota , K. Ono , Hena Das , T. Saha-Dasgupta , K. Unozawa , Y. Kaga , T. Sasagawa , H. Takagi

Layered indium selenides ($In_{2}Se_{3}$) have recently been discovered to host robust out-of-plane and in-plane ferroelectricity in the $\alpha$ and $\beta$' phases, respectively. In this work, we utilise angle-resolved photoelectron…

Li2Pd3B is known to be superconducting, while the isotypical Li2Pt3B compound is not. Electronic structures of Li2Pd3B and Li2Pt3B have been calculated in order to obtain an insight into this surprising difference, through an analysis of…

Superconductivity · Physics 2009-11-11 Sharat Chandra , S. Mathi Jaya , M. C. Valsakumar

The detailed information of the electronic structure is the key for understanding the nature of charge density wave (CDW) order and its relationship with superconducting order in microscopic level. In this paper, we present high resolution…

The electronic structure of the $f$-based superconductor $\mathrm{CeIr_3}$ was studied by photoelectron spectroscopy. The energy distribution of the $\mathrm{Ce}~4f$ states were revealed by the $\mathrm{Ce}~3d-4f$ resonant photoelectron…

Previous high-resolution angle-resolved photoemission (ARPES) studies of URu$_2$Si$_2$ have characterized the temperature-dependent behavior of narrow-band states close to the Fermi level ($E_\mathrm{F}$) at low photon energies near the…

Strongly Correlated Electrons · Physics 2022-03-01 J. D. Denlinger , J. -S. Kang , L. Dudy , J. W. Allen , Kyoo Kim , J. -H. Shim , K. Haule , J. L. Sarrao , N. P. Butch , M. B. Maple

Our valence band photoelectron spectroscopic studies show a temperature dependent spectral weight transfer near the Fermi level in the Fe-based superconductor FeSe1-xTex. Using theoretical band structure calculations we have shown that the…

Superconductivity · Physics 2015-06-22 P. Mishra , H. Lohani , R. A. Zargar , V. P. S. Awana , B. R. Sekhar

For the study of ferromagnetic materials which are compatible with group-IV semiconductor spintronics, we demonstrate control of the ferromagnetic properties of Heusler-alloys Fe_3-xMn_xSi epitaxially grown on Ge(111) by tuning the Mn…

Materials Science · Physics 2009-11-13 K. Hamaya , H. Itoh , O. Nakatsuka , K. Ueda , K. Yamamoto , M. Itakura , T. Taniyama , T. Ono , M. Miyao
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