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Related papers: Bulk-like d band of SrVO3 under a self-protective …

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Electronic structure of pulsed laser deposited epitaxial LaVO3 (LVO) thin film grown on LaAlO3 (001) (LAO) substrate, has been studied at room temperature and at 130 K, which is below the structural (141 K) and magnetic transition…

Strongly Correlated Electrons · Physics 2020-12-30 Anupam Jana , Rajamani Raghunathan , Ritu Rawat , R. J. Choudhary , D. M. Phase

The kagome metal CsV$_3$Sb$_5$ is an ideal platform to study the interplay between topology and electron correlation. To understand the fermiology of CsV$_3$Sb$_5$, intensive quantum oscillation (QO) studies at ambient pressure have been…

Single crystal antiferromagnetic USb2 was studied at 15K by angle-resolved photoemission with an overall energy resolution of 24 meV. The measurements unambiguously show the dispersion of extremely narrow bands situated near the Fermi…

We have performed an angle-resolved photoemission study on untwinned PrBa$_2$Cu$_3$O$_7$, which has low resistivity but does not show superconductivity. We have observed a dispersive feature with a band maximum around ($\pi$/2,$\pi$/2),…

Strongly Correlated Electrons · Physics 2009-10-31 T. Mizokawa , C. Kim , Z. -X. Shen , A. Ino , A. Fujimori , M. Goto , H. Eisaki , S. Uchida , M. Tagami , K. Yoshida , A. I. Rykov , Y. Siohara , K. Tomimoto , S. Tajima

Novel two-dimensional electron systems at the interfaces and surfaces of transition-metal oxides recently have attracted much attention as they display tunable, intriguing properties that can be exploited in future electronic devices. Here…

The optical properties of LaNiO$_3$ thin films are investigated over a wide energy and temperature range. Thin films of varying thickness were epitaxially grown by pulsed laser deposition on LaAlO$_3$ and SrTiO$_3$ substrates. The optical…

Strongly Correlated Electrons · Physics 2011-09-02 M. K. Stewart , Jian Liu , R. K. Smith , B. C. Chapler , C. - H. Yee , K. Haule , J. Chakhalian , D. N. Basov

There has been a long-standing debate about the mechanism of the unusual superconductivity in alkali-intercalated fulleride superconductors. In this work, using high-resolution angle-resolved photoemission spectroscopy, we systematically…

Resonant inverse photoemission spectra of Ni metal have been obtained across the Ni 3$p$ absorption edge. The intensity of Ni 3$d$ band just above Fermi edge shows asymmetric Fano-like resonance. Satellite structures are found at about 2.5…

Strongly Correlated Electrons · Physics 2009-11-10 Y. Tezuka , K. Kanai , H. Ishii , S. Shin , S. Nozawa , A. Tanaka , T. Jo

By combining bulk sensitive soft-X-ray angular-resolved photoemission spectroscopy and accurate first-principles calculations we explored the bulk electronic properties of WTe$_2$, a candidate type-II Weyl semimetal featuring a large…

Transport and torque magnetometry measurements are performed at high magnetic fields and low temperatures in a series of p-type (Ca-doped) Bi$_{2}$Se$_{3}$ crystals. The angular dependence of the Shubnikov-de Haas and de Haas-van Alphen…

Mesoscale and Nanoscale Physics · Physics 2016-05-25 B. A. Piot , W. Desrat , D. K. Maude , M. Orlita , M. Potemski , G. Martinez , Y. S. Hor

The recent discovery of a topological phase transition in IV-VI narrow-gap semiconductors has revitalized the decades-old interest in the bulk band inversion occurring in these materials. Here we systematically study the (001) surface…

We present an angle-resolved photoelectron spectroscopy study of YBa2Cu3O7-delta films in situ grown by pulsed laser deposition. We have successfully produced underdoped surfaces with ordered oxygen vacancies within the CuO chains resulting…

We use angle-resolved photoemission spectroscopy to extract the band dispersion and the Fermi surface of BaCu$_2$As$_2$ and $\alpha$-BaCu$_2$Sb$_2$. While the Cu $3d$ bands in both materials are located around 3.5 eV below the Fermi level,…

Superconductivity · Physics 2015-06-10 S. F. Wu , P. Richard , A. van Roekeghem , S. M. Nie , H. Miao , N. Xu , T. Qian , B. Saparov , Z. Fang , S. Biermann , Athena S. Sefat , H. Ding

We investigated the low-energy electronic structure of Sr2RuO4 by angle-resolved photoemission spectroscopy (ARPES) focusing, in particular, on the controversial issues of the Fermi surface (FS) topology and of the extended van Hove…

Strongly Correlated Electrons · Physics 2007-05-23 A. Damascelli , K. M. Shen , D. H. Lu , N. P. Armitage , F. Ronning , D. L. Feng , C. Kim , Z. -X. Shen , T. Kimura , Y. Tokura , Z. Q. Mao , Y. Maeno

We develop a theory for the compressibility of the surface states of 3D topological insulators and propose that surface probes of the compressibility via scanning single electron transistor microscopy will be a straightforward way to access…

Mesoscale and Nanoscale Physics · Physics 2013-02-06 D. S. L. Abergel , S. Das Sarma

We have performed an angle-resolved photoemission spectroscopy (ARPES) study of the iron-based superconductor PrFeAsO_{0.7} and examined the Fermi surfaces and band dispersions near the Fermi level. Heavily hole-doped electronic states have…

Perovskite alkaline earth stannates, such as $BaSnO_3$ and $SrSnO_3$, showing light transparency and high electrical conductivity (when doped), have become promising candidates for novel optoelectrical devices. Such devices are mostly based…

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…

Recent photoemission experiments have shown strong surface modifications in the spectra from vanadium oxides as (V,Cr)_2O_3 or (Sr,Ca)VO_3. The effective mass is enhanced at the surface and the coherent part of the surface spectrum is…

Strongly Correlated Electrons · Physics 2009-11-10 S. Schwieger , M. Potthoff , W. Nolting

We report the first combined study of the low-energy electronic band structure of epitaxial Sr$_3$Ru$_2$O$_7$ films using angle-resolved photoemission spectroscopy and density functional theory. The complete Fermi-surface topography of the…

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