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Related papers: Coherent heavy quasiparticles in CePt5 surface all…

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We studied interactions between the coherent excitations on disconnected arcs along a bare Fermi surface (the so-called Fermi arcs (FAs)) seen by angle-resolved photo emission spectroscopy (ARPES) in several underdoped (UD) cuprates and…

Superconductivity · Physics 2015-06-22 Lev P. Gor'kov

We have conducted temperature dependent Angle Resolved Photoemission Spectroscopy (ARPES) study of the electronic structures of PbTe, PbSe and PbS. Our ARPES data provide direct evidence for the \emph{light} hole upper valence bands (UVBs)…

Strongly Correlated Electrons · Physics 2018-05-10 J. Zhao , C. D. Malliakas , K. Wijayaratne , V. Karlapati , N. Appathurai , D. Y. Chung , S. Rosenkranz , M. G. Kanatzidis , U. Chatterjee

We have carried out high-resolution angle-resolved photoemission measurements on the Cebased heavy fermion compound CePt2In7 that exhibits stronger two-dimensional character than the prototypical heavy fermion system CeCoIn5. Multiple Fermi…

We present a detailed electronic structure study of the non-centrosymmetric superconductor BiPd based on our angle resolved photoemission spectroscopy (ARPES) measurements and Density Functional Theory (DFT) based calculations. We observe a…

Superconductivity · Physics 2023-10-31 H. Lohani , P. Mishra , Anurag Gupta , V. P. S. Awana , B. R. Sekhar

Here we apply high resolution angle-resolved photoemission spectroscopy (ARPES) using a wide excitation energy range to probe the electronic structure and the Fermi surface topology of the Ba1-xKxFe2As2 (Tc = 32 K) superconductor. We find…

Point-contact spectroscopy was performed on single crystals of the heavy-fermion superconductor CeCoIn_5 between 150 mK and 2.5 K. A pulsed measurement technique ensured minimal Joule heating over a wide voltage range. The spectra show…

Superconductivity · Physics 2007-05-23 P. M. C. Rourke , M. A. Tanatar , C. S. Turel , J. Berdeklis , C. Petrovic , J. Y. T. Wei

We have performed high-resolution angle-resolved photoemission spectroscopy (ARPES) on noncentrosymmetric Weyl semimetal candidate NbP, and determined the electronic states of both Nb- and P-terminated surfaces corresponding to the…

Mesoscale and Nanoscale Physics · Physics 2016-04-27 S. Souma , Zhiwei Wang , H. Kotaka , T. Sato , K. Nakayama , Y. Tanaka , H. Kimizuka , T. Takahashi , K. Yamauchi , T. Oguchi , Kouji Segawa , Yoichi Ando

We present time-domain THz spectroscopy of thin films of the heavy-fermion superconductor CeCoIn$_5$. Below the $\approx$ 40 K Kondo coherence temperature, a narrow Drude-like peak forms, as the result of the $f$ orbital - conduction…

Strongly Correlated Electrons · Physics 2025-04-09 L. Y. Shi , Zhenisbek Tagay , Jiahao Liang , Khoan Duong , Yi Wu , F. Ronning , Darrell G. Schlom , K. M. Shen , N. P. Armitage

A notable role in understanding of microscopic electronic properties of high temperature superconductors (HTSC) belongs to angle resolved photoemission spectroscopy (ARPES). This technique supplies a direct window into reciprocal space of…

Superconductivity · Physics 2007-05-23 A. A. Kordyuk , S. V. Borisenko

We reproduce the electronic properties of FeSe in the high-temperature phase within an ab initio framework that includes screened Fock exchange and local dynamical correlations. We robustly capture the experimental band structure, as long…

Strongly Correlated Electrons · Physics 2021-07-21 Tommaso Gorni , Pablo Villar Arribi , Michele Casula , Luca de' Medici

The layered 2D-material MoTe$_2$ in the T$_d$ crystal phase is a semimetal which has theoretically been predicted to possess topologically non-trivial bands corresponding to Weyl fermions. Clear experimental evidence by angle-resolved…

We study the electronic structure of bulk 1T-TaSe$_2$ in the charge density wave phase at low temperature. Our spatially and angle resolved photoemission (ARPES) data show insulating areas coexisting with metallic regions characterized by a…

Recent angle-resolved photoemission (ARPES) studies of the high Tc superconductors are reviewed. Amongst the topics discussed are: the spectral function interpretation of ARPES data and sum rules; studies of the momentum distribution and…

Superconductivity · Physics 2008-02-03 Mohit Randeria , Juan-Carlos Campuzano

Using angle-resolved photoemission spectroscopy (ARPES) and density functional theory (DFT) calculations, we systematically studied the electronic band structure of Mn$_3$Ge in the vicinity of the Fermi level. We observe several bands…

Data from angle resolved photo-emission spectroscopy (ARPES) often serves as a smoking-gun evidence for the existence of topological materials. It provides the energy dispersion curves of the topological boundary modes which characterize…

Mesoscale and Nanoscale Physics · Physics 2015-12-08 Zohar Ringel

Temperature evolution of the 2H-TaSe2 Fermi surface (FS) is studied by high-resolution angle-resolved photoemission spectroscopy (ARPES). High-accuracy determination of the FS geometry was possible after measuring electron momenta and…

Strongly Correlated Electrons · Physics 2009-03-20 D. S. Inosov , D. V. Evtushinsky , V. B. Zabolotnyy , A. A. Kordyuk , B. Buechner , R. Follath , H. Berger , S. V. Borisenko

This study investigates the 5$f$-electron-conduction electron hybridization process in the heavy fermion superconductor UPd$_2$Al$_3$ using a combination of angle-resolved photoemission spectroscopy (ARPES) and time-resolved photoemission…

Slightly underdoped high-Tc system La(1.86)Sr(0.14)CuO(4) (LSCO) is studied by means of high energy high resolution angular resolved photoemission spectroscopy (ARPES) and combined computational scheme LDA+DMFT+Sk. Corresponding one band…

Strongly Correlated Electrons · Physics 2010-09-28 I. A. Nekrasov , E. E. Kokorina , E. Z. Kuchinskii , M. V. Sadovskii , S. Kasai , A. Sekiyama , S. Suga

We use angle resolved photoemission spectroscopy (ARPES) to study the band structure of BaFe2As2 and CaFe2As2, two of the parent compounds of the iron arsenic high temperature superconductors. We find clear evidence for band back folding…

We use angle-resolved photoemission spectroscopy to study heavy fermion superconductor Ce2RhIn8. The Fermi surface is rather complicated and consists of several hole and electron pock- ets. We do not observe kz dispersion of Fermi sheets,…

Strongly Correlated Electrons · Physics 2017-03-21 Rui Jiang , Daixiang Mou , Chang Liu , Xin Zhao , Yongxin Yao , Hyejin Ryu , C. Petrovic , Kai-Ming Ho , Adam Kaminski