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Related papers: High-resolution Photoemission Study of Cd2Re2O7

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Cuprous oxide (Cu${}_2$O) has recently been proposed as a promising solid-state host for excitonic Rydberg states with large principal quantum numbers ($n$), whose exaggerated wavefunction sizes ($\propto n^2)$ facilitate gigantic…

Quantum Physics · Physics 2022-11-01 Jacob DeLange , Kinjol Barua , Val Zwiller , Stephan Steinhauer , Hadiseh Alaeian

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

We report on optical studies of the thin films of multiferroic hexagonal (P.G. 6mm) rare-earth orthoferrites RFeO3 (R=Ho, Er, Lu) grown epitaxially on a (111)-surface of ZrO2(Y2O3) substrate. The optical absorption study in the range of…

Materials Science · Physics 2012-07-18 V. V. Pavlov , A. R. Akbashev , A. M. Kalashnikova , V. A. Rusakov , A. R. Kaul , M. Bayer , R. V. Pisarev

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 antiferromagnetic order, a clear Fermi edge characteristic of a metal…

Strongly Correlated Electrons · Physics 2025-08-20 P. A. Bhobe , A. Chainani , M. Taguchi , R. Eguchi , M. Matsunami , T. Ohtsuki , K. Ishizaka , M. Okawa , M. Oura , Y. Senba , H. Ohashi , M. Isobe , Y. Ueda , S. Shin

Angle-resolved photoemission spectroscopy is performed on single crystals of the single-layer high-Tc superconductor Bi(2)Sr(2-x)La(x)CuO(6+d) at optimal doping (x=0.4) in order to study in great detail the Zhang-Rice (ZR) singlet band at…

Superconductivity · Physics 2009-10-31 R. Manzke , R. Mueller , C. Janowitz , M. Schneider , A. Krapf , H. Dwelk

A single crystal monolith of La0.9Sr0.1FeO3 and thin pulsed laser deposited film of La0.8Sr0.2Fe0.8Ni0.2O3 were subject to angle integrated valence band photoemission spectroscopy in ultra high vacuum and conductivity experiments in ambient…

Strongly Correlated Electrons · Physics 2011-06-07 A. Braun , B. S. Mun , Y. Sun , Z. Liu , R. Mäder , S. Erat , X. Zhang , S. S. Mao , E. Pomjakushina , K. Conder , L. J. Gauckler , T. Graule

We present a review on the developments in the photoemission spectrometer with a vacuum ultraviolet laser at Institute for Solid State Physics at the University of Tokyo. The advantages of high energy resolution, high cooling ability, and…

Superconductivity · Physics 2016-03-02 Takahiro Shimojima , Kozo Okazaki , Shik Shin

A sensitive polarization modulation technique uses photoelastic modulation and hetrodyne detection to simultaneously measure the Faraday rotation and induced ellipticity in light transmitted by semiconducting and metallic samples. The…

Superconductivity · Physics 2009-11-07 J. Cerne , D. C. Schmadel , L. B. Rigal , H. D. Drew

We report here on the electronic structure of electron-doped half-metallic ferromagnetic perovskites such Sr$_{2-x}$La$_x$FeMoO$_6$ ($x$=0-0.6) as obtained from high-resolved valence-band photoemission spectroscopy (PES). By comparing the…

Strongly Correlated Electrons · Physics 2009-11-10 J. Navarro , J. Fontcuberta , M. Izquierdo , J. Avila , M. C. Asensio

We report a detailed study performed on La2Zr2O7 (LZO) pyrochlore material grown by Metal-Organic Decomposition (MOD) method as buffer layers for YBa2Cu3O7-x (YBCO) coated conductors. High quality epitaxial LZO thin films have been obtained…

We investigated CeNi9In2 compound, which has been considered as a mixed valence (MV) system. Electrical resistivity vs. temperature variation was analysed in terms of the model proposed by Freimuth for systems with unstable 4f shell. At low…

Strongly Correlated Electrons · Physics 2015-04-10 R. Kurleto , P. Starowicz , J. Goraus , S. Baran , Yu. Tyvanchuk , Ya. M. Kalychak , A. Szytuła

We have developed x-ray diffraction measurements with high energy-resolution and accuracy to study water structure at three different temperatures (7, 25 and 66 C) under normal pressure. Using a spherically curved Ge crystal an energy…

Soft Condensed Matter · Physics 2017-09-13 Congcong Huang , K. T. Wikfeldt , D. Nordlund , U. Bergmann , T. McQueen , J. Sellberg , L. G. M. Pettersson , A. Nilsson

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

Accurate and precise measurements of spectroradiometric temperature are crucial for many high pressure experiments that use diamond anvil cells or shock waves. In experiments with sub-millisecond timescales, specialized detectors such as…

Instrumentation and Detectors · Physics 2023-10-26 Zachary M. Geballe , Francesca Miozzi , Chris F. Anto , Javier Rojas , Jing Yang , Michael J. Walter

The superconducting pyrochlore oxide Cd2Re2O7 shows a structural transition with inversion symmetry breaking (ISB) at Ts1 = 200 K. A recent theory [L. Fu, Phys. Rev. Lett. 115, 026401 (2015)] suggests that the origin is an electronic…

We report on experimental data of the three-dimensional bulk Fermi surfaces of the layered strongly correlated Ca1.5Sr0.5RuO4 system. The measurements have been performed by means of hn-depndent bulk-sensitive soft x-ray angle-resolved…

Strongly Correlated Electrons · Physics 2007-11-15 M. Uruma , A. Sekiyama , H. Fujiwara , M. Yano , H. Fujita , S. Imada , T. Muro , I. A. Nekrasov , Y. Maeno , S. Suga

We investigate the electronic structure of a complex conventional superconductor, ZrB12 employing high resolution photoemission spectroscopy and ab initio band structure calculations. The experimental valence band spectra could be described…

Superconductivity · Physics 2013-12-03 S. Thakur , D. Biswas , N. Sahadev , P. K. Biswas , G. Balakrishnan , K. Maiti

The recently discovered superconductor, UTe$_2$, has attracted immense scientific interest due to the experimental observations that suggest odd-parity superconductivity. It is believed that the material becomes a heavy-fermion metal at low…

Broadband infrared photodetectors have profound importance in diverse applications including security, gas sensing, bioimaging, spectroscopy for food quality, and recycling, just to name a few. Yet, these applications can currently be…

Applied Physics · Physics 2022-03-28 Biswajit Kundu , Onur Özdemir , Mariona Dalmases , Gaurav Kumar , Gerasimos Konstantatos

The temperature ($T$) dependent metal-insulator transition (MIT) in VO$_2$ is investigated using bulk sensitive hard x-ray ($\sim$ 8 keV) valence band, core level, and V 2$p-3d$ resonant photoemission spectroscopy (PES). The valence band…

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