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Related papers: Fermi-surface of underdoped LaFeAsO1-xFx as determ…

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The three-dimensional Fermi surface morphology of superconducting BaFe_2(As_0.37}P_0.63)_2 with T_c=9K, is determined using the de Haas-van Alphen effect (dHvA). The inner electron pocket has a similar area and k_z interplane warping to the…

Superconductivity · Physics 2010-11-16 J. G. Analytis , J. -H. Chu , R. D. McDonald , S. C. Riggs , I. R. Fisher

We report the first observation of the de Haas-van Alphen (dHvA) effect in the novel spin-triplet superconductor UTe2 using high quality single crystals with the high residual resistivity ratio (RRR) over 200. The dHvA frequencies, named…

We report measurements of the de Haas-van Alphen effect for single crystals of MgB$_2$, in magnetic fields up to 32 Tesla. In contrast to our earlier work, dHvA orbits from all four sheets of the Fermi surface were detected. Our results are…

In order to understand the origin of superconductivity, it is crucial to ascertain the nature and origin of the primary carriers available to participate in pairing. Recent quantum oscillation experiments on high Tc cuprate superconductors…

We report the results of de-Haas-van-Alphen (dHvA) measurements in Cd doped CeCoIn$_5$ and LaCoIn$_5$. Cd doping is known to induce an antiferromagnetic order in the heavy fermion superconductor CeCoIn$_5$, whose effect can be reversed with…

Strongly Correlated Electrons · Physics 2015-05-18 C. Capan , Y-J. Jo , L. Balicas , R. G. Goodrich , J. F. DiTusa , I. Vekhter , T. P. Murphy , A. D. Bianchi , L. D. Pham , J. Y. Cho , J. Y. Chan , D. P. Young , Z. Fisk

We report temperature-dependent Hall effect and low-temperature de Haas-van Alphen (dHvA) effect measurements of the antiferromagnetic heavy-fermion compound U$_2$RhIn$_8$. Temperature dependence of the Hall resistivity suggests a…

Strongly Correlated Electrons · Physics 2025-02-04 D. Aoki , Y. Homma , H. Harima , I. Sheikin

Understanding the superconducting properties of MgB_2 is based strongly on knowledge of its electronic structure. In this paper we review experimental measurements of the Fermi surface parameters of pure and Al-doped MgB_2 using the de…

Superconductivity · Physics 2009-11-11 A. Carrington , E. A. Yelland , J. D. Fletcher , J. R. Cooper

In layered single band systems, the interlayer conductivity depends on the orientation of the in-plane magnetic field and takes maximum values when the magnetic field is perpendicular to flat regions of the Fermi surface. Extending this…

Superconductivity · Physics 2009-10-26 Takao Morinari , Hiroki Nakamura , Masahiko Machida , Takami Tohyama

We report a de Haas-van Alphen (dHvA) oscillation study of the 111 iron pnictide superconductors LiFeAs with T_c ~18K and LiFeP with T_c~5K. We find that for both compounds the Fermi surface topology is in good agreement with density…

We have investigated the de Haas-van Alphen effect in the Pr-based heavy fermion superconductor PrOs$_4$Sb$_{12}$.The topology of Fermi surface is close to the reference compound LaOs$_4$Sb$_{12}$ and well explained by the band structure…

Strongly Correlated Electrons · Physics 2009-11-07 H. Sugawara , S. Osaki , S. R. Saha , Y. Aoki , H. Sato , Y. Inada , H. Shishido , R. Settai , Y. Onuki , H. Harima , K. Oikawa

The de Haas - van Alphen (dHvA) effect in the cluster superconductor ZrB12 was studied by magnetic torque measurements in magnetic fields up to 28 T at temperatures down to 0.35 K. The dHvA oscillations due to orbits from the Neck sections…

Superconductivity · Physics 2007-10-26 V. A. Gasparov , I. Sheikin , F. Levy , J. Teyssier , G. Santi

We report density functional theory calculations for the parent compound LaOFeAs of the newly discovered 26K Fe-based superconductor LaO$_{1-x}$F$_x$FeAs. We find that the ground state is an ordered antiferromagnet, with staggered moment…

Superconductivity · Physics 2008-06-26 Chao Cao , P. J. Hirschfeld , Hai-Ping Cheng

The shape of the Fermi surface, and the cyclotron effective mass of the kagome magnet GdV6Sn6 charge carriers are investigated using de Haas van Alphen (dHvA) oscillations measurements and electronic band structure calculations. The…

We report on the results of a de Haas-van Alphen (dHvA) measurement performed on the recently discovered antiferromagnet URhIn$_5$ ($T_N$ = 98 K), a 5\textit{f}-analogue of the well studied heavy fermion antiferromagnet CeRhIn$_5$. The…

Strongly Correlated Electrons · Physics 2017-09-27 Jing Fei Yu , Attila Bartha , Jeroen Custers , S. R. Julian

We report on the study of the Fermi surface of the electron-doped cuprate superconductor Nd$_{2-x}$Ce$_x$CuO$_{4}$ by measuring the interlayer magnetoresistance as a function of the strength and orientation of the applied magnetic field. We…

The iron-based LaFeAsO$_{1-x}$F$_x$ recently discovered by Hosono's group is a fresh theoretical challenge as a new class of high-temperature superconductors. Here we describe the electronic structure of the material and the mechanism of…

Superconductivity · Physics 2009-11-13 Hideo Aoki

We report measurements of the de Haas - van Alphen effect on a series of compounds, LaMIn$_{5}$ (M = Co, Rh, Ir). The results show that each of the Co and Ir Fermi surfaces (FSs) exhibit some portions that are two dimensional and some…

Strongly Correlated Electrons · Physics 2009-11-13 Donavan Hall , Luis Balicas , Z. Fisk , R. G. Goodrich , U. Alver , J. L. Sarrao

We report detailed measurements of the de Haas-van Alphen (dHvA) effect in BaFe_2P_2 which is the end member of the superconducting series, BaFe_2(As_{1-x}P_x)_2. Using high purity samples we are able to observe dHvA oscillations from all…

Superconductivity · Physics 2011-09-12 B. J. Arnold , S. Kasahara , A. I. Coldea , T. Terashima , Y. Matsuda , T. Shibauchi , A. Carrington

The evolution of the Fermi surface of CeRh$_{1-x}$Co$_x$In$_5$ was studied as a function of Co concentration $x$ via measurements of the de Haas-van Alphen effect. By measuring the angular dependence of quantum oscillation frequencies, we…

Strongly Correlated Electrons · Physics 2008-07-30 Swee K. Goh , Johnpierre Paglione , Mike Sutherland , E. C. T. O'Farrell , C. Bergemann , T. A. Sayles , M. B. Maple

We theoretically study the de Haas-van Alphen (dHvA) oscillations in the system with changing the topology of the Fermi surface (the Lifshitz transition) by electron dopings. We employ the two-dimensional tight binding model for…

Mesoscale and Nanoscale Physics · Physics 2022-03-01 Keita Kishigi , Yasumasa Hasegawa
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