Related papers: Electronic structure of $A$Co$_2$As$_2$ ($A=$ Ca, …

The weak electronic correlations and absence of heavy Fermion state in KNi$_2$Se$_2$

We have studied the low-lying electronic structure of a new ThCr$_2$Si$_2$-type superconductor KNi$_2$Se$_2$ with angle-resolved photoemission spectroscopy. Three bands intersect the Fermi level, forming complicated Fermi surface topology,…

Superconductivity · Physics 2015-06-23 Q. Fan , X. P. Shen , M. Y. Li , D. W. Shen , W. Li , X. M. Xie , Q. Q. Ge , Z. R. Ye , S. Y. Tan , X. H. Niu , B. P. Xie , D. L. Feng

Electronic Structure of $\mathrm{Sr}_{1-y}\mathrm{Ca}_{y}\mathrm{Fe_{2}}(\mathrm{As}_{1-x}\mathrm{P}_{x}\mathrm{)_{2}}$ ($x$ = 0.25, $y$ = 0.08) Revealed by Angle-Resolved Photoemission Spectroscopy

We have investigated the electronic structure of $\mathrm{Sr}_{1-y}\mathrm{Ca}_{y}\mathrm{Fe_{2}}(\mathrm{As}_{1-x}\mathrm{P}_{x}\mathrm{)_{2}}$ ($x$ = 0.25, $y$ = 0.08) by means of angle-resolved photoemission spectroscopy. From the…

Superconductivity · Physics 2020-02-05 Toru Adachi , Shinichiro Ideta , Zi How Tin , Hidetomo Usui , Kiyohisa Tanaka , Shigeki Miyasaka , Setsuko Tajima

Fermi surface of Ba{1-x}KxFe2As2 as probed by angle-resolved photoemission

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…

Superconductivity · Physics 2009-06-19 V. B. Zabolotnyy , D. V. Evtushinsky , A. A. Kordyuk , D. S. Inosov , A. Koitzsch , A. V. Boris , G. L. Sun , C. T. Lin , M. Knupfer , B. Buechner , A. Varykhalov , R. Follath , S. V. Borisenko

Electronic Structure Examination on the Topological Properties of CaMnSb$_{2}$ by Angle-Resolved Photoemission Spectroscopy

We have carried out detailed high resolution ARPES measurements and band structure calculations to study the electronic structure of CaMnSb$_{2}$. The observed Fermi surface mainly consists of one hole pocket around ${\Gamma}$ point and one…

Materials Science · Physics 2021-06-28 Hongtao Rong , Liqin Zhou , Junbao He , Chunyao Song , Jianwei Huang , Cheng Hu , Yu Xu , Yongqing Cai , Hao Chen , Cong Li , Qingyan Wang , Lin Zhao , Zhihai Zhu , Guodong Liu , Zuyan Xu , Genfu Chen , Hongming Weng , X. J. Zhou

Fermi Surface and Band Renormalization in (Sr,K)Fe$_2$As$_2$ Superconductor from Angle-Resolved Photoemission Spectroscopy

High resolution angle-resolved photoemission measurements have been carried out on (Sr,K)Fe$_2$As$_2$ superconductor (Tc=21 K). Three hole-like Fermi surface sheets are clearly resolved for the first time around the Gamma point. The overall…

Superconductivity · Physics 2008-11-20 Haiyun Liu , Wentao Zhang , Lin Zhao , Xiaowen Jia , Jianqiao Meng , Guodong Liu , Xiaoli Dong , G. F. Chen , J. L. Luo , N. L. Wang , Wei Lu , Guiling Wang , Yong Zhou , Yong Zhu , Xiaoyang Wang , Zhongxian Zhao , Zuyan Xu , Chuangtian Chen , X. J. Zhou

Band Structure and Fermi Surface of an Extremely Overdoped Iron-Based Superconductor KFe2As2

We have performed high-resolution angle-resolved photoemission spectroscopy on heavily overdoped KFe_2As_2 (transition temperature (Tc = 3 K). We observed several renormalized bands near the Fermi level with a renormalization factor of 2-4.…

Superconductivity · Physics 2015-05-13 T. Sato , K. Nakayama , Y. Sekiba , P. Richard , Y. -M. Xu , S. Souma , T. Takahashi , G. F. Chen , J. L. Luo , N. L. Wang , H. Ding

Band Structure and Fermi Surface Nesting in $LaSb_2$

We use high-resolution angle resolved photoemission spectroscopy (ARPES) and density functional theory (DFT) to investigate the electronic structure of the charge density wave (CDW) system LaSb$_2$. This compound is among an interesting…

Strongly Correlated Electrons · Physics 2024-07-18 Evan O'Leary , Lin-Lin Wang , Yevhen Kushnirenko , Ben Schrunk , Andrew Eaton , Paula Herrera-Siklody , Paul C. Canfield , Adam Kaminski

Electronic structure of BaNi$_2$P$_2$ observed by angle-resolved photoemission spectroscopy

We have performed an angle-resolved photoemission spectroscopy (ARPES) study of BaNi$_2$P$_2$ which shows a superconducting transition at $T_c$ $\sim$ 2.5 K. We observed hole and electron Fermi surfaces (FSs) around the Brillouin zone…

Superconductivity · Physics 2015-08-06 S. Ideta , T. Yoshida , M. Nakajima , W. Malaeb , H. Kito , H. Eisaki , A. Iyo , Y. Tomioka , T. Ito , K. Kihou , C. H. Lee , Y. Kotani , K. Ono , S. K. Mo , Z. Hussain , Z. -X. Shen , H. Harima , S. Uchida , A. Fujimori

Complete Fermi surface in BaFe$_2$As$_2$ observed via Shubnikov-de Haas oscillation measurements on detwinned single crystals

We show that the Fermi surface (FS) in the antiferromagnetic phase of BaFe$_2$As$_2$ is composed of one hole and two electron pockets, all of which are three dimensional and closed, in sharp contrast to the FS observed by angle-resolved…

Superconductivity · Physics 2011-10-19 Taichi Terashima , Nobuyuki Kurita , Megumi Tomita , Kunihiro Kihou , Chul-Ho Lee , Yasuhide Tomioka , Toshimitsu Ito , Akira Iyo , Hiroshi Eisaki , Tian Liang , Masamichi Nakajima , Shigeyuki Ishida , Shin-ichi Uchida , Hisatomo Harima , Shinya Uji

Heavily electron-doped electronic structure and isotropic superconducting gap in AxFe2Se2 (A=K,Cs)

The low energy band structure and Fermi surface of the newly discovered superconductor, AxFe2Se2 (A=K,Cs), have been studied by angle-resolved photoemission spectroscopy. Compared with iron pnictide superconductors, AxFe2Se2 (A=K,Cs) is the…

Superconductivity · Physics 2011-04-15 Y. Zhang , L. X. Yang , M. Xu , Z. R. Ye , F. Chen , C. He , J. Jiang , B. P. Xie , J. J. Ying , X. F. Wang , X. H. Chen , J. P. Hu , D. L. Feng

A re-examination of the electronic structure of Bi_2Sr_2CaCu_2O_{8+d} and Bi_2Sr_2Cu_1O_{6+d} - An electron-like Fermi Surface and the absence of flat bands at $E_F$

We present a re-examination of the electronic structure and Fermi Surface (FS) of Bi-Sr-Ca-Cu-O (BSCCO) as obtained from angle-resolved photoemission experiments. By applying a stricter set of FS crossing criteria as well as by varying the…

Strongly Correlated Electrons · Physics 2007-05-23 Y. D. Chuang , A. D. Gromko , D. S. Dessau , Y. Aiura , Y. Yamaguchi , K. Oka , A. J. Arko , J. Joyce , H. Eisaki , S. I. Uchida , K. Nakamura , Yoichi Ando

Bulk electronic structure of optimally doped Ba(Fe$_{1-x}$Co$_{x}$)$_2$As$_2$

We report high-resolution, bulk Compton scattering measurements unveiling the Fermi surface of an optimally-doped iron-arsenide superconductor, Ba(Fe$_{0.93}$Co$_{0.07}$)$_2$As$_2$. Our measurements are in agreement with first-principles…

Strongly Correlated Electrons · Physics 2010-02-24 C. Utfeld , J. Laverock , T. D. Haynes , S. B. Dugdale , J. A. Duffy , M. W. Butchers , J. W. Taylor , S. R. Giblin , J. G. Analytis , J. Chu , I. R. Fisher , M. Itou , Y. Sakurai

Drastic electronic structure reconstruction of Ca$_{1-x}$Pr$_x$Fe$_2$As$_2$ in the collapsed tetragonal phase

We report the electronic structure reconstruction of Ca$_{1-x}$Pr$_x$Fe$_2$As$_2$ ($x$ = 0.1 and 0.15) in the low temperature collapsed tetragonal (CT) phase observed by angle-resolved photoemission spectroscopy. Different from…

Superconductivity · Physics 2014-12-24 D. F. Xu , D. W. Shen , J. Jiang , Z. R. Ye , X. Liu , X. H. Niu , H. C. Xu , Y. J. Yan , T. Zhang , B. P. Xie , D. L. Feng

Common Fermi Surface Topology and Nodeless Superconducting Gap in K0.68Fe1.79Se2 and (Tl0.45K0.34)Fe1.84Se2 Superconductors Revealed from Angle-Resolved Photoemission Spectroscopy

We carried out high resolution angle-resolved photoemission measurements on the electronic structure and superconducting gap of K_0.68Fe_1.79Se_2 (T_c=32 K) and (Tl_0.45K_0.34)Fe_1.84Se_2 (T_c=28 K) superconductors. In addition to the…

Superconductivity · Physics 2015-05-27 Lin Zhao , Daixiang Mou , Shanyu Liu , Xiaowen Jia , Junfeng He , Yingying Peng , Li Yu , Xu Liu , Guodong Liu , Shaolong He , Xiaoli Dong , Jun Zhang , J. B. He , D. M. Wang , G. F. Chen , J. G. Guo , X. L. Chen , Xiaoyang Wang , Qinjun Peng , Zhimin Wang , Shenjin Zhang , Feng Yang , Zuyan Xu , Chuangtian Chen , X. J. Zhou

Probing the reconstructed Fermi surface of antiferromagnetic BaFe$_2$As$_2$ in one domain

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…

Superconductivity · Physics 2019-02-28 Matthew D. Watson , Pavel Dudin , Luke C. Rhodes , Daniil V. Evtushinsky , Hideaki Iwasawa , Saicharan Aswartham , Sabine Wurmehl , Bernd Büchner , Moritz Hoesch , Timur K. Kim

The electronic structure of CeCoIn5 from angle-resolved photoemission spectroscopy II: Hybridization effects

We have investigated the low-energy electronic structure of the heavy fermion superconductor CeCoIn5 by angle-resolved photoemission. We focus on the dispersion and the peak width of the prominent quasi-two-dimensional Fermi surface sheet…

Superconductivity · Physics 2009-11-13 A. Koitzsch , S. V. Borisenko , D. Inosov , J. Geck , V. B. Zabolotnyy , H. Shiozawa , M. Knupfer , J. Fink , B. Buechner , E. D. Bauer , J. L. Sarrao , R. Follath

Observation of intertwined Fermi surface topology, orbital parity symmetries and electronic interactions in iron arsenide superconductors

We present a polarization and topology resolved study of the low energy band structure in optimally doped superconducting Ba0.6K0.4Fe2As2 using angle resolved photoemission spectroscopy. Polarization-contrasted measurements allow us to…

Strongly Correlated Electrons · Physics 2009-12-31 L. A. Wray , D. Hsieh , Y. Xia , S. -Y. Xu , D. Qian , G. F. Chen , J. L. Luo , N. L. Wang , M. Z. Hasan

Three-dimensional electronic structure of superconducting iron pnictides observed by angle-resolved photoemission spectroscopy

We have performed an angle-resolved photoemission spectroscopy (ARPES) study of the undoped and electron-doped iron pnictides BaFe2\_{-x}CoxAs2 (Ba122) (x=0, 0.14) and studied the Fermi surfaces (FSs) and band dispersions near the Fermi…

Superconductivity · Physics 2009-12-01 Walid Malaeb , Teppei Yoshida , Atsushi Fujimori , Masato Kubota , Kanta Ono , Kunihiro Kihou , Parasharam M. Shirage , Hijiri Kito , Akira Iyo , Hiroshi Eisaki , Yasuyuki Nakajima , Tsuyoshi Tamegai , Ryotaro Arita

Fermi surfaces and quasi-particle band dispersions of the iron pnictides superconductor KFe2As2 observed by angle-resolved photoemission spectroscopy

We have performed an angle-resolved photoemission study of the iron pnictide superconductor KFe2As2 with Tc 4 K. Most of the observed Fermi surfaces show almost two-dimensional shapes, while one of the quasi-particle bands near the Fermi…

Strongly Correlated Electrons · Physics 2012-01-24 T. Yoshida , I. Nishi , A. Fujimori , M. Yi , R. G. Moore , D. -H. Lu , Z. -X. Shen , K. Kihou , P. M. Shirage , H. Kito , C. H. Lee , A. Iyo , H. Eisaki , H. Harima

Electronic structure of FeS

Here we report the electronic structure of FeS, a recently identified iron-based superconductor. Our high-resolution angle-resolved photoemission spectroscopy studies show two hole-like ($\alpha$ and $\beta$) and two electron-like ($\eta$…

Superconductivity · Physics 2017-06-06 J. Miao , X. H. Niu , D. F. Xu , Q. Yao , Q. Y. Chen , T. P. Ying , S. Y. Li , Y. F. Fang , J. C. Zhang , S. Ideta , K. Tanaka , B. P. Xie , D. L. Feng , Fei Chen