130 citations · 594 across the 26 of their papers we have counts for
26 papers
Observation of Flat Bands in Type-II Weyl Semimetal TaRhTe
Harry Rankin, Tyler J. Slade, Benjamin Schrunk +7
Flat bands have been theoretically predicted for decades but have only recently been realized in quantum materials such as magic-angle twisted bilayer graphene, kagome and Lieb lat…
Observation of unexpected band splitting and magnetically-induced band structure reconstruction in TbTiBi
Yevhen Kushnirenko, Lin-Lin Wang, Xiaoyi Su +5
The magnetic Kagome materials are a promising platform to study the interplay between magnetism, topology, and correlated electronic phenomena. Among these materials, the RTi3Bi4 f…
Band structure and charge ordering of Dirac semimetal EuAl at low temperatures
Andrew Eaton, Brinda Kuthanazhi, Paul C. Canfield +6
EuAl is proposed to host a topological Hall state. This material also undergoes four consecutive antiferromagnetic (AFM) transitions upon cooling below TN1 = 15.4 K in the pres…
Unexpected changes in the band structure within AFM1 state of CeBi
Yevhen Kushnirenko, Brinda Kuthanazhi, Benjamin Schrunk +7
We perform angle-resolved photoemission spectroscopy (ARPES) measurements in conjunction with density functional theory (DFT) calculations to investigate the evolution of the elect…
Long-range magnetic order induced surface state in GdBi and DyBi
Yevhen Kushnirenko, Lin-Lin Wang, Zhuoqi Li +6
The recent discovery of unconventional surface-state pairs, which give rise to Fermi arcs and spin textures, in antiferromagnetically ordered rare-earth monopnictides attracted the…
Band Structure and Fermi Surface Nesting in
Evan O'Leary, Lin-Lin Wang, Yevhen Kushnirenko +5
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…
Directional effects of antiferromagnetic ordering on the electronic structure in NdSb
Yevhen Kushnirenko, Brinda Kuthanazhi, Lin-Lin Wang +5
The recent discovery of unconventional surface state pairs, which give rise to Fermi arcs and spin textures, in antiferromagnetically ordered NdBi raised the interest in rare-earth…
Electronic signatures of successive itinerant, magnetic transitions in hexagonal La2Ni7
Kyungchan Lee, Na Hyun Jo, Lin-Lin Wang +5
We use high-resolution angle-resolved photoemission spectroscopy (ARPES) and density functional theory (DFT) calculations to study the electronic and magnetic properties of La2Ni7,…
Rare-earth monopnoctides -- family of antiferromagnets hosting magnetic Fermi arcs
Yevhen Kushnirenko, Benjamin Schrunk, Brinda Kuthanazhi +8
Since the discovery of topological insulators a lot of research effort has been devoted to magnetic topological materials, in which non-trivial spin properties can be controlled by…
Emergence of Fermi arcs and novel magnetic splitting in an antiferromagnet
Benjamin Schrunk, Yevhen Kushnirenko, Brinda Kuthanazhi +14
The Fermi arcs are signatures of exotic states in solids because they defy conventional concept of Fermi surfaces as closed contours in momentum space. Fermi arcs were first discov…
KCoAs: A New Portal for the Physics of High-Purity Metals
Abhishek Pandey, Y. Liu, Saroj L. Samal +4
High-quality single crystals of KCoAs with the body-centered tetragonal ThCrSi structure were grown using KAs self flux. Structural, magnetic, thermal, and electric…
Fermi surface tomography
Sergey Borisenko, Alexander Fedorov, Andrii Kuibarov +19
Fermi surfaces, three-dimensional (3D) abstract interfaces that define the occupied energies of electrons in a solid, are important for characterizing and predicting the thermal, e…
Experimental Evidence of Stable 2 Phase on the Surface of Layered 1-TaTe
Indrani Kar, Kapildeb Dolui, Luminita Harnagea +6
We report on the low-energy electronic structure of Tantalum ditelluride (1-TaTe), one of the charge density wave (CDW) materials from the group V transition metal dichalco…
Sixfold fermion near the Fermi level in cubic PtBi2
S. Thirupathaiah, Y. S. Kushnirenk, K. Koepernik +6
We show that the cubic compound PtBi2, is a topological semimetal hosting a sixfold band touching point in close proximity to the Fermi level. Using angle-resolved photoemission sp…
Electronic Structure Studies of FeSi: A Chiral Topological System
Susmita Changdar, S. Aswartham, Anumita Bose +7
Most recent observation of topological Fermi arcs on the surface of manyfold degenerate B20 systems, CoSi and RhSi, have attracted enormous research interests. Although an another…
Strongly correlated superconductor with polytypic 3D Dirac points
Sergey Borisenko, Volodymyr Bezguba, Alexander Fedorov +5
Topological superconductors should be able to provide essential ingredients for quantum computing, but are very challenging to realize. Spin-orbit interaction in iron-based superco…
Metal-chalcogen bond-length induced electronic phase transition from semiconductor to topological semimetal in ZrX (X = Se and Te)
I. Kar, Joydeep Chatterjee, Luminita Harnagea +6
Using angle resolved photoemission spectroscopy (ARPES) and density functional theory (DFT) calculations we studied the low-energy electronic structure of bulk ZrTe. ARPES stud…
Possible Experimental Realization of a Basic Z2 Topological Semimetal
Erik Haubold, Alexander Fedorov, Igor P. Rusinov +15
We report experimental and theoretical evidence that GaGeTe is a basic topological semimetal with three types of charge carriers: bulk-originated electrons and holes as well…
Energy scale of nematic ordering in the parent iron-based superconductor:BaFe2As2
Alexander Fedorov, Alexander Yaresko, Erik Haubold +6
Nematicity plays an important role in the physics of iron-based superconductors (IBS). Its microscopic origin and in particular its importance for the mechanism of high-temperature…
Massive Dirac fermions in layered BaZnBi
S. Thirupathaiah, D. Efremov, Y. Kushnirenko +7
Using angle-resolved photoemission spectroscopy (ARPES) and density functional theory (DFT) we study the electronic structure of layered BaZnBi. Our experimental results show n…
3D superconducting gap in FeSe from ARPES
Y. S. Kushnirenko, A. V. Fedorov, E. Haubold +7
We present a systematic angle-resolved photoemission spectroscopy study of the superconducting gap in FeSe. The gap function is determined in a full Brillouin zone including all Fe…
Spectroscopic evidence of topological phase transition in 3D Dirac semimetal Cd(AsP)
S. Thirupathaiah, I. Morozov, Y. Kushnirenko +9
We study the low-energy electronic structure of three-dimensional Dirac semimetal, Cd(AsP) [ = 0 and 0.34(3)], by employing the angle-resolved photoemission…
Observation of Dirac surface states in the hexagonal PtBi2, a possible origin of the linear magnetoresistance
S. Thirupathaiah, Y. Kushnirenko, E. Haubold +8
The nonmagnetic compounds showing extremely large magnetoresistance are attracting a great deal of research interests due to their potential applications in the field of spintronic…
Anomalous temperature evolution of the electronic structure of FeSe
Y. Kushnirenko, A. A. Kordyuk, A. Fedorov +4
We present ARPES data taken from the structurally simplest representative of iron-based superconductors, FeSe, in a wide temperature range. Apart from the variations related to the…