1.2k citations · 1.5k across the 16 of their papers we have counts for
16 papers
Spin-valve nature and giant coercivity of a ferrimagnetic spin semimetal MnIrGa
Akhilesh Kumar Patel, Y. Venkateswara, S. Shanmukharao Samatham +4
Spin semimetals are amongst the most recently discovered new class of spintronic materials, which exhibit a band gap in one spin channel and semimetallic feature in the other, thus…
Weak antilocalization effect and triply degenerate state in Cu-doped CaAuAs
Sudip Malick, Arup Ghosh, Chanchal K. Barman +4
The effect of 50\% Cu doping at the Au site in the topological Dirac semimetal CaAuAs is investigated through electronic band structure calculations, electrical resistivity, and ma…
Large nonsaturating magnetoresistance, weak anti-localization and non-trivial topological states in SrAlSi
Sudip Malick, A. B. Sarkar, Antu Laha +5
We explore the electronic and topological properties of single crystal SrAlSi using magnetotransport experiments in conjunction with first-principle calculations. We find t…
Modification of electronic structure and morphology of Ni2MnGa(100) by Cr adlayers
Abhishek Rai, Jayita Nayak
The growth of Cr adlayers on the Mn-Ga terminated surface of Ni2MnGa(100) has been studied in this work. We show formation of islands of epitaxial Cr layer up to 4 atomic layer hei…
Scanning tunneling microscopy study of Ni2MnGa(100) surface
Jayita Nayak, Abhishek Rai, D. L. Schlagel +2
Ni2MnGa(100) surface has been investigated in the premartensite and martensite phase by using scanning tunneling microscopy. The presence of twined morphology is observed in the pr…
Three interaction energy scales in single-layer high-T cuprate HgBaCuO
S. A. Sreedhar, Antonio Rossi, J. Nayak +10
The lamellar cuprate superconductors exhibit the highest ambient-pressure superconducting transition temperatures (T) and, after more than three decades of extraordinary resear…
Low-energy type-II Dirac fermions and spin-polarized topological surface states in transition-metal dichalcogenide NiTe
Barun Ghosh, Debashis Mondal, Chia-Nung Kuo +6
Using spin- and angle- resolved photoemission spectroscopy (spin-ARPES) together with calculations, we demonstrate the existence of a type-II Dirac semimetal stat…
Evidence of hot and cold spots on the Fermi surface of LiFeAs
J. Fink, J. Nayak, E. D. L. Rienks +10
Angle-resolved photoemission spectroscopy (ARPES) is used to study the energy and momentum dependence of the inelastic scattering rates and the mass renormalization of charge carri…
Manifestation of the Berry curvature in Co2TiSn Heusler films
Benedikt Ernst, Roshnee Sahoo, Yan Sun +7
Various Co2 based Heusler compounds are predicted to be Weyl materials. These systems with broken symmetry possess a large Berry curvature, and introduce exotic transport propertie…
Electronic properties of topological insulator candidate CaAgAs
Jayita Nayak, Nitesh Kumar, Shu-Chun Wu +6
The topological phases of matter provide the opportunity to observe many exotic properties, like the existence of two dimensional topological surface states in the form of Dirac co…
Observation of a remarkable reduction of correlation effects in BaCr2As2 by ARPES
Jayita Nayak, Kai Filsinger, Gerhard H. Fecher +6
The superconducting phase in iron based high Tc superconductors (FeSC) as in other unconventional superconductors such as the cuprates neighbours a magnetically ordered one in the…
Experimental evidence for the importance of Hund's exchange interaction for the incoherence of the charge carriers in iron-based superconductors
J. Fink, E. D. L. Rienks, S. Thirupathaiah +10
Angle-resolved photoemission spectroscopy (ARPES) is used to study the scattering rates of charge carriers from the hole pockets near Gamma in the iron-based high-Tc hole doped sup…
Electronic structure and ultrafast dynamics of FeAs-based superconductors by angle- and time-resolved photoemission spectroscopy
I. Avigo, S. Thirupathaiah, E. D. L. Rienks +17
In this article we review our angle- and time-resolved photoemission studies (ARPES and trARPES) on various ferropnictides.
Multiple Dirac cones at the surface of the topological metal LaBi
Jayita Nayak, Shu-Chun Wu, Nitesh Kumar +8
The rare-earth monopnictide LaBi exhibits exotic magneto-transport properties including an extremely large and anisotropic magnetoresistance. Experimental evidence for topological…
Room temperature tetragonal noncollinear antiferromagnet PtMnGa
S. Singh, S. W. D'Souza, E. Suard +7
Here we present the tetragonal stoichiometric Heusler compound PtMnGa with the noncollinear AFM order stable up to 350 K. It is resolved by the neutron diffraction as a helical…
Inverse photoemission spectroscopic studies on phase separated LaSrMnO
Navneet Singh, M. Maniraj, J. Nayak +2
We have studied the temperature evolution of the inverse photoemission spectra of phase separated LaSrMnO. To identify the features in the room temperature ex…