392 citations · 990 across the 22 of their papers we have counts for
22 papers
A universal route to chiral Ising superconductivity in monolayer TaS and NbSe
Lucia Gibelli, Simon Höcherl, Julian Siegl +4
We investigate Ising superconductivity in two archetypal intrinsic superconductors, monolayer 1H-TaS and 1H-NbSe, in a bottom-up approach. Using ab initio-based tight-bindi…
Doped Mott phase and charge correlations in monolayer 1T-NbSe
Xin Huang, Jose L. Lado, Jani Sainio +2
The doped Hubbard model is one of the paradigmatic platforms to engineer exotic quantum many-body states, including charge-ordered states, strange metals and unconventional superco…
Demonstrating Kondo behavior by temperature-dependent scanning tunneling spectroscopy
Elia Turco, Markus Aapro, Somesh C. Ganguli +9
The Kondo effect describes the scattering of conduction electrons by magnetic impurities, manifesting as an electronic resonance at the Fermi energy with a distinctive temperature…
Visualization of moiré magnons in monolayer ferromagnet
Somesh Chandra Ganguli, Markus Aapro, Shawulienu Kezilebieke +3
Two-dimensional magnetic materials provide an ideal platform to explore collective many-body excitations associated with spin fluctuations. In particular, it should be feasible to…
Evidence of nodal superconductivity in monolayer 1H-TaS with hidden order fluctuations
Viliam Vaňo, Somesh Chandra Ganguli, Mohammad Amini +6
Unconventional superconductors represent one of the fundamental directions in modern quantum materials research. In particular, nodal superconductors are known to appear naturally…
Artificial heavy fermions in a van der Waals heterostructure
Viliam Vaňo, Mohammad Amini, Somesh Chandra Ganguli +4
Heavy fermion systems represent one of the paradigmatic strongly correlated states of matter. They have been used as a platform for investigating exotic behavior ranging from quant…
Moiré-enabled topological superconductivity
Shawulienu Kezilebieke, Viliam Vaňo, Md N. Huda +4
The search for artificial topological superconductivity has been limited by the stringent conditions required for its emergence. As exemplified by the recent discoveries of various…
Electronic and magnetic characterization of epitaxial CrBr monolayers
Shawulienu Kezilebieke, Orlando J. Silveira, Md N. Huda +8
The ability to imprint a given material property to another through proximity effect in layered two-dimensional materials has opened the way to the creation of designer materials.…
Confinement-engineered superconductor to correlated-insulator transition in a van der Waals monolayer
Somesh Chandra Ganguli, Viliam Vaňo, Shawulienu Kezilebieke +2
Transition metal dichalcogenides (TMDC) are a rich family of two-dimensional materials displaying a multitude of different quantum ground states. In particular, d TMDCs are par…
Topological superconductivity in a van der Waals heterostructure
Shawulienu Kezilebieke, Md Nurul Huda, Viliam Vaňo +7
The designer approach has become a new paradigm in accessing novel quantum phases of matter. Moreover, the realization of exotic states such as topological insulators, superconduct…
Correlating Structural, Electronic, and Magnetic Properties of Epitaxial VSe2 Thin Films
Guannan Chen, Sean T. Howard, Aniceto B. Maghirang +9
The electronic and magnetic properties of transition metal dichalcogenides are known to be extremely sensitive to their structure. In this paper we study the effect of structure on…
Signatures of two-step impurity mediated vortex lattice melting in Bose-Einstein Condensates
T. Mithun, Somesh Chandra Ganguli, Pratap Raychaudhuri +1
We simulate a rotating 2D BEC to study the melting of a vortex lattice in presence of random impurities. Impurities are introduced either through a protocol in which vortex lattice…
Real Space Investigation of order-disorder transition of vortex lattice in Co-intercalated 2H-NbSe2
Somesh Chandra Ganguli
The work presented in my doctoral thesis is an experimental investigation of the nature of order to disorder transition of vortex lattice in a Type-II superconductor namely Co-inte…
Disorder-induced two-step melting of vortex matter in Co-intercalated NbSe single crystals
Somesh Chandra Ganguli, Harkirat Singh, Indranil Roy +4
Disorder induced melting, where the increase in positional entropy created by random pinning sites drives the order-disorder transition in a periodic solid, provides an alternate r…
Orientational coupling between the vortex lattice and the crystalline lattice in a weakly pinned Co0.0075NbSe2 single crystal
Somesh Chandra Ganguli, Harkirat Singh, Rini Ganguly +3
We report experimental evidence of strong orientational coupling between the crystal lattice and the vortex lattice in a weakly pinned Co-doped NbSe2 single crystal through direct…
Two step disordering of the vortex lattice across the peak effect in a weakly pinned Type II superconductor, Co0.0075NbSe2
Somesh Chandra Ganguli, Harkirat Singh, Garima Saraswat +5
The vortex lattice in a Type II superconductor provides a versatile model system to investigate the order-disorder transition in a periodic medium in the presence of random pinning…
Real space imaging of metastable Bragg glass states in a weakly pinned Type II superconductor
Garima Saraswat, Somesh Chandra Ganguli, Rini Ganguly +5
The breakdown of crystalline order in a disordered background connects to some of the most challenging problems in condensed matter physics. For a superconducting vortex lattice, t…
Emergence of nanoscale inhomogeneity in the superconducting state of a homogeneously disordered conventional superconductor, NbN
Anand Kamlapure, Tanmay Das, Somesh Chandra Ganguli +3
The notion of spontaneous formation of an inhomogeneous superconducting state is at the heart of most theories attempting to understand the superconducting state in the presence of…
A 350 mK, 9 T scanning tunneling microscope for the study of superconducting thin films and single crystals
Anand Kamlapure, Garima Saraswat, Somesh Chandra Ganguli +3
We report the construction and performance of a low temperature, high field scanning tunneling microscope (STM) operating down to 350mK and in magnetic fields up to 9T, with thin f…
Frequency dependent superfluid stiffness in the pseudogap regime in strongly disordered NbN thin films
Mintu Mondal, Anand Kamlapure, Somesh Chandra Ganguli +4
We measure the frequency dependence of the complex ac conductivity of NbN films with different levels of disorder in frequency range 0.4-20 GHz. Films with low disorder exhibit a n…
Universal scaling of the order-parameter distribution in strongly disordered superconductors
G. Lemarié, A. Kamlapure, D. Bucheli +6
We investigate theoretically and experimentally the statistical properties of the inhomogeneous order-parameter distribution (OPD) at the verge of the superconductor-insulator tran…
Observation of Andreev bound state and multiple energy gaps in the non-centrosymmetric superconductor BiPd
Mintu Mondal, Bhanu Joshi, Sanjeev Kumar +6
We report directional point contact Andreev reflection (PCAR) measurements on high-quality single crystals of the non-centrosymmetric superconductor, BiPd. The PCAR spectra measure…