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14 papers · 2 filters
Tailoring Metal Insulator Transitions Band Topology via Off-resonant Periodic Drive in an Interacting Triangular Lattice
Sayan Jana, Priyanka Mohan, Arijit Saha +1
A triangular lattice with onsite Coulomb interaction present only on one sub-lattice, is periodically driven by electromagnetic field with a frequency at half fil…
Anisotropic magnetic properties of trigonal ErAlGe single crystal
Moumita Nandi, A. Thamizhavel, S. K. Dhar
We report the anisotropic magnetic properties of the ternary compound ErAlGe. Single crystals of this compound were grown by high temperature solution growth technique,usin…
Kitaev quasiparticles in a proximate spin liquid: A many-body localization perspective
Aman Kumar, Vikram Tripathi
We study the stability of Kitaev quasiparticles in the presence of a perturbing Heisenberg interaction as a Fock space localization phenomenon. We identify parameter regimes where…
NMR, magnetization, and heat capacity studies of the uniform spin-1/2 chain compound Bi6V3O16
T. Chakrabarty, I. Heinmaa, V. Yu. Verchenko +2
We report the local (NMR) and bulk (magnetization and heat capacity) properties of the vanadium-based S=1/2 uniform spin chain compound Bi6V3O16(Bi4V2O10.66). In the low-temperatur…
Octupolar order in d-orbital Mott insulators
Arun Paramekanti, Dalini D. Maharaj, Bruce D. Gaulin
Motivated by experimental and theoretical interest in realizing multipolar orders in -orbital materials, we discuss the quantum magnetism of ions which can be realized…
Destruction of multiferroicity in Tb2BaNiO5 by Sr doping and its implication to magnetoelectric coupling
Sanjay K Upadhyay, E. V. Sampathkumaran
The Haldane spin-chain compound, Tb2BaNiO5, with two antiferromagnetic transitions, one at T1=63K, and the other at T2=25K, has been recently shown by us to be an exotic multiferro…
Reentrant spin-glass and transport behavior of Gd4PtAl, a compound with three sites for Gd
Ram Kumar, Jyoti Sharma, Kartik K Iyer +1
We report temperature (T) dependence (2-330 K) of DC and AC magnetization (M), isothermal remnant magnetization (M_IRM), heat capacity (C), electrical resistivity (rho), and magnet…
Magnetic order in NdPdSi investigated using neutron scattering and muon spin relaxation
M. Smidman, C. Ritter, D. T. Adroja +4
The rare-earth based ternary intermetallic compounds ( = rare-earth, = transition-metal, = Si, Ge, Ga, In) have attracted considerable interest due to a wide r…
Competing phases and critical behavior in three coupled spinless Luttinger liquids
S. Kundu, V. Tripathi
We study electronic phase competition in a system of three coupled spinless Luttinger liquids using abelian bosonization, together with a perturbative renormalization group (RG) an…
Possible glass-like random singlet magnetic state in 1T-TaS2
Sudip Pal, Kranti Kumar, Rohit Sharma +5
Two-dimensional layered transition-metal-dichalcogenide compound 1T-TaS2 shows the rare coexistence of charge density wave (CDW) and electron correlation driven Mott transition. In…
Overdamped antiferromagnetic strange metal state in SrIrRuO
Julian L. Schmehr, Thomas R. Mion, Zach Porter +8
The unconventional electronic ground state of SrIrRuO is explored via resonant x-ray scattering techniques and angle-resolved photoemission measurements. As the Ru content…
Existence of a critical canting angle of magnetic moments to induce multiferroicity in the Haldane spin-chain system, Tb2BaNiO5
Ram Kumar, Sudhindra Rayaprol, Sarita Rajput +5
We report an unusual canted magnetism due to 3d and 4f electrons, occupying two different crystallographic sites, with its consequence to electric dipole order. This is based on ne…
Neutron diffraction study of a metallic kagome lattice, Tb3Ru4Al12
Sudhindra Rayaprol, Andreas Hoser, Kartik K Iyer +2
We present the results of neutron diffraction studies on polycrystals of a metallic kagome lattice, Tb3Ru4Al12, reported recently to undergo reentrant magnetism, with the onset of…
Anisotropic re-entrant spin-glass features in a metallic kagome lattice, Tb3Ru4Al12
E. V. Sampathkumaran, Kartik K Iyer, Sanjay K Upadhyay +1
We report the results of ac and dc magnetic susceptibility and isothermal magnetization measurements (T= 2-300 K) on the single crystals of a metallic kagome lattice, Tb3Ru4Al12, r…