59 citations · 217 across the 21 of their papers we have counts for
21 papers
Scaling Breakdown as a Signature of Spinon-Gauge Interaction in the Quantum Spin Liquid YbZnGaO
Shannon Gould, John Singleton, Rabindranath Bag +2
Scaling behavior in magnetization has been reported in a wide range of quantum spin liquid (QSL) candidates and is often interpreted as evidence for scale-free spin liquid physics.…
Emergent Hidden Multipolar State in the Triangular Lattice Magnet TmZn2GaO5
Matthew Ennis, Rabindranath Bag, Tessa Cookmeyer +5
TmZn2GaO5 is a newly synthesized triangular lattice magnet that exhibits a unique quantum phase characterized by strong Ising anisotropy, a pseudo-doublet crystal electric field gr…
Observation of a gapped phase in the one-dimensional Heisenberg antiferromagnetic chain Cu(Ampy)ClBr
Saikat Nandi, Monika Jawale, Sanjay Bachhar +9
Spin-1/2 Heisenberg antiferromagnetic frustrated spin chain systems display exotic ground states with unconventional excitations and distinct quantum phase transitions as the ratio…
Synthesis and characterization of the novel breathing pyrochlore compound Ba3Tm2Zn5O11
Lalit Yadav, Rabindranath Bag, Ramesh Dhakal +10
In this study, a novel material from the rare-earth based breathing pyrochlore family, Ba3Tm2Zn5O11, was successfully synthesized. Powder x-ray diffraction and high-resolution powd…
Observation of Unprecedented Fractional Magnetization Plateaus in a New Shastry-Sutherland Ising Compound
Lalit Yadav, Afonso Rufino, Rabindranath Bag +10
Geometrically frustrated magnetic systems, such as those based on the Shastry-Sutherland lattice (SSL), offer a rich playground for exploring unconventional magnetic states. The de…
Upconversion of terahertz phonons in spin-ladder compounds via nonlinear coupling
S. J. Sreerag, N. Malathi, Shahla Yasmin Mathengattil +3
We demonstrate dynamic control of the lattice by THz light by exploiting the coupling of phonon modes. The low-energy sliding phonon modes in the spin-ladder system, SrCu$_{…
Realization of two-sublattice exchange physics in the triangular lattice compound Ba3Er(BO3)3
Matthew Ennis, Rabindranath Bag, Chunxiao Liu +4
We have synthesized high-quality single crystal samples of the erbium-based triangular lattice compound Ba3Er(BO3)3. Thermal and magnetic measurements reveal large anisotropy and a…
Evidence of Dirac Quantum Spin Liquid in YbZn2GaO5
Rabindranath Bag, Sijie Xu, Nicholas E. Sherman +7
The emergence of a quantum spin liquid (QSL), a state of matter that can result when electron spins are highly correlated but do not become ordered, has been the subject of a consi…
Beyond Single Tetrahedron Physics of Breathing Pyrochlore Compound Ba3Yb2Zn5O11
Rabindranath Bag, Sachith E. Dissanayake, Han Yan +11
Recently a new class of quantum magnets, the so-called breathing pyrochlore spin systems, have attracted much attention due to their potential to host exotic emergent phenomena. He…
Crossover of the high-energy spin fluctuations from collective triplons to localized magnetic excitations in doped Sr14-xCaxCu24O41 cuprate ladders
Y. Tseng, J. Thomas, W. Zhang +13
We studied the magnetic excitations in the quasi-one-dimensional (q-1D) ladder subsystem of Sr_(14-x) Ca_x Cu_24 O_41(SCCO) using Cu L_3-edge resonant inelastic X-ray scattering (R…
Realization of Quantum Dipoles in Triangular Lattice Crystal Ba3Yb(BO3)3
Rabindranath Bag, Matthew Ennis, Chunxiao Liu +5
We investigate the thermodynamic properties of the ytterbium-based triangular lattice compound Ba3Yb(BO3)3. The results demonstrate the absence of any long-range ordering down to 5…
Towards understanding the magnetic properties of the breathing pyrochlore compound Ba3Yb2Zn5O11: A single crystal study
Sachith Dissanayake, Zhenzhong Shi, Jeffrey G. Rau +10
Ba3Yb2Zn5O11 is unique among breathing pyrochlore compounds for being in the nearly decoupled limit where inter-tetrahedron interactions are weak, hosting isolated clusters or "mol…
Magnetic phase diagram, magnetoelastic coupling and Grüneisen scaling in CoTiO
M. Hoffmann, K. Dey, J. Werner +7
High-quality single crystals of CoTiO are grown and used to elucidate in detail structural and magnetostructural effects by means of high-resolution capacitance dilatometry stu…
Insulator-to-metal transition in the pyrochlore iridates series (Eu_1-xBi_x)2Ir2O7 probed using Hard X-ray Photoemission Spectroscopy
Prachi Telang, Kshiti Mishra, Rabindranath Bag +3
Eu2Ir2O7, a candidate Weyl semimetal, shows an insulator-to-metal transition as a function of Bi substitution at the Eu site. In this work, we investigate the (Eu_1-xBi_x)2Ir2O7 se…
Giant orbital polarization of Ni in square planar environment
Prithwijit Mandal, Ranjan Kumar Patel, Dibyata Rout +7
Understanding the electronic behavior of Ni in a square planar environment of oxygen is the key to unravel the origin of the recently discovered superconductivity in the hol…
Magnetic phase diagram and magneto-elastic coupling of NiTiO3
Kaustav Dey, Sven Sauerland, Johannes Werner +5
We report high-resolution dilatometry on high-quality single crystals of NiTiO3 grown by means of the optical floating-zone technique. The anisotropic magnetic phase diagram is con…
Highly tunable magnetic spirals and electric polarization in GdDyMnO
Chandan De, Rabindranath Bag, Surjeet Singh +7
Recent progress in the field of multiferroics led to the discovery of many new materials in which ferroelectricity is induced by cycloidal spiral orders. The direction of the elect…
Excess speicific heat of the gapped sliding phonons in the incommensurate composite crystal SrCuO
Rabindranath Bag, Soumitra Hazra, R. N. Kini +1
We show that low temperature specific heat (C) of the incommensurate chain-ladder system SrCuO is enriched by the presence of a rather large excess contrib…
Effect of magnetic and non-magnetic impurities on the spin dimers in the spin 1/2 chains of quantum magnet SrCuO
Rabindranath Bag, Koushik Karmakar, Sudesh Dhar +3
We study the effect of impurities on the two types of spin-dimers in the hybrid chain/ladder spin 1/2 quantum magnet SrCuO. Four different impurities were used…
Impurities in weakly coupled quantum spin chains SrCuO and SrCuO
Koushik Karmakar, Rabindranath Bag, Markos Skoulatos +2
We study the effect of non-magnetic Zn (spin-) and magnetic Ni (spin-) impurities on the ground state and low-lying excitations of the quasi-one-dimensional spi…
Nanosize effect: Enhanced compensation temperature and existence of magneto-dielectric coupling in SmFeO3
Smita Chaturvedi, Priyank Shyam, Rabindranath Bag +6
In transition metal oxides, quantum confinement arising from a large surface to volume ratio often gives rise to novel physico-chemical properties at nanoscale. Their size dependen…