75 citations · 439 across the 23 of their papers we have counts for
15 papers · 1 filter
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…
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…
Pressure dependence of the magnetic ground state in CePtSi2
S. E. Dissanayake, F. Ye, W. Tian +7
CePtSi2 was reported to exhibit an antiferromagnetic order below T*=1.8 K at ambient pressure, a valence state change at ~1.2 GPa, and superconductivity in the range between 1.4 an…
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…
Phase diagram of the Shastry-Sutherland Compound SrCu2(BO3)2 under extreme combined conditions of field and pressure
Zhenzhong Shi, Sachith Dissanayake, Philippe Corboz +7
Motivated by the intriguing properties of the Shastry-Sutherland compound SrCu2(BO3)2 under pressure, with a still debated intermediate plaquette phase appearing at around 20 kbar…
Phase Diagram of YbZnGaO4 in Applied Magnetic Field
William Steinhardt, P. A. Maksimov, Sachith Dissanayake +11
Recently, Yb-based triangular lattice antiferromagnets have garnered significant interest as possible quantum spin liquid candidates. One example is YbMgGaO4, which showed many pro…
Formation of short-range magnetic order and avoided ferromagnetic quantum criticality in pressurized LaCrGe
Elena Gati, John M. Wilde, Rustem Khasanov +11
LaCrGe has attracted attention as a paradigm example of the avoidance of ferromagnetic (FM) quantum criticality in an itinerant magnet. By combining thermodynamic, transport, x…
Evidence for pressure induced unconventional quantum criticality in the coupled spin ladder antiferromagnet CHNCuBr
Tao Hong, Tao Ying, Qing Huang +15
Quantum phase transitions in quantum matter occur at zero temperature between distinct ground states by tuning a nonthermal control parameter. Often, they can be accurately describ…
Incommensurate two-dimensional checkerboard charge density wave in the low dimensional superconductor Ta4Pd3Te16
Zhenzhong Shi, S. J. Kuhn, F. Flicker +9
We report the observation of a two-dimensional (2D) checkerboard charge density wave (CDW) in the low-dimensional superconductor Ta4Pd3Te16. By determining its CDW properties acros…
Frustrated magnetic interactions in an S=3/2 bilayer honeycomb lattice compound Bi3Mn4O12(NO3)
M. Matsuda, S. E. Dissanayake, D. L. Abernathy +4
Inelastic neutron scattering study has been performed in an S=3/2 bilayer honeycomb lattice compound Bi3Mn4O12(NO3) at ambient and high magnetic fields. Relatively broad and monoto…
Constraining the Parameter Space of a Quantum Spin Liquid Candidate in Applied Field with Iterative Optimization
William M. Steinhardt, Zhenzhong Shi, Anjana Samarakoon +7
The quantum spin liquid (QSL) state is an exotic state of matter featuring a high degree of entanglement and lack of long-range magnetic order in the zero-temperature limit. The tr…
Direct observation of the Higgs amplitude mode in a two-dimensional quantum antiferromagnet near the quantum critical point
Tao Hong, Masashige Matsumoto, Yiming Qiu +12
Spontaneous symmetry-breaking quantum phase transitions play an essential role in condensed matter physics. The collective excitations in the broken-symmetry phase near the quantum…
Spin Jam: a quantum-fluctuation-induced glassy state of a frustrated magnet
Junjie Yang, Anjana Samarakoon, Sachith Dissanayake +8
Since the discovery of spin glasses in dilute magnetic systems, their study has been largely focused on understanding randomness and defects as the driving mechanism. The same para…
Magnetic field-induced instability of the cooperative paramagnetic state in ZnCo(OD)Cl
S. E. Dissanayake, C. Chan, S. Ji +9
Using elastic and inelastic neutron scattering techniques with and without application of an external magnetic field , the magnetic ground states of ZnCo(OD)Cl$_…