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Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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24 papers · 2 filters
Robust spin correlations at high magnetic fields in the honeycomb iridates
K. A. Modic, B. J. Ramshaw, Nicholas P. Breznay +3
The complexity of the antiferromagnetic orders observed in the honeycomb iridates is a double-edged sword in the search for a quantum spin-liquid ground state: both attesting that…
Ba8CoNb6O24: a spin-1/2 triangular-lattice Heisenberg antiferromagnet in the 2D limit
R. Rawl, L. Ge, H. Agrawal +11
The perovskite Ba8CoNb6O24 comprises equilateral effective spin-1/2 Co2+ triangular layers separated by six non-magnetic layers. Susceptibility, specific heat and neutron scatterin…
Thermodynamic constraints on the amplitude of quantum oscillations
Arkady Shekhter, K. A. Modic, R. D. McDonald +1
Magneto-quantum oscillation experiments in high temperature superconductors show a strong thermally-induced suppression of the oscillation amplitude approaching critical dopings---…
Structural and magnetic properties of two branches of the Tripod Kagome Lattice family ARESbO (A = Mg, Zn; RE = Pr, Nd, Gd, Tb, Dy, Ho, Er, Yb)
Z. L. Dun, J. Trinh, M. Lee +7
We present a systematic study of the structural and magnetic properties of two branches of the rare earth Tripod Kagome Lattice (TKL) family ARESbO (A = Mg…
NMR Investigation of antiferromagnetism and coherence in URuSiP
K. R. Shirer, M. Lawson, T. Kissikov +5
We report P and Si NMR in single crystals of URuSiP for and . The spectra in the sample are consistent with a homogenous com…
Collective Dynamics and Strong Pinning near the Onset of Charge Order in LaNdSrCuO
P. G. Baity, T. Sasagawa, Dragana Popović
The dynamics of charge-ordered states is one of the key issues in underdoped cuprate high-temperature superconductors, but static short-range charge-order (CO) domains have been de…
Instabilities of Weyl-loop semi-metals
Shouvik Sur, Rahul Nandkishore
We study Weyl-loop semi-metals with short range interactions, focusing on the possible interaction driven instabilities. We introduce an expansion regularization scheme by mean…
Thermodynamic Measurement of Angular Anisotropy at the Hidden Order Transition of URuSi
Jennifer Trinh, Ekkes Bruck, Theo Siegrist +4
The heavy fermion compound URuSi continues to attract great interest due to the unidentified hidden order it develops below 17.5K. The unique Ising character of the spin fl…
Candidate Elastic Quantum Critical Point in LaCuAu
L. Poudel, A. F. May, M. R. Koehler +10
The structural properties of LaCuAu have been studied using neutron diffraction, x-ray diffraction, and heat capacity measurements. The continuous orthorhombic-monoclin…
New Evidence for a Low-Temperature Magnetic Ground State in Double-Perovskite Iridates with Ir5+(5d4) Ions
J. Terizc, H. Zheng, Feng Ye +4
We report an unusual magnetic ground state in single-crystal, double-perovskite Ba2YIrO6 and Sr doped Ba2YIrO6 with Ir5+(5d4) ions. Long-range magnetic order below 1.7 K is confirm…
Entanglement of Exact Excited Eigenstates of the Hubbard Model in Arbitrary Dimension
Oskar Vafek, Nicolas Regnault, B. Andrei Bernevig
We compute exactly the von Neumann entanglement entropy of the eta-pairing states - a large set of exact excited eigenstates of the Hubbard Hamiltonian. For the singlet eta-pairing…
Fate of spinons at the Mott point
Tsung-Han Lee, Serge Florens, Vladimir Dobrosavljevic
Gapless spin liquids have recently been observed in several frustrated Mott insulators, with elementary spin excitations - "spinons" - reminiscent of degenerate Fermi systems. Howe…
Slave Boson Theory of Orbital Differentiation with Crystal Field Effects: Application to UO
Nicola Lanatà, Yongxin Yao, Xiaoyu Deng +2
We derive an exact operatorial reformulation of the rotational invariant slave boson method and we apply it to describe the orbital differentiation in strongly correlated electron…
Resolving the VO controversy: Mott mechanism dominates the insulator-to-metal transition
Óscar Nájera, Marcello Civelli, Vladimir Dobrosavljević +1
We consider a minimal model to investigate the metal-insulator transition in VO. We adopt a Hubbard model with two orbital per unit cell, which captures the competition between…
Possible Nematic Spin Liquid in Spin- Antiferromagnetic System on the Square Lattice: Implication for the Nematic Paramagnetic State of FeSe
Shou-Shu Gong, W. Zhu, D. N. Sheng +1
The exotic normal state of iron chalcogenide superconductor FeSe, which exhibits vanishing magnetic order and possesses an electronic nematic order, triggered extensive exploration…
Investigation of the physical properties of the Ce2MAl7Ge4 (M = Co, Ir, Ni, Pd) heavy fermion compounds
Nirmal J. Ghimire, S. K. Cary, S. Eley +10
We report the synthesis, crystal structure and characterization by means of single crystal x-ray diffraction, neutron powder diffraction, magnetic, thermal and transport measuremen…
Interaction-Driven Spontaneous Quantum Hall Effect on Kagome Lattice
W. Zhu, S. S. Gong, T. S. Zeng +2
Non-interacting topological states of matter can be realized in band insulators with intrinsic spin-orbital couplings as a result of the nontrivial band topology. In recent years,…
Electronic Griffiths Phase in the Te - Doped Semiconductor FeSb
Rongwei Hu, Kefeng Wang, Hyejin Ryu +5
We report on the emergence of an Electronic Griffiths Phase (EGP) in the doped semiconductor FeSb, predicted for disordered insulators with random localized moments in the vi…
Emergent quasi-one-dimensionality in a kagomé magnet: A simple route to complexity
Shou-Shu Gong, Wei Zhu, Kun Yang +3
We study the ground state phase diagram of the quantum spin- Heisenberg model on the kagomé lattice with first- (), second- (), and third-neighbor interactio…
Simultaneous Metal-Insulator and Antiferromagnetic Transitions in Orthorhombic Perovskite Iridate Sr0.94Ir0.78O2.68 Single Crystals
H. Zheng, J. Terzic, Feng Ye +7
The orthorhombic perovskite SrIrO3 is a semimetal, an intriguing exception in iridates where the strong spin-orbit interaction coupled with electron correlations tends to impose a…
Statics and dynamics of the highly correlated spin ice Ho2Ge2O7
A. M. Hallas, J. A. M. Paddison, H. J. Silverstein +11
The pyrochlore Ho2Ge2O7 is a new highly correlated spin ice material. Physical property measurements including x-ray diffraction, dc susceptibility and ac susceptibility, confirm t…
Variational Monte Carlo study of chiral spin liquid in quantum antiferromagnet on the triangular lattice
Wen-Jun Hu, Shou-Shu Gong, D. N. Sheng
By using Gutzwiller projected fermionic wave functions and variational Monte Carlo technique, we study the spin- Heisenberg model with the first-neighbor (), second-neigh…
Removing the spin ice cap: magnetic ground states of rare earth tripod kagome lattice MgRESbO (RE = Gd, Dy, Er)
Zhiling Dun, Jennifer Trinh, Kuo Li +9
We present the structural and magnetic properties of a new compound family, MgRESbO (RE = Gd, Dy, Er), with a hitherto unstudied frustrating lattice, the "tripod…
Chiral spin liquid from magnetic Wannier states
I. Panfilov, A. Patri, Kun Yang +1
We present a mapping of a two-dimensional system of interacting bosons in a strong perpendicular magnetic field to an equivalent system of interacting bosons on the square lattice…