Spin liquid ground state of the half-filled Kondo lattice in one dimension

The ground state (GS) of interacting particles on a disordered one-dimensional (1D) host-lattice is studied by a new numerical method. It is shown that if the concentration of particles is small, then even a weak disorder of the host-lattice breaks the long-range order of Generalized Wigner Crystal (GWC), replacing it by the sequence of blocks (domains) of particles with random lengths. The mean domains length as a function of the host-lattice disorder parameter is also found. It is shown that the domain structure can be detected by a weak random field, whose form is similar to that of the ground state but has fluctuating domain walls positions. This is because the generalized magnetization corresponding to the field has a sufficiently sharp peak as a function of the amplitude of fluctuations for small amplitudes.

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Field-induced instability of the quantum spin liquid ground state in the Jeff=12 triangular-lattice compound NaYbO2

Physical Review B ◽

10.1103/physrevb.99.180401 ◽

2019 ◽

Vol 99 (18) ◽

Cited By ~ 28

Author(s):

K. M. Ranjith ◽

D. Dmytriieva ◽

S. Khim ◽

J. Sichelschmidt ◽

S. Luther ◽

...

Keyword(s):

Triangular Lattice ◽

Ground State ◽

Quantum Spin ◽

Spin Liquid ◽

Quantum Spin Liquid

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Competing Anisotropies in the Ferromagnetic Kondo-Lattice Compound YbNiSn: Observation of a Complex Magnetic Ground State under High Pressure

Physical Review Letters ◽

10.1103/physrevlett.77.3228 ◽

1996 ◽

Vol 77 (15) ◽

pp. 3228-3231 ◽

Cited By ~ 23

Author(s):

K. Drescher ◽

M. M. Abd-Elmeguid ◽

H. Micklitz ◽

J. P. Sanchez

Keyword(s):

High Pressure ◽

Ground State ◽

Kondo Lattice ◽

Magnetic Ground State

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Hubbard model in one dimension with a general bond-charge interaction: Analytical ground-state solution for the pairing of two particles

Physical Review B ◽

10.1103/physrevb.67.193105 ◽

2003 ◽

Vol 67 (19) ◽

Cited By ~ 2

Author(s):

E. Vallejo ◽

O. Navarro

Keyword(s):

Hubbard Model ◽

Ground State ◽

Ground State Solution ◽

State Solution ◽

One Dimension ◽

Charge Interaction ◽

Bond Charge

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Chiral superconductivity in the alternate stacking compound 4Hb-TaS2

Science Advances ◽

10.1126/sciadv.aax9480 ◽

2020 ◽

Vol 6 (13) ◽

pp. eaax9480 ◽

Cited By ~ 3

Author(s):

A. Ribak ◽

R. Majlin Skiff ◽

M. Mograbi ◽

P. K. Rout ◽

M. H. Fischer ◽

...

Keyword(s):

Ground State ◽

Time Reversal ◽

Charge Density Wave ◽

Density Wave ◽

Spin Liquid ◽

Strongly Correlated ◽

Superconducting Transition ◽

Wave State ◽

Two Dimensional Materials ◽

Different Types

Van der Waals materials offer unprecedented control of electronic properties via stacking of different types of two-dimensional materials. A fascinating frontier, largely unexplored, is the stacking of strongly correlated phases of matter. We study 4Hb-TaS2, which naturally realizes an alternating stacking of 1T-TaS2 and 1H-TaS2 structures. The former is a well-known Mott insulator, which has recently been proposed to host a gapless spin-liquid ground state. The latter is a superconductor known to also host a competing charge density wave state. This raises the question of how these two components affect each other when stacked together. We find a superconductor with a Tc of 2.7 Kelvin and anomalous properties, of which the most notable one is a signature of time-reversal symmetry breaking, abruptly appearing at the superconducting transition. This observation is consistent with a chiral superconducting state.

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