scholarly journals Quantum spin state transitions in the spin-1 equilateral triangular lattice antiferromagnet Na2BaNi(PO4)2

2021 ◽  
Vol 104 (10) ◽  
Author(s):  
N. Li ◽  
Q. Huang ◽  
A. Brassington ◽  
X. Y. Yue ◽  
W. J. Chu ◽  
...  
Keyword(s):  
Spin State ◽  
Triangular Lattice ◽  
Quantum Spin ◽  
State Transitions ◽  
Triangular Lattice Antiferromagnet

scholarly journals Survival of itinerant excitations and quantum spin state transitions in YbMgGaO4 with chemical disorder

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
X. Rao ◽  
G. Hussain ◽  
Q. Huang ◽  
W. J. Chu ◽  
N. Li ◽  
...  
Keyword(s):  
Spin State ◽  
Magnetic Ordering ◽  
Temperature Limit ◽  
Quantum Spin ◽  
Spin Fluctuations ◽  
State Transitions ◽  
Spin Liquid ◽  
Magnetic Ground State ◽  
Effective Spin ◽  
Ideal System

AbstractA recent focus of quantum spin liquid (QSL) studies is how disorder/randomness in a QSL candidate affects its true magnetic ground state. The ultimate question is whether the QSL survives disorder or the disorder leads to a “spin-liquid-like” state, such as the proposed random-singlet (RS) state. Since disorder is a standard feature of most QSL candidates, this question represents a major challenge for QSL candidates. YbMgGaO4, a triangular lattice antiferromagnet with effective spin-1/2 Yb3+ions, is an ideal system to address this question, since it shows no long-range magnetic ordering with Mg/Ga site disorder. Despite the intensive study, it remains unresolved as to whether YbMgGaO4 is a QSL or in the RS state. Here, through ultralow-temperature thermal conductivity and magnetic torque measurements, plus specific heat and DC magnetization data, we observed a residual κ0/T term and series of quantum spin state transitions in the zero temperature limit for YbMgGaO4. These observations strongly suggest that a QSL state with itinerant excitations and quantum spin fluctuations survives disorder in YbMgGaO4.

scholarly journals Pressure-tuning the quantum spin Hamiltonian of the triangular lattice antiferromagnet Cs2CuCl4

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
S. A. Zvyagin ◽  
D. Graf ◽  
T. Sakurai ◽  
S. Kimura ◽  
H. Nojiri ◽  
...  
Keyword(s):  
Triangular Lattice ◽  
Quantum Spin ◽  
Spin Hamiltonian ◽  
Pressure Tuning ◽  
Triangular Lattice Antiferromagnet

scholarly journals Instability of a quantum spin liquid in an organic triangular-lattice antiferromagnet

2010 ◽  
Vol 6 (9) ◽  
pp. 673-676 ◽  
Author(s):  
T. Itou ◽  
A. Oyamada ◽  
S. Maegawa ◽  
R. Kato
Keyword(s):  
Triangular Lattice ◽  
Quantum Spin ◽  
Spin Liquid ◽  
Quantum Spin Liquid ◽  
Triangular Lattice Antiferromagnet

Triangular lattice antiferromagnet RbFe(MoO4)2

2010 ◽  
Vol 180 (8) ◽  
pp. 880 ◽  
Author(s):  
Aleksandr I. Smirnov ◽  
L.E. Svistov ◽  
Lyudmila A. Prozorova ◽  
O.A. Petrenko ◽  
M. Hagiwara
Keyword(s):  
Triangular Lattice ◽  
Triangular Lattice Antiferromagnet
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