Pressure-induced Magnetic Phase Transition and Structural Change in the Quantum Spin Liquid System Cu2(C5H12N2)2Br4

2006 ◽  
Vol 75 (4) ◽  
pp. 044708 ◽  
Author(s):  
Takayuki Tajiri ◽  
Hirokyuki Deguchi ◽  
Masaki Mito ◽  
Seishi Takagi
Keyword(s):  
Phase Transition ◽  
Structural Change ◽  
Magnetic Phase Transition ◽  
Magnetic Phase ◽  
Liquid System ◽  
Quantum Spin ◽  
Spin Liquid ◽  
Quantum Spin Liquid

scholarly journals Chemical tuning of the molecular quantum materials κ-[(BEDT-TTF)1-x(BEDT-STF)x]2Cu2(CN)3: from Mott-insulating quantum spin liquid to metallic Fermi liquid

2021 ◽  
Author(s):  
Yohei Saito ◽  
Roland Rösslhuber ◽  
Anja Löhle ◽  
Miriam Sanz Alonso ◽  
Maxim Wenzel ◽  
...  
Keyword(s):  
Phase Transition ◽  
Electronic Properties ◽  
Fermi Liquid ◽  
Mott Insulator ◽  
Quantum Spin ◽  
Spin Liquid ◽  
Molecular Conductors ◽  
Chemical Pressure ◽  
Metal Phase Transition ◽  
Quantum Spin Liquid

The electronic properties of molecular conductors can be readily varied via physical or chemical pressure as it increases the bandwidth W; this enables crossing the Mott insulator-to-metal phase transition by...

scholarly journals Phase diagram of YbZnGaO4 in applied magnetic field

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
William Steinhardt ◽  
P. A. Maksimov ◽  
Sachith Dissanayake ◽  
Zhenzhong Shi ◽  
Nicholas P. Butch ◽  
...  
Keyword(s):  
Phase Diagram ◽  
Applied Field ◽  
Magnetic Phase ◽  
Quantum Spin ◽  
Spin Liquid ◽  
Quantum Spin Liquid ◽  
Magnetic States ◽  
Parameter Dependent ◽  
High Degree

AbstractRecently, Yb-based triangular-lattice antiferromagnets have garnered significant interest as possible quantum spin-liquid candidates. One example is YbMgGaO4, which showed many promising spin-liquid features, but also possesses a high degree of disorder owing to site-mixing between the non-magnetic cations. To further elucidate the role of chemical disorder and to explore the phase diagram of these materials in applied field, we present neutron scattering and sensitive magnetometry measurements of the closely related compound, YbZnGaO4. Our results suggest a difference in magnetic anisotropy between the two compounds, and we use key observations of the magnetic phase crossover to motivate an exploration of the field- and exchange parameter-dependent phase diagram, providing an expanded view of the available magnetic states in applied field. This enriched map of the phase space serves as a basis to restrict the values of parameters describing the magnetic Hamiltonian with broad application to recently discovered related materials.

Pressure-induced antiferromagnetic order in a quantum spin liquid system Cu2(C5H12N2)2Br4

2004 ◽  
Vol 272-276 ◽  
pp. 952-953 ◽  
Author(s):  
H. Deguchi ◽  
Y. Mori ◽  
S. Watanabe ◽  
T. Tajiri ◽  
M. Mito ◽  
...  
Keyword(s):  
Liquid System ◽  
Quantum Spin ◽  
Antiferromagnetic Order ◽  
Spin Liquid ◽  
Quantum Spin Liquid
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