scholarly journals Quantum Spin State Selectivity and Magnetic Tuning of Ultracold Chemical Reactions of Triplet Alkali-Metal Dimers with Alkali-Metal Atoms

2021 ◽  
Vol 127 (10) ◽  
Author(s):  
Rebekah Hermsmeier ◽  
Jacek Kłos ◽  
Svetlana Kotochigova ◽  
Timur V. Tscherbul
2005 ◽  
Vol 413 (4-6) ◽  
pp. 420-428 ◽  
Author(s):  
D. Pacilé ◽  
A. Cupolillo ◽  
C. Giallombardo ◽  
M. Papagno ◽  
L. Papagno

2017 ◽  
Vol 19 (25) ◽  
pp. 16512-16523 ◽  
Author(s):  
Michał Tomza

Cold interactions and channels of chemical reactions between linear polyatomic anions and atoms are investigated, opening the way for sympathetic cooling and controlled chemistry in these systems.


2021 ◽  
Vol 12 (1) ◽  
Author(s):  
X. Rao ◽  
G. Hussain ◽  
Q. Huang ◽  
W. J. Chu ◽  
N. Li ◽  
...  

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.


ChemPhysChem ◽  
2012 ◽  
Vol 14 (4) ◽  
pp. 716-722 ◽  
Author(s):  
Andreas W. Hauser ◽  
Thomas Gruber ◽  
Michael Filatov ◽  
Wolfgang E. Ernst

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