Cavity Quantum Spin Resonance

2016 ◽  
Keyword(s):  
Quantum Spin ◽  
Spin Resonance

Electric dipole spin resonance in a quantum spin dimer system driven by magnetoelectric coupling

2018 ◽  
Vol 97 (14) ◽  
Author(s):  
Shojiro Kimura ◽  
Masashige Matsumoto ◽  
Mitsuru Akaki ◽  
Masayuki Hagiwara ◽  
Koichi Kindo ◽  
...  
Keyword(s):  
Electric Dipole ◽  
Magnetoelectric Coupling ◽  
Quantum Spin ◽  
Spin Dimer ◽  
Spin Resonance

scholarly journals Charge Order Breaks Magnetic Symmetry in Molecular Quantum Spin Chains

2012 ◽  
Vol 2012 ◽  
pp. 1-13 ◽  
Author(s):  
M. Dressel ◽  
M. Dumm ◽  
T. Knoblauch ◽  
B. Köhler ◽  
B. Salameh ◽  
...  
Keyword(s):  
Domain Walls ◽  
Interaction Mechanism ◽  
Charge Order ◽  
Magnetic Interaction ◽  
Quantum Spin ◽  
Quantum Spin Chains ◽  
Molecular Plane ◽  
Spin Resonance ◽  
Spin Arrangement ◽  
Magnetic Symmetry

Charge order affects most of the electronic properties but is believed not to alter the spin arrangement since the magnetic susceptibility remains unchanged. We present electron-spin-resonance experiments on quasi-one-dimensional(TMTTF)2Xsalts (X=PF6, AsF6, and SbF6), which reveal that the magnetic properties are modified belowTCOwhen electronic ferroelectricity sets in. The coupling of anions and organic molecules rotates the g-tensor out of the molecular plane creating magnetically nonequivalent sites on neighboring chains at domain walls. Due to anisotropic Zeeman interaction a novel magnetic interaction mechanism in the charge-ordered state is observed as a doubling of the rotational periodicity ofΔH.

ELECTRON-SPIN RESONANCE EVIDENCE OF THE QUANTUM SPIN GAP IN THE LiCu2O2

2002 ◽  
Vol 16 (20n22) ◽  
pp. 3373-3376
Author(s):  
S. A. ZVYAGIN ◽  
G. CAO ◽  
L.-C. BRUNEL ◽  
J. CROW
Keyword(s):  
Electron Spin Resonance ◽  
Electron Spin ◽  
Ground State ◽  
Quantum Spin ◽  
Electron Spin Resonance Study ◽  
Singlet Ground State ◽  
Excited Triplet ◽  
Spin Singlet ◽  
Spin Resonance ◽  
Spin Resonance Study

Results of the high-frequency/field electron spin resonance investigation of the quantum S = 1/2 chain compound LiCu2O2 are presented. Spin-singlet ground state (which occurs in LiCu2O2 as a result of the spin-dimerization) is revealed at a temperature above T ~ 23 K. The size of the gap between the spin-singlet ground state and the excited triplet is found to be Δ = 72 K. Electron spin resonance study confirms a magnetic phase transition in LiCu2O2, which results in the collapse of the spin-singlet ground state at T < 23 K.

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