Electron paramagnetic resonance with parallel pumping in quantum spin chains with field-induced spin gap

2002 ◽  
Vol 66 (1) ◽  
Author(s):  
A. A. Zvyagin ◽  
G. A. Zvyagina
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Quantum Spin ◽  
Spin Chains ◽  
Quantum Spin Chains ◽  
Paramagnetic Resonance ◽  
Spin Gap ◽  
Electron Paramagnetic

scholarly journals Paramagnetic Resonance as a Probe of the Spin Gap in Normal State of Superconductor

2011 ◽  
Vol 2011 ◽  
pp. 1-3
Author(s):  
Frank J. Owens
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Transition Temperature ◽  
Normal State ◽  
Oxide Superconductors ◽  
Superconducting Transition ◽  
Paramagnetic Resonance ◽  
Spin Gap ◽  
Order Of Magnitude ◽  
Copper Oxide Superconductors ◽  
Electron Paramagnetic

It is shown that electron paramagnetic resonance (EPR) can be used to observe the spin gap in copper oxide superconductors. The electron paramagnetic resonance spectra of the Cu2+ ion in underdoped show a pronounced decrease in intensity in the normal state as the temperature is lowered to 133 K, the superconducting transition temperature of the material. The decrease is attributed to a pairing of the Cu2+   spins to form a spin gap. A spin gap of 0.0533 eV is estimated from the data which is in order of magnitude agreement with values obtained from NMR measurements.

Solvable nineteen-vertex models and quantum spin chains of spin one

1994 ◽  
Vol 4 (8) ◽  
pp. 1151-1159 ◽  
Author(s):  
Makoto Idzumi ◽  
Tetsuji Tokihiro ◽  
Masao Arai
Keyword(s):  
Quantum Spin ◽  
Spin Chains ◽  
Quantum Spin Chains ◽  
Vertex Models

ELECTRON PARAMAGNETIC RESONANCE STUDIES OF PHASE TRANSITIONS IN KCN

1976 ◽  
Vol 37 (C7) ◽  
pp. C7-241-C7-246 ◽  
Author(s):  
J.P. VON DER WEID ◽  
L.C. SCAVARDA DO CARMO ◽  
R. R. DO SANTOS ◽  
B. KOILLER ◽  
S. COSTA RIBEIRO ◽  
...  
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Phase Transitions ◽  
Paramagnetic Resonance ◽  
Electron Paramagnetic

Electron paramagnetic resonance in silicon and germanium

1964 ◽  
Vol 83 (7) ◽  
pp. 433-502 ◽  
Author(s):  
L.D. Bogomolova ◽  
V.N. Lazukin ◽  
I.V. Chepeleva
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Paramagnetic Resonance ◽  
Silicon And Germanium ◽  
Electron Paramagnetic
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