Spin relaxation resonances due to the spin-axis interaction in dense rubidium and cesium vapor

Phys Rev Lett. 2000 Nov 13;85(20):4237-40. doi: 10.1103/PhysRevLett.85.4237.


Resonances in the magnetic decoupling curves for the spin relaxation of dense alkali-metal vapors prove that much of the relaxation is due to the spin-axis interaction in triplet dimers. Initial estimates of the spin-axis coupling coefficients for the dimers (likely accurate to a factor of 2) are |lambda|/h = 290 MHz for Rb; 2500 MHz for Cs.

Publication types

  • Research Support, U.S. Gov't, Non-P.H.S.
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Cesium / chemistry*
  • Magnetic Resonance Spectroscopy
  • Rubidium / chemistry*


  • Cesium
  • Rubidium