Dimensional Reduction in Quantum Dipolar Antiferromagnets.

  title={Dimensional Reduction in Quantum Dipolar Antiferromagnets.},
  author={P. Babkevich and M. Jeong and Y. Matsumoto and I. Kova{\'c}evi{\'c} and A. Finco and R. Toft-Petersen and C. Ritter and M. M{\aa}nsson and S. Nakatsuji and H. R{\o}nnow},
  journal={Physical review letters},
  volume={116 19},
We report ac susceptibility, specific heat, and neutron scattering measurements on a dipolar-coupled antiferromagnet LiYbF_{4}. For the thermal transition, the order-parameter critical exponent is found to be 0.20(1) and the specific-heat critical exponent -0.25(1). The exponents agree with the 2D XY/h_{4} universality class despite the lack of apparent two-dimensionality in the structure. The order-parameter exponent for the quantum phase transitions is found to be 0.35(1) corresponding to (2… Expand
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  • R. Rosenfeld
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I am writing with a simple plea to balance the voluminous articles about treatment in your journal with a modicum of information about nature and caring effects to rekindle the perception of physicians as healers, not only treaters, who relish the gifts of nature, and foster the humanistic aspect of medicine that has thrived for millennia. Expand
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