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| Experimental realization of a 2D fractional quantum spin liquid |
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| Author(s): Coldea R, Tennant DA, Tsvelik AM, Tylczynski Z |
| Source: PHYSICAL REVIEW LETTERS Volume: 86 Issue: 7 Pages: 1335-1338 Published: FEB 12 2001 |
| Times Cited: 118 References: 27 |
| Abstract: The ground-state ordering and dynamics of the two-dimensional S = 1/2 frustrated Heisenberg antiferromagnet Cs2CuCl4 are explored using neutron scattering in high magnetic fields. We find that the dynamic correlations show a highly dispersive continuum of excited states, characteristic of the resonating valence bond state, arising from pairs of S = 1/2 spinons. Quantum renormalization factors for the excitation energies (1.65) and incommensuration (0.56) are large. |
| Document Type: Article |
| Language: English |
| Reprint Address: Coldea, R (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA |
Addresses:
1. Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA
2. Rutherford Appleton Lab, ISIS Facil, Didcot OX11 0QX, Oxon England
3. Univ Oxford, Clarendon Lab, Oxford OX1 3PU, England
4. Univ Oxford, Dept Theoret Phys, Oxford OX1 3NP, England
5. Adam Mickiewicz Univ, Inst Phys, PL-61614 Poznan, Poland |
| Publisher: AMERICAN PHYSICAL SOC, ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA |
| Subject Category: Physics, Multidisciplinary |
| IDS Number: 401BT |
| ISSN: 0031-9007 |
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