000099602 001__ 99602
000099602 005__ 20181203020714.0
000099602 0247_ $$2doi$$a10.1103/PhysRevLett.82.3152
000099602 022__ $$a0031-9007
000099602 037__ $$aARTICLE
000099602 245__ $$aHigh-temperature magnetic correlations in the 2D S=1/2 antiferromagnet copper formate tetradeuterate
000099602 260__ $$c1999
000099602 269__ $$a1999
000099602 336__ $$aJournal Articles
000099602 500__ $$aRiso Natl Lab, Condensed Matter Phys & Chem Dept, DK-4000 Roskilde, Denmark. Univ Edinburgh, Dept Chem, Edinburgh EH9 3JJ, Midlothian, Scotland. Ronnow, HM, Riso Natl Lab, Condensed Matter Phys & Chem Dept, DK-4000 Roskilde, Denmark.
000099602 520__ $$aThe temperature dependence of the structure factor S(k) of the instantaneous magnetic fluctuations in copper formate tetradeuterate has been investigated using neutron scattering techniques. Our data extend to unprecedently high temperatures (T similar to J) compared to the 2D exchange coupling. The correlation length xi and amplitude S-0 are in good agreement with the predictions for a 2D S = 1/2 Heisenberg antiferromagnet on a square lattice.
000099602 6531_ $$aQUANTUM HEISENBERG-ANTIFERROMAGNET
000099602 6531_ $$aSQUARE-LATTICE
000099602 6531_ $$aCORRELATION LENGTH
000099602 6531_ $$aLA2CUO4
000099602 6531_ $$aSCATTERING
000099602 700__ $$0243430$$g176429$$aRonnow, H. M.
000099602 700__ $$aMcMorrow, D. F.
000099602 700__ $$aHarrison, A.
000099602 773__ $$j82$$tPhysical Review Letters$$k15$$q3152-3155
000099602 909C0 $$xU11706$$0252200$$pLQM
000099602 909CO $$pSB$$particle$$ooai:infoscience.tind.io:99602
000099602 937__ $$aLQM-ARTICLE-1999-001
000099602 970__ $$a43/LQM
000099602 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000099602 980__ $$aARTICLE