000257287 001__ 257287
000257287 005__ 20190619220049.0
000257287 0247_ $$2doi$$a10.1103/PhysRevB.98.054409
000257287 02470 $$a10.1103/PhysRevB.98.054409$$2DOI
000257287 037__ $$aARTICLE
000257287 245__ $$aSinglet state formation and its impact on the magnetic structure in the tetramer system SeCuO3
000257287 260__ $$c2018
000257287 269__ $$a2018
000257287 336__ $$aJournal Articles
000257287 520__ $$aWe present an experimental investigation of the magnetic structure in a tetramer system SeCuO3 using neutron powder-diffraction and nuclear resonance techniques. We establish a commensurate antiferromagnetic ordering with a propagation vector k = (0, 0, 1). The order parameter follows a critical behavior near T-N = 8 K with a critical exponent beta = 0.32 in agreement with a three-dimensional universality class. Evidence is presented that a singlet state starts to form on tetramers at temperatures as high as 200 K, and its signature is preserved within the ordered state through a strong renormalization of the ordered magnetic moment on two nonequivalent copper sites m(Cu1) approximate to 0.35(mu B) and m(Cu2) < 0.8(mu B) at 1.5 K.
000257287 536__ $$aFNS$$c166298
000257287 536__ $$aFNS$$c169699
000257287 700__ $$aCvitanić, Tonči
000257287 700__ $$aŠurija, Vinko
000257287 700__ $$aPrša, Krunoslav
000257287 700__ $$aZaharko, Oksana
000257287 700__ $$aKupčić, Ivan
000257287 700__ $$aBabkevich, Peter
000257287 700__ $$aFrontzek, Matthias
000257287 700__ $$aPožek, Miroslav
000257287 700__ $$aBerger, Helmuth
000257287 700__ $$aMagrez, Arnaud
000257287 700__ $$g176429$$aRønnow, Henrik M.$$0243430
000257287 700__ $$aGrbić, Mihael S.
000257287 700__ $$aŽivković, Ivica
000257287 773__ $$tPhysical Review B$$j98$$k5$$q054409
000257287 8560_ $$fhenrik.ronnow@epfl.ch
000257287 909C0 $$pLQM$$mhenrik.ronnow@epfl.ch$$0252200$$zPasquier, Simon$$xU11706
000257287 909CO $$pSB$$particle$$ooai:infoscience.epfl.ch:257287
000257287 960__ $$ahenrik.ronnow@epfl.ch
000257287 961__ $$amanon.velasco@epfl.ch
000257287 973__ $$aEPFL$$sPUBLISHED$$rREVIEWED
000257287 980__ $$aARTICLE
000257287 981__ $$aoverwrite