000070895 001__ 70895 000070895 005__ 20200221144240.0 000070895 0247_ $$2doi$$a10.1103/PhysRevB.94.174409 000070895 0248_ $$2sideral$$a106319 000070895 037__ $$aART-2016-106319 000070895 041__ $$aeng 000070895 100__ $$aFreitas, D.C. 000070895 245__ $$aMagnetism and charge order in the ladder compound Co3O2BO3 000070895 260__ $$c2016 000070895 5060_ $$aAccess copy available to the general public$$fUnrestricted 000070895 5203_ $$aThere are two known ludwigites containing a single transition metal element, Fe3O2BO3 and Co3O2BO3. The structure of these materials has low-dimensional units in the form of three-legged ladders (3LL) that confer to each of them unique magnetic and electronic properties. Fe3O2BO3 presents a staggered charge density wave (CDW) transition in the ladders near room temperature and two magnetic transitions. It has remained a mystery why the other compound Co3O2BO3 behaves so conventionally, with a single magnetic transition and no CDW in spite of similar structural and electronic configurations. Neutron diffraction results presented here in this system finally unravel these differences. Far from a trivial explanation, we uncover a coexistence of low and high spin Co ions in well-defined octahedral sites. Our results allow one to solve the contrasting behavior of the Fe and Co ludwigites in terms of a subtle and unique charge ordering mechanism occurring at the microscopic level of the rungs of the 3LL. 000070895 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc$$uhttp://creativecommons.org/licenses/by-nc/3.0/es/ 000070895 592__ $$a0.0$$b2016 000070895 593__ $$aElectronic, Optical and Magnetic Materials$$c2016 000070895 593__ $$aCondensed Matter Physics$$c2016 000070895 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion 000070895 700__ $$aMedrano, C.P.C. 000070895 700__ $$aSanchez, D.R. 000070895 700__ $$aRegueiro, M.N. 000070895 700__ $$0(orcid)0000-0002-8505-5232$$aRodriguez-Velamazan, J.A. 000070895 700__ $$aContinentino, M.A. 000070895 773__ $$g94, 17 (2016), 174409 [5 pp]$$pPhys. Rev. B$$tPhysical Review B$$x2469-9950 000070895 8564_ $$s713931$$uhttps://zaguan.unizar.es/record/70895/files/texto_completo.pdf$$yVersión publicada 000070895 8564_ $$s129952$$uhttps://zaguan.unizar.es/record/70895/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada 000070895 909CO $$ooai:zaguan.unizar.es:70895$$particulos$$pdriver 000070895 951__ $$a2020-02-21-13:21:30 000070895 980__ $$aARTICLE