000126311 001__ 126311
000126311 005__ 20241125101153.0
000126311 0247_ $$2doi$$a10.1039/d2sc06407c
000126311 0248_ $$2sideral$$a133630
000126311 037__ $$aART-2023-133630
000126311 041__ $$aeng
000126311 100__ $$aBurzurí, Enrique
000126311 245__ $$aA quantum spin liquid candidate isolated in a two-dimensional Co<sup>II</sup>Rh<sup>III</sup> bimetallic oxalate network
000126311 260__ $$c2023
000126311 5060_ $$aAccess copy available to the general public$$fUnrestricted
000126311 5203_ $$aA quantum spin liquid (QSL) is an elusive state of matter characterized by the absence of long-range magnetic order, even at zero temperature, and by the presence of exotic quasiparticle excitations. In spite of their relevance for quantum communication, topological quantum computation and the understanding of strongly correlated systems, like high-temperature superconductors, the unequivocal experimental identification of materials behaving as QSLs remains challenging. Here, we present a novel 2D heterometallic oxalate complex formed by high-spin Co(II) ions alternating with diamagnetic Rh(III) in a honeycomb lattice. This complex meets the key requirements to become a QSL: a spin ½ ground state for Co(II), determined by spin–orbit coupling and crystal field, a magnetically-frustrated triangular lattice due to the presence of antiferromagnetic correlations, strongly suppressed direct exchange interactions and the presence of equivalent interfering superexchange paths between Co centres. A combination of electronic paramagnetic resonance, specific heat and ac magnetic susceptibility measurements in a wide range of frequencies and temperatures shows the presence of strong antiferromagnetic correlations concomitant with no signs of magnetic ordering down to 15 mK. These results show that bimetallic oxalates are appealing QSL candidates as well as versatile systems to chemically fine tune key aspects of a QSL, like magnetic frustration and superexchange path geometries.
000126311 536__ $$9info:eu-repo/grantAgreement/ES/MICINN/RTI2018-096075-A-C22$$9info:eu-repo/grantAgreement/ES/MICINN/PID2021-124796OB-I00$$9info:eu-repo/grantAgreement/ES/MICINN/PID2021-124734OB-C21$$9info:eu-repo/grantAgreement/ES/MICINN/PID2020-118117RB-I00$$9info:eu-repo/grantAgreement/ES/MICINN/CEX2019-000925-S$$9info:eu-repo/grantAgreement/ES/MICINN/CEX2019-000919-M$$9info:eu-repo/grantAgreement/ES/MDM/CEX2018-000805-M$$9This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 862893-FATMOLS$$9info:eu-repo/grantAgreement/EC/H2020/862893/EU/Molecular spin qudits offering new hope for quantum computing/FATMOLS$$9This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 788222-Mol-2D$$9info:eu-repo/grantAgreement/EC/H2020/ 788222/EU/Molecule-induced control over 2D Materials/Mol-2D$$9info:eu-repo/grantAgreement/ES/DGA/E09-17R-Q-MAD$$9info:eu-repo/grantAgreement/ES/CSIC/PTI-001$$9info:eu-repo/grantAgreement/ES/MICINN/RTI2018-096075-B-C21$$9info:eu-repo/grantAgreement/ES/MICINN/RYC2019-028429-I
000126311 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc$$uhttp://creativecommons.org/licenses/by-nc/3.0/es/
000126311 590__ $$a7.6$$b2023
000126311 592__ $$a2.333$$b2023
000126311 591__ $$aCHEMISTRY, MULTIDISCIPLINARY$$b40 / 231 = 0.173$$c2023$$dQ1$$eT1
000126311 593__ $$aChemistry (miscellaneous)$$c2023$$dQ1
000126311 594__ $$a14.4$$b2023
000126311 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000126311 700__ $$0(orcid)0000-0002-8125-877X$$aMartínez-Pérez, María José
000126311 700__ $$aMartí-Gastaldo, Carlos
000126311 700__ $$0(orcid)0000-0002-8028-9064$$aEvangelisti, Marco
000126311 700__ $$aMañas-Valero, Samuel
000126311 700__ $$aCoronado, Eugenio
000126311 700__ $$0(orcid)0000-0002-5406-3280$$aMartínez, Jesús I.$$uUniversidad de Zaragoza
000126311 700__ $$aGalán-Mascaros, José Ramón
000126311 700__ $$0(orcid)0000-0001-6284-0521$$aLuis, Fernando
000126311 7102_ $$12003$$2395$$aUniversidad de Zaragoza$$bDpto. Física Materia Condensa.$$cÁrea Física Materia Condensada
000126311 773__ $$g14 (2023), 3899-3906$$pChem. sci.$$tCHEMICAL SCIENCE$$x2041-6520
000126311 8564_ $$s1018956$$uhttps://zaguan.unizar.es/record/126311/files/texto_completo.pdf$$yVersión publicada
000126311 8564_ $$s2972742$$uhttps://zaguan.unizar.es/record/126311/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000126311 909CO $$ooai:zaguan.unizar.es:126311$$particulos$$pdriver
000126311 951__ $$a2024-11-22-12:07:45
000126311 980__ $$aARTICLE