Kotov, Valeri N.Zhitomirsky, Michael E.Elhajal, MagedMila, Frédéric2019-06-282019-06-282019-06-28200410.1103/PhysRevB.70.214401https://infoscience.epfl.ch/handle/20.500.14299/158652Weak antiferromagnetism and dimer order in quantum systems of coupled tetrahedratext::journal::journal article::research article