Rb2Cu2Mo3O12
Chemical formula:
Rb2-2xCs2xCu2(MoO4)3
Lattice type:
Monoclinic
How to grow:
Bridgman furnace
Magnetic model:
S=1/2 frustrated chain
Why is it cool:
A tunable family of strongly frustrated complex quantum chain materials with non-trivial magnetoelectric properties
Growing single cystals of copper molybdenum oxides is extremly challenging, and growing them large is seemingly impossible. Nonetheless, some single crystal specimen were successfully synthesized in our group.
A complicated structure of copper molybdenum oxides gives rise to the very complex spin chains inside them. Inerestingly, while the Rb material is gapped and seems to have just a single filed-induced phase, the Cs counterpart orders already at zero field and has an extraodinarily complex phase diagram. Many of these phases could actually be multiferroic in their character.
S. Hayashida, D. Blosser, K. Yu. Povarov, Z. Yan, S. Gvasaliya, A. N. Ponomaryov, S. A. Zvyagin, and A. Zheludev, One- and three-dimensional quantum phase transitions and anisotropy in Rb2Cu2Mo3O12, external page Phys. Rev. B 100, 134427 (2019), external page arxiv:1908.07739
D. Flavián, S. Hayashida, L. Huberich, D. Blosser, K. Yu. Povarov, Z. Yan, S. Gvasaliya, A. Zheludev, Magnetic phase diagram of the linear quantum ferro-antiferromagnet Cs2Cu2Mo3O12 , external page arXiv:2004.10636, external page Phys. Rev. B 101, 224408