English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

S=1/2 quantum critical spin ladders produced by orbital ordering in Ba2CuTeO6

MPS-Authors
/persons/resource/persons160234

Yasuoka,  H.
Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons160232

Majumder,  M.
Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126528

Baenitz,  M.
Michael Baenitz, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Gibbs, A. S., Yamamoto, A., Yaresko, A. N., Knight, K. S., Yasuoka, H., Majumder, M., et al. (2017). S=1/2 quantum critical spin ladders produced by orbital ordering in Ba2CuTeO6. Physical Review B, 95(10): 104428, pp. 1-6. doi:10.1103/PhysRevB.95.104428.


Cite as: https://hdl.handle.net/11858/00-001M-0000-002D-3CEE-E
Abstract
The ordered hexagonal perovskite Ba2CuTeO6 hosts weakly coupled S = 1/2 spin ladders produced by an orbital ordering of Cu2+. The magnetic susceptibility chi(T) of Ba2CuTeO6 is well described by that expected for isolated spin ladders with exchange coupling of J approximate to 86 K but shows a deviation from the expected thermally activated behavior at low temperatures below T* approximate to 25 K. An anomaly in chi(T), indicative of magnetic ordering, is observed at T-mag = 16 K. No clear signature of long-range ordering, however, is captured so far in NMR 1/T-1, specific heat or neutron diffraction measurements at and below Tmag. The marginal magnetic transition, indicative of strong quantum fluctuations, is evidence that Ba2CuTeO6 is in very close proximity to a quantum critical point between magnetically ordered and spin-gapped phases controlled by interladder couplings.