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Spatially Resolved Magnetization in the Bose-Einstein Condensed State of BaCuSi2O6: Evidence for Imperfect Frustration
S. Krämer, N. Laflorencie, R. Stern +5
In order to understand the nature of the two-dimensional Bose-Einstein condensed (BEC) phase in BaCuSi2O6, we performed detailed 63Cu and 29Si NMR above the critical magnetic field…
Field-induced quantum soliton lattice in a frustrated two-leg spin-1/2 ladder
F. Casola, T. Shiroka, A. Feiguin +10
The field-induced quantum phase transitions (QPT) of the spin ladder material Bi(Cu(1-x)Znx)2PO6 have been investigated via 31P nuclear magnetic resonance (NMR) on single-crystal s…
Microscopic properties of the "pinwheel" kagome compound Rb_2Cu_3SnF_{12}
M. S. Grbić, S. Krämer, C. Berthier +4
Using Cu nuclear magnetic resonance (NMR) in magnetic fields up to 30 T we study the microscopic properties of the 12-site valence-bond-solid ground state in the "pinwhee…
Field-induced magnetic behavior in quasi-one-dimensional Ising-like antiferromagnet BaCo2V2O8: A single-crystal neutron diffraction study
E. Canévet, B. Grenier, M. Klanjšek +4
BaCo2V2O8 is a nice example of a quasi-one-dimensional quantum spin system that can be described in terms of Tomonaga-Luttinger liquid physics. This is explored in the present stud…
Incomplete devil's staircase in the magnetization curve of SrCu2(BO3)2
Masashi Takigawa, Mladen Horvatić, Takeshi Waki +7
We report on NMR and torque measurements on the frustrated quasi-two-dimensional spin-dimer system SrCu2(BO3)2 in magnetic fields up to 34 T that reveal a sequence of magnetization…
Quantum-critical spin dynamics in quasi-one-dimensional antiferromagnets
S. Mukhopadhyay, M. Klanjšek, M. S. Grbić +8
By means of nuclear spin-lattice relaxation rate 1/T1, we follow the spin dynamics as a function of the applied magnetic field in two gapped one-dimensional quantum antiferromagnet…