Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2003-06-20
Phys. Rev. Lett. 92, 207202 (2004)
Physics
Condensed Matter
Strongly Correlated Electrons
4 pages, 5 figures
Scientific paper
10.1103/PhysRevLett.92.207202
We report the results of Cu and Cl nuclear magnetic resonance experiments (NMR) and thermal expansion measurements in magnetic fields in the coupled dimer spin system TlCuCl3. We found that the field-induced antiferromagnetic transition as confirmed by the splitting of NMR lines is slightly discontinuous. The abrupt change of the electric field gradient at the Cl sites, as well as the sizable change of the lattice constants, across the phase boundary indicate that the magnetic order is accompanied by simultaneous lattice deformation.
Oosawa Akira
Takigawa Mitsuaki
Tanaka Hajime
Vasiliev Aleksey A.
Vyaselev O.
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