Neutron scattering evidence for isolated spin-1/2 ladders in (C5D12N)(2)CuBr4

Savici AT, Granroth GE, Broholm CL, Pajerowski DM, Brown CM, Talham DR, Meisel MW, Schmidt KP, Uhrig GS, Nagler SE (2009)

Publication Status: Published

Publication Type: Journal article

Publication year: 2009

Journal

Physical Review B American Physical Society

Publisher: AMER PHYSICAL SOC

Book Volume: 80

Journal Issue: 9

DOI: 10.1103/PhysRevB.80.094411

Abstract

Inelastic neutron scattering was used to determine the spin Hamiltonian for the singlet ground-state system of fully deuterated BPCB, (C5D12N)(2)CuBr4. A two-leg spin-1/2 ladder model, with J(perpendicular to) = (1.09 +/- 0.01) meV and J(parallel to) = (0.296 +/- 0.005) meV, accurately describes the data. The experimental limit on the effective interladder exchange constant is vertical bar J(int)(eff)vertical bar less than or similar to 0.006 meV, and the limit on total diagonal, intraladder exchange is vertical bar J(F)+J(F')vertical bar <= 0.1 meV. Including the effects of copper to bromide covalent spin transfer on the magnetic form factor, the experimental ratios of intraladder bond energies are consistent with the predictions of continuous unitary transformation.

Authors with CRIS profile

Kai Phillip Schmidt Professur für Theoretische Physik

Involved external institutions

Technische Universität Dortmund DE Germany (DE) Johns Hopkins University (JHU) US United States (USA) (US) Oak Ridge National Laboratory US United States (USA) (US) University of Florida US United States (USA) (US) National Institute of Standards and Technology (NIST) US United States (USA) (US)

How to cite

APA:

Savici, A.T., Granroth, G.E., Broholm, C.L., Pajerowski, D.M., Brown, C.M., Talham, D.R.,... Nagler, S.E. (2009). Neutron scattering evidence for isolated spin-1/2 ladders in (C5D12N)(2)CuBr4. Physical Review B, 80(9). https://dx.doi.org/10.1103/PhysRevB.80.094411

MLA:

Savici, A. T., et al. "Neutron scattering evidence for isolated spin-1/2 ladders in (C5D12N)(2)CuBr4." Physical Review B 80.9 (2009).

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