Bound spinons in an antiferromagnetic S=1/2 chain with a staggered field

Show simple item record

dc.contributor.author Kenzelmann, M.
dc.contributor.author Chen, Y.
dc.contributor.author Broholm, C.
dc.contributor.author Reich, D.H.
dc.contributor.author Qiu, Y.
dc.date.accessioned 2010-01-07T21:10:30Z
dc.date.available 2010-01-07T21:10:30Z
dc.date.issued 2004-07-02
dc.identifier.citation Physical Review Letters 2 July 2004, vol.93, no.1, pp. 017204/1-4 en
dc.identifier.uri http://jhir.library.jhu.edu/handle/1774.2/33756
dc.description.abstract Inelastic neutron scattering was used to measure the magnetic field dependence of spin excitations in the antiferromagnetic S=1/2 chain CuCl2·2(dimethylsulfoxide) in the presence of uniform and staggered fields. Dispersive bound states emerge from a zero-field two-spinon continuum with different finite energy minima at wave numbers q=π and qi≈π(1-2<Sz>). The ratios of the field dependent excitation energies are in excellent agreement with predictions for breather and soliton solutions to the quantum sine-Gordon model, the proposed low-energy theory for S=1/2 chains in a staggered field. The data are also consistent with the predicted soliton and n=1,2 breather polarizations and scattering cross sections. en
dc.description.provenance Submitted by Susan Vazakas (svazakas@jhu.edu) on 2010-01-07T20:37:37Z No. of bitstreams: 1 Broholm Bound 2004.pdf: 257540 bytes, checksum: 2bb9760c2f986225cc39dd62f3ef8829 (MD5) en
dc.description.provenance Approved for entry into archive by David Reynolds(davidr@jhu.edu) on 2010-01-07T21:10:30Z (GMT) No. of bitstreams: 1 Broholm Bound 2004.pdf: 257540 bytes, checksum: 2bb9760c2f986225cc39dd62f3ef8829 (MD5) en
dc.description.provenance Made available in DSpace on 2010-01-07T21:10:30Z (GMT). No. of bitstreams: 1 Broholm Bound 2004.pdf: 257540 bytes, checksum: 2bb9760c2f986225cc39dd62f3ef8829 (MD5) Previous issue date: 2004-07-02 en
dc.language.iso en_US en
dc.publisher American Physical Society en
dc.subject staggered field en
dc.subject bound spinons en
dc.subject antiferromagnetic S = 1/2 chain en
dc.subject spin dynamics en
dc.subject solitons en
dc.subject sine-Gordon equation en
dc.subject neutron diffraction en
dc.subject spin excitations en
dc.subject CuCl2·2(dimethylsulfoxide) en
dc.subject zero-field two-spinon continuum en
dc.subject neutron diffraction en
dc.subject molecular magnetism en
dc.subject copper compounds en
dc.subject bound states en
dc.subject antiferromagnetic materials en
dc.subject finite energy minima en
dc.subject breather solutions en
dc.subject soliton solutions en
dc.subject quantum sine-Gordon model en
dc.title Bound spinons in an antiferromagnetic S=1/2 chain with a staggered field en
dc.type Article en

Files in this item

Files Size Format Download
Broholm Bound 2004.pdf 257.5Kb application/pdf Download

This item appears in the following Collection(s)

Show simple item record