ePubs
The open archive for STFC research publications
Home
About ePubs
Content Policies
News
Help
Privacy/Cookies
Suggest an Enhancement
Contact ePubs
Full Record Details
Persistent URL
http://purl.org/net/epubs/work/51268
Record Status
Checked
Record Id
51268
Title
Enhancement of magnetic order in the incommensurate phase of Mg-doped CuGeO3
Contributors
C Stock (University of Toronto, Department of Physics)
,
S Wakimoto (University of Toronto, Department of Physics)
,
RJ Birgeneau (University of Toronto, Department of Physics)
,
S Danilkin (Hahn Metiner Inst, Berlin)
,
J Klenke (Hahn Metiner Inst, Berlin)
,
P Smeibidl (Hahn Metiner Inst, Berlin)
,
P Vorderwisch (Hahn Metiner Inst, Berlin)
Abstract
We present neutron elastic scattering results at high magnetic fields for Mg-doped CuGeO3. For low magnesium concentrations, where a spin-Peierls phase is present, we find an enhancement of the long range antiferromagnetic order in the structural incommensurate phase induced by a high magnetic field. In the incommensurate phase, the Neel temperature increases with field leading to a gain in the magnetic Bragg peak intensity at low temperatures. We also find that the magnetic Bragg peaks remain commensurate even though the structure is incommensurate at high magnetic fields due to the formation of solitons. We interpret these results in terms of the solitons formed at high-magnetic fields effectively acting as doped impurities. Our results point to a strongly disordered ground state with the antiferromagnetic order localized around impurity sites.
Organisation
CCLRC
,
ISIS
Keywords
spin-Peierls; neutron scattering; doping; CuGeO3
,
Physics
Funding Information
Related Research Object(s):
Licence Information:
Language
English (EN)
Type
Details
URI(s)
Local file(s)
Year
Journal Article
J Phys Soc Jpn
74, no. 2 (2005): 746-752.
doi:10.1143/JPSJ.74.746
2005
Showing record 1 of 1
Recent Additions
Browse Organisations
Browse Journals/Series
Login to add & manage publications and access information for OA publishing
Username:
Password:
Useful Links
Chadwick & RAL Libraries
SHERPA FACT
SHERPA RoMEO
SHERPA JULIET
Journal Checker Tool
Google Scholar