Home News About Us Contact Contributors Disclaimer Privacy Policy Help FAQ

Home
Search
Quick Search
Advanced
Fulltext
Browse
Collections
Persons
My eDoc
Session History
Login
Name:
Password:
Documentation
Help
Support Wiki
Direct access to
document ID:


          Institute: MPI für Festkörperforschung     Collection: FKF Publikationen 2002     Display Documents



  history
ID: 7505.0, MPI für Festkörperforschung / FKF Publikationen 2002
Magnetic superstructure in the two-dimensional quantum antiferromagnet SrCu2(BO3)2
Authors:Kodama, K.; Takigawa, M.; Horvatić, M.; Berthier, C.; Kageyama, H.; Ueda, Y.; Miyahara, S.; Becca, F.; Mila, F.
Language:English
Date of Publication (YYYY-MM-DD):2002
Title of Journal:Science
Volume:298
Issue / Number:5592
Start Page:395
End Page:399
Review Status:Peer-review
Audience:Not Specified
Abstract / Description:We report the observation of magnetic superstructure in a
magnetization plateau state of SrCu2(BO3)(2), a frustrated
quasi two-dimensional quantum spin system. The Cu and B nuclear
magnetic resonance (NMR) spectra at 35 millikelvin indicate an
apparently discontinuous phase transition from uniform
magnetization to a modulated superstructure near 27 tesla,
above which a magnetization plateau at 1/8 of the full
saturation has been observed. Comparison of the Cu NMR spectrum
and the theoretical analysis of a Heisenberg spin model
demonstrates the crystallization of itinerant triplets in the
plateau phase within a large rhomboid unit cell (16 spins per
layer) showing oscillations of the spin polarization. Thus, we
are now in possession of an interesting model system to study a
localization transition of strongly interacting quantum
particles.
External Publication Status:published
Document Type:Article
Communicated by:Michaela Asen-Palmer
Affiliations:MPI für Festkörperforschung
External Affiliations:; Univ Tokyo, Inst Solid State Phys, Chiba 2778581, Japan
; CNRS, Grenoble High Magnet Field Lab, F-38042 Grenoble, France
; Max Planck Inst Festkorperforsch, F-38042 Grenoble, France
; Univ Grenoble 1, Spectrometrie Phys Lab, F-38402 St Martin Dheres, France
; Univ Lausanne, Inst Phys Theor, CH-1015 Lausanne, Switzerland
Identifiers:ISI:000178510400043
ISSN:0036-8075
The scope and number of records on eDoc is subject to the collection policies defined by each institute - see "info" button in the collection browse view.