Issue |
Europhys. Lett.
Volume 63, Number 3, August 2003
|
|
---|---|---|
Page(s) | 446 - 452 | |
Section | Condensed matter: electronic structure, electrical, magnetic, and optical properties | |
DOI | https://doi.org/10.1209/epl/i2003-00530-3 | |
Published online | 01 November 2003 |
Anomalous temperature dependence of the ESR linewidth
in
doped with magnetic impurities
and the universal relations in the Oshikawa-Affleck theory
1
General Physics Institute of RAS - Vavilov str., 38, 119991 Moscow, Russia
2
Kobe University - 1-1 Rokkodai, Nada, Kobe 657-8501, Japan
Received:
16
August
2002
Accepted:
23
May
2003
Studying the ESR line in doped with
,
, and
impurities we find that magnetic impurities
cause the anomalous low-temperature increase of the linewidth
(where
denotes
the resonant field) accompanied by the temperature-dependent
g-factor shift
. For
, these parameters
are strongly correlated and the ratio
follows
the general relation
. The observed effects agree with the
predictions of the theory of ESR developed by Oshikawa and
Affleck for 1D
antiferromagnetic chains.
PACS: 76.30.-v – Electron paramagnetic resonance and relaxation / 76.30.Fc – Iron group () ions and impurities (
–
)
© EDP Sciences, 2003
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.