Abstract
We report the results of μ SR measurement of the re-entrant spin-glass thiospinel CuCrZrS4. We have observed a relatively small enhancement of the relaxation rate at TC ∼ 60 K but no oscillations in the time spectra in the first magnetic phase between TC and Tf ∼ 7 K, suggesting that the first magnetic phase is not a long-range ordering state. A fast depolarization component in ZF-μ SR appears around 40 K and develops accompanied by the rapid increase of its relaxation rate with decreasing temperature down to Tf. The fast depolarization component is interpreted as the signature of the magnetic correlation attributed to the re-entrant spin-glass behavior. At all the measured temperatures, there remain relaxations even at high magnetic fields, revealing a dynamical local field due to strong magnetic correlations.
| Original language | English |
|---|---|
| Pages (from-to) | 649-651 |
| Number of pages | 3 |
| Journal | Physica B: Condensed Matter |
| Volume | 404 |
| Issue number | 5-7 |
| DOIs | |
| Publication status | Published - 2009 Apr 15 |
| Externally published | Yes |
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Keywords
- Large negative magnetoresistance
- Re-entrant spin-glass
- Thiospinel
ASJC Scopus subject areas
- Condensed Matter Physics
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering
Cite this
μ SR study of thiospinel CuCrZrS4. / Suzuki, Hiroyuki S.; Furubayashi, Takao; Kawashima, Yusuke; Nagata, Shoichi; Suzuki, Takao; Kawamata, Takayuki; Watanabe, Isao; Matsuzaki, Teiichiro; Amato, Alex.
In: Physica B: Condensed Matter, Vol. 404, No. 5-7, 15.04.2009, p. 649-651.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - μ SR study of thiospinel CuCrZrS4
AU - Suzuki, Hiroyuki S.
AU - Furubayashi, Takao
AU - Kawashima, Yusuke
AU - Nagata, Shoichi
AU - Suzuki, Takao
AU - Kawamata, Takayuki
AU - Watanabe, Isao
AU - Matsuzaki, Teiichiro
AU - Amato, Alex
PY - 2009/4/15
Y1 - 2009/4/15
N2 - We report the results of μ SR measurement of the re-entrant spin-glass thiospinel CuCrZrS4. We have observed a relatively small enhancement of the relaxation rate at TC ∼ 60 K but no oscillations in the time spectra in the first magnetic phase between TC and Tf ∼ 7 K, suggesting that the first magnetic phase is not a long-range ordering state. A fast depolarization component in ZF-μ SR appears around 40 K and develops accompanied by the rapid increase of its relaxation rate with decreasing temperature down to Tf. The fast depolarization component is interpreted as the signature of the magnetic correlation attributed to the re-entrant spin-glass behavior. At all the measured temperatures, there remain relaxations even at high magnetic fields, revealing a dynamical local field due to strong magnetic correlations.
AB - We report the results of μ SR measurement of the re-entrant spin-glass thiospinel CuCrZrS4. We have observed a relatively small enhancement of the relaxation rate at TC ∼ 60 K but no oscillations in the time spectra in the first magnetic phase between TC and Tf ∼ 7 K, suggesting that the first magnetic phase is not a long-range ordering state. A fast depolarization component in ZF-μ SR appears around 40 K and develops accompanied by the rapid increase of its relaxation rate with decreasing temperature down to Tf. The fast depolarization component is interpreted as the signature of the magnetic correlation attributed to the re-entrant spin-glass behavior. At all the measured temperatures, there remain relaxations even at high magnetic fields, revealing a dynamical local field due to strong magnetic correlations.
KW - Large negative magnetoresistance
KW - Re-entrant spin-glass
KW - Thiospinel
UR - http://www.scopus.com/inward/record.url?scp=62949106795&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=62949106795&partnerID=8YFLogxK
U2 - 10.1016/j.physb.2008.11.115
DO - 10.1016/j.physb.2008.11.115
M3 - Article
AN - SCOPUS:62949106795
VL - 404
SP - 649
EP - 651
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
SN - 0921-4526
IS - 5-7
ER -