Abstract
Muon spin rotation experiments are carried out on clinoatacamite, Cu2Cl(OH)3, which is a new geometrically frustrated system featuring a three-dimensional network of corner-sharing tetrahedral 3d Cu2+ spins. A long-range antiferromagnetic order occurs below 18.1 K with a surprisingly small entropy release of about 0.05Rln2/Cu. Below 6.5K, the static long-range order transforms abruptly into a metastable state with nearly complete depolarization of muon spins which suggests strong fluctuation. The system then enters a state in which partial long-range order and spin fluctuation coexist down to the lowest experimentally attainable temperature of 20mK. This work presents a novel system for studying geometric frustration.
| Original language | English |
|---|---|
| Article number | 057201 |
| Journal | Physical Review Letters |
| Volume | 95 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - Jul 29 2005 |
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All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
Cite this
Coexistence of long-range order and spin fluctuation in geometrically frustrated clinoatacamite Cu2Cl(OH)3. / Zheng, X. G.; Kubozono, H.; Nishiyama, K.; Higemoto, W.; Kawae, Tatsuya; Koda, A.; Xu, C. N.
In: Physical Review Letters, Vol. 95, No. 5, 057201, 29.07.2005.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Coexistence of long-range order and spin fluctuation in geometrically frustrated clinoatacamite Cu2Cl(OH)3
AU - Zheng, X. G.
AU - Kubozono, H.
AU - Nishiyama, K.
AU - Higemoto, W.
AU - Kawae, Tatsuya
AU - Koda, A.
AU - Xu, C. N.
PY - 2005/7/29
Y1 - 2005/7/29
N2 - Muon spin rotation experiments are carried out on clinoatacamite, Cu2Cl(OH)3, which is a new geometrically frustrated system featuring a three-dimensional network of corner-sharing tetrahedral 3d Cu2+ spins. A long-range antiferromagnetic order occurs below 18.1 K with a surprisingly small entropy release of about 0.05Rln2/Cu. Below 6.5K, the static long-range order transforms abruptly into a metastable state with nearly complete depolarization of muon spins which suggests strong fluctuation. The system then enters a state in which partial long-range order and spin fluctuation coexist down to the lowest experimentally attainable temperature of 20mK. This work presents a novel system for studying geometric frustration.
AB - Muon spin rotation experiments are carried out on clinoatacamite, Cu2Cl(OH)3, which is a new geometrically frustrated system featuring a three-dimensional network of corner-sharing tetrahedral 3d Cu2+ spins. A long-range antiferromagnetic order occurs below 18.1 K with a surprisingly small entropy release of about 0.05Rln2/Cu. Below 6.5K, the static long-range order transforms abruptly into a metastable state with nearly complete depolarization of muon spins which suggests strong fluctuation. The system then enters a state in which partial long-range order and spin fluctuation coexist down to the lowest experimentally attainable temperature of 20mK. This work presents a novel system for studying geometric frustration.
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U2 - 10.1103/PhysRevLett.95.057201
DO - 10.1103/PhysRevLett.95.057201
M3 - Article
AN - SCOPUS:27144509094
VL - 95
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 5
M1 - 057201
ER -