Unconventional magnetic transitions in the mineral clinoatacamite Cu 2 Cl(OH) 3

X. G. Zheng, Tatsuya Kawae, Y. Kashitani, C. S. Li, N. Tateiwa, K. Takeda, H. Yamada, C. N. Xu, Y. Ren

Research output: Contribution to journalArticle

90 Citations (Scopus)

Abstract

Unconventional magnetic properties are found for a quantum spin system of mineral clinoatacamite, Cu 2 Cl(OH) 3 . Clinoatacamite is found to undergo an antiferromagnetic transition at 18.1 K with a small entropy fall (0.05R ln 2). At temperatures below 6.4 K, it transits into a disordered spin-glass-like state but with large specific heat anomalies. The entire entropy fall for the spin system is about 0.31R ln 2, which is smaller than those for dipolar spin ice (0.67R ln 2) and for ice I h (0.71R ln 2). Geometric frustration for the quantum Cu 2+ spins is suggested based on its crystal structure, magnetization, and specific heat studies.

Original languageEnglish
Article number052409
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume71
Issue number5
DOIs
Publication statusPublished - Feb 1 2005

Fingerprint

Ice
Specific heat
Minerals
Entropy
minerals
Spin glass
Magnetization
Magnetic properties
ice
Crystal structure
specific heat
entropy
heat
frustration
transit
spin glass
anomalies
magnetic properties
Temperature
magnetization

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Unconventional magnetic transitions in the mineral clinoatacamite Cu 2 Cl(OH) 3 . / Zheng, X. G.; Kawae, Tatsuya; Kashitani, Y.; Li, C. S.; Tateiwa, N.; Takeda, K.; Yamada, H.; Xu, C. N.; Ren, Y.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 71, No. 5, 052409, 01.02.2005.

Research output: Contribution to journalArticle

Zheng, X. G. ; Kawae, Tatsuya ; Kashitani, Y. ; Li, C. S. ; Tateiwa, N. ; Takeda, K. ; Yamada, H. ; Xu, C. N. ; Ren, Y. / Unconventional magnetic transitions in the mineral clinoatacamite Cu 2 Cl(OH) 3 In: Physical Review B - Condensed Matter and Materials Physics. 2005 ; Vol. 71, No. 5.
@article{a7d5803557274aa2bfdebee0f7df87c1,
title = "Unconventional magnetic transitions in the mineral clinoatacamite Cu 2 Cl(OH) 3",
abstract = "Unconventional magnetic properties are found for a quantum spin system of mineral clinoatacamite, Cu 2 Cl(OH) 3 . Clinoatacamite is found to undergo an antiferromagnetic transition at 18.1 K with a small entropy fall (0.05R ln 2). At temperatures below 6.4 K, it transits into a disordered spin-glass-like state but with large specific heat anomalies. The entire entropy fall for the spin system is about 0.31R ln 2, which is smaller than those for dipolar spin ice (0.67R ln 2) and for ice I h (0.71R ln 2). Geometric frustration for the quantum Cu 2+ spins is suggested based on its crystal structure, magnetization, and specific heat studies.",
author = "Zheng, {X. G.} and Tatsuya Kawae and Y. Kashitani and Li, {C. S.} and N. Tateiwa and K. Takeda and H. Yamada and Xu, {C. N.} and Y. Ren",
year = "2005",
month = "2",
day = "1",
doi = "10.1103/PhysRevB.71.052409",
language = "English",
volume = "71",
journal = "Physical Review B - Condensed Matter and Materials Physics",
issn = "1098-0121",
publisher = "American Physical Society",
number = "5",

}

TY - JOUR

T1 - Unconventional magnetic transitions in the mineral clinoatacamite Cu 2 Cl(OH) 3

AU - Zheng, X. G.

AU - Kawae, Tatsuya

AU - Kashitani, Y.

AU - Li, C. S.

AU - Tateiwa, N.

AU - Takeda, K.

AU - Yamada, H.

AU - Xu, C. N.

AU - Ren, Y.

PY - 2005/2/1

Y1 - 2005/2/1

N2 - Unconventional magnetic properties are found for a quantum spin system of mineral clinoatacamite, Cu 2 Cl(OH) 3 . Clinoatacamite is found to undergo an antiferromagnetic transition at 18.1 K with a small entropy fall (0.05R ln 2). At temperatures below 6.4 K, it transits into a disordered spin-glass-like state but with large specific heat anomalies. The entire entropy fall for the spin system is about 0.31R ln 2, which is smaller than those for dipolar spin ice (0.67R ln 2) and for ice I h (0.71R ln 2). Geometric frustration for the quantum Cu 2+ spins is suggested based on its crystal structure, magnetization, and specific heat studies.

AB - Unconventional magnetic properties are found for a quantum spin system of mineral clinoatacamite, Cu 2 Cl(OH) 3 . Clinoatacamite is found to undergo an antiferromagnetic transition at 18.1 K with a small entropy fall (0.05R ln 2). At temperatures below 6.4 K, it transits into a disordered spin-glass-like state but with large specific heat anomalies. The entire entropy fall for the spin system is about 0.31R ln 2, which is smaller than those for dipolar spin ice (0.67R ln 2) and for ice I h (0.71R ln 2). Geometric frustration for the quantum Cu 2+ spins is suggested based on its crystal structure, magnetization, and specific heat studies.

UR - http://www.scopus.com/inward/record.url?scp=15744390749&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=15744390749&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.71.052409

DO - 10.1103/PhysRevB.71.052409

M3 - Article

AN - SCOPUS:15744390749

VL - 71

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

SN - 1098-0121

IS - 5

M1 - 052409

ER -