Abrupt but continuous antiferromagnetic transition in nearly stoichiometric La2CuO4+

D. E. MacLaughlin; J. P. Vithayathil; H. B. Brom; J. C.J.M. De Rooy; P. C. Hammel; P. C. Canfield; A. P. Reyes; Z. Fisk; J. D. Thompson; S. W. Cheong

doi:10.1103/PhysRevLett.72.760

Abrupt but continuous antiferromagnetic transition in nearly stoichiometric La2CuO4+

D. E. MacLaughlin, J. P. Vithayathil, H. B. Brom, J. C.J.M. De Rooy, P. C. Hammel, P. C. Canfield, A. P. Reyes, Z. Fisk, J. D. Thompson, S. W. Cheong

Research output: Contribution to journal › Article › peer-review

37 Scopus citations

Abstract

Zero-field La139 nuclear quadrupole resonance (NQR) has been used to characterize the antiferromagnetic transition in nearly stoichiometric single crystals of La2CuO4+ (Néel temperatures TN between 275 and 318 K). The onset of the NQR Zeeman splitting at TN is abrupt but continuous, indicative of a second-order phase transition with either a crossover in critical behavior just below TN or a very small critical exponent 0.1. The absence of any anomaly at TN in the La139 electric field gradient indicates no accompanying structural distortion.

Original language	English (US)
Pages (from-to)	760-763
Number of pages	4
Journal	Physical review letters
Volume	72
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevLett.72.760
State	Published - 1994
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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10.1103/PhysRevLett.72.760

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@article{ca552d6c77d94d3ea29acd42ac6fc8f5,

title = "Abrupt but continuous antiferromagnetic transition in nearly stoichiometric La2CuO4+",

abstract = "Zero-field La139 nuclear quadrupole resonance (NQR) has been used to characterize the antiferromagnetic transition in nearly stoichiometric single crystals of La2CuO4+ (N{\'e}el temperatures TN between 275 and 318 K). The onset of the NQR Zeeman splitting at TN is abrupt but continuous, indicative of a second-order phase transition with either a crossover in critical behavior just below TN or a very small critical exponent 0.1. The absence of any anomaly at TN in the La139 electric field gradient indicates no accompanying structural distortion.",

author = "MacLaughlin, {D. E.} and Vithayathil, {J. P.} and Brom, {H. B.} and {De Rooy}, {J. C.J.M.} and Hammel, {P. C.} and Canfield, {P. C.} and Reyes, {A. P.} and Z. Fisk and Thompson, {J. D.} and Cheong, {S. W.}",

year = "1994",

doi = "10.1103/PhysRevLett.72.760",

language = "English (US)",

volume = "72",

pages = "760--763",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "5",

}

TY - JOUR

T1 - Abrupt but continuous antiferromagnetic transition in nearly stoichiometric La2CuO4+

AU - MacLaughlin, D. E.

AU - Vithayathil, J. P.

AU - Brom, H. B.

AU - De Rooy, J. C.J.M.

AU - Hammel, P. C.

AU - Canfield, P. C.

AU - Reyes, A. P.

AU - Fisk, Z.

AU - Thompson, J. D.

AU - Cheong, S. W.

PY - 1994

Y1 - 1994

N2 - Zero-field La139 nuclear quadrupole resonance (NQR) has been used to characterize the antiferromagnetic transition in nearly stoichiometric single crystals of La2CuO4+ (Néel temperatures TN between 275 and 318 K). The onset of the NQR Zeeman splitting at TN is abrupt but continuous, indicative of a second-order phase transition with either a crossover in critical behavior just below TN or a very small critical exponent 0.1. The absence of any anomaly at TN in the La139 electric field gradient indicates no accompanying structural distortion.

AB - Zero-field La139 nuclear quadrupole resonance (NQR) has been used to characterize the antiferromagnetic transition in nearly stoichiometric single crystals of La2CuO4+ (Néel temperatures TN between 275 and 318 K). The onset of the NQR Zeeman splitting at TN is abrupt but continuous, indicative of a second-order phase transition with either a crossover in critical behavior just below TN or a very small critical exponent 0.1. The absence of any anomaly at TN in the La139 electric field gradient indicates no accompanying structural distortion.

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U2 - 10.1103/PhysRevLett.72.760

DO - 10.1103/PhysRevLett.72.760

M3 - Article

AN - SCOPUS:4243377307

SN - 0031-9007

VL - 72

SP - 760

EP - 763

JO - Physical Review Letters

JF - Physical Review Letters

IS - 5

ER -

Abrupt but continuous antiferromagnetic transition in nearly stoichiometric La2CuO4+

Abstract

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