Antiferromagnet (Ln,Ca)CuO2.5 near the quantum critical point (Ln = Pr,Nd)

K. Kakuta; K. Ohishi; S. Furuya; W. Higemoto; R. Kadono; J. Akimitsu

doi:10.1016/S0921-4526(00)00352-5

Antiferromagnet (Ln,Ca)CuO_2.5 near the quantum critical point (Ln = Pr,Nd)

K. Kakuta, K. Ohishi, S. Furuya, W. Higemoto, R. Kadono, J. Akimitsu

Research output: Contribution to journal › Conference article › peer-review

1 Citation (Scopus)

Abstract

The Neel temperatures T_N of two-leg ladder compounds LnCuO_2.5 (Ln: Pr, Nd) kin to LaCuO_2.5 were determined by zero-field muon spin precession. It was found that T_N = 17 K in PrCuO_2.5 and 1.8 K in NdCuO_2.5, which are both considerably reduced from T_N = 125 K in LaCuO_2.5. No spin precession signal was observed in Nd_0.65Ca_0.35CuO_2.5. These results demonstrate that the spin-ladder system approaches the quantum critical point by substituting Pr or Nd for La, and that the Neel order of these compounds is completely destroyed upon Ca doping.

Original language	English
Pages (from-to)	168-171
Number of pages	4
Journal	Physica B: Condensed Matter
Volume	289-290
DOIs	https://doi.org/10.1016/S0921-4526(00)00352-5
Publication status	Published - Aug 2000
Externally published	Yes
Event	8th International Conference on Muon Spin Rotation, Relaxation and Resonance (muSR'99) - Les Diablerets, Switz Duration: Aug 30 1999 → Sept 3 1999

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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@article{982eedf3f1cb4c3ab147a063c0e15810,

title = "Antiferromagnet (Ln,Ca)CuO2.5 near the quantum critical point (Ln = Pr,Nd)",

abstract = "The Neel temperatures TN of two-leg ladder compounds LnCuO2.5 (Ln: Pr, Nd) kin to LaCuO2.5 were determined by zero-field muon spin precession. It was found that TN = 17 K in PrCuO2.5 and 1.8 K in NdCuO2.5, which are both considerably reduced from TN = 125 K in LaCuO2.5. No spin precession signal was observed in Nd0.65Ca0.35CuO2.5. These results demonstrate that the spin-ladder system approaches the quantum critical point by substituting Pr or Nd for La, and that the Neel order of these compounds is completely destroyed upon Ca doping.",

author = "K. Kakuta and K. Ohishi and S. Furuya and W. Higemoto and R. Kadono and J. Akimitsu",

note = "Funding Information: This work was partially supported by a Grant-in-Aid for Science Research from the Ministry of Education, Science and Culture, Japan and by a Grant from the CREST. We would like to thank staff of RIKEN-RAL Muon Facility for their technical support.; 8th International Conference on Muon Spin Rotation, Relaxation and Resonance (muSR'99) ; Conference date: 30-08-1999 Through 03-09-1999",

year = "2000",

month = aug,

doi = "10.1016/S0921-4526(00)00352-5",

language = "English",

volume = "289-290",

pages = "168--171",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier",

}

TY - JOUR

T1 - Antiferromagnet (Ln,Ca)CuO2.5 near the quantum critical point (Ln = Pr,Nd)

AU - Kakuta, K.

AU - Ohishi, K.

AU - Furuya, S.

AU - Higemoto, W.

AU - Kadono, R.

AU - Akimitsu, J.

N1 - Funding Information: This work was partially supported by a Grant-in-Aid for Science Research from the Ministry of Education, Science and Culture, Japan and by a Grant from the CREST. We would like to thank staff of RIKEN-RAL Muon Facility for their technical support.

PY - 2000/8

Y1 - 2000/8

N2 - The Neel temperatures TN of two-leg ladder compounds LnCuO2.5 (Ln: Pr, Nd) kin to LaCuO2.5 were determined by zero-field muon spin precession. It was found that TN = 17 K in PrCuO2.5 and 1.8 K in NdCuO2.5, which are both considerably reduced from TN = 125 K in LaCuO2.5. No spin precession signal was observed in Nd0.65Ca0.35CuO2.5. These results demonstrate that the spin-ladder system approaches the quantum critical point by substituting Pr or Nd for La, and that the Neel order of these compounds is completely destroyed upon Ca doping.

AB - The Neel temperatures TN of two-leg ladder compounds LnCuO2.5 (Ln: Pr, Nd) kin to LaCuO2.5 were determined by zero-field muon spin precession. It was found that TN = 17 K in PrCuO2.5 and 1.8 K in NdCuO2.5, which are both considerably reduced from TN = 125 K in LaCuO2.5. No spin precession signal was observed in Nd0.65Ca0.35CuO2.5. These results demonstrate that the spin-ladder system approaches the quantum critical point by substituting Pr or Nd for La, and that the Neel order of these compounds is completely destroyed upon Ca doping.

UR - http://www.scopus.com/inward/record.url?scp=0033700697&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0033700697&partnerID=8YFLogxK

U2 - 10.1016/S0921-4526(00)00352-5

DO - 10.1016/S0921-4526(00)00352-5

M3 - Conference article

AN - SCOPUS:0033700697

SN - 0921-4526

VL - 289-290

SP - 168

EP - 171

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

T2 - 8th International Conference on Muon Spin Rotation, Relaxation and Resonance (muSR'99)

Y2 - 30 August 1999 through 3 September 1999

ER -

Antiferromagnet (Ln,Ca)CuO_2.5 near the quantum critical point (Ln = Pr,Nd)

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