ESR study of (Sr, La, Ca)14Cu24O41

V. Kataev; K. Y. Choi; M. Grüninger; U. Ammerahl; B. Büchner; A. Freimuth; A. Revcolevschi

doi:10.1016/S0921-4526(01)01288-1

ESR study of (Sr, La, Ca)₁₄Cu₂₄O₄₁

V. Kataev
, K. Y. Choi
, M. Grüninger
, U. Ammerahl
, B. Büchner
, A. Freimuth
, A. Revcolevschi

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

1 Scopus citations

Abstract

We report an electron spin resonance (ESR) study of single crystals of the spin-chain spin-ladder compound (Sr, La, Ca)₁₄Cu₂₄O₄₁. The data suggest that in intrinsically hole doped Sr_14-xCa_xCu₂₄O₄₁, only a small amount of holes is transferred from the chains to the ladders with increasing x, resulting in a crossover from spin dimerized to uniform spin chains. In the samples of La_14-xCa_xCu₂₄O₄₁ with reduced hole content a very broad signal is observed in the paramagnetic state, indicative of a surprisingly strong anisotropy of the nearest neighbor exchange in the chains.

Original language	English
Pages (from-to)	614-616
Number of pages	3
Journal	Physica B: Condensed Matter
Volume	312-313
DOIs	https://doi.org/10.1016/S0921-4526(01)01288-1
State	Published - Mar 2002
Externally published	Yes
Event	International Conference on Strongly Correlated Electrons - Ann Arbor, MI, United States Duration: 6 Aug 2002 → 6 Aug 2002

Keywords

Magnetic resonance
Spin chains and ladders

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10.1016/S0921-4526(01)01288-1

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title = "ESR study of (Sr, La, Ca)14Cu24O41",

abstract = "We report an electron spin resonance (ESR) study of single crystals of the spin-chain spin-ladder compound (Sr, La, Ca)14Cu24O41. The data suggest that in intrinsically hole doped Sr14-xCaxCu24O41, only a small amount of holes is transferred from the chains to the ladders with increasing x, resulting in a crossover from spin dimerized to uniform spin chains. In the samples of La14-xCaxCu24O41 with reduced hole content a very broad signal is observed in the paramagnetic state, indicative of a surprisingly strong anisotropy of the nearest neighbor exchange in the chains.",

keywords = "Magnetic resonance, Spin chains and ladders",

author = "V. Kataev and Choi, \{K. Y.\} and M. Gr{\"u}ninger and U. Ammerahl and B. B{\"u}chner and A. Freimuth and A. Revcolevschi",

year = "2002",

month = mar,

doi = "10.1016/S0921-4526(01)01288-1",

language = "English",

volume = "312-313",

pages = "614--616",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier B.V.",

note = "International Conference on Strongly Correlated Electrons ; Conference date: 06-08-2002 Through 06-08-2002",

}

TY - JOUR

T1 - ESR study of (Sr, La, Ca)14Cu24O41

AU - Kataev, V.

AU - Choi, K. Y.

AU - Grüninger, M.

AU - Ammerahl, U.

AU - Büchner, B.

AU - Freimuth, A.

AU - Revcolevschi, A.

PY - 2002/3

Y1 - 2002/3

N2 - We report an electron spin resonance (ESR) study of single crystals of the spin-chain spin-ladder compound (Sr, La, Ca)14Cu24O41. The data suggest that in intrinsically hole doped Sr14-xCaxCu24O41, only a small amount of holes is transferred from the chains to the ladders with increasing x, resulting in a crossover from spin dimerized to uniform spin chains. In the samples of La14-xCaxCu24O41 with reduced hole content a very broad signal is observed in the paramagnetic state, indicative of a surprisingly strong anisotropy of the nearest neighbor exchange in the chains.

AB - We report an electron spin resonance (ESR) study of single crystals of the spin-chain spin-ladder compound (Sr, La, Ca)14Cu24O41. The data suggest that in intrinsically hole doped Sr14-xCaxCu24O41, only a small amount of holes is transferred from the chains to the ladders with increasing x, resulting in a crossover from spin dimerized to uniform spin chains. In the samples of La14-xCaxCu24O41 with reduced hole content a very broad signal is observed in the paramagnetic state, indicative of a surprisingly strong anisotropy of the nearest neighbor exchange in the chains.

KW - Magnetic resonance

KW - Spin chains and ladders

UR - https://www.scopus.com/pages/publications/0036503901

U2 - 10.1016/S0921-4526(01)01288-1

DO - 10.1016/S0921-4526(01)01288-1

M3 - Conference article

AN - SCOPUS:0036503901

SN - 0921-4526

VL - 312-313

SP - 614

EP - 616

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

T2 - International Conference on Strongly Correlated Electrons

Y2 - 6 August 2002 through 6 August 2002

ER -

ESR study of (Sr, La, Ca)₁₄Cu₂₄O₄₁

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Keywords

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