Incommensurate geometry of the elastic magnetic peaks in superconducting<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">La</mml:mi></mml:mrow><mml:mrow><mml:mn>1.88</mml:mn></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Sr</mml:mi></mml:mrow><mml:mrow><mml:mn>0.12</mml:mn></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">CuO</mml:mi></mm

Kimura, Hiroyuki; Matsushita, Hiroki; Hirota, K.; Endoh, Y.; Yamada, Kōsaku; Shirane, G.; Lee, Y. S.; Kastner, M. A.; Birgeneau, R. J.

doi:10.1103/physrevb.61.14366

Cited by 59 publications

(61 citation statements)

References 11 publications

(15 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The shift of SDW peaks, or the Y shift, implies that the magnetic correlations have onedimensional anisotropy on the 2D CuO 2 plane. The Y shift was also confirmed in LSCO x = 0.12 [20]. The magnetic scattering in the SG phase of LSCO (0.02 ≤ x ≤ 0.05) was also revisited.…”

Section: Overview Of the Elastic Magnetic Peaks In Lscomentioning

confidence: 79%

“…These results mirrored the behaviors seen in samples in the SG region [3,4] Suzuki et al [18] have obtained evidence for incommensurate magnetic order at low temperature in LSCO with x = 0.12 by using a double-axis neutron diffractometer. Detailed elastic neutron-scattering measurements were carried out by Kimura et al [19,20]. They have found elastic incommensurate magnetic peaks indicating a spin-density wave (SDW) order with correlation length exceeding 200Å.…”

Section: Overview Of the Elastic Magnetic Peaks In Lscomentioning

confidence: 99%

See 1 more Smart Citation

Neutron scattering studies of Zn-doped La2−xSrxCuO4

Hirota

2001

Physica C: Superconductivity

Self Cite

View full text Add to dashboard Cite

This paper reviews studies of the spatial modulation of spin in La2−xSrxCuO4 (LSCO) through neutron-scattering measurements of the elastic magnetic peaks, with emphasis on Zn-doped LSCO. The elastic incommensurate magnetic peaks can be categorized in two classes with respect to the temperature dependence. Nd-doped LSCO, La2CuO4+y and LSCO with x ∼ 1/8 exhibit an ordinary power law behavior. On the other hand, Zn-doped LSCO and LSCO with x = 0.02 − 0.07 show an exponential temperature dependence, and the correlation lengths stay short. This discrepancy can be attributed to the difference in the mechanism of pinning spin fluctuations. The former systems have pinning centers which is coherent to the lattice. In the latter, however, pinning centers are randomly scattered in the CuO2 planes, thus incoherent. The incoherent pinning model is discussed with referring to recent µSR studies.

show abstract

Section: Overview Of the Elastic Magnetic Peaks In Lscomentioning

confidence: 79%

Section: Overview Of the Elastic Magnetic Peaks In Lscomentioning

confidence: 99%

Neutron scattering studies of Zn-doped La2−xSrxCuO4

Hirota

2001

Physica C: Superconductivity

Self Cite

View full text Add to dashboard Cite

show abstract

“…The resultant magnetic moments together with that for x = 0.12 reported by Kimura et al 22 are summarized in Fig. 1(b).…”

Section: Resultsmentioning

confidence: 94%

Hole concentration dependence of the magnetic moment in superconducting and insulatingLa2−xSrx<

et al. 2001

Self Cite

View full text Add to dashboard Cite

Recent neutron scattering measurements on the La2−xSrxCuO4 system have revealed a drastic change of the incommensurate static spin correlations from diagonal in the insulating region to parallel in the superconducting region. We report the doping dependence of the ordered magnetic moment for the hole concentration region 0.03 ≤ x ≤ 0.12, focusing on the relationship between the static magnetism and the superconductivity. The elastic magnetic crosssection decreases monotonically with increasing x for 0.03 ≤ x ≤ 0.07. We find that the ordered magnetic moment µ varies from ∼ 0.18 µB/Cu (x = 0.03) to ∼ 0.06 µB/Cu (x = 0.07). No significant anomaly is observed at the insulator-superconductor boundary (x ∼ 0.055). The elastic magnetic cross section is enhanced in the vicinity of x = 0.12 where resolution limited width peaks are observed in neutron scattering measurements and where the apparent magnetic and superconducting transitions coincide.74.72. Dn, 75.30.Fv, 75.50.Ee

show abstract

“…17,19,21,[32][33][34] In Fig. 1(a), we show a constant energy scan obtained with the spectrometer set to energy transferhω = 0 meV.…”

Section: Resultsmentioning

confidence: 99%

Glassy low-energy spin fluctuations and anisotropy gap in La1.88Sr0.12CuO4<

et al. 2013

View full text Add to dashboard Cite

We present high-resolution triple-axis neutron scattering studies of the high-temperature superconductor La 1.88 Sr 0.12 CuO 4 (T c = 27 K). The temperature dependence of the low-energy incommensurate magnetic fluctuations reveals distinctly glassy features. The glassiness is confirmed by the difference between the ordering temperature T N T c inferred from elastic neutron scattering and the freezing temperature T f 11 K obtained from muon spin rotation studies. The magnetic field independence of the observed excitation spectrum as well as the observation of a partial suppression of magnetic spectral weight below 0.75 meV for temperatures smaller than T f , indicate that the stripe frozen state is capable of supporting a spin anisotropy gap, of a magnitude similar to that observed in the spin and charge stripe-ordered ground state of La 1.875 Ba 0.125 CuO 4 . The difference between T N and T f implies that the significant enhancement in a magnetic field of nominally elastic incommensurate scattering is caused by strictly inelastic scattering-at least in the temperature range between T f and T c -which is not resolved in the present experiment. Combining the results obtained from our study of La 1.88 Sr 0.12 CuO 4 with a critical reappraisal of published neutron scattering work on samples with chemical composition close to p = 0.12, where local probes indicate a sharp maximum in T f (p), we arrive at the view that the low-energy fluctuations are strongly dependent on composition in this regime, with anisotropy gaps dominating only sufficiently close to p = 0.12 and superconducting spin gaps dominating elsewhere.

show abstract

Incommensurate geometry of the elastic magnetic peaks in superconductingLa1.88Sr0.12CuO

Cited by 59 publications

References 11 publications

Neutron scattering studies of Zn-doped La2−xSrxCuO4

Neutron scattering studies of Zn-doped La2−xSrxCuO4

Hole concentration dependence of the magnetic moment in superconducting and insulatingLa2−xSrx<

Glassy low-energy spin fluctuations and anisotropy gap in La1.88Sr0.12CuO4<

Contact Info

Product

Resources

About