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Dąbrowski, B.; Wang, Z.; Rogacki, K.; Jorgensen, J. D.; Hitterman, R. L.; Wagner, J. L.; Hunter, Brett A.; Radaelli, P. G.; Hinks, D.G.

doi:10.1103/physrevlett.76.1348

Cited by 93 publications

(36 citation statements)

References 14 publications

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“…6, the T c (p) diagram for iron has a specific bell-shaped curve. Interestingly, this phase diagram for iron [7] shows a striking resemblance to the critical temperature versus doping or carrier concentration of superconductors with antiferromagnetic parent compounds -La 2-x Sr x Cu 2 O 4 [58], or UGe 2 [59], as illustrated in Fig. 7.…”

Section: Superconductivity and Magnetismmentioning

confidence: 99%

“…Perhaps the explanation lies in theoretical model of magnetism mediated superconductivity [59]. The validity of this model was questioned until recently, when [59], [58] and [7] for UGe2, La-Sr-Cu-O, and Fe, respectively. superconductivity was observed in UGe 2, on the border of ferromagnetism within the same electrons that produce band magnetism [59].…”

Section: Superconductivity and Magnetismmentioning

confidence: 99%

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Assembling the puzzle of superconducting elements: a review

Buzea

Robbie

2004

Supercond. Sci. Technol.

151

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Superconductivity in the simple elements is of both technological relevance and fundamental scientific interest in the investigation of superconductivity phenomena. Recent advances in the instrumentation of physics under pressure have enabled the observation of superconductivity in many elements not previously known to superconduct, and at steadily increasing temperatures. This article offers a review of the state of the art in the superconductivity of elements, highlighting underlying correlations and general trends.

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Section: Superconductivity and Magnetismmentioning

confidence: 99%

Section: Superconductivity and Magnetismmentioning

confidence: 99%

Assembling the puzzle of superconducting elements: a review

Buzea

Robbie

2004

Supercond. Sci. Technol.

151

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“…Dabrowski et al found the strong correlation between T c and the tilt angle of the CuO 6 octahedron or the amplitude of the corrugated lattice potential of CuO 2 planes [24]. Furthermore, in both thin films and pressure-applied 2-1-4 compounds with flat CuO 2 planes the disappearance of the 1/8-anomaly and the substantial increment of T c are reported [25][26][27][28].…”

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confidence: 97%

Competition between Charge- and Spin-Density-Wave Order and Superconductivity inLa1.875Ba0.125−x
Fujita
¹
,
Goka
²
,
Yamada
³

et al. 2002
Phys. Rev. Lett.
167
4
108
2
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We have performed a series of elastic neutron scattering measurements on 1/8-hole doped La1.875Ba0.125−xSrxCuO4 single crystals with x = 0.05, 0.06, 0.075 and 0.085. Both charge-densitywave (CDW) and spin-density-wave (SDW) orders are found to develop simultaneously below the structural transition temperature between the low-temperature orthorhombic (LTO) and lowtemperature tetragonal (LTT) or low-temperature less-orthorhombic (LTLO) phases. In the ground state the CDW order is observed only in the LTT/LTLO phase and drastically degrades towards the LTO boundary. The x-dependence of Tc strongly suggests a direct effect of the CDW order on the suppression of superconductivity. Results are discussed in comparison with those from the La1.6−xNd0.4SrxCuO4 system within the framework of the stripe model. PACS numbers: 74.72. Dn, 71.45.Lr, 75.30.Fv, 74.25.Dw The interplay between magnetism and superconductivity is a central issue in high-T c superconductivity [1]. Neutron scattering measurements on the superconducting La 2−x Sr x CuO 4 (LSCO) system have shown dynamical incommensurate (IC) magnetic correlation [2][3][4]. The linear doping dependence of incommensurability with the superconducting transition temperature (T c ) in the under-doped region suggests a relationship between magnetic correlation and superconductivity [5].On the other hand, it is well known that superconductivity in the La 2−x M x CuO 4 (M=Ba, Sr) system is anomalously suppressed at the specific hole concentration of x ∼1/8. For the La 2−x Ba x CuO 4 (LBCO) system, this 1/8-anomaly is accompanied by an occurrence of the lowtemperature tetragonal (LTT) phase with P4 2 /ncm symmetry [6][7][8]. Superconductivity in the low-temperature orthorhombic (LTO) phase of LSCO with Bmab symmetry is weakly suppressed in comparison with the LBCO system [9,10]. Maeno et al. initiated systematic studies on La 1.875 Ba 0.125−x Sr x CuO 4 (LBSCO) using polycrystalline samples to clarify the relation between T c and crystal structure [11]. We comprehensively studied the same system using single crystals and revealed a drastic change in x-dependence of T c [12,13]. In the present study we demonstrate a close relation between T c and crystal structure as shown in Fig.4.Recently, the IC spin-density-wave (SDW) and the charge-density-wave (CDW) orders were discovered in La 1.6−x Nd 0.4 Sr x CuO 4 (LNSCO) with x ∼ 1/8. These provide important clues for understanding the mechanism of the 1/8-anomaly based on the stripe model [14,15]. In the framework of the stripe model it is recognized that the orders are a manifestation of dynamical spin/charge correlation and that stabilization of the orders competitively induces instability of superconductivity [16]. In the LTT phase stripe-shaped orders parallel or perpendicular to Cu-O bonding are favorably stabilized by the corrugated pattern of the in-plane lattice potential. Hence, T c is suppressed to a greater extent in the LTT phase than in the LTO phase. Whether visible signs, such as the anomalous suppression of T c , app...

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“…Such analyses have been extended within the LSCO system to cover a variety of substituents, 38 and also towards the use of dynamical probes to investigate the relation of structure and spin correlations (see for example Ref. 39).…”

Section: Introductionmentioning

confidence: 99%

Lattice anisotropy as the microscopic origin of static stripes in cuprates

Normand

Kampf

2001

Phys. Rev. B

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Structural distortions in cuprate materials offer a microscopic origin for anisotropies in electron transport in the basal plane. Using a real-space Hartree-Fock approach, we consider the ground states of the anisotropic Hubbard (tx = ty) and t-J (tx = ty, Jx = Jy) models. Symmetrical but inhomogeneous ("polaronic") charge structures in the isotropic models are altered even by rather small anisotropies to one-dimensional, stripe-like features. We find two distinct types of stripe, namely uniformly filled, antiphase domain walls and non-uniform, half-filled, in-phase ones. We characterize their properties, energies and dependence on the model parameters, including filling and anisotropy in t (and J). We discuss the connections among these results, other theoretical studies and experimental observation.

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Dependence of Superconducting Transition Temperature on Doping and Structural Distortion of the CuO2Planes inLa2−

Cited by 93 publications

References 14 publications

Assembling the puzzle of superconducting elements: a review

Assembling the puzzle of superconducting elements: a review

Competition between Charge- and Spin-Density-Wave Order and Superconductivity inLa1.875Ba0.125−x
Fujita
¹
,
Goka
²
,
Yamada
³

et al. 2002
Phys. Rev. Lett.
167
4
108
2
View full text Add to dashboard Cite

Lattice anisotropy as the microscopic origin of static stripes in cuprates

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Dependence of Superconducting Transition Temperature on Doping and Structural Distortion of the CuO2Planes inLa2−

Cited by 93 publications

References 14 publications

Assembling the puzzle of superconducting elements: a review

Assembling the puzzle of superconducting elements: a review

Competition between Charge- and Spin-Density-Wave Order and Superconductivity inLa1.875Ba0.125−xFujita1, Goka2, Yamada3 et al. 2002Phys. Rev. Lett.16741082View full textAdd to dashboardCite

Lattice anisotropy as the microscopic origin of static stripes in cuprates

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Competition between Charge- and Spin-Density-Wave Order and Superconductivity inLa1.875Ba0.125−x
Fujita
¹
,
Goka
²
,
Yamada
³

et al. 2002
Phys. Rev. Lett.
167
4
108
2
View full text Add to dashboard Cite