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Decoupling of Lattice and Orbital Degrees of Freedom in an Iron-Pnictide Superconductor
Christian E. Matt, O. Ivashko, M. Horio +16
The interplay of structural and electronic phases in iron-based superconductors is a central theme in the search for the superconducting pairing mechanism. While electronic nematic…
Spatially Inhomogeneous Competition between Superconductivity and the Charge Density Wave in YBaCuO
J. Choi, O. Ivashko, E. Blackburn +13
The charge density wave in the high-temperature superconductor YBaCuO (YBCO) is now known to have two different ordering tendencies differentiated by their -axis…
Charge-Stripe Order and Superconductivity in
O. Ivashko, L. Yang, D. Destraz +14
A combined resistivity and hard x-ray diffraction study of superconductivity and charge ordering in , as a function of Pt substitution and externally app…
Synchrotron x-ray scattering study of charge-density-wave order in HgBaCuO
W. Tabis, B. Yu, I. Bialo +18
We present a detailed synchrotron x-ray scattering study of the charge-density-wave (CDW) order in simple tetragonal HgBaCuO (Hg1201). Resonant soft x-ray scattering me…
Magnetic field controlled charge density wave coupling in underdoped YBaCuO
J. Chang, E. Blackburn, O. Ivashko +10
The application of large magnetic fields () to layered cuprates suppresses their high temperature superconducting behaviour and reveals competing ground states. In t…
The nature of the charge density waves in under-doped YBaCuO revealed by X-ray measurements of the ionic displacements
E. M. Forgan, E. Blackburn, A. T. Holmes +11
All underdoped high-temperature cuprate superconductors appear to exhibit charge density wave (CDW) order, but both the underlying symmetry breaking and the origin of the CDW remai…
Competing charge, spin, and superconducting orders in underdoped YBa2Cu3Oy
M. Huecker, N. B. Christensen, A. T. Holmes +9
To explore the doping dependence of the recently discovered charge density wave (CDW) order in YBa2Cu3Oy, we present a bulk-sensitive high-energy x-ray study for several oxygen con…
Bulk charge stripe order competing with superconductivity in La2-xSrxCuO4 (x=0.12)
N. B. Christensen, J. Chang, J. Larsen +9
We present a volume-sensitive high-energy x-ray diffraction study of the underdoped cuprate high temperature superconductor La2-xSrxCuO4 (x = 0.12, Tc=27 K) in applied magnetic fie…
Enhanced charge stripe order of superconducting La(2-x)Ba(x)CuO(4) in a magnetic field
M. Huecker, M. v. Zimmermann, Z. J. Xu +3
The effect of a magnetic field on the charge stripe order in La(2-x)Ba(x)CuO(4) has been studied by means of high energy (100 keV) x-ray diffraction for charge carrier concentratio…
X-ray diffraction observation of charge density wave order at zero magnetic field in ortho-II YBaCuO
E. Blackburn, J. Chang, M. Hucker +10
X-ray diffraction measurements show that the high-temperature superconductor YBaCuO, with ortho-II oxygen order, has charge density wave order (CDW) in the absence…
Direct observation of competition between superconductivity and charge density wave order in YBa2Cu3Oy
J. Chang, E. Blackburn, A. T. Holmes +10
Superconductivity often emerges in the proximity of, or in competition with, symmetry breaking ground states such as antiferromagnetism or charge density waves (CDW)1-5. A number o…
Uniaxial linear resistivity of superconducting La(1.905)Ba(0.095)CuO(4) induced by an external magnetic field
Jinsheng Wen, Qing Jie, Qiang Li +9
We present an experimental study of the anisotropic resistivity of superconducting La(2-x)Ba(x)CuO(4) with x=0.095 and transition temperature Tc=32 K. In a magnetic field perpendic…
Spontaneous symmetry breaking by charge stripes in the high-pressure phase of superconducting La(1.875)Ba(0.125)CuO(4)
M. Huecker, M. v. Zimmermann, M. Debessai +3
In those cases where charge stripe order has been observed in cuprates, the crystal structure is such that the average rotational symmetry of the CuO2 planes is reduced from four-f…
Evidence for unusual superconducting correlations coexisting with stripe order in La(1.875)Ba(0.125)CuO(4)
J. M. Tranquada, G. D. Gu, M. Huecker +10
We present new x-ray and neutron scattering measurements of stripe order in La(1.875)Ba(0.125)CuO(4), along with low-field susceptibility, thermal conductivity, and specific heat d…
Phonon-induced quadrupolar ordering of the magnetic superconductor TmNiBC
N. H. Andersen, J. Jensen, T. B. S. Jensen +6
We present synchrotron x-ray diffraction studies revealing that the lattice of thulium borocarbide is distorted below T_Q = 13.5 K at zero field. T_Q increases and the amplitude of…
Oxygen superstructures throughout the phase diagram of
J. Strempfer, I. Zegkinoglou, U. Ruett +5
Short-range lattice superstructures have been studied with high-energy x-ray diffuse scattering in underdoped, optimally doped, and overdoped . A new f…
Effect of a magnetic field on the spin- and charge-density wave order in La1.45Nd0.4Sr0.15CuO4
S. Wakimoto, R. J. Birgeneau, Y. Fujimaki +9
The spin-density wave (SDW) and charge-density wave (CDW) order in superconducting La1.45Nd0.4Sr0.15CuO4 were studied under an applied magnetic field using neutron and X-ray diffra…
Oxygen Ordering Superstructures and Structural Phase Diagram of YBa_2Cu_3O_{6+x} Studied by Hard X-ray Diffraction
M. v. Zimmermann, T. Frello, N. H. Andersen +10
High energy x-ray diffraction is used to investigate the bulk oxygen ordering properties of YBa_2Cu_3O_{6+x}. Superstructures of Cu-O chains aligned along the b axis and ordered wi…