Cu-O network-dependent core-hole screening in low-dimensional cuprate systems: A high-resolution x-ray photoemission study

Böske, T.; Maiti, Kalobaran; Knauff, O.; Ruck, K.; Golden, M. S.; Krabbes, G.; Fink, J.; Osafune, Tetsuaki; Motoyama, N.; Eisaki, H.; Uchida, Satoshi

doi:10.1103/physrevb.57.138

Cited by 64 publications

(59 citation statements)

References 22 publications

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“…In recent years several experimental systems have been synthesized which realize very closely quasi one-dimensional isotropic Heisenberg chains [7,8]. In experimental studies the two-spinon continuum characteristic for the one-dimensional geometry has been verified in the dynamical structure factor, see for instance [9].…”

Section: Introductionmentioning

confidence: 99%

The spin-1/2 Heisenberg chain: thermodynamics, quantum criticality and spin-Peierls exponents

1998

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We present numerical and analytical results for the thermodynamical properties of the spin-1/2 Heisenberg chain at arbitrary external magnetic field. Special emphasis is placed on logarithmic corrections in the susceptibility and specific heat at very low temperatures (T /J = 10 −24 ) and small fields. A longstanding controversy about the specific heat is resolved. At zero temperature the spin-Peierls exponent is calculated in dependence on the external magnetic field. This describes the energy response of the system to commensurate and incommensurate modulations of the lattice. The exponent for the spin gap in the incommensurate phase is given.

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Section: Introductionmentioning

confidence: 99%

The spin-1/2 Heisenberg chain: thermodynamics, quantum criticality and spin-Peierls exponents

1998

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“…The ''dimensionality'' of the copper-oxygen network here is defined in terms of the network formed by joining the paths with a strong superexchange interaction. 12,13 If the Cu-O plaquettes are connected by their edges, as in Li 2 CuO 2 , the Cu-O-Cu interaction is via an angle of 90°and is thus weak, giving what can be called a ''zero-dimensional'' network. If the CuO 4 plaquettes are connected via their corners to form a chain, as is the case in Sr 2 CuO 3 , the Cu-O-Cu angle is 180°͑Ref.…”

Section: Introductionmentioning

confidence: 99%

Core-hole screening response in two-dimensional cuprates: A high-resolution x-ray photoemission study

et al. 2002

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“…A signature characteristic of apical oxygen, i.e., the screening feature marked by C in Figure 12, is observed in the Cu 2p core levels [62,63]. In the Cu 2p core-level spectra shown in Figure 12, the relative contribution of the feature C increases when the film is grown under stronger oxidizing conditions.…”

Section: -P7mentioning

confidence: 87%

Photoelectron spectroscopy of transition metal oxide interfaces

Zegenhagen

2015

Eur. Phys. J. Appl. Phys.

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Abstract. In the present paper we review applications of the photoelectron spectroscopy (PES) technique to the investigation of transition metal oxide (TMO) interfaces. We summarize very briefly some of the principle, specific characteristics of TMOs. Because of the buried nature of the interfaces, the photoelectrons must penetrate certain thicknesses of material, which is easier with higher kinetic energies in the keV range. Thus, we also briefly summarize some of the hallmarks of hard X-ray photoelectron spectroscopy (HAXPES), before presenting four explicit samples of the analysis of TMO interfaces: The LaAlO 3/SrTiO3(0 0 1) interface, which had attracted attention because of the discovery of a sheet of high mobility electrons below the thin layer of LaAlO3; superlattices of the two insulators CaCuO2 and SrTiO3, which can be prepared to become superconducting at about 40 K; epitaxial films of the 90 K superconductor GdBa2Cu3O 7−δ on NdGaO3; and finally the analysis of the nucleation of the 90 K superconductor YBa2Cu3O 7−δ on SrTiO3(0 0 1). The latter two cases of the investigation of the superconducting films are examples of photoelectron spectroscopy by X-ray standing wave (XSW) excitation. Because of this, the bare essential features of the XSW technique are also briefly reviewed.

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Cu-O network-dependent core-hole screening in low-dimensional cuprate systems: A high-resolution x-ray photoemission study

Cited by 64 publications

References 22 publications

The spin-1/2 Heisenberg chain: thermodynamics, quantum criticality and spin-Peierls exponents

The spin-1/2 Heisenberg chain: thermodynamics, quantum criticality and spin-Peierls exponents

Core-hole screening response in two-dimensional cuprates: A high-resolution x-ray photoemission study

Photoelectron spectroscopy of transition metal oxide interfaces

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