Search Results - (Author, Cooperation:G. A. Sawatzky)
-
1Latest Papers from Table of Contents or Articles in PressR. Comin ; R. Sutarto ; E. H. Neto ; L. Chauviere ; R. Liang ; W. N. Hardy ; D. A. Bonn ; F. He ; G. A. Sawatzky ; A. Damascelli
American Association for the Advancement of Science (AAAS)
Published 2016Staff ViewPublication Date: 2016-01-28Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsPublished by: -
2Latest Papers from Table of Contents or Articles in PressG. Ghiringhelli ; M. Le Tacon ; M. Minola ; S. Blanco-Canosa ; C. Mazzoli ; N. B. Brookes ; G. M. De Luca ; A. Frano ; D. G. Hawthorn ; F. He ; T. Loew ; M. Moretti Sala ; D. C. Peets ; M. Salluzzo ; E. Schierle ; R. Sutarto ; G. A. Sawatzky ; E. Weschke ; B. Keimer ; L. Braicovich
American Association for the Advancement of Science (AAAS)
Published 2012Staff ViewPublication Date: 2012-07-17Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsPublished by: -
3Latest Papers from Table of Contents or Articles in PressR. Comin ; A. Frano ; M. M. Yee ; Y. Yoshida ; H. Eisaki ; E. Schierle ; E. Weschke ; R. Sutarto ; F. He ; A. Soumyanarayanan ; Y. He ; M. Le Tacon ; I. S. Elfimov ; J. E. Hoffman ; G. A. Sawatzky ; B. Keimer ; A. Damascelli
American Association for the Advancement of Science (AAAS)
Published 2013Staff ViewPublication Date: 2013-12-21Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsPublished by: -
4Latest Papers from Table of Contents or Articles in PressD. van der Marel ; G. A. Sawatzky
American Association for the Advancement of Science (AAAS)
Published 2014Staff ViewPublication Date: 2014-07-12Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsPublished by: -
5Latest Papers from Table of Contents or Articles in PressE. H. da Silva Neto ; R. Comin ; F. He ; R. Sutarto ; Y. Jiang ; R. L. Greene ; G. A. Sawatzky ; A. Damascelli
American Association for the Advancement of Science (AAAS)
Published 2015Staff ViewPublication Date: 2015-01-17Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsPublished by: -
6Latest Papers from Table of Contents or Articles in PressR. Comin ; R. Sutarto ; E. H. da Silva Neto ; L. Chauviere ; R. Liang ; W. N. Hardy ; D. A. Bonn ; F. He ; G. A. Sawatzky ; A. Damascelli
American Association for the Advancement of Science (AAAS)
Published 2015Staff ViewPublication Date: 2015-03-21Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsPublished by: -
7Articles: DFG German National LicensesStaff View
ISSN: 1089-7623Source: AIP Digital ArchiveTopics: PhysicsElectrical Engineering, Measurement and Control TechnologyNotes: A small, single piezo XYZ translator has been developed. The device has been used as a scanner for a scanning tunneling microscope and has been tested successfully in air and in UHV. Its simple design results in a rigid and compact scanning unit which permits high scanning rates.Type of Medium: Electronic ResourceURL: -
8Articles: DFG German National LicensesAlders, D. ; Hibma, T. ; Sawatzky, G. A.
[S.l.] : American Institute of Physics (AIP)
Published 1997Staff ViewISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: We report on a study of grazing incidence absorption and reflection spectra of NiO in the region of the Ni 2p edge. The aim is to evaluate the distortion of the near edge spectrum by the critical angle behavior of individual components within the spectrum. This can be used to improve the separation of multiplets and enhance low spectral weight line shapes like charge transfer satellites. The measured spectra have been compared with calculations using an optical model. © 1997 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
9Articles: DFG German National LicensesGoedkoop, J. B. ; Fuggle, J. C. ; Thole, B. T. ; van der Laan, G. ; Sawatzky, G. A.
[S.l.] : American Institute of Physics (AIP)
Published 1988Staff ViewISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: We discuss recent developments in the magnetic x-ray dichroism of rare-earth materials. The application of this technique to the study of magnetic materials is discussed. Also, other work on magneto-optical effects in the x-ray range is reviewed.Type of Medium: Electronic ResourceURL: -
10Articles: DFG German National LicensesBlumberg, G. ; Rusydi, A. ; Gozar, A. ; Evans, P. G. ; Siegrist, T. ; Venema, L. ; Eisaki, H. ; Isaacs, E. D. ; Sawatzky, G. A. ; Abbamonte, P.
[s.l.] : Macmillian Magazines Ltd.
Published 2004Staff ViewISSN: 1476-4687Source: Nature Archives 1869 - 2009Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsNotes: [Auszug] Determining the nature of the electronic phases that compete with superconductivity in high-transition-temperature (high-Tc) superconductors is one of the deepest problems in condensed matter physics. One candidate is the ‘stripe’ phase, in which the charge carriers ...Type of Medium: Electronic ResourceURL: -
11Articles: DFG German National LicensesRen, Y. ; Palstra, T. T. M. ; Khomskii, D. I. ; Pellegrin, E. ; Nugroho, A. A. ; Menovsky, A. A. ; Sawatzky, G. A.
[s.l.] : Macmillan Magazines Ltd.
Published 1998Staff ViewISSN: 1476-4687Source: Nature Archives 1869 - 2009Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsNotes: [Auszug] The total energy of a magnet in a magnetic field is lowest when the magnetic moment is aligned parallel to the magnetic field. Once aligned, the magnetic moment can be reversed by applying a sufficiently large field in the opposite direction. These properties form the basis of most magnetic ...Type of Medium: Electronic ResourceURL: -
12Articles: DFG German National LicensesKoopmans, B. ; Janner, A. M. ; Wierenga, H. A. ; Rasing, Th. ; Sawatzky, G. A. ; van der Woude, F.
Springer
Published 1995Staff ViewISSN: 1432-0630Keywords: PACS: 42.65.Ky; 75.70.Cn; 78.66.Source: Springer Online Journal Archives 1860-2000Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision MechanicsPhysicsNotes: Abstract. We discuss the separation problem of bulk vs interface contributions in optical Second-Harmonic Generation (SHG). A new method is presented, which – in special cases – provides a full separation of all interface and bulk tensor components. The method is based on measurements in a thin-film geometry, and the relation between two bulk tensor components obtained from group-theoretical arguments. The separation problem in its strict sense is sh own to be absent in Magnetization-induced SHG (MSHG). Though, in practice, also in the MSHG case interface and bulk contributions can be closely resemblant. The approach is illustrated by second-harmonic experiments on C60 thin films. SHG in this system is found to be completely dominated by bulk processes.Type of Medium: Electronic ResourceURL: -
13Articles: DFG German National LicensesKoopmans, B. ; Janner, A. M. ; Wierenga, H. A. ; Rasing, Th. ; Sawatzky, G. A. ; Woude, F.
Springer
Published 1995Staff ViewISSN: 1432-0630Keywords: 42.65.Ky ; 75.70.Cn ; 78.66.-wSource: Springer Online Journal Archives 1860-2000Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision MechanicsPhysicsNotes: Abstract We discuss the separation problem of bulk vs interface contributions in optical Second-Harmonic Generation (SHG). A new method is presented, which — in special cases — provides a full separation of all interface and bulk tensor components. The method is based on measurements in a thin-film geometry, and the relation between two bulk tensor components obtained from group-theoretical arguments. The separation problem in its strict sense is shown to be absent in Magnetization-induced SHG (MSHG). Though, in practice, also in the MSHG case interface and bulk contributions can be closely resemblant. The approach is illustrated by second-harmonic experiments on C60 thin films. SHG in this system is found to be completely dominated by bulk processes.Type of Medium: Electronic ResourceURL: -
14Articles: DFG German National LicensesStaff View
ISSN: 1476-4687Source: Nature Archives 1869 - 2009Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsNotes: [Auszug] IN trying to identify the mechanism re-sponsible for the behaviour of high-temperature (high-Tc) superconductors, it is important to obtain a useful descrip-tion of the electrons in the materials, above and below the transition tempera-ture, especially near the characteristic energy or 'Fermi ...Type of Medium: Electronic ResourceURL: -
15Articles: DFG German National LicensesStaff View
ISSN: 1572-9540Source: Springer Online Journal Archives 1860-2000Topics: PhysicsNotes: Abstract The effects of doping the orthoferrite LaFeO3 with Ga, Ni, Cr, Sc and Al on the hyperfine fields at the57Fe nuclei are investigated and discussed. The dependence of the magnetic hyperfine field at 4.2 K on the kind of nearest neighbour can be described in terms of a “supertransfer” model based upon the LCAO method.Type of Medium: Electronic ResourceURL: -
16Articles: DFG German National LicensesStaff View
ISSN: 1572-9605Keywords: Antiferromagnetism ; Optical properties ; Heisemberg modelSource: Springer Online Journal Archives 1860-2000Topics: Electrical Engineering, Measurement and Control TechnologyPhysicsNotes: Abstract Recent measured bands in the mid IR of parent insulating compounds of cuprate superconductors [Perkins et al. Phys. Rev. Lett.71 1621 (1993)] are interpreted as multimagnon infrared (IR) absorption assisted by phonons. We present results for the coupling constant of light with this excitations and exact diagonalization results for the spectra and compare with interacting spin wave theory. The observed structures correspond to the absorption of one phonon plus two magnons and one phonon plus higher multimagnon absorption processes. Our results imply that IR absorption can be used as a unique probe of quantum antiferromagnetic systems.Type of Medium: Electronic ResourceURL: -
17Articles: DFG German National LicensesStaff View
ISSN: 1572-9605Keywords: Antiferromagnetism ; optical properties ; Heisenberg model ; cuprates ; nickelatesSource: Springer Online Journal Archives 1860-2000Topics: Electrical Engineering, Measurement and Control TechnologyPhysicsNotes: Abstract We discuss two-magnon phonon-assisted infrared absorption in two-dimensional Heisenberg systems like the parent insulating high-T c cuprates (spin 1/2) and nickelates (spin 1). The theoretical line shape is compared with experiments. In the case of the cuprates it explains the mid-infrared peaks observed in the insulator. In the case of the nickelates the predicted line shape is also shown to agree with the experiments. We discuss the possibility to observe these excitations in other experiments.Type of Medium: Electronic ResourceURL: