Ultrahigh-Vacuum-Compatible Diffractometer for Soft X-ray Scattering

Lee, J.-S.; Seung, B. H.; Khim, Taeyoung; Jang, H.; Ko, Kyung-Tae; Park, B.-G.; Park, J.-H.; Lee, K.-B.; Kim, J.-Y.

doi:10.3938/jkps.52.1814

Cited by 5 publications

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“…Reflectometers developed at synchrotron radiation sources for the characterization of optical elements were modified for the study of magnetic thinfilm materials [41,42]. As soft x-ray resonances were found to be very useful for the study of complex ordering in correlated electron systems like charge or orbital order [43] dedicated diffractometers were developed that are now operational at various synchrotron radiation sources [44][45][46][47][48][49][50][51][52][53][54].…”

Section: Methodsmentioning

confidence: 99%

Resonant elastic soft x-ray scattering

et al. 2013

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Abstract. Resonant (elastic) soft x-ray scattering (RSXS) offers a unique element, site, and valence specific probe to study spatial modulations of charge, spin, and orbital degrees of freedom in solids on the nanoscopic length scale. It cannot only be used to investigate single crystalline materials. This method also enables to examine electronic ordering phenomena in thin films and to zoom into electronic properties emerging at buried interfaces in artificial heterostructures. During the last 20 years, this technique, which combines x-ray scattering with x-ray absorption spectroscopy, has developed into a powerful probe to study electronic ordering phenomena in complex materials and furthermore delivers important information on the electronic structure of condensed matter. This review provides an introduction to the technique, covers the progress in experimental equipment, and gives a survey on recent RSXS studies of ordering in correlated electron systems and at interfaces.(Some figures in this article are in colour only in the electronic version)PACS numbers: 61.05.cp, 75.25.Dk

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Section: Methodsmentioning

confidence: 99%

Resonant elastic soft x-ray scattering

et al. 2013

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“…3d) x-ray resonant scattering (XRS) in full combinations of the scattering geometry and the in-coming photon polarization at the 2A beam line in Pohang Light Source [20]. TbMnO 3 (A-type bc cycloid) and Eu 3=4 Y 1=4 MnO 3 (A-type ab cycloid) single crystals were grown by a floating zone method [4,16].…”

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confidence: 99%

Coupled Magnetic Cycloids in MultiferroicTbMnO3andEu3/4Y1/4
Jang
¹
,
Lee
²
,
Ko
³

et al. 2011
Phys. Rev. Lett.
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Based on the detailed Mn L(2,3)-edge x-ray resonant scattering results, we report a new complexity in the magnetic order of multiferroic orthomangnites, which has been considered as the simple A-type cycloid order inducing ferroelectricity. The Dzyaloshinskii-Moriya interaction involved in the orthorhombic distortion brings on F-type canting from the A type, and the ordering type becomes the off-phase synchronized bc cycloid in TbMnO(3) or the tilted antiphase ab cycloid in Eu(3/4)Y(1/4)MnO(3). The F-type canting is responsible for the magnetic field-driven multiferroicity to weak ferromagnetism transition.

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“…RSXS measurements were conducted at beamline 2A of the Pohang Light Source. An ultra-high-vacuum compatible two-circle diffractometer was used with a photodiode as its detector for the measurement [16]. Polarization of the incident x rays was controlled using an elliptical polarization undulator, while both polarizations of the scattered x rays were integrated.…”

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confidence: 99%

Oxygen-Vacancy-Induced Orbital Reconstruction of Ti Ions at the Interface ofLaAlO3/SrTiO3Heterostructures: A Resonant Soft-X-Ray Scattering Study

et al. 2013

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Resonant soft-x-ray scattering measurements have been performed to investigate interface electronic structures of (LaAlO(3)/SrTiO(3)) superlattices. Resonant scattering intensities at superlattice reflections show clear evidence of degeneracy lifting in t(2g) states of interface Ti ions. Polarization dependence of intensities indicates the energy of d(xy) states is lower by ~1 eV than two other t(2g) states. The energy splitting is insensitive to epitaxial strain. The orbital reconstruction is induced by oxygen vacancies and confined to the interface within two unit cells, indicating charge compensation at the polar interfaces.

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Ultrahigh-Vacuum-Compatible Diffractometer for Soft X-ray Scattering

Cited by 5 publications

References 0 publications

Resonant elastic soft x-ray scattering

Resonant elastic soft x-ray scattering

Coupled Magnetic Cycloids in MultiferroicTbMnO3andEu3/4Y1/4
Jang
¹
,
Lee
²
,
Ko
³

et al. 2011
Phys. Rev. Lett.
Self Cite
36
5
19
0
View full text Add to dashboard Cite

Oxygen-Vacancy-Induced Orbital Reconstruction of Ti Ions at the Interface ofLaAlO3/SrTiO3Heterostructures: A Resonant Soft-X-Ray Scattering Study

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Ultrahigh-Vacuum-Compatible Diffractometer for Soft X-ray Scattering

Cited by 5 publications

References 0 publications

Resonant elastic soft x-ray scattering

Resonant elastic soft x-ray scattering

Coupled Magnetic Cycloids in MultiferroicTbMnO3andEu3/4Y1/4Jang1, Lee2, Ko3 et al. 2011Phys. Rev. Lett.Self Cite365190View full textAdd to dashboardCite

Oxygen-Vacancy-Induced Orbital Reconstruction of Ti Ions at the Interface ofLaAlO3/SrTiO3Heterostructures: A Resonant Soft-X-Ray Scattering Study

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Coupled Magnetic Cycloids in MultiferroicTbMnO3andEu3/4Y1/4
Jang
¹
,
Lee
²
,
Ko
³

et al. 2011
Phys. Rev. Lett.
Self Cite
36
5
19
0
View full text Add to dashboard Cite