X-ray spectroscopic study of 4f heavy rare earth metals

Padalia, B. D.; Gupta, Shuchi; Vijayavargiya, V. P.; Tripathi, Bhavana

doi:10.1088/0305-4608/4/6/020

Cited by 28 publications

(5 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…For other lanthanides they also displayed absorption spectra, which were relatively similar to the emission spectra; however, this comparison was not given for Lu. At higher energies than the present research, Padalia et al 17 obtained absorption spectra of Lu and other lanthanides at L 2,3 edges.…”

Section: Introductioncontrasting

confidence: 45%

Transmittance and optical constants of Lu films in the 3–1800 eV spectral range

García-Cortés

Marcos

Larruquert

et al. 2010

Journal of Applied Physics

View full text Add to dashboard Cite

A microscopic study of strongly plasmonic Au and Ag island thin films J. Appl. Phys. 113, 034302 (2013) Near-field simulation of obliquely deposited surface-enhanced Raman scattering substrates J. Appl. Phys. 112, 113111 (2012) Characterization of Ru thin-film conductivity upon atomic layer deposition on H-passivated Si(111) J. Appl. Phys. 112, 113517 (2012) Optical response in subnanometer gaps due to nonlocal response and quantum tunneling Appl. Phys. Lett. 101, 233111 (2012) Additional information on J. Appl. Phys. The optical constants n and k of lutetium ͑Lu͒ films were obtained in the 3-1800 eV range from transmittance measurements performed at room temperature. These are the first experimental optical constant data of Lu in the whole range. Thin films of Lu with various thicknesses were deposited by evaporation in ultrahigh vacuum conditions and their transmittance was measured in situ. Lu films were deposited onto grids coated with a thin, C support film. Transmittance measurements were used to obtain the extinction coefficient k of Lu films. The refractive index n of Lu was calculated with Kramers-Krönig analysis. k data were extrapolated both on the high and on the low-energy sides by using experimental and calculated k values available in the literature. Lu, similar to other lanthanides, has a low-absorption band below the O 2,3 edge onset; the lowest absorption was measured at ϳ25.1 eV. Therefore, Lu is a promising material for filters and multilayer coatings in the energy range below the O 2,3 edge in which most materials have a large absorption. Good consistency of the data was obtained through f and inertial sum rules.

show abstract

Section: Introductioncontrasting

confidence: 45%

Transmittance and optical constants of Lu films in the 3–1800 eV spectral range

García-Cortés

Marcos

Larruquert

et al. 2010

Journal of Applied Physics

View full text Add to dashboard Cite

show abstract

“…1. A prominent absorption maximum, A, called white line [ 5 ] associated with the L,-absorption edge of terbium is ascribed to an allowed electron transition 2p --> 5d6s (unoccupied with high density of states). This feature is not seen in the Kabsorption curve of cobalt because the transition 1s 4 3d4s is not allowed by the electric dipole selection rules and, therefore, it is weak.…”

Section: Resultsmentioning

confidence: 99%

X‐ray absorption edge shifts of cobalt and rare earth ions in rare earth–cobalt intermetallic compounds

Hatwar

Malik

Ghatikar

et al. 1979

Physica Status Solidi (b)

View full text Add to dashboard Cite

Chemical shifts AE of K-absorption edge of Co and L,-absorption edge of Gd, Tb, and Dy in GdCo,, TbCo,, and DyCo, intermetallic compounds are measured and effective charges on the absorbing ions are estimated. It is found that the magnitudes of AE and q for Co in RCo, (R refers to rare earth ions) lie in between those reported for RCo, and RCo, compounds. Further, AE and g of Co increase with increasing number of rare earth atoms per cobalt atom (RCo, < RCo, < RCo,)while the magnetic moment of cobalt in these intermetallic compounds indicates the opposite trend (RCo, > RCo, > RCo,).Chemische Verschiebungen AE der K-Absorptionskante von Co sowie der L,-Absorptionskante von Gd, Tb und I)y in den intermetallischen Verbindungen GdCo,, TbCo, und DyCo, werden gemessen und die effektiven Ladungen der absorbierenden Ionen bestimmt. Es wird gefunden, dal3 die Werte von AE und q fur Co in RCo, (R bezieht sich auf Seltene Erd-Ionen) zwischen denen liegen, die fur RCo,-und RCo,-Verbindungen berichtet werden. Weiterhin nehmen AE und q von Co mit ansteigender Anzahl von Seltenen Erdatomen pro Kobaltatom (RCo, < RCo, < RCo,) zu, wahrend das magnetische Moment von Kobalt in diesen intermetallischen Verbindungen den entgegengesetzten Trend zeigt (RCo, > RCo, > RCo,).

show abstract

“…Tracy obtained spectra of vapors of Ho and other lanthanides in the $21-40 eV range, and reported relative absorption crosssection plots. Padalia et al 26 obtained absorption spectra of Ho and other lanthanides at L 2,3 edges. Materlik et al 27 measured L-edge absorption spectra of Ho and other lanthanides.…”

Section: Introductionmentioning

confidence: 99%

Transmittance and optical constants of Ho films in the 3–1340 eV spectral range

Fernández-Perea

Larruquert

Aznárez

et al. 2011

Journal of Applied Physics

View full text Add to dashboard Cite

Experimental investigation of photonic band gap influence on enhancement of Raman-scattering in metaldielectric colloidal crystals J. Appl. Phys. 112, 084303 (2012) Composition, nanostructure, and optical properties of silver and silver-copper lusters J. Appl. Phys. 112, 054307 (2012) Influence of alloy inhomogeneities on the determination by Raman scattering of composition and strain in Si1-xGex/Si(001) layers J. Appl. Phys. 112, 023512 (2012) Plasmon coupling in circular-hole dimers: From separation-to touching-coupling regimes J. Appl. Phys. 112, 013113 (2012) Correlation between reflectivity and resistivity in multi-component metallic systems Appl. Phys. Lett. 101, 011902 (2012) Additional information on J. Appl. Phys. The optical constants n and k of holmium (Ho) films were obtained in the 3-1340ÀeV range from transmittance measurements performed at room temperature. Thin films of Ho with various thicknesses were deposited by evaporation in ultra high vacuum conditions and their transmittance was measured in situ. Ho films were deposited onto thin C-film substrates supported on high transmittance grids. Transmittance measurements were used to obtain the extinction coefficient k of Ho films. The refractive index n of Ho was calculated with KramersÀKrönig analysis; in order to do this, k data were extrapolated both on the high and on the low energy parts of the spectrum by using experimental and calculated k values available in the literature. Ho, similar to other lanthanides, has a low-absorption band below the O 2,3 edge onset; the lowest absorption was measured at $22 eV. Therefore, Ho is a promising material for filters and multilayer coatings in the energy range below the O 2,3 edge in which most materials have a large absorption. Good consistency of the data resulted from the application of f and inertial sum rules.

show abstract

X-ray spectroscopic study of 4f heavy rare earth metals

Cited by 28 publications

References 10 publications

Transmittance and optical constants of Lu films in the 3–1800 eV spectral range

Transmittance and optical constants of Lu films in the 3–1800 eV spectral range

X‐ray absorption edge shifts of cobalt and rare earth ions in rare earth–cobalt intermetallic compounds

Transmittance and optical constants of Ho films in the 3–1340 eV spectral range

Contact Info

Product

Resources

About