Electronic structure and magnetic properties of RCuIn (R=La, Ce, Pr, Nd and Lu) compounds

Szytuła, A.; Tyvanchuk, Yu.; Kalychak, Yaroslav M.; Winiarski, A.; Penc, B.; Zarzycki, A.

doi:10.1016/j.jallcom.2006.07.144

Cited by 5 publications

(6 citation statements)

References 12 publications

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“…Due to the AFM ordering with different values of local moments for these sublattices, the compound shows an overall FM behavior [181]. XPS studies in RCuIn (R=La-Nd, Lu) indicate that the valence bands are mainly determined by the Cu 3d band [248]. ray diffraction data was confirmed by X-ray absorption spectra performed at L3(2p-5d) and M5,4 (3d-4f) edges of Ce as well.…”

Section: Electronic Structure Calculations and Electron Spectroscopymentioning

confidence: 83%

“…XPS studies in RCuIn (R=La-Nd, Lu) indicate that the valence bands are mainly determined by the Cu 3d band [248]. The 4f states in Pr and Nd hybridize with the Cu 3d state and the appearance of 3d 9 4f 0 component in CeCuIn gives a clear evidence of intermediate valence behavior of Ce [248]. Electronic structure calculations for LaCuSn show relatively low density of states at Fermi energy.…”

Section: Electronic Structure Calculations and Electron Spectroscopymentioning

confidence: 97%

“…Due to the AFM ordering with different values of local moments for these sublattices, the compound shows an overall FM behavior [181]. XPS studies in RCuIn (R=La-Nd, Lu) indicate that the valence bands are mainly determined by the Cu 3d band [248]. The 4f states in Pr and Nd hybridize with the Cu 3d state and the appearance of 3d 9 4f 0 component in CeCuIn gives a clear evidence of intermediate valence behavior of Ce [248].…”

Section: Electronic Structure Calculations and Electron Spectroscopymentioning

confidence: 99%

“…In the RCuIn family, CeCuIn is paramagnetic down to 1.9 K, while the compounds with R=Nd, Gd, Tb, Ho, Er show AFM ordering in which the magnetic structure for Nd, Tb and Ho is non-collinear and for Er it is collinear [248,249,250]. A number of authors have studied the magnetization and magnetic structure of RCuSi compounds.…”

Section: Rcux Compoundsmentioning

confidence: 99%

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Review on magnetic and related properties of RTX compounds

Gupta

Суреш

2015

Journal of Alloys and Compounds

257

124

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RTX (R=rare earths, T= 3d/4d/5d, transition metals such as Sc, Ti, Mn, Fe, Co, Ni, Cu, Ru, Rh, Pd, Ag, Os, Ir, Pt, Au, and X=p-block elements such as Al, Ga, In, Si, Ge, Sn, As, Sb, Bi) series is a huge family of intermetallics compounds. These compounds crystallize in different crystal structures depending on the constituents. Though these compounds have been known for a long time, they came to limelight recently in view of the large magnetocaloric effect (MCE) and magnetoresistance (MR) shown by many of them. Most of these compounds crystallize in hexagonal and tetragonal crystal structures. Some of them show crystal structure modification with annealing temperature; while a few of them show iso-structural transition in the paramagnetic regime. Their magnetic ordering temperatures vary from very low temperatures to temperatures well above room temperature (~510 K). Depending on the crystal structure, they show a variety of magnetic and electrical properties.These compounds have been characterized by means of a variety of techniques/measurements such as x-ray diffraction, neutron diffraction, magnetic properties, heat capacity, magnetocaloric properties, electrical resistivity, magnetoresistance, thermoelectric power, thermal expansion, Hall effect, optical properties, XPS, Mössbauer spectroscopy, ESR, μSR, NMR, NQR etc. Some amount of work on theoretical calculations on electronic structure, crystal field interaction and exchange interactions has also been reported. The interesting aspect of this series is that they show a variety of physical properties such as Kondo effect, heavy fermion behavior, spin glass state, intermediate valence, superconductivity, multiple magnetic transitions, metamagnetism, large MCE, large positive as well as negative MR, spin orbital compensation, magnetic polaronic behavior, pseudo gap effect etc.Except Mn, no other transition metal in these compounds possesses considerable magnetic moments.Because of this RMnX compounds in general have high ordering temperatures. Interstitial modification using hydrogen and nitrogen is found to alter their crystal structures and magnetic properties considerably. RTX compounds also show interesting pressure effects on their structural and magnetic properties. In summary, these compounds show variety of physical properties over a wide range of temperatures. This review is intended to cover all the important results obtained in this family, particularly in the last few years.

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Section: Electronic Structure Calculations and Electron Spectroscopymentioning

confidence: 83%

Section: Electronic Structure Calculations and Electron Spectroscopymentioning

confidence: 97%

“…Due to the AFM ordering with different values of local moments for these sublattices, the compound shows an overall FM behavior [181]. XPS studies in RCuIn (R=La-Nd, Lu) indicate that the valence bands are mainly determined by the Cu 3d band [248]. The 4f states in Pr and Nd hybridize with the Cu 3d state and the appearance of 3d 9 4f 0 component in CeCuIn gives a clear evidence of intermediate valence behavior of Ce [248].…”

Section: Electronic Structure Calculations and Electron Spectroscopymentioning

confidence: 99%

Section: Rcux Compoundsmentioning

confidence: 99%

See 2 more Smart Citations

Review on magnetic and related properties of RTX compounds

Gupta

Суреш

2015

Journal of Alloys and Compounds

257

124

View full text Add to dashboard Cite

show abstract

“…In the RCuGa series, there are only reports on CeCoGa and EuCuGa compounds, which crystallize in the CeCu2 type orthorhombic crystal structure [143,144]. RCuIn (R=La-Nd, Gd, Tb, Ho, Er, Lu) compounds were found to crystallize in the ZrNiAl type hexagonal crystal structures [145,146].…”

Section: Rcux Compoundsmentioning

confidence: 99%