Hyperfine interactions studied by 119Sn Mössbauer spectroscopy in TbAuSn and TmAuSn compounds

Łątka, Kazimierz; Gurgul, Jacek; Kmieć, R.; Pacyna, A.W.; Chajec, W.

doi:10.1016/j.jallcom.2005.03.061

Cited by 9 publications

(3 citation statements)

References 12 publications

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“…The smaller quadrupole splitting for α-CeCuSn indicates a decrease in the electric field gradient at the tin site in α-CeCuSn as compared to β-CeCuSn. The isomer shifts are in the typical range observed for tin in intermetallic compounds [35][36][37][38][39] and comparable to those measured for the corresponding gold and silver stannides.…”

Section: Sn Mössbauer Spectroscopysupporting

confidence: 82%

Structure and Properties of α- and β-CeCuSn: A Single Crystal and Mössbauer Spectroscopic Investigation

Sebastian¹,

Rayaprol²,

Hoffmann³

et al. 2007

Zeitschrift Für Naturforschung B

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Two modifications of CeCuSn were prepared from the elements: the high-temperature (β ) modification crystallizes directly from the quenched sample, while the low-temperature (α) modification is formed after annealing at 700 • C for one month. Both modifications were investigated by powder and single crystal X-ray diffraction. We find for β -CeCuSn the ZrBeSi-type structure, space group P6 3 /mmc, a = 458.2(1), c = 793.7(2) pm, wR2 = 0.0727, 148 F 2 values, 8 variable parameters. In the case of α-CeCuSn we find the NdPtSb-type structure, space group P6 3 mc, a = 458.4(1), c = 785.8(2) pm, wR2 = 0.0764, 233 F 2 values, 11 variable parameters. The copper and tin atoms build up layers of ordered [Cu 3 Sn 3 ] hexagons. The layers are planar in β -CeCuSn, however, with highly anisotropic displacements of the copper and tin atoms. In α-CeCuSn a puckering effect is observed resulting in a decrease of the c lattice parameter. Both modifications of CeCuSn exhibit antiferromagnetic ordering, but there is a considerable difference in their magnetic behaviour. Anomalies in the physical properties of the α-and β -modifications of CeCuSn have been detected by Mössbauer spectroscopy and magnetic and specific heat measurements, which serve to explain the structure-property relations.

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Section: Sn Mössbauer Spectroscopysupporting

confidence: 82%

Structure and Properties of α- and β-CeCuSn: A Single Crystal and Mössbauer Spectroscopic Investigation

Sebastian¹,

Rayaprol²,

Hoffmann³

et al. 2007

Zeitschrift Für Naturforschung B

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“…The dc and ac magnetic susceptibility data show two magnetic transitions at TN=10.5 K (corresponding to AFM to another magnetic transition) and TC= 13.8 K (transition from magnetic to paramagnetic) in NdAuSn [446,447]. It has been reported that the ac susceptibility measurements in TmAuSn show no magnetic ordering in the temperature range of 4.8-31.2 K. Łątka et al [448] reported that TbAuSn orders antiferromagnetically, while TmAuSn does not show any magnetic order in whole temperature range under study.…”

Section: Raux Compoundsmentioning

confidence: 99%

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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“…Usually these fields are between 1 and 5 T, but for EuZnSn a huge hyperfine field of 12.8 T has been observed [182,183]. Sometimes magnetic hyperfine field distributions are observed, e. g. in TbAuSn [180].…”

Section: Rare Earth Metal Based Stannidesmentioning

confidence: 99%

Stannides and Intermetallic Tin Compounds – Fundamentals and Applications

Pöttgen

2006

Zeitschrift Für Naturforschung B

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Tin, tin alloys and intermetallic tin compounds play a key role in many technologies and high-tech applications. Many of these intermetallics find application in daily life such as pewterware, bronzes, solders, fusible alloys, superconductors, capsules for wine bottles or tinplate packaging. Many of the applications are directly related to distinct stannides or intermetallic tin compounds. The crystal chemistry and chemical bonding of these materials as well as their applications are briefly reviewed.

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Hyperfine interactions studied by 119Sn Mössbauer spectroscopy in TbAuSn and TmAuSn compounds

Cited by 9 publications

References 12 publications

Structure and Properties of α- and β-CeCuSn: A Single Crystal and Mössbauer Spectroscopic Investigation

Structure and Properties of α- and β-CeCuSn: A Single Crystal and Mössbauer Spectroscopic Investigation

Review on magnetic and related properties of RTX compounds

Stannides and Intermetallic Tin Compounds – Fundamentals and Applications

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