Structure, magnetic properties and 119Sn Mössbauer spectroscopy of PrRhSn

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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“…The analysis of 119 Sn Mössbauer spectra reveals that the directions of moments in Pr and Nd compounds are close to c-axis [312,573].…”

Section: Mössbauer Studiesmentioning

confidence: 95%

Review on magnetic and related properties of RTX compounds

Gupta

Суреш

2015

Journal of Alloys and Compounds

254

124

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“…These compounds belong to the rich family of R(A)-T-X (R − rare earth or A − actinide element, T − d metal, X − p element) ternary intermetallics [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21], which present a variety of crystal and magnetic structures and a plethora of interesting physical properties, including complex magnetism, unconventional superconductivity, and intermediate valence. Magnetic susceptibility and heat capacity results show that LuZnSn 2 compound does not undergo any magnetic phase transition down to 1.9 K [1,22], and therefore this compound is an ideal reference material for the estimation of magnetic contributions to heat capacity of magnetically ordered isostructural compounds.…”

Section: Introductionmentioning

confidence: 99%

Analysis of heat capacity and Mössbauer data for LuZnSn₂ compound

et al. 2015

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Abstract. New analysis of heat capacity data is presented for LuZnSn 2 compound that takes into account anharmonic effects together with the existence of Einstein modes. Sn Mössbauer spectroscopy was used to monitor the hyperfi ne parameters at the two crystallographically inequivalent Sn sites in the studied compound. The problem of non-unique mathematical resonance spectrum description and the problem how to choose physically meaningful set of hyperfi ne parameters will be thoroughly discussed. Measured quadrupole interaction constants by 119m Sn Mössbauer spectroscopy give estimations for V zz component of electric fi eld gradient tensor at both Sn sites in LuZnSn 2 .

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“…The ternary rare earth metal (RE) rhodium stannides RERhSn have intensively been investigated in recent years with respect to their greatly varying magnetic and electrical properties [1][2][3][4][5][6][7][8]. An overview of the literature is given in [4].…”

Section: Introductionmentioning

confidence: 99%

“…Recent Mössbauer spectroscopy and neutron diffraction studies performed on a few samples of the RERhSn family have shown magnetic ordering at low temperatures [1][2][3][4][5][6][7][8]. In the course of our systematic studies on magnetic properties and γ -ray resonance absorption spectroscopy of equiatomic RERhSn stannides we have now investigated the samarium compound in more detail.…”

Section: Introductionmentioning

confidence: 99%

Hyperfine interactions studied by 119Sn Mössbauer spectroscopy in SmRhSn

et al. 2008

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The polycrystalline stannide SmRhSn was prepared by arc melting of the elements in an argon atmosphere. The title compound crystallizes with the ZrNiAl type structure (space group P62m) with the lattice parameters: a = 739.6(1) and c = 406.9(1) pm. The magnetic and electronic properties of SmRhSn were investigated in detail by magnetic susceptibility measurements and 119 Sn Mössbauer spectroscopy. A transition from a paramagnetic to a ferromagnetic state was determined to be T C = 14.5(1) K. The 119 Sn Mössbauer spectrum recorded in T = 4.2 K was fitted using single component, but with a broad quasi-distribution of magnetic hyperfine fields.

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Structure, magnetic properties and 119Sn Mössbauer spectroscopy of PrRhSn

Cited by 21 publications

References 20 publications

Review on magnetic and related properties of RTX compounds

Review on magnetic and related properties of RTX compounds

Analysis of heat capacity and Mössbauer data for LuZnSn₂ compound

Hyperfine interactions studied by 119Sn Mössbauer spectroscopy in SmRhSn

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Structure, magnetic properties and 119Sn Mössbauer spectroscopy of PrRhSn

Cited by 21 publications

References 20 publications

Review on magnetic and related properties of RTX compounds

Review on magnetic and related properties of RTX compounds

Analysis of heat capacity and Mössbauer data for LuZnSn2 compound

Hyperfine interactions studied by 119Sn Mössbauer spectroscopy in SmRhSn

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Analysis of heat capacity and Mössbauer data for LuZnSn₂ compound