Non-Fermi-liquid behavior in CeRhBi and valence-fluctuating behavior in CeIrSb

Sasakawa, Tetsuya; Shigetoh, Keisuke; Hirata, Daizaburo; Umeo, Kazunori; Takabatake, Toshiro

doi:10.1016/j.physb.2005.01.006

Cited by 19 publications

(31 citation statements)

References 11 publications

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“…Below CeIrSb shows non-Fermi liquid behavior and a very large negative θp of -1300 K, which is much larger than in CeRhSb. This suggests that c-f (conduction band -4f band) hybridization in CeIrSb is much stronger than that in CeRhSb [118]. YbIrSn shows AFM ordering at TN=3.2 K with Yb ion in trivalent state [403].…”

Section: Rirx Compoundsmentioning

confidence: 97%

“…The resistivity of CeIrSb is larger than that of CeRhSb and CeRhBi. It has been observed that compounds which show gradual decrease in resistivity with a positive curvature seem to be valence fluctuating system [118].…”

Section: Magneto-transport Propertiesmentioning

confidence: 99%

“…It has been reported that HT-LuAgSn crystallizes in NdPtSb type structure [114]. RIrAl (R=Ce-Nd, Sm, Gd-Tm, Lu, Y) [115], RIrGa (R=La-Nd, Gd-Tm, Y) [67,70] RIrGe (R=Ce, Gd-Er) [67,116,117], CeIrSb [118] and YbIrGe [119] compounds crystallize in TiNiSi type structure. Like CeRhAl, Ce in CeIrAl is reported to be in the tetravalent state [115].…”

Section: Introductionmentioning

confidence: 99%

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Review on magnetic and related properties of RTX compounds

Gupta

Суреш

2015

Journal of Alloys and Compounds

261

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: Rirx Compoundsmentioning

confidence: 97%

Section: Magneto-transport Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Review on magnetic and related properties of RTX compounds

Gupta

Суреш

2015

Journal of Alloys and Compounds

261

124

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“…Detailed single crystal studies on these ternary antimonides, however, have not been performed. CeRhSb [7][8][9] and CeIrSb [10][11][12] with the lower VEC adopt the orthorhombic TiNiSi type structure with strongly tilted and puckered Rh 3 Sb 3 and Ir 3 Sb 3 hexagons.…”

Section: Introductionmentioning

confidence: 99%

“…The most interesting compounds are the valence fluctuating systems CeRhSb [7] and CeIrSb [11]. CeRhSb is a so-called Kondo semiconductor and exhibits opening at low temperatures of a small pseudogap in the electronic density of states.…”

Section: Introductionmentioning

confidence: 99%