Magnetic properties of RTiGe compounds

Никитин, С.А.; Tskhadadze, I.A; Telegina, I. V.; Морозкин, А.В.; Seropegin, Yu. D.

doi:10.1016/s0304-8853(97)01036-6

Cited by 38 publications

(24 citation statements)

References 3 publications

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“…Magnetic structure of these compounds can be characterized by FM W slabs, where R moments are aligned in basal plane, while moments in different W slabs are coupled antiferromagnetically [13]. Hence, the magnetic structures of these compounds combine both FM and AFM exchange interactions and yields positive θp values [13]. Due to coexistence of FM and AFM interactions, most of the compounds in this series show field induced metamagnetic transition.…”

Section: Rtix Compoundsmentioning

confidence: 99%

“…Deppe et al [154] reported the first order metamagnetic transition in CeTiGe. Magnetic structure of these compounds can be characterized by FM W slabs, where R moments are aligned in basal plane, while moments in different W slabs are coupled antiferromagnetically [13]. Hence, the magnetic structures of these compounds combine both FM and AFM exchange interactions and yields positive θp values [13].…”

Section: Rtix Compoundsmentioning

confidence: 99%

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Review on magnetic and related properties of RTX compounds

Gupta

Суреш

2015

Journal of Alloys and Compounds

256

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: Rtix Compoundsmentioning

confidence: 99%

Section: Rtix Compoundsmentioning

confidence: 99%

Review on magnetic and related properties of RTX compounds

Gupta

Суреш

2015

Journal of Alloys and Compounds

256

124

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“…DyTiGe is reported as an antiferromagnet with a N! eel temperature of 175 K [1]. A neutrondiffraction study made on an as-cast DyTiGe sample also showed that this compound adopts the tetragonal CeFeSi-type structure and orders antiferromagnetically with a propagation vector q ¼ ð0; 0; 0:5Þ below T N ¼ 179 K [2], or for annealed sample below T N ¼ 170 K [3].…”

mentioning

confidence: 92%

Electrical and magnetic transport properties of DyTiGe

Dagula

Tegus²,

et al. 2004

Journal of Magnetism and Magnetic Materials

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“…The intermetallic compounds GdTiGe and GdTiSi are also characterized by the essentially high temperatures: for CeScSi-type GdTiGe the T C = 376 K [4], for CeFeSi-type GdTiGe the T N = 412 K [5] and for CeFeSi-type GdTiSi T C = 294 K [6]. A number of experiments on the temperature dependence of magnetic and kinetic properties have been performed to clarify the relationship between the electronic and magnetic structures of these alloys.…”

Section: Introductionmentioning

confidence: 98%