Magnetic state in RAgAl (R=Dy, Ho, Er)

Heimann, J.; Dunikowski, Dawid

doi:10.1016/j.jallcom.2005.12.055

Cited by 7 publications

(12 citation statements)

References 15 publications

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“…21,32 It may be mentioned here that the presence of competing interactions and the disorder arising from random distribution of nonmagnetic atoms lead to the formation of glassy state in other RAgAl compounds as well. 34,35 The nonsaturation tendency seen in the M͑H͒ isotherms of title compound ͑see Fig. 4͒ may also have origin in the glassy magnetic state.…”

Section: Resultsmentioning

confidence: 97%

Investigations on magnetic and magnetocaloric properties of the intermetallic compound TbAgAl

Singh

Kumar

Суреш

et al. 2009

Journal of Applied Physics

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The effect of distributed exchange parameters on magnetocaloric refrigeration capacity in amorphous and nanocomposite materials J. Appl. Phys. 111, 07A334 (2012) Particle size dependent hysteresis loss in La0.7Ce0.3Fe11.6Si1.4C0.2 firstorder systems Appl. Phys. Lett. 100, 072403 (2012) Magnetocaloric effect and refrigerant capacity in 0.44, 0.46 Magnetic and magnetocaloric properties of the intermetallic compound TbAgAl have been investigated. Temperature dependence of magnetization data revealed that TbAgAl exhibits magnetic ordering at 59 K and possesses competing ferromagnetic-antiferromagnetic interactions, which leads to the formation of Griffiths-like phase. The field dependence of magnetization data shows the existence of a metamagnetic-like transition at a critical field of 10 kOe. Unusually potent relaxation effects are seen in the time dependence of magnetization data in the ordered phase. The presence of spin-glass-like state is found to affect magnetocaloric properties of this compound.

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Section: Resultsmentioning

confidence: 97%

Investigations on magnetic and magnetocaloric properties of the intermetallic compound TbAgAl

Singh

Kumar

Суреш

et al. 2009

Journal of Applied Physics

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“…Magnetic studies reveal that the REAgAl compounds undergoes a long range magnetic order phase transition at 10, 16, 50, 64, 35, 18 and 13 K for RE = Pr, Nd, Gd, Tb, Dy, Ho and Er, respectively. In addition, a spin glass-like transition was also observed at lower temperature [17,18]. Recently, the magnetic and magnetocaloric properties in TbAgAl have been studied.…”

Section: Introductionmentioning

confidence: 95%

“…The ternary intermetallic compounds of REAgAl, where RE is rare-earth, crystallized in CeCu 2 -type orthorhombic structure have attracted some attentions due to the exhibition of interesting physical properties [17][18][19]. Magnetic studies reveal that the REAgAl compounds undergoes a long range magnetic order phase transition at 10, 16, 50, 64, 35, 18 and 13 K for RE = Pr, Nd, Gd, Tb, Dy, Ho and Er, respectively.…”

Section: Introductionmentioning

confidence: 99%

Magnetic properties and magnetocaloric effect in ternary REAgAl (RE= Er and Ho) intermetallic compounds

Zhang

Yang

Wilde

2015

Journal of Alloys and Compounds

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“…Compounds in RAgAl (R=La-Nd, Sm, Gd-Er, Y) [101,102,103] and RAgGa (R=La-Nd, Gd-Lu, Y) [104,105] crystallize in CeCu2 type orthorhombic structure. YbAgAl was reported to crystallize in MgZn2 type structure [101].…”

Section: Introductionmentioning

confidence: 99%

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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Magnetic state in RAgAl (R=Dy, Ho, Er)

Cited by 7 publications

References 15 publications

Investigations on magnetic and magnetocaloric properties of the intermetallic compound TbAgAl

Investigations on magnetic and magnetocaloric properties of the intermetallic compound TbAgAl

Magnetic properties and magnetocaloric effect in ternary REAgAl (RE= Er and Ho) intermetallic compounds

Review on magnetic and related properties of RTX compounds

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