Magnetic properties of some rare earth silicides: GdSi, Gd5Si3, Dy5−xNdxSi3

Ganapathy, E. V.; Kugimiya, K.; Steinfink, H.; Tchernev, D. I.

doi:10.1016/0022-5088(76)90139-9

Cited by 30 publications

(7 citation statements)

References 7 publications

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“…4. Two consecutive maxima are observed in the χ (B = 1 mT) plot at 78 and 54 K, whereas for the χ dc in a field of B = 0.1 T, the maximum at 54 K is accompanied with a soft shoulder around 78 K. The maximum at 54 K is in good accord with literature data [26,30]. This transition is attributed to an antiferromagnetic phase transition.…”

Section: Gdsisupporting

confidence: 89%

“…It has been demonstrated in literature that Gd 5 Si 3 does not have a straightforward antiferromagnetic structure. Indeed, magnetization measurements in applied fields up to 12 T at 4.2 K have been interpreted in terms of a helimagnetic ordering gradually changing to a ferromagnetic state with a saturation value µ S = 7 µ B /Gd atom, due to a metamagneticlike behavior [25][26][27][28]. The isothermal magnetization plot versus field (see inset Fig.…”

Section: Gd 5 Simentioning

confidence: 99%

See 1 more Smart Citation

Structural chemistry, magnetism and electrical properties of binary Gd silicides and Ho3Si4

Roger

Babizhetskyy

Hiebl

et al. 2006

Journal of Alloys and Compounds

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Section: Gdsisupporting

confidence: 89%

Section: Gd 5 Simentioning

confidence: 99%

Structural chemistry, magnetism and electrical properties of binary Gd silicides and Ho3Si4

Roger

Babizhetskyy

Hiebl

et al. 2006

Journal of Alloys and Compounds

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“…The difference in the background is also evident and consistent with the incoherent paramagnetic scattering at 310 K. Two small bumps near 1.48 • and 3.55 • are supposed to correspond to the low temperature magnetic diffraction of the 5:3 phase, below 110 K [20]. From magnetic measurements the magnetic structure of the hexagonal Gd 5 Ge 3 at low temperature was supposed to be helical [21]. Recent single crystal ND experiments [22] showed a modulated structure with wave vector k = (0, 0, 0.40), therefore we can expect a peak at 2θ = 1.8 • , but actually the 5:3 phase is composed of both Ge and Si Table 1.…”

Section: Neutron Diffractionsupporting

confidence: 67%

Magnetic structure of Gd₅Si₂Ge₂and Gd₅Si₂Ge_1.9M_0.1(M = Ga, Cu)

Palacios

Rodríguez-Velamazán

Wang

et al. 2010

J. Phys.: Condens. Matter

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Powder x-ray diffraction patterns of the doped compounds Gd(5)Si(2)Ge(1.9)M(0.1) (M = Ga, Cu) show the same crystal structure, orthorhombic Gd(5)Si(4)-type, in the ferromagnetic and paramagnetic phases. This is different from Gd(5)Si(2)Ge(2), whose paramagnetic phase is monoclinic. The magnetic structure at low temperature, solved from diffraction experiments with hot neutrons, is the same in all the three compounds, collinear ferromagnetic with moments along the crystal b-axis, or F(y)F(By) according to Bertaut's notation. These results, combined with those of heat capacity and magnetocaloric effect, indicate, similarly to Gd(5)Si(4), a second-order, purely magnetic, transition in the doped compounds explaining the absence of hysteresis.

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“…This behavior is similar to that of Gd 5 Si 3 , for example, which is believed to be helimagnetic. 39 All these measurements suggest that GdScGeH has a complex magnetic behavior as often observed in magnetic CeScSi-type compounds. 40,41 The results of the specific heat, C p , investigations for GdScGeH (sample 2) are presented in Figure 6.…”

Section: Resultsmentioning

confidence: 82%

Hydrogen Insertion in the Intermetallic GdScGe: A Drastic Reduction of the Dimensionality of the Magnetic and Transport Properties

et al. 2018

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Intermetallic phases have been investigated with respect to their ability to accept small atoms in interstitial sites without changing the host structure. Among those, the intermetallic compounds crystallizing in the tetragonal CeScSi-type structure are able to absorb hydrogen atoms. These compounds are of particular interest because they can show electride-like character and, therefore, can be exploited as new catalysts. Here we report the case of GdScGe which uptakes hydrogen at 623 K and under a H2 gas pressure between 0.5 to 4 MPa. The formation of the hydride GdScGeH, with H atoms entering into the [Gd4] tetrahedra, preserves the host structure but induces an anisotropic volume expansion with a strong increase of the c parameter and a slight decrease of the a parameter. Interestingly, we show for the first time for this family of materials that hydrogen insertion reduces the dimensionality of the magnetic and transport properties from 3D to quasi-2D which results in a vanishing of the ferromagnetic order (TC = 350 K for GdScGe) and a change of the metallic conduction behavior to a non-metallic one. As evidenced by density functional theory calculations, such drastic effects are accounted for through the Gd-H chemical bonding effect and the oxidizing effect of H whereas the volume expansion plays only a minor role.

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Magnetic properties of some rare earth silicides: GdSi, Gd5Si3, Dy5−xNdxSi3

Cited by 30 publications

References 7 publications

Structural chemistry, magnetism and electrical properties of binary Gd silicides and Ho3Si4

Structural chemistry, magnetism and electrical properties of binary Gd silicides and Ho3Si4

Magnetic structure of Gd₅Si₂Ge₂and Gd₅Si₂Ge_1.9M_0.1(M = Ga, Cu)

Hydrogen Insertion in the Intermetallic GdScGe: A Drastic Reduction of the Dimensionality of the Magnetic and Transport Properties

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Magnetic properties of some rare earth silicides: GdSi, Gd5Si3, Dy5−xNdxSi3

Cited by 30 publications

References 7 publications

Structural chemistry, magnetism and electrical properties of binary Gd silicides and Ho3Si4

Structural chemistry, magnetism and electrical properties of binary Gd silicides and Ho3Si4

Magnetic structure of Gd5Si2Ge2and Gd5Si2Ge1.9M0.1(M = Ga, Cu)

Hydrogen Insertion in the Intermetallic GdScGe: A Drastic Reduction of the Dimensionality of the Magnetic and Transport Properties

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Magnetic structure of Gd₅Si₂Ge₂and Gd₅Si₂Ge_1.9M_0.1(M = Ga, Cu)