Systematic study of anisotropic transport and magnetic properties of RAgSb2 (R=Y, La–Nd, Sm, Gd–Tm)

Myers, K. D.; Bud’ko, Sergey L.; Fisher, I. R.; Islam, Zahirul; Kleinke, Holger; Lacerda, A.; Canfield, Paul C.

doi:10.1016/s0304-8853(99)00472-2

Cited by 192 publications

(284 citation statements)

References 24 publications

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“…7(b)), it is clear that the paramagnetic susceptibility of SmPd 2 P 2 does not follow a CW law up to 300K, and appears to saturate roughly at room temperature. Similar behavior has been reported for other Sm bearing compounds [25,[27][28][29]. A likely explanation for this could be thermal population of the Sm 3+ 's Hund's rule excited states.…”

Section: F Smpd2p2supporting

confidence: 57%

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Magnetization and transport properties of single crystalline RPd2P2 (R=Y, La–Nd, Sm–Ho, Yb)

Drachuck

Böhmer

Bud’ko

et al. 2016

Journal of Magnetism and Magnetic Materials

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Single crystals of RPd2P2 (R=Y, La-Nd, Sm-Ho, Yb) were grown out of a high temperature solution rich in Pd and P and characterized by room-temperature powder X-ray diffraction, anisotropic temperature-and field-dependent magnetization and temperature-dependent in-plane resistivity measurements. In this series, YPd2P2 and LaPd2P2 and YbPd2P2 (with Yb +2 ) are non localmoment bearing, whereas CePd2P2 and PrPd2P2 order at low temperature with a ferromagnetic component along the crystallographic c-axis. The rest of the series manifest low temperature antiferromagnetic ordering. EuPd2P2 has Eu +2 ions and both EuPd2P2 and GdPd2P2 have isotropic paramagnetic susceptibilities consistent with L = 0 and J = S = 7 2 and exhibit multiple magnetic transitions. For R=Eu-Dy, there are multiple, T > 1.8 K transitions in zero applied magnetic field and for R=Nd, Eu, Gd, Tb, and Dy there are clear metamagnetic transitions at T=2.0 K for H < 55 kOe. Strong anisotropies arising mostly from crystal electric field (CEF) effects were observed for most magnetic rare earths with L = 0. The experimentally estimated CEF parameters B 2 0 were calculated from the anisotropic paramagnetic θ ab and θc values and compared to theoretical trends across the rare earth series. The ordering temperatures as well as the polycrystalline averaged paramagnetic Curie-Weiss temperature, θave, were extracted from magnetization and resistivity measurements, and compared to the de-Gennes factor.

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Section: F Smpd2p2supporting

confidence: 57%

“…Similar to CeAgSb 2 [26], CePd 2 P 2 is a rare example of a low-temperature, Ce-based ferromagnet. Although this compound was previously reported, the work has been done on polycrystalline samples [9][10][11][12], therefore the anisotropic characteristics of CePd 2 P 2 were not studied.…”

Section: Cepd2p2mentioning

confidence: 99%

Magnetization and transport properties of single crystalline RPd2P2 (R=Y, La–Nd, Sm–Ho, Yb)

Drachuck

Böhmer

Bud’ko

et al. 2016

Journal of Magnetism and Magnetic Materials

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“…These systems also present, as LaSb 2 , large and unsaturating magnetoresistances [2]. In LaAgSb 2 , the CDW was observed in thermodynamic and transport measurements, in x-ray scattering experiments, and studied as a function of substitution [20][21][22]. Substitution of La with Ce in La 1−x Ce x AgSb 2 gives a suppression of the CDW and a broadening of the observed features in resistivity [23,24].…”

Section: Introductionmentioning

confidence: 95%

Charge density wave in layeredLa1−xCexSb2

et al. 2015

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The layered rare-earth diantimonides RSb 2 are anisotropic metals with generally low electronic densities whose properties can be modified by substituting the rare earth. LaSb 2 is a nonmagnetic metal with a low residual resistivity presenting a low-temperature magnetoresistance that does not saturate with the magnetic field. It has been proposed that the latter can be associated to a charge density wave (CDW), but no CDW has yet been found. Here we find a kink in the resistivity above room temperature in LaSb 2 (at 355 K) and show that the kink becomes much more pronounced with substitution of La by Ce along the La 1−x Ce x Sb 2 series. We find signatures of a CDW in x-ray scattering, specific heat, and scanning tunneling microscopy (STM) experiments in particular for x ≈ 0.5. We observe a distortion of rare-earth-Sb bonds lying in-plane of the tetragonal crystal using x-ray scattering, an anomaly in the specific heat at the same temperature as the kink in resistivity and charge modulations in STM. We conclude that LaSb 2 has a CDW which is stabilized in the La 1−x Ce x Sb 2 series due to substitutional disorder.

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“…It should be noted, though, that, in some cases, it is useful to have a physically softer filtering material. For example, in recent growths of CeAgSb 2 out of 5 ml crucibles [4], a single, very large crystal would grow and, Figure 2. (a) Slightly sub-2 ml crucible set that is designed to fit inside 11.9 mm I.D.…”

Section: Resultsmentioning

confidence: 99%

“…Simple laboratory centrifuges readily produce rotational frequencies of 2000 rpm and can have effective radii (sample to axis of rotation) of 15 cm; such a system can produce accelerations 600 times Earth's gravitational acceleration. This allows for the exceptionally efficient removal of residual solution from crystalline faces, often resulting in mirrored, as grown, surfaces [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Use of frit-disc crucibles for routine and exploratory solution growth of single crystalline samples

Canfield

Kong

Kaluarachchi

et al. 2016

Philosophical Magazine

261

191

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Solution growth of single crystals from high temperature solutions often involves the separation of residual solution from the grown crystals. For many growths of intermetallic compounds, this separation has historically been achieved with the use of plugs of silica wool. Whereas this is generally efficient in a mechanical sense, it leads to a significant contamination of the decanted liquid with silica fibers. In this paper we present a simple design for frit-disc alumina crucible sets that has made their use in the growth single crystals from high temperature solutions both simple and affordable. An alumina frit-disc allows for the clean separation of the residual liquid from the solid phase. This allows for the reuse of the decanted liquid, either for further growth of the same phase, or for subsequent growth of other, related phases. In this paper we provide examples of the growth of isotopically substituted TbCd6 and icosahedral i-RCd quasicrystals, as well as the separation of (i) the closely related Bi2Rh3S2 and Bi2Rh3.5S2 phases and (ii) PrZn11 and Pr2Zn17.

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Systematic study of anisotropic transport and magnetic properties of RAgSb2 (R=Y, La–Nd, Sm, Gd–Tm)

Cited by 192 publications

References 24 publications

Magnetization and transport properties of single crystalline RPd2P2 (R=Y, La–Nd, Sm–Ho, Yb)

Magnetization and transport properties of single crystalline RPd2P2 (R=Y, La–Nd, Sm–Ho, Yb)

Charge density wave in layeredLa1−xCexSb2

Use of frit-disc crucibles for routine and exploratory solution growth of single crystalline samples

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