Magnetic and structural transitions in TmGa3

Czopnik, A.; Iliew, N.; Staliński, B.; Mädge, H.; Bazan, C.; Pott, R.

doi:10.1016/0378-4363(85)90235-9

Cited by 22 publications

(11 citation statements)

References 6 publications

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“…1 as C/T versus T 2 plot. The inset in the figure shows two transitions at 4.26 and 4.29 K which were established [4,8] as the antiferromagnetic transition and the antiferroquadrupolar one, respectively. The low-temperature part of the heat capacity is clearly influenced by an energy gap in the spin-wave spectrum.…”

Section: Resultsmentioning

confidence: 99%

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Thermal Properties of TmGa₃

Czopnik

Mädge

Pott

1991

Physica Status Solidi (b)

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Heat capacity and thermal expansion of TmGa, single crystal are reported. At low temperatures in comparison to TN the heat capacity and thermal expansion coefficient have a T3 exp (d/T) dependence with an energy gap d in the spin-wave spectrum equal to 1.15 K. In the paramagnetic state the crystal-field contribution to the thermal properties of TmGa, is analysed.Es wird iiber Messungen der Warmekapazitat und des thermischen Ausdehungskoeffizienten an monokristallinem TmGa, berichtet. Bei tiefen Temperaturen im Vergleich zu TN weisen die Warmekapazitat und der thermische Ausdehungskoeffizient eine T3 exp (d/T)-Abhangigkeit auf mit einer Energieliicke d im Spinwellenspektrum von 1,15 K. Im paramagnetischen Zustand wird der EinfluD der Kristallfcldaufspaltung auf die thermischen Eigenschaften des TmGa, analysiert.

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Section: Resultsmentioning

confidence: 99%

“…It undergoes two first-order transitions very close to each other at TN = 4.26 K and TQ = 4.29 K, corresponding to antiferromagnetic and quadrupolar orderings, respectively [4]. Intensive studies of TmGa, [5 to 81 allow to conclude that the pair interaction between the quadrupoles is strong enough to order them at TQ.…”

Section: Introductionmentioning

confidence: 99%

Thermal Properties of TmGa₃

Czopnik

Mädge

Pott

1991

Physica Status Solidi (b)

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“…The physical properties of NdIn, (a cubic AuCu,-type structure) have been studied in a series of works [l to 81. The compound orders antiferromagnetically a t T , = = 5.90 K through a continuous transition [6]. Due to magnetic structure changes two extra first-order transitions a t TC1 = 4.65 K and TCz = 5.13 K appear IS].…”

Section: Introductionmentioning

confidence: 99%

Thermal properties of NdIn3

Czopnik

Mädge

Pott

et al. 1988

Phys. Stat. Sol. (a)

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The specific heat of NdIn, in the temperature range 2.3 t o 27 K and in the magnetic field up to 5 T as well as the thermal expansion between 1.5 K and room temperature are measured. The low-temperature behaviour of NdIn, is governed by the energy gap in the spin wave spectrum. The specific heat at the antiferromagnetic transition reveals anomalously large critical exponents.It is shown that the specific heat anomaly a t T N contains contributions from two closely lying transitions. The influence of the magnetic field on the energy gap, on the first-order transitions found in the antiferromagnetic state, and on the NBel peak is studied. Thermal properties in the paramagnetic state are analyzed basing on the available CF data.An NdIn, werden im Temperaturbereich 2,3 bis 27 K und im Magnetfeldern bis 5 T die spezifische Warme und im Bereich zwischen 1,5 K und Raumtemperatur die thermische Ausdehnung gemessen. Das Tieftemperaturverhalten wird von einer Energieliicke im Spinwellenspektrum bestimmt. Die spezifische Warme wird in der N l h e der antiferromagnetischen Ordnung durch ungewohnlich hohe kritische Exponenten beschrieben. Es wird gezeigt, daO die Anomalie in der spezifischen Warme bei T N aus zwei nah beieinander liegenden Ubergangen besteht. Untersucht wird der EinfluB des Magnetfeldes auf die Energieliicke, die beiden ubergange 1. Art im antiferromagnetischen Ordnungszustand und auf den NBel-Peak. Die thermischen Eigenschaften im paramagnetischen Zustand werden auf der Grundlage der zur Verfiigung stehenden Kristollfeldparametern analysiert.

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“…The spatial ordering of higher-order multipoles of the lanthanide and actinide f-electron wavefunctions can be investigated directly by resonant X-ray scattering: neutrons do not directly couple to these f-electron quadrupolar interactions and so can only provide direct information on the magnetic dipolar ordering. TmGa 3 undergoes a first-order phase transition to an antiferroquadrupolar structure below T Q = 4.29 K, slightly before the onset of antiferromagnetism at T N = 3.26 K. (Czopnik et al, 1985;Morin et al, 1987). We have investigated these two phases using X-ray resonant scattering at XMaS.…”

Section: Lanthanide Magnetismmentioning

confidence: 99%

The XMaS beamline at ESRF: instrumental developments and high-resolution diffraction studies

Brown

Bouchenoire

Bowyer

et al. 2001

J Synchrotron Radiat

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The beamline, which is situated on a bending magnet at ESRF, comprises a unique combination of instrumentation for high-resolution and magnetic single-crystal diffraction. White-beam operation is possible, as well as focused and unfocused monochromatic modes. In addition to an eleven-axis Huber diffractometer, which facilitates simple operation in both vertical and horizontal scattering geometries, there is an in-vacuum polarization analyser and slit system, mirrors for harmonic rejection, sub 4.2 K and 1 Tesla magnetic field sample environment, plus a diamond phase plate for polarization conditioning. The instrumentation developed specifically for this beamline is described, and its use illustrated by recent scientific results.

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Magnetic and structural transitions in TmGa3

Cited by 22 publications

References 6 publications

Thermal Properties of TmGa₃

Thermal Properties of TmGa₃

Thermal properties of NdIn3

The XMaS beamline at ESRF: instrumental developments and high-resolution diffraction studies

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Magnetic and structural transitions in TmGa3

Cited by 22 publications

References 6 publications

Thermal Properties of TmGa3

Thermal Properties of TmGa3

Thermal properties of NdIn3

The XMaS beamline at ESRF: instrumental developments and high-resolution diffraction studies

Contact Info

Product

Resources

About

Thermal Properties of TmGa₃

Thermal Properties of TmGa₃