Magnetic order of Nd3+ in NdA103

Bartolomé, Fernando; Bartolomé, J.; Blasco, Javier

doi:10.1016/0304-8853(95)01238-9

Cited by 9 publications

(5 citation statements)

References 13 publications

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“…The theoretical curve obtained from our fit, with ⌬ g /k B ϭ27.15 K ͑dotted line͒, is also shown. us to determine ⌬ g NdM n /k B ϭ23Ϯ2 K. 38 Similar differences appear in other rare earths, for example, SmFeO 3 has ⌬ g SmFe /k B ϭ22.5 K, SmCrO 3 has ⌬ g SmCr /k B ϭ8 K, HoFeO 3 has ⌬ g HoFe /k B ϭ8 K, HoCrO 3 has ⌬ g HoCr /k B ϭ16 K, etc. ͑see Ref.…”

Section: Nd-cr Interactionmentioning

confidence: 76%

Specific heat and magnetic interactions inNdCrO3

Bartolomé

Castro

et al. 2000

Phys. Rev. B

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The specific heat of NdCrO 3 in the thermal range from 0.3 to 300 K is presented. The magnetic ordering of Cr ions at T N ϭ219Ϯ1 K is observed, as well as the spin reorientation transition ͑SRT͒ at T SRT ϭ34.2 Ϯ0.5 K. The specific heat of the isostructural nonmagnetic compound LaGaO 3 has been subtracted, allowing us to separate and quantify the different magnetic contributions to the specific heat in NdCrO 3. The exchange coupling constant for the Cr-Cr interaction is found to be ͉J Cr ͉/k B ϭ21.7͑7͒ K. The fitting of the Schottky contribution from the thermal depopulation of the Nd 3ϩ 4 I 9/2 ground multiplet allows us to propose a crystalfield energy-level scheme which is in agreement with the available neutron-scattering spectral lines. The intensity of the Nd-Cr magnetic interaction is obtained. Finally, we show that the strength of the Nd-Cr interaction in this compound is of the same order of magnitude as that found in other Nd orthoperovskites, namely, in NdFeO 3 , despite the different Zeeman splitting of the Nd ground doublet in both compounds.

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Section: Nd-cr Interactionmentioning

confidence: 76%

Specific heat and magnetic interactions inNdCrO3

Bartolomé

Castro

et al. 2000

Phys. Rev. B

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“…Inverse for each compound. It is urring at 50 K. The origin is minor magnetic impurity in an amount too small to be detected by -Weiss behavior are There is no evidence for magnetic n related rare-earth perovskite low temperatures if at all, for example T N = 0.93 K in NdAlO 3 [28]. …”

Section: A Major R Zone Axis [210] (Bottom Row) Experimentalmentioning

confidence: 90%

Structural and magnetic properties of RTiNO2 (R=Ce, Pr, Nd) perovskite nitride oxides

Porter

Huang

Cheng

et al. 2015

Journal of Solid State Chemistry

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“…For T below 4 K, c p (T ) was extrapolated by a Debye T 3 -law. However, the c p (T ) data by Bartolomé et al [17] clearly show the lambda peak due to the magnetic ordering of the Nd 3+ ground-state doublet at 0.93(1) K. This contributes R ln 2 to the entropy up to ca 6 K [17] and the corrected value should be S • (298.15 K) = 99.3(3) J mol…”

Section: Specific Heat Capacitymentioning

confidence: 94%

“…Specific heat data for LaAlO 3 are not known to us, but thermal conductivity data for LaAlO 3 were measured by Michael et al [14] and Morelli [15]. For the related NdAlO 3 there exist κ(T ) data [15] and c p (T ) data (7-420 K) [16] and around the magnetic ordering (0.2-6 K) [17].…”

Section: Introductionmentioning

confidence: 99%

Specific heat capacity and thermal conductivity of NdGaO₃and LaAlO₃single crystals at low temperatures

Schnelle

Fischer

Gmelin

2001

J. Phys. D: Appl. Phys.

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For single-crystalline samples of NdGaO3 and LaAlO3 the specific heat capacity cp(T) (temperature ranges 2.24-100 K and 4.35-350 K, respectively) and the thermal conductivity κ(T) (15-300 K) are determined. From an analysis of the specific heat capacity of NdGaO3 the crystalline electric field contribution and the high-temperature tail from the magnetic ordering are extracted. The thermodynamic standard values for enthalpy and entropy at 298.15 K are calculated: H° = 18.40(18) kJ mol-1, S° = 121.0(1.2) J mol-1 K-1 (NdGaO3); H° = 14.57(22) kJ mol-1, S° = 86.6(1.3) J mol-1 K-1 (LaAlO3). Significant contributions to the entropy from the magnetic ordering of the Nd3+ ions are included in the calculation. A recently published value of the standard entropy for the related NdAlO3 is re-evaluated (S° = 105.1(3) J mol-1 K-1) in this context. The thermal conductivity of NdGaO3 at low temperatures is limited by spin-wave scattering, while that of LaAlO3 in the same temperature range is lessened by the short phonon mean free path, which is due to the presence of twin domains.

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Magnetic order of Nd3+ in NdA103

Cited by 9 publications

References 13 publications

Specific heat and magnetic interactions inNdCrO3

Specific heat and magnetic interactions inNdCrO3

Structural and magnetic properties of RTiNO2 (R=Ce, Pr, Nd) perovskite nitride oxides

Specific heat capacity and thermal conductivity of NdGaO₃and LaAlO₃single crystals at low temperatures

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Magnetic order of Nd3+ in NdA103

Cited by 9 publications

References 13 publications

Specific heat and magnetic interactions inNdCrO3

Specific heat and magnetic interactions inNdCrO3

Structural and magnetic properties of RTiNO2 (R=Ce, Pr, Nd) perovskite nitride oxides

Specific heat capacity and thermal conductivity of NdGaO3and LaAlO3single crystals at low temperatures

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Product

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Specific heat capacity and thermal conductivity of NdGaO₃and LaAlO₃single crystals at low temperatures