Resistivity and thermoelectric power of single crystals of semiconducting SmS between 1.5 and 350 K

Benbachir, K.; Mazuer, J.; Senateur, J.P.

doi:10.1016/0304-8853(87)90681-0

Cited by 7 publications

(2 citation statements)

References 10 publications

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“…Note that there is no indication of peak structure as reported previously. 12) We estimate the gap energy E RES g from the Arrhenius plot of the electrical resistivity, lnρ vs. E RES g /2k B T ; see upper panel of Fig. 3.…”

Section: Resultsmentioning

confidence: 99%

Thermoelectric Power Investigation on SmS

et al. 2011

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We construct a measurement system of the absolute thermoelectric power, and present experimental results of the Seebeck coefficient S (T, P) of samarium mono-sulphide (SmS) at ambient and high pressure. At ambient pressure, S (T ) of SmS exhibits negative sign and its absolute value |S | steeply increases with lowering temperature, indicating that the dominant charge carrier is an electron and the energy gap opens at Fermi level. When increasing pressure at room temperature, S (P) sharply changes from a negative to positive value at the black-to-golden phase transition, indicating that the dominant carrier changes from electrons to holes possibly associated with the discontinuous collapse of the band gap at the transition.

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Section: Resultsmentioning

confidence: 99%

Thermoelectric Power Investigation on SmS

et al. 2011

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“…In lanthanide based strongly correlated electron systems, the valence of lanthanide ion is known as one of the key parameters controlling physical properties, including transport and magnetism. SmS is a nonmagnetic semiconductor with an energy gap of ∼ 1000 K at ambient pressure [1,2]. SmS, which crystalizes in the NaCl structure with almost divalent Sm ions, undergoes an isostructural valence transition with first-order nature at a pressure of 0.65 GPa [3].…”

Section: Introductionmentioning

confidence: 99%

Pressure-induced Nonmagnetic–Magnetic Transition in SmS Observed by ³³S-NMR

Yoshida

Yamada

Koyama

et al. 2020

Proceedings of J-Physics 2019: International Conference on Multipole Physics and Related Phenomena

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Intermediate valence compound SmS, which undergoes a nonmagnetic-magnetic transition at P c ∼ 2 GPa, has been studied by nuclear magnetic resonance (NMR) measurements at 3.2 GPa. The use of 33 S-enriched sample enabled the application of NMR technique to the study of this compound, and the measurement at the pressure well above P c was achieved using a modified opposed-anvil high pressure cell. A temperature-dependent 33 S-NMR signal arising from the paramagnetic phase shifts to an almost temperature-independent signal below about 20 K. The appearance of the lowtemperature signal is in good agreement with the pressure-induced nonmagnetic-magnetic transition reported previously, indicating the new signal originates from the magnetically ordered (MO) phase. Hyperfine field at the S site is reduced in the MO phase, suggesting that the ordered structure in the MO phase is antiferromagnetic.

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