Systematic study of insulator-metal transitions in perovskites RNiO3 (R=Pr,Nd,Sm,Eu) due to closing of charge-transfer gap

Torrance, J. B.; Lacorre, P.; Nazzal, A. I.; Ansaldo, Eduardo J.; Niedermayer, Ch.

doi:10.1103/physrevb.45.8209

Cited by 1,000 publications

(779 citation statements)

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“…Generally, it requires oxide reaction above 1000 o C u nder exce ss ive o xy gen p ress ure o f abo ut 2 00 bars du ri ng several days [5][6][7]. Several studies have been reported also on the dynamics of the plasma plume generated by PLD of complex oxides in a background gas [8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

The influence of plasma dynamics on the growth of Sm0.55Nd0.45NiO3 solid solution during pulsed laser deposition

Ngom¹,

Lafane²,

Dioum³

et al. 2011

Journal of Physics and Chemistry of Solids

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Abstract.We report on the presence of an interesting cross-correlation among the deposition parameters which are usually overlooked in the usual empirical approach used by pulsed laser deposition growers. The fast intensified-charge-coupled-device (ICCD) photography imaging studies of the plasma generated by the KrF excimer laser ablation o f Sm 1-x Nd X NiO 3 at x= 0.45 in the presence of oxygen background gases at different pressures i s r e p o r t e d . T h e e x p e r i m e n t a l l y d e t e r m i n e d b e h a v i o u r s a r e c o m p a r e d w i t h t h epredictions of an analytical model which gives a complete description of the expansion of the plume and with some recent results reported in the literature. Evidence of the strong influence of the expansion plasma regime was found which showed that it is not simply related to the overall reactive gas content. Our findings demonstrate that the optimization of the pulsed laser deposition parameters, such as gas pressure, should be perfo rmed a lso ta ki ng i n to acco u nt th e ch em ical p ress ure ind uc ed by t he s ubs tra te nature. The analysis of the experimental results allowed us to estimate the average deposition oxygen pressure for Sm 0.55 Nd 0.45 NiO 3 in the typical range used for Pulsed Laser Deposition (PLD) of complex oxides, showing that the higher is the deposition pressure, the better the crystallinity.

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Section: Introductionmentioning

confidence: 99%

The influence of plasma dynamics on the growth of Sm0.55Nd0.45NiO3 solid solution during pulsed laser deposition

Ngom¹,

Lafane²,

Dioum³

et al. 2011

Journal of Physics and Chemistry of Solids

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“…At low temperatures La−Ni−O system undergoes metal−to−insulator transition 7 as a function of its thickness. This happens due to electron correlation, band effect and also by spin, orbital and charge ordering.…”

Section: Introductionmentioning

confidence: 99%

Electronic and Magnetic Structures of Hole Doped Trilayer La_4–xSr_xNi₃O₈from First-Principles Calculations

et al. 2016

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“…Bulk LNO is the only member in the ReNiO 3 series (Re: La, Pr, Nd,...etc.) that remains metallic at all temperatures 1,10 . As a result, thin film LNO and LNO-based heterostructures have been studied under various strained conditions to control the correlation strength and the metalinsulator phase transition [11][12][13][14] in an effort to find possible high temperature superconductivity 15 and conductivity enhancement 16 .…”

mentioning

confidence: 99%

Electronic structure and orbital polarization of LaNiO3with a reduced coordination and under strain: A first-principles study

Han

Veenendaal

2011

Phys. Rev. B

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First-principles density functional theory calculations have been performed to understand the electronic structure and orbital polarization of LaNiO3 with a reduced coordination and under strain. From the slab calculation to simulate [001] surface, it is found that d 3z 2 −r 2 orbital occupation is significantly enhanced relative to d x 2 −y 2 occupation owing to the reduced coordination along the perpendicular direction to the sample plane. Furthermore, the sign of the orbital polarization does not change under external strain. The results are discussed in comparison to the bulk and heterostructure cases, which sheds new light on the understanding of the available experimental data.

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Systematic study of insulator-metal transitions in perovskites RNiO3 (R=Pr,Nd,Sm,Eu) due to closing of charge-transfer gap

Cited by 1,000 publications

References 21 publications

The influence of plasma dynamics on the growth of Sm0.55Nd0.45NiO3 solid solution during pulsed laser deposition

The influence of plasma dynamics on the growth of Sm0.55Nd0.45NiO3 solid solution during pulsed laser deposition

Electronic and Magnetic Structures of Hole Doped Trilayer La_4–xSr_xNi₃O₈from First-Principles Calculations

Electronic structure and orbital polarization of LaNiO3with a reduced coordination and under strain: A first-principles study

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Systematic study of insulator-metal transitions in perovskites RNiO3 (R=Pr,Nd,Sm,Eu) due to closing of charge-transfer gap

Cited by 1,000 publications

References 21 publications

The influence of plasma dynamics on the growth of Sm0.55Nd0.45NiO3 solid solution during pulsed laser deposition

The influence of plasma dynamics on the growth of Sm0.55Nd0.45NiO3 solid solution during pulsed laser deposition

Electronic and Magnetic Structures of Hole Doped Trilayer La4–xSrxNi3O8from First-Principles Calculations

Electronic structure and orbital polarization of LaNiO3with a reduced coordination and under strain: A first-principles study

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Electronic and Magnetic Structures of Hole Doped Trilayer La_4–xSr_xNi₃O₈from First-Principles Calculations