Crystal structure, magnetic properties, x-ray-photoemission-spectroscopy, and specific-heat measurements on Pr2BaO4 and PrBaO3

I. Felner; Y. Yeshurun; G. Hilscher; T. Holubar; G. Schaudy; U. Yaron; O. Cohen; Y. Wolfus; E. R. Yacoby; L. Klein; F. H. Potter; C. S. Rastomjee; R. G. Egdell

doi:10.1103/physrevb.46.9132

Crystal structure, magnetic properties, x-ray-photoemission-spectroscopy, and specific-heat measurements on Pr2BaO4 and PrBaO3

I. Felner, Y. Yeshurun, G. Hilscher, T. Holubar, G. Schaudy, U. Yaron, O. Cohen, Y. Wolfus, E. R. Yacoby, L. Klein, F. H. Potter, C. S. Rastomjee, R. G. Egdell

Department of Physics

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Abstract

We investigated Pr2BaO4 and PrBaO3 by several complementary experimental techniques. PrBaO3 crystallize in an orthorhombic structure. dc and ac susceptibility measurements exhibit irreversibility phenomena below TN=11.7 K and reveal the magnetic structure of PrBaO3, which consists of an antiferromagnetic ordering together with a small canting of the spins which produces the ferromagnetic component. Both magnetic and specific-heat studies show that TN is not affected by the applied magnetic field up to 9 T. Pr2BaO4 crystallizes in an orthorhombic structure where a=10.56, b=12.43, and c=3.617 belongs to Pnam space group. dc and ac susceptibility and specific-heat measurements show that Pr2BaO4 is paramagnetic down to 2 K, with a vanishing electronic specific-heat coefficient γ. X-ray photoemission spectroscopy shows that Pr is mainly trivalent in Pr2BaO4 and close to being tetravalent in PrBaO3. The pronounced ferromagnetic-like behavior found below 11.7 K in the PrxR1-xBa2Cu3Oz system is due to the impurity of PrBaO3.

Original language	English
Pages (from-to)	9132-9141
Number of pages	10
Journal	Physical Review B
Volume	46
Issue number	14
DOIs	https://doi.org/10.1103/physrevb.46.9132
State	Published - 1992

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Felner, I., Yeshurun, Y., Hilscher, G., Holubar, T., Schaudy, G., Yaron, U., Cohen, O., Wolfus, Y., Yacoby, E. R., Klein, L., Potter, F. H., Rastomjee, C. S., & Egdell, R. G. (1992). Crystal structure, magnetic properties, x-ray-photoemission-spectroscopy, and specific-heat measurements on Pr2BaO4 and PrBaO3. Physical Review B, 46(14), 9132-9141. https://doi.org/10.1103/physrevb.46.9132

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title = "Crystal structure, magnetic properties, x-ray-photoemission-spectroscopy, and specific-heat measurements on Pr2BaO4 and PrBaO3",

abstract = "We investigated Pr2BaO4 and PrBaO3 by several complementary experimental techniques. PrBaO3 crystallize in an orthorhombic structure. dc and ac susceptibility measurements exhibit irreversibility phenomena below TN=11.7 K and reveal the magnetic structure of PrBaO3, which consists of an antiferromagnetic ordering together with a small canting of the spins which produces the ferromagnetic component. Both magnetic and specific-heat studies show that TN is not affected by the applied magnetic field up to 9 T. Pr2BaO4 crystallizes in an orthorhombic structure where a=10.56, b=12.43, and c=3.617 belongs to Pnam space group. dc and ac susceptibility and specific-heat measurements show that Pr2BaO4 is paramagnetic down to 2 K, with a vanishing electronic specific-heat coefficient γ. X-ray photoemission spectroscopy shows that Pr is mainly trivalent in Pr2BaO4 and close to being tetravalent in PrBaO3. The pronounced ferromagnetic-like behavior found below 11.7 K in the PrxR1-xBa2Cu3Oz system is due to the impurity of PrBaO3.",

author = "I. Felner and Y. Yeshurun and G. Hilscher and T. Holubar and G. Schaudy and U. Yaron and O. Cohen and Y. Wolfus and Yacoby, {E. R.} and L. Klein and Potter, {F. H.} and Rastomjee, {C. S.} and Egdell, {R. G.}",

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doi = "10.1103/physrevb.46.9132",

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Felner, I, Yeshurun, Y, Hilscher, G, Holubar, T, Schaudy, G, Yaron, U, Cohen, O, Wolfus, Y, Yacoby, ER, Klein, L, Potter, FH, Rastomjee, CS & Egdell, RG 1992, 'Crystal structure, magnetic properties, x-ray-photoemission-spectroscopy, and specific-heat measurements on Pr2BaO4 and PrBaO3', Physical Review B, vol. 46, no. 14, pp. 9132-9141. https://doi.org/10.1103/physrevb.46.9132

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T1 - Crystal structure, magnetic properties, x-ray-photoemission-spectroscopy, and specific-heat measurements on Pr2BaO4 and PrBaO3

AU - Felner, I.

AU - Yeshurun, Y.

AU - Hilscher, G.

AU - Holubar, T.

AU - Schaudy, G.

AU - Yaron, U.

AU - Cohen, O.

AU - Wolfus, Y.

AU - Yacoby, E. R.

AU - Klein, L.

AU - Potter, F. H.

AU - Rastomjee, C. S.

AU - Egdell, R. G.

PY - 1992

Y1 - 1992

N2 - We investigated Pr2BaO4 and PrBaO3 by several complementary experimental techniques. PrBaO3 crystallize in an orthorhombic structure. dc and ac susceptibility measurements exhibit irreversibility phenomena below TN=11.7 K and reveal the magnetic structure of PrBaO3, which consists of an antiferromagnetic ordering together with a small canting of the spins which produces the ferromagnetic component. Both magnetic and specific-heat studies show that TN is not affected by the applied magnetic field up to 9 T. Pr2BaO4 crystallizes in an orthorhombic structure where a=10.56, b=12.43, and c=3.617 belongs to Pnam space group. dc and ac susceptibility and specific-heat measurements show that Pr2BaO4 is paramagnetic down to 2 K, with a vanishing electronic specific-heat coefficient γ. X-ray photoemission spectroscopy shows that Pr is mainly trivalent in Pr2BaO4 and close to being tetravalent in PrBaO3. The pronounced ferromagnetic-like behavior found below 11.7 K in the PrxR1-xBa2Cu3Oz system is due to the impurity of PrBaO3.

AB - We investigated Pr2BaO4 and PrBaO3 by several complementary experimental techniques. PrBaO3 crystallize in an orthorhombic structure. dc and ac susceptibility measurements exhibit irreversibility phenomena below TN=11.7 K and reveal the magnetic structure of PrBaO3, which consists of an antiferromagnetic ordering together with a small canting of the spins which produces the ferromagnetic component. Both magnetic and specific-heat studies show that TN is not affected by the applied magnetic field up to 9 T. Pr2BaO4 crystallizes in an orthorhombic structure where a=10.56, b=12.43, and c=3.617 belongs to Pnam space group. dc and ac susceptibility and specific-heat measurements show that Pr2BaO4 is paramagnetic down to 2 K, with a vanishing electronic specific-heat coefficient γ. X-ray photoemission spectroscopy shows that Pr is mainly trivalent in Pr2BaO4 and close to being tetravalent in PrBaO3. The pronounced ferromagnetic-like behavior found below 11.7 K in the PrxR1-xBa2Cu3Oz system is due to the impurity of PrBaO3.

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JO - Physical Review B

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Crystal structure, magnetic properties, x-ray-photoemission-spectroscopy, and specific-heat measurements on Pr2BaO4 and PrBaO3

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