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		<doi>10.1103/PhysRevB.81.184428</doi>
		<issn>1539-3755</issn>
		<citationkey>DiazGrAbToLeSpBa:2010:MaOrTr</citationkey>
		<title>Magnetic ordering and transitions of EuSe studied by x-ray diffraction</title>
		<year>2010</year>
		<month>May</month>
		<secondarytype>PRE PI</secondarytype>
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		<size>492 KiB</size>
		<author>Diaz, B.,</author>
		<author>Granado, Eduardo,</author>
		<author>Abramof, Eduardo,</author>
		<author>Torres, L.,</author>
		<author>Lechner, R. T.,</author>
		<author>Springholz, G.,</author>
		<author>Bauer, G.,</author>
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		<group>LAS-CTE-INPE-MCT-BR</group>
		<affiliation>Lab Nacl Luz Sincrotron, Caixa Postal 6192, BR-13083970 Campinas, SP, Brazil.</affiliation>
		<affiliation>Univ Estadual Campinas, UNICAMP, Inst Fis Gleb Wataghin, BR-13083970 Campinas, SP, Brazil</affiliation>
		<affiliation>Instituto Nacional de Pesquisas Espaciais (INPE)</affiliation>
		<affiliation>Lab Nacl Luz Sincrotron, BR-13083970 Campinas, SP Brazil</affiliation>
		<affiliation>Johannes Kepler Univ Linz, Inst Halbleiterphys, A-4040 Linz, Austria.</affiliation>
		<affiliation>Johannes Kepler Univ Linz, Inst Halbleiterphys, A-4040 Linz, Austria</affiliation>
		<affiliation>Johannes Kepler Univ Linz, Inst Halbleiterphys, A-4040 Linz, Austria.</affiliation>
		<journal>Physical Review E</journal>
		<volume>81</volume>
		<number>18</number>
		<pages>184 - 428</pages>
		<secondarymark>A2_ENGENHARIAS_II A1_ENGENHARIAS_III B1_ENGENHARIAS_IV C_ENSINO_DE_CIÊNCIAS_E_MATEMATICA A1_GEOCIÊNCIAS A1_INTERDISCIPLINAR A2_MATEMÁTICA_/_PROBABILIDADE_E_ESTATÍSTICA A1_MATERIAIS A2_MEDICINA_II A2_QUÍMICA</secondarymark>
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		<contenttype>External Contribution</contenttype>
		<keywords>antiferromagnetic phase, neutron-diffraction, europium selenide, pressure.</keywords>
		<abstract>The magnetic phase diagram and thermal expansion of EuSe is revisited using a high-quality 3200-angstrom-thick epitaxial film grown over a (111)BaF2 substrate. Resonant magnetic x-ray diffraction experiments reveal a highly hysteretic magnetic phase diagram between 1.8 and T-N similar to 4.7 K, in which two antiferromagnetic phases with propagation vectors (k) over right arrow (I)=[(1)/(4), (1)/(4),-(1)/(4)] (represented by up arrow up arrow down arrow down arrow) and (k) over right arrow (II)=[(1)/(2),(1)/(2),-(1)/(2)](up down arrow up down arrow) are observed. In addition, a defective phase with (k) over right arrow (III)=[h, h, -h]((1)/(4)<h<(1)/(3)) competes with the up arrow up arrow down arrow down arrow phase. Details of the temperature dependence of (k) over right arrow (III) and corresponding peak widths indicate this phase is intermediate between up arrow up arrow down arrow down arrow (h=(1)/(4)) and an ideal ferrimagnetic up arrow up arrow down arrow phase (h=(1)/(3)), and may be represented by (n x up arrow up arrow down arrow+down arrow), with mean n values between 7 and 2. High-resolution x-ray diffraction experiments show unit-cell hysteretic distortions that correlate with the transitions to the different magnetic phases existing below T-N.</abstract>
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		<language>en</language>
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