Magnetic structure of TmCu2Ge2
Identifieur interne : 000146 ( Pascal/Checkpoint ); précédent : 000145; suivant : 000147Magnetic structure of TmCu2Ge2
Auteurs : B. Penc [Pologne] ; S. Gerischer [Allemagne] ; A. Hoser [Allemagne] ; A. Szytula [Pologne]Source :
- Journal of magnetism and magnetic materials [ 0304-8853 ] ; 2012.
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Abstract
TmCu2Ge2 compound crystallizes in the tetragonal ThCr2Si2-type crystal structure. The neutron diffraction reveals the presence of an incommensurate antiferromagnetic order below TN=2.5 K. The Tm magnetic moment of 5.0(1) μB at 0.47 K is parallel to the c-axis. The order is described by the propagation vector k=[kx, kx, 0], where kx=0.117(3). The increase of the values of the components kx near the Néel temperature is observed.
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<series><title level="j" type="main">Journal of magnetism and magnetic materials</title>
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<front><div type="abstract" xml:lang="en">TmCu<sub>2</sub>
Ge<sub>2</sub>
compound crystallizes in the tetragonal ThCr<sub>2</sub>
Si<sub>2</sub>
-type crystal structure. The neutron diffraction reveals the presence of an incommensurate antiferromagnetic order below T<sub>N</sub>
=2.5 K. The Tm magnetic moment of 5.0(1) μB at 0.47 K is parallel to the c-axis. The order is described by the propagation vector k=[k<sub>x</sub>
, k<sub>x</sub>
, 0], where k<sub>x</sub>
=0.117(3). The increase of the values of the components k<sub>x</sub>
near the Néel temperature is observed.</div>
</front>
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<fA08 i1="01" i2="1" l="ENG"><s1>Magnetic structure of TmCu<sub>2</sub>
Ge<sub>2</sub>
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<fA11 i1="01" i2="1"><s1>PENC (B.)</s1>
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<fA45><s0>20 ref.</s0>
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<fA60><s1>P</s1>
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<fA66 i1="01"><s0>NLD</s0>
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<fC01 i1="01" l="ENG"><s0>TmCu<sub>2</sub>
Ge<sub>2</sub>
compound crystallizes in the tetragonal ThCr<sub>2</sub>
Si<sub>2</sub>
-type crystal structure. The neutron diffraction reveals the presence of an incommensurate antiferromagnetic order below T<sub>N</sub>
=2.5 K. The Tm magnetic moment of 5.0(1) μB at 0.47 K is parallel to the c-axis. The order is described by the propagation vector k=[k<sub>x</sub>
, k<sub>x</sub>
, 0], where k<sub>x</sub>
=0.117(3). The increase of the values of the components k<sub>x</sub>
near the Néel temperature is observed.</s0>
</fC01>
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<s5>02</s5>
</fC03>
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<s5>02</s5>
</fC03>
<fC03 i1="02" i2="3" l="FRE"><s0>Structure cristalline</s0>
<s5>03</s5>
</fC03>
<fC03 i1="02" i2="3" l="ENG"><s0>Crystal structure</s0>
<s5>03</s5>
</fC03>
<fC03 i1="03" i2="3" l="FRE"><s0>Diffraction neutron</s0>
<s5>04</s5>
</fC03>
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<s5>04</s5>
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<fC03 i1="04" i2="3" l="FRE"><s0>Phase incommensurable</s0>
<s5>05</s5>
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<fC03 i1="04" i2="3" l="ENG"><s0>Incommensurate phases</s0>
<s5>05</s5>
</fC03>
<fC03 i1="05" i2="3" l="FRE"><s0>Antiferromagnétisme</s0>
<s5>06</s5>
</fC03>
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<s5>06</s5>
</fC03>
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<s5>07</s5>
</fC03>
<fC03 i1="06" i2="3" l="ENG"><s0>Magnetic moments</s0>
<s5>07</s5>
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<fC03 i1="07" i2="3" l="FRE"><s0>Point Néel</s0>
<s5>08</s5>
</fC03>
<fC03 i1="07" i2="3" l="ENG"><s0>Neel temperature</s0>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="3" l="FRE"><s0>Effet température</s0>
<s5>09</s5>
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<s5>09</s5>
</fC03>
<fC03 i1="09" i2="X" l="FRE"><s0>Cuivre Thulium Germaniure Mixte</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>11</s5>
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<fC03 i1="09" i2="X" l="ENG"><s0>Copper Thulium Germanides Mixed</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>11</s5>
</fC03>
<fC03 i1="09" i2="X" l="SPA"><s0>Mixto</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>11</s5>
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<fC03 i1="10" i2="3" l="FRE"><s0>Réseau quadratique</s0>
<s5>15</s5>
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<fC03 i1="10" i2="3" l="ENG"><s0>Tetragonal lattices</s0>
<s5>15</s5>
</fC03>
<fN21><s1>184</s1>
</fN21>
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