TY - JOUR
T1 - Thermal conductivity of the one-dimensional S=1/2 antiferromagnet Yb 4(As1-xPx)3 (x = 0 and 0.3)
AU - Sanchez, A.
AU - Paschen, S.
AU - Wand, B.
AU - Aoki, Hayuyoshi
AU - Ochiai, A.
AU - Steglich, F.
PY - 2004/5/1
Y1 - 2004/5/1
N2 - The thermal conductivity κ of Yb4(As1-xP x)3 (x = 0 and 0.3) was measured in the temperature range between 0.1 and 7 K in applied magnetic fields up to 8 T. The fact that κ(7) follows, between 0.4 and 3 K, the relation aT + bT2 confirms our earlier interpretation of the dominating role of magnons both as heat carriers and as scatterers for the phonons. Above 1 K, κ decreases with increasing magnetic field, the opening of a gap in the magnon-excitation spectrum being a possible explanation of this behavior.
AB - The thermal conductivity κ of Yb4(As1-xP x)3 (x = 0 and 0.3) was measured in the temperature range between 0.1 and 7 K in applied magnetic fields up to 8 T. The fact that κ(7) follows, between 0.4 and 3 K, the relation aT + bT2 confirms our earlier interpretation of the dominating role of magnons both as heat carriers and as scatterers for the phonons. Above 1 K, κ decreases with increasing magnetic field, the opening of a gap in the magnon-excitation spectrum being a possible explanation of this behavior.
KW - Antiferromagnet
KW - Magnon
KW - Thermal conductivity
KW - YbAs
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U2 - 10.1016/j.jmmm.2003.11.345
DO - 10.1016/j.jmmm.2003.11.345
M3 - Article
AN - SCOPUS:23144461043
VL - 272-276
SP - e703-e705
JO - Journal of Magnetism and Magnetic Materials
JF - Journal of Magnetism and Magnetic Materials
SN - 0304-8853
IS - SUPPL. 1
ER -