TY - JOUR
T1 - Specific heat of EuIn2P2 at high magnetic fields
AU - Hidaka, Hiroyuki
AU - Ikeda, Yoichi
AU - Kawasaki, Ikuto
AU - Yanagisawa, Tatsuya
AU - Amitsuka, Hiroshi
N1 - Funding Information:
This research was partially supported by the Ministry of Education, Science, Sports and Culture, Japan, Grant-in-Aid for Scientific Research (B), 19340086 (2007).
PY - 2009/10/15
Y1 - 2009/10/15
N2 - We have carried out specific heat measurements on EuIn2P2 at high magnetic fields perpendicular to the c-axis in the hexagonal crystal structure in order to understand its thermal properties. The temperature dependence of the specific heat exhibits a clear λ-type anomaly due to a magnetic transition at TC = 24 K, indicating that the magnetic transition is of second-order. The λ-type anomaly becomes markedly broader with increasing the magnetic field. This remarkable field-dependence is consistent with the results of previous magnetization measurements which suggest that Eu2 + magnetic moments align ferromagnetically perpendicular to the c-axis below TC. In addition, a hump in the specific heat is observed around 7 K, which can be ascribed to the Zeeman splitting of the Eu2 + multiplet by internal magnetic fields.
AB - We have carried out specific heat measurements on EuIn2P2 at high magnetic fields perpendicular to the c-axis in the hexagonal crystal structure in order to understand its thermal properties. The temperature dependence of the specific heat exhibits a clear λ-type anomaly due to a magnetic transition at TC = 24 K, indicating that the magnetic transition is of second-order. The λ-type anomaly becomes markedly broader with increasing the magnetic field. This remarkable field-dependence is consistent with the results of previous magnetization measurements which suggest that Eu2 + magnetic moments align ferromagnetically perpendicular to the c-axis below TC. In addition, a hump in the specific heat is observed around 7 K, which can be ascribed to the Zeeman splitting of the Eu2 + multiplet by internal magnetic fields.
KW - Eu multiplet
KW - EuInP
KW - Specific heat
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U2 - 10.1016/j.physb.2009.07.027
DO - 10.1016/j.physb.2009.07.027
M3 - Article
AN - SCOPUS:70349102905
VL - 404
SP - 3005
EP - 3007
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
SN - 0921-4526
IS - 19
ER -