TY - GEN
T1 - Anomalous Nernst effect in L10 type Mn-Ga alloy thin films
AU - Mizuguchi, M.
AU - Inoue, M.
AU - Mizukami, S.
AU - Takanashi, K.
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/7/14
Y1 - 2015/7/14
N2 - L10 type MnGa alloy is attracting attention as materials to be applied to spintronic devices since they generally show large magnetic anisotropy, small saturation magnetization, and small Gilbert damping constant. It is known that an L10 type MnGa alloy thin film keeps large magnetic anisot-ropy with the increase of the Mn-composition even though saturation magnetization decreases[1]. Thus, it is interesting to investigate various magnetic properties of this alloy-system. On the other hand, 'spin-caloritronics', which deals with a relationship between spin current and heat current, is getting an attracting research field[2]. Previously, we studied a thermomagnetic phenomenon, that is, anomalous Nernst effect (ANE), of L10 type FePt alloy thin films, and evaluated anomalous Nernst coefficient and anomalous Nernst angle of the FePt thin film[3]. Besides, a new-type of thermopile device using ANE was proposed to show a potential of ANE-based thermoelectric applications[4]. In this paper, ANE of epitaxial Mnx-Ga1-x thin films with varied Mn-compositions (x) within the L10 composition range was systematically studied to explore their thermomagnetic characteristics. Moreover, anomalous Hall effects (AHE) of the films were investigated to understand the correlation of the two effects in L1 type Mn-Ga thin films.
AB - L10 type MnGa alloy is attracting attention as materials to be applied to spintronic devices since they generally show large magnetic anisotropy, small saturation magnetization, and small Gilbert damping constant. It is known that an L10 type MnGa alloy thin film keeps large magnetic anisot-ropy with the increase of the Mn-composition even though saturation magnetization decreases[1]. Thus, it is interesting to investigate various magnetic properties of this alloy-system. On the other hand, 'spin-caloritronics', which deals with a relationship between spin current and heat current, is getting an attracting research field[2]. Previously, we studied a thermomagnetic phenomenon, that is, anomalous Nernst effect (ANE), of L10 type FePt alloy thin films, and evaluated anomalous Nernst coefficient and anomalous Nernst angle of the FePt thin film[3]. Besides, a new-type of thermopile device using ANE was proposed to show a potential of ANE-based thermoelectric applications[4]. In this paper, ANE of epitaxial Mnx-Ga1-x thin films with varied Mn-compositions (x) within the L10 composition range was systematically studied to explore their thermomagnetic characteristics. Moreover, anomalous Hall effects (AHE) of the films were investigated to understand the correlation of the two effects in L1 type Mn-Ga thin films.
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U2 - 10.1109/INTMAG.2015.7157458
DO - 10.1109/INTMAG.2015.7157458
M3 - Conference contribution
AN - SCOPUS:84942455965
T3 - 2015 IEEE International Magnetics Conference, INTERMAG 2015
BT - 2015 IEEE International Magnetics Conference, INTERMAG 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2015 IEEE International Magnetics Conference, INTERMAG 2015
Y2 - 11 May 2015 through 15 May 2015
ER -