Abstract
A giant magnetocaloric effect was found in MnAs, which undergoes a first-order ferromagnetic to paramagnetic transition at 318 K. The magnetic entropy change caused by a magnetic field of 5 T is as large as 30 J/K kg at the maximum value, which exceeds that of conventional magnetic refrigerant materials by a factor of 2-4. The adiabatic temperature change reaches 13 K in a field change of 5 T. The substitution of 10% Sb for As reduces the thermal hysteresis and lowers the Curie temperature to 280 K, while the giant magnetocaloric properties are retained.
| Original language | English |
|---|---|
| Pages (from-to) | 3302-3304 |
| Number of pages | 3 |
| Journal | Applied Physics Letters |
| Volume | 79 |
| Issue number | 20 |
| DOIs | |
| Publication status | Published - Nov 12 2001 |
| Externally published | Yes |
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All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)
Cite this
Giant magnetocaloric effect of MnAs1-xSbx. / Wada, H.; Tanabe, Y.
In: Applied Physics Letters, Vol. 79, No. 20, 12.11.2001, p. 3302-3304.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Giant magnetocaloric effect of MnAs1-xSbx
AU - Wada, H.
AU - Tanabe, Y.
PY - 2001/11/12
Y1 - 2001/11/12
N2 - A giant magnetocaloric effect was found in MnAs, which undergoes a first-order ferromagnetic to paramagnetic transition at 318 K. The magnetic entropy change caused by a magnetic field of 5 T is as large as 30 J/K kg at the maximum value, which exceeds that of conventional magnetic refrigerant materials by a factor of 2-4. The adiabatic temperature change reaches 13 K in a field change of 5 T. The substitution of 10% Sb for As reduces the thermal hysteresis and lowers the Curie temperature to 280 K, while the giant magnetocaloric properties are retained.
AB - A giant magnetocaloric effect was found in MnAs, which undergoes a first-order ferromagnetic to paramagnetic transition at 318 K. The magnetic entropy change caused by a magnetic field of 5 T is as large as 30 J/K kg at the maximum value, which exceeds that of conventional magnetic refrigerant materials by a factor of 2-4. The adiabatic temperature change reaches 13 K in a field change of 5 T. The substitution of 10% Sb for As reduces the thermal hysteresis and lowers the Curie temperature to 280 K, while the giant magnetocaloric properties are retained.
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U2 - 10.1063/1.1419048
DO - 10.1063/1.1419048
M3 - Article
AN - SCOPUS:0035851522
VL - 79
SP - 3302
EP - 3304
JO - Applied Physics Letters
JF - Applied Physics Letters
SN - 0003-6951
IS - 20
ER -