Diluted ferromagnetic semiconductor (LaCa)(ZnMn)SbO isostructural to “1111” type iron pnictide superconductors
We report discovery of ferromagnetism in (LaCa)(ZnMn)SbO isostructural to the well-studied iron-based superconductor LaFeAs(O 1− x F x ). Spin is induced by partial substitution of Mn 2+ for Zn 2+ , while charge is induced by substitution of Ca 2+ for La 3+ within the parent compound LaZnSbO. Ferrom...
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| Veröffentlicht in: | Science China. Physics, mechanics & astronomy mechanics & astronomy, 2013-11, Vol.56 (11), p.2026-2030 |
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| Hauptverfasser: | , , , , , , , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | We report discovery of ferromagnetism in (LaCa)(ZnMn)SbO isostructural to the well-studied iron-based superconductor LaFeAs(O
1−
x
F
x
). Spin is induced by partial substitution of Mn
2+
for Zn
2+
, while charge is induced by substitution of Ca
2+
for La
3+
within the parent compound LaZnSbO. Ferromagnetism with Curie temperature (
T
C
) is observed up to 40 K at the spin doping 0.15 by introducing Mn
2+
into the Zn
2+
sites for (La
0.95
Ca
0.05
)(Zn
1−
x
Mn
x
)SbO. The Hall coefficient measurement indicates
p
-type carrier for (La
0.95
Ca
0.05
)(Zn
0.9
Mn
0.1
)SbO with concentration of
n
∼10
20
cm
−3
showing anomalous Hall effect below
T
C
. |
|---|---|
| ISSN: | 1674-7348 1869-1927 |
| DOI: | 10.1007/s11433-013-5320-1 |