The spatial distribution of dynamic nuclear spin polarization (DNP) has been investigated in a lateral all-semiconductor spin-injection device based on a (Ga,Mn)As/n+-GaAs spin-Esaki diode. The DNP induced by the hyperfine interaction has been probed via satellite peaks in non-local Hanle-type spin precession signals, indicating the recovery of electron spin polarization. A quantitative analysis using the self-consistent calculation reproduces the magnetic field position of the satellite peaks as a function of spin injection bias and injector-detector separation. The distance dependence of the Hanle curves reveals that the spin-lattice relaxation rather than the hyperfine interaction is the dominant mechanism of nuclear spin relaxation in the non-local region.

1.
X.
Lou
,
C.
Adelmann
,
S. A.
Crooker
,
E. S.
Garlid
,
J.
Zhang
,
K. S. M.
Reddy
,
S. D.
Flexner
,
C. J.
Palmstrøm
, and
P. A.
Crowell
,
Nat. Phys.
3
,
197
(
2007
).
2.
M.
Ciorga
,
A.
Einwanger
,
U.
Wurstbauer
,
D.
Schuh
,
W.
Wegscheider
, and
D.
Weiss
,
Phys. Rev. B
79
,
165321
(
2009
).
3.
T.
Valet
and
A.
Fert
,
Phys. Rev. B
48
,
7099
(
1993
).
4.
J.
Fabian
,
A.
Matos-Abiague
,
C.
Ertler
,
P.
Stano
, and
I.
Zutić
,
Acta Phys. Slovaca
57
,
565
(
2007
).
5.
G.
Dresselhaus
,
Phys. Rev.
100
,
580
(
1955
).
6.
Y. A.
Bychkov
and
E. I.
Rashba
,
J. Phys. C
17
,
6039
(
1984
).
7.
J.
Nitta
,
T.
Akazaki
,
H.
Takayanagi
, and
T.
Enoki
,
Phys. Rev. Lett.
78
,
1335
(
1997
).
8.
J.
Strand
,
B. D.
Schultz
,
A. F.
Isakovic
,
C. J.
Palmstrøm
, and
P. A.
Crowell
,
Phys. Rev. Lett.
91
,
036602
(
2003
).
9.
H.
Sanada
,
S.
Matsuzaka
,
K.
Morita
,
C. Y.
Hu
,
Y.
Ohno
, and
H.
Ohno
,
Phys. Rev. Lett.
94
,
097601
(
2005
).
10.
J.
Strand
,
X.
Lou
,
C.
Adelmann
,
B. D.
Schultz
,
A. F.
Isakovic
,
C. J.
Palmstrøm
, and
P. A.
Crowell
,
Phys. Rev. B
72
,
155308
(
2005
).
11.
G.
Salis
,
A.
Fuhrer
, and
S. F.
Alvarado
,
Phys. Rev. B
80
,
115332
(
2009
).
12.
M. K.
Chan
,
Q. O.
Hu
,
J.
Zhang
,
T.
Kondo
,
C. J.
Palmstrøm
, and
P. A.
Crowell
,
Phys. Rev. B
80
,
161206(R)
(
2009
).
13.
C.
Awo-Affouda
,
O. M. J.
van't Erve
,
G.
Kioseoglou
,
A. T.
Hanbicki
,
M.
Holub
,
C. H.
Li
, and
B. T.
Jonker
,
Appl. Phys. Lett.
94
,
102511
(
2009
).
14.
J.
Shiogai
,
M.
Ciorga
,
M.
Utz
,
D.
Schuh
,
T.
Arakawa
,
M.
Kohda
,
K.
Kobayashi
,
T.
Ono
,
W.
Wegscheider
,
D.
Weiss
, and
J.
Nitta
,
Appl. Phys. Lett.
101
,
212402
(
2012
).
15.
T.
Akiho
,
J.
Shan
,
H.-X.
Liu
,
K.-I.
Matsuda
,
M.
Yamamoto
, and
T.
Uemura
,
Phys. Rev. B
87
,
235205
(
2013
).
16.
M. I.
D'yakonov
and
V. I.
Perel'
,
Zh. Eksp. Teor. Fiz.
60
,
1954
(
1971
).
17.
N. J.
Harmon
,
T. A.
Peterson
,
C. C.
Geppert
,
S. J.
Patel
,
C. J.
Palmstrøm
,
P. A.
Crowell
, and
M. E.
Flatté
,
Phys. Rev. B
92
,
140201(R)
(
2015
).
18.
M.
Kohda
,
Y.
Ohno
,
K.
Takamura
,
F.
Matsukura
, and
H.
Ohno
,
Jpn. J. Appl. Phys., Part 2
40
,
L1274
(
2001
).
19.
E.
Johnston-Halperin
,
D.
Lofgreen
,
R. K.
Kawakami
,
D. K.
Young
,
L.
Coldren
,
A. C.
Gossard
, and
D. D.
Awschalom
,
Phys. Rev. B
65
,
041306
(
2002
).
20.
P.
Van Dorpe
,
Z.
Liu
,
W.
Van Roy
,
V. F.
Motsnyi
,
M.
Sawicki
,
G.
Borghs
, and
J.
De Boeck
,
Appl. Phys. Lett.
84
,
3495
(
2004
).
21.
M.
Johnson
and
R. H.
Silsbee
,
Phys. Rev. Lett.
55
,
1790
(
1985
).
22.
A.
Fert
and
H.
Jaffrès
,
Phys. Rev. B
64
,
184420
(
2001
).
23.
D.
Paget
,
G.
Lampel
,
B.
Sapoval
, and
V. I.
Safarov
,
Phys. Rev. B
15
,
5780
(
1977
).
24.
T.
Kuczmik
,
M.
Oltscher
,
A.
Bayer
,
D.
Schuh
,
D.
Bougeard
,
M.
Ciorga
, and
D.
Weiss
,
Phys. Rev. B
95
,
195315
(
2017
).
25.
D.
Paget
,
Phys. Rev. B
25
,
4444
(
1982
).
26.
H.
Ohno
,
A.
Shen
,
F.
Matsukura
,
A.
Oiwa
,
A.
Endo
,
S.
Katsumoto
, and
Y.
Iye
,
Appl. Phys. Lett.
69
,
363
(
1996
).
27.
R. I.
Dzhioev
,
K. V.
Kavokin
,
V. L.
Korenev
,
M. V.
Lazarev
,
B. Y.
Meltser
,
M. N.
Stepanova
,
B. P.
Zakharchenya
,
D.
Gammon
, and
D. S.
Katzer
,
Phys. Rev. B
66
,
245204
(
2002
).
You do not currently have access to this content.