Magnetic shape memory effect or magnetically induced structure reorientation (MIR) occurred down to 1.7 K in 10 M martensite with composition of Ni50.0Mn27.5Ga22.5 exhibiting no intermartensite transformation. The reorientation of the martensite microstructure was mediated by the motion of single Type II twin boundary. In contrast with weak thermal dependence of Type II boundary, MIR with Type I boundary in the same alloy showed strong thermal dependence resembling normal thermal activation process and the effect disappeared below 220 K. Thus the type of the boundary is decisive for MIR at low temperatures.

1.
K.
Ullakko
,
J. K.
Huang
,
C.
Kantner
,
R. C.
O'Handley
, and
V. V.
Kokorin
,
Appl. Phys. Lett.
69
,
1966
(
1996
).
2.
O.
Heczko
,
A.
Sozinov
, and
K.
Ullakko
,
IEEE Trans. Mag.
36
,
3266
(
2000
).
3.
A.
Sozinov
,
A. A.
Likhachev
,
N.
Lanska
, and
K.
Ullakko
,
Appl. Phys. Lett.
80
,
1746
(
2002
).
4.
A.
Sozinov
,
N.
Lanska
,
A.
Soroka
, and
W.
Zou
,
Appl. Phys. Lett.
102
,
021902
(
2013
).
5.
A. A.
Likhachev
,
A.
Sozinov
, and
K.
Ullakko
,
Mech. Mater.
38
,
551
(
2006
).
6.
O.
Heczko
,
J. Magn. Magn. Mater.
290–291
,
787
(
2005
).
7.
H. E.
Karaca
,
I.
Karaman
,
B.
Basaran
,
Y. I.
Chumlyakov
, and
H. J.
Maier
,
Acta Mater.
54
,
233
(
2006
).
8.
N.
Okamoto
,
T.
Fukuda
, and
T.
Kakeshita
,
Mater. Sci. Eng. A
481–482
,
306
(
2008
).
9.
L.
Straka
and
O.
Heczko
,
IEEE Trans. Mag.
39
,
3402
(
2003
).
10.
O.
Heczko
and
L.
Straka
,
J. Appl. Phys.
94
,
7139
(
2003
).
11.
N.
Okamoto
,
T.
Fukuda
, and
T.
Kakeshita
,
J. Phys. Conf. Ser.
51
,
315
(
2006
).
12.
L.
Straka
,
H.
Hanninen
, and
O.
Heczko
,
Appl. Phys. Lett.
98
,
141902
(
2011
).
13.
L.
Straka
,
A.
Soroka
,
H.
Seiner
,
H.
Hänninen
, and
A.
Sozinov
,
Scr. Mater.
67
,
25
(
2012
).
14.
J.
Pons
,
V. A.
Chernenko
,
R.
Santamarta
, and
E.
Cesari
,
Acta Mater.
48
,
3027
(
2000
).
15.
A.
Sozinov
,
N.
Lanska
,
A.
Soroka
, and
L.
Straka
,
Appl. Phys. Lett.
99
,
124103
(
2011
).
16.
M.
Matsuda
,
Y.
Yasumoto
,
K.
Hashimoto
,
T.
Hara
, and
M.
Nishida
,
Mater. Trans.
53
,
902
(
2012
).
17.
L.
Straka
,
O.
Heczko
,
H.
Seiner
,
N.
Lanska
,
J.
Drahokoupil
,
A.
Soroka
,
S.
Fahler
,
H.
Hanninen
, and
A.
Sozinov
,
Acta Mater.
59
,
7450
(
2011
);
O.
Heczko
,
L.
Straka
, and
H.
Seiner
, “Differently mobile twin boundaries and magnetic shape memory effect in 10 M martensite of Ni–Mn–Ga,”
Mater. Res. Bull.
(in press).
18.
R. C.
Pond
,
B.
Muntifering
, and
P.
Müllner
,
Acta Mater
60
,
3976
(
2012
).
19.
E.
Faran
and
D.
Shilo
,
Appl. Phys. Lett.
100
,
151901
(
2012
).
20.
L.
Straka
,
N.
Lanska
,
K.
Ullakko
, and
A.
Sozinov
,
Appl. Phys. Lett.
96
,
131903
(
2010
).
21.
D.
Kellis
,
A.
Smith
,
K.
Ullakko
, and
P.
Müllner
,
J. Cryst. Growth
359
,
64
(
2012
).
22.
L.
Straka
,
L. H.
Hänninen
,
A.
Soroka
, and
A.
Sozinov
,
J. Phys.: Conf. Ser.
303
,
012079
(
2011
).
23.
L.
Straka
,
A.
Sozinov
,
J.
Drahokoupil
,
V.
Kopecký
,
H.
Hänninen
, and
O.
Heczko
,
J. Appl. Phys.
114
,
063504
(
2013
).
24.
O.
Heczko
,
L.
Straka
,
I.
Aaltio
, and
S.-P.
Hannula
,
Mater. Sci. Eng. A
481–482
,
283
(
2008
).
25.
E.
Faran
and
D.
Shilo
,
J. Mech. Phys. Solids
59
,
975
(
2011
).
26.
G. B.
Olson
and
M.
Cohen
,
Dislocations in Solids
, edited by
F. R. N.
Nabarro
(
North-Holland
,
Amsterdam
,
1986
), Vol.
7
, p.
295
.
27.
V. G.
Gavriljuk
,
O.
Söderberg
,
V. V.
Bliznuk
,
N. I.
Glavatska
, and
V. K.
Lindroos
,
Scr. Mater.
49
,
803
(
2003
).
28.
Z.
Peng
,
X.
Jin
,
T. Y.
Hsu
, and
E.
Pagounis
,
Mater. Sci. Eng., A
481–482
,
310
(
2008
).
29.
N.
Lanska
,
O.
Soderberg
,
A.
Sozinov
,
Y.
Ge
,
K.
Ullakko
, and
V. K.
Lindroos
,
J. Appl. Phys.
95
,
8074
(
2004
).
30.
K.
Bhattacharya
,
Microstructure of Martensite
(
Oxford University Press
,
New York
,
2003
), p.
35
.
31.
O.
Heczko
,
L.
Straka
, and
H.
Seiner
,
Acta Mater.
61
,
622
(
2013
).
32.
H.
Seiner
,
L.
Straka
, and
O.
Heczko
, “Mobility of macro-twin interfaces in thermoelastic martensites: A general microstructural model and its application to Ni-Mn-Ga 10M martensite,”
J. Mech. Phys. Solids
(submitted).
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