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, Ni-Mn-In

01.04.11 « »

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" 17 " 2012 . 16 . 501.001.70 .. : 119991 -1, , . 1, . 2, .. , , -. . .. . "___" 2012 .

501.001.70 - ,

..

2

. Ni-Mn, , , , , . , , , . , , , c . , . , , , , , , . . , , , .. . , , . , (), .. , [1]. : 30-60%, 10% [2]. 1997 . [3], 30% ,
3

Gd5(Si2Ge2) [4] , . , . , , , () . , , .. , . , . Ni-Mn-Z (Z = Ga, In, Sn) [5] «» . . , , . , , , . , , . , XIX . . , , -, ; -,

4

, , ; -, , , , . , , , , Ni-Mn-In , , . . , , Ni-Mn-In, . : 1. Ni-Mn-In, 4- , . 4- . 2. Ni-Mn-In, 4- . 3. , , Ni-Mn-In. . , : 1. , . 2. 1- , ,

5

, 2- . 2- , 1- . 3. ,

. 4. Ni-Mn-In , . 5. ,

. , .
.

, . , , . ( 50 ) . , . , .. . , , . . , ,

6

. . , , , , . . . . , 1- 2- 2 . , ~0,5 2- , 1- . , . . . 6 ( ): , «» (, 2011), Moscow International Symposium on Magnetism (, 2011), « » (, 2011), International Conference Electrodynamics of Complex Materials for Advanced Technologies PLASMETA (Samarkand, Uzbekistan, 2011), Recent Trends in Nanomagnetism, Spintronics and their Applications (Ordizia, Spain, 2011), (, 2011). . 13 , 5 . . 5 . . , , , .

7

. , 4- , 142 . 144 , 130 , 64 5 .

, , . : , . . Ni-Mn-In. Ni-Mn-In . () , () . , Ni-Mn-In. Ni-Mn-In, 4- . . . , . LakeShore 80 400 16 . MagEq MMS 801 AMT&C Group Ltd. 1,8 , 0,05 / 2 /, . , 6- , . .

8

. 3- Ni50Mn35In14X (X = In, Ge, Al). ZFC (zero-field-cooled) FC (field-cooling) . Ni-Mn . ZFC FC , , , . 300 . . - (T ( . 1. . 1. . ,K Ni50Mn35In
15 AM

TMA), )

(

).

T AM , K 287 293 290

T M A, K 298 307 306

,K 318 308 321

M, emu/g
56 44 32

210 215 205

Ni50Mn35In14Ge Ni50Mn35In14Al

4 : (T < ( ( < T < TMT, T
MT MT

), )

), (T

< T).

.

9

,

, . 80 ( ) . , T
MT

, .. ,

. T
MT

, Ni50Mn35In14X (X = In, Ge, Al). . , . (H) . , : 1. 2- (H) 2. , 2- 1- ; 3. 290 -- 330 (T), , (. . 2). , . 1- 2- . . 1 (H) 1- 2- Ni50Mn35In14Ge. (H), . . 1()
10

2-

/

;

2- . ,
/

(H).

4 (H),

1- , (. . 1), , , . 4 , , (H) ,
1,2

/

, 2- .
a)
0,0

)
-0,3

0,9

T [K]

0,6

T [K]

Ni50Mn35In14Ge
0,3

-0,6

T 312 K T(H) ~ H2/3
0 2 4 6 8 10 12 14 16 18 20

Ni50Mn35In14Ge
-0,9 0

T 307 K T(H) ~ H2/3
4 8 12 16 20

0,0

H []

H [ ]

. 1. Ni50Mn35In14Ge H 2- () 1- () . . S(H). S(H) 1- 2- , T(H). .. S , С . S(H) 2- , n < 1. S(H), , , 0,8.
/

[6]. [7]

11

, S(H) : , n=1+ , (1)

, n = 2/3.

. ,

S(H) ,

, , 1 %. , . = 0 ,3 6 3- = 2,8.

n = 0 ,7 9 . , , , 1- , 2- , ( 0,5 ), T. 2- , ,
( ) ( )

, .

, , . . 2. . ,K Ni50Mn35In
15

T M A, K 318 308 321 298 309 300 298 307 306

TA, K
-1,9 -1,5 -1,8

,K 1 ,9 1 ,4 1 ,7

321 312 320

Ni50Mn35In14Ge Ni50Mn35In14Al

(H), (T) . (T), . 280 , , 290 300 , .. . . ,

12

10 8

. , . (T) (T )
A

S [/( )]

6 4 2 0 -2 2 0

(

[K ]

(

T

-2 -4

)) ( TMA). . 2.
Ni50Mn35In15 Ni50Mn35In14Al Ni50Mn35In14Ge
290 300 310 320 330 340

-6 1,5 1,0 0,5

Tad [K]

0,0 -0,5 -1,0 -1,5 280

. . 2 , TMA),

T [K ]

. 2. : (.

(

, ( TMA).

)

,

3- . 10 .

. , : "# ( , ) $% , "

( , ) =

10 . . 2. . 2 , . , , .

&

!

(2)

13

, , . . , , [11]. . 2. , , , T (T ~1.5 Ni50Mn35In
15

T ~1

). . 4-6 . , , [12]. . , . . , , 1 / , 1,8 , ~0,5 . , ( 1 10 ) [12]. , , . Ni50Mn35In
15-xXx

(X = Si) Ni

50-xYxMn35

In

15

(Y =

Cu, Co). . . ZFC FC 80 < T < 400 15 . , , .

14

. . 3. Ni50Mn35In
15-xSix

(x = 1, 3, 4)

,

. , , . . Ni48Cu2Mn35In
15

, 80-100 , , . , [13]. , , , . Ni
50-xCoxMn35

In

15

(x = 1, 2) T M A,

(150 - 200 ),
AM

. T

. 3. Ni Ni50Mn35In
15-xSix

50-xCoxMn35

In

15

(x = 1, 2),

(x = 1, 3, 4) Ni48Cu2Mn35In15. ,K T AM , K 296 269 272 254 225 160 T M A, K 302 274 288 254 236 265 ,K 336 355 312 293 273 329

Ni49Co1Mn35In Ni48Co2Mn35In

15 15

191 150 213 225 -200

Ni50Mn35In14Si1 Ni50Mn35In12Si3 Ni50Mn35In11Si4 Ni48Cu2Mn35In
15

15

, , . , , 6- Ni48Co2Mn35In15. . . , . , ZFC . . 3 ZFC 20 , . , . , , n In . TM. TK, ZFC 158 K, , T < TK , , . , TK, . . , 4Ms/3, Ms .

, ,

16

1, 2 1, 0 0, 8 0, 6

2 ,5

ZFC, H = 20 FC, H = 20
2 ,0

ZFC, H = 50 FC, H = 50

1 ,5

M [e m u / ]

0, 4 0, 2 0, 0

M [ e mu / ]
80 120 160 200 240 280 320 360 400

1 ,0

0 ,5

-0,2 -0,4

0 ,0 80 120 160 200 240 280 320 360 400

T [K ]

T [ K]

. 3. ZFC FC Ni48Co2Mn35In15 20 50 . (, ), , , . , , . , ZFC . .

, . , , , , , . . , , , . , , .

17

, () 80 300 13 . 80 320 Ni
50-xCoxMn35

In

15

(x = 1, 2), Ni50Mn35In

15-xSix

(x = 1, 3, 4)

Ni48Cu2Mn35In15. 2-3 , , , , , . ( 300 *, 2 [14,15]), , . , . , . , . 1- , 2-3 ~ 50-120 *. . 80 300 . 1,4 . , . . , . , , . , , ,

18

, 13 %. . Ni48Co2Mn35In
15

(. . 4). . 4

. 3 : , . , (. 4, T = 295 ). . . ; .
5,0x10
80 8,0x10
-8

-7

1,0x10

-7

277 K
4,0x10
-7

295 K

R H [ * ]

6,0x10

-8

110
-8

3,0x10

-7

RH [*]

145

4,0x10

269 K
2,0x10
-7

268 K 267 K

2,0x10

-8

180 0,0 230 -2,0x10
-8

1,0x10

-7

266 K 263 K

0, 0
0 2 4 6 8 10 12 14 16

0

2

4

6

8

10

12

14

16

H []

H []

. 4. Ni48Co2Mn35In15. , , . . 4 , RH(H) . , , , . , RH(H) , .. . . 4 , 263 , 10 , , 10
19

. , , .. . , . , ,
-11

[*/]

[*/]

7,0x10 6,0x10 5,0x10 4,0x10 3,0x10

6,0x10

-11

Ni50Mn35In11Si

4

-11

-11

4,0x10

-11

-11

-11

Ni50Mn35In14Si

2,0x10

-11

1

2,0x10

-11

0,0

0,0
-12 -12

-4,0x10

-8,0x10

-4,0x10

-12

80 100 120 140 160 180 200 220 240 260 280 300 320

80

100 120 140 160 180 200 220 240 260 280 300

T [K]

T [K ]

.

5.

.

6.

Ni50Mn35In14Si1. Ni50Mn35In11Si4.

[*/]

6,0x10

-11

Ni50Mn35In12Si3

0,3

() ()

0,002

0,2

0,000

5,0x10

-11

0,1

-0,002

,

4,0x10

-11

0,0

-0,004

3,0x10 0,0 -2,0x10 -4,0x10 -6,0x10

-11

-0,1

-0,006

-12 -12 -12

-0,2
()

-0,008 80 100 120 140 160 180 200 220 240 260 280 300

80 100 120 140 160 180 200 220 240 260 280 300

T [K]

T [K]

. 7. ,

Ni50Mn35In12Si3.

20

, , . Ni50Mn35In14Si1, Ni50Mn35In12Si3, Ni50Mn35In11Si4 . 4 . 7, . , , 10-2, . , , , . , . , : . , , , , , . , . , . , : 2-3 , . . , : , , .

21

, , , . : , . , . , , Ni48Co2Mn35In15 , . , 5-10 , . , , , , , , .. . 277 , , , . . , , .

1. (H) . , 2- , 1- . ,

22

( 1 ). 2. (T) , , , 1,8 . 3. , 1- 4-6 . , . , . 4. . 5. 2-

( 50 ) . , .

6.

, . 80 . , , . . . , , .

7.

8.

23

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transitions in NiMnIn based Heusler alloys / A.P. Kazakov, V.N. Prudnikov, A.B. Granovsky, A.P. Zhukov, J. Gonzales, I. Dubenko, A.K. Pathak, S. Stadler, N. Ali // Applied Physics Letters. 2011. Vol. 98. P. 131911-3. 4. Magnetocaloric effect and multifunctional properties of Mn-based Heusler alloys /

I. Dubenko, T. Samanta, A.K. Pathak, A. Kazakov, V. Prudnikov, S. Stadler, A. Granovsky, A. Zhukov, N. Ali // Journal of Magnetism and Magnetic Materials, accepted, 2012, DOI: 10.1016/j.jmmm.2012.02.082. 5. Phase transitions, magnetotransport and magnetocaloric effects in a new family of

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A. Granovsky, V. Prudnikov, A. Kazakov, A. Zhukov, V. Zhukova, J. Gonzales, I. Dubenko // Proceedings of International Conference Electrodynamics of Complex Materials for Advanced Technologies PLASMETA'11. Samarkand, Uzbekistan. 21-26 September. P. 37. 9. Magnetocaloric effect and multifunctional properties of Mn-based Heusler alloys /

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24

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