carrier density of the high tc and hydrogen doped samples measured by the high magnetic field
DESCRIPTION
Carrier density of the high Tc and hydrogen doped samples measured by the high magnetic field. Annealed sample. Tc~175K. Tc~165K. Fit Function: Rxy=R 0 B+C Rxx n. High Tc sample Mn437 @2K n=1 p=1.87438E+21cm -3 n=2 p=1.76279E+21cm -3 Hydrogen sample Mn450 @2K - PowerPoint PPT PresentationTRANSCRIPT
Annealed sample
-15 -10 -5 0 5 10 15-30
-20
-10
0
10
20
30Mn437 12%Mn [1-10] Ann
2K 4K 10K
Rxy
/
B/T
-15 -10 -5 0 5 10 15-30
-20
-10
0
10
20
30Mn450 12%Mn hydrogen [110] Ann
2K 4K 10K
Rxy
/
B/T
-15 -10 -5 0 5 10 154480
4500
4520
4540
4560
4580
4600 2K 4K 10K
R
xx/
B/T
Mn437 12%Mn [1-10] Ann
-15 -10 -5 0 5 10 154880
4900
4920
4940
4960
4980
5000
5020
5040Mn450 12%Mn hydrogen [110] Ann
B/T
2K 4K 10K
Rxx
/
Tc~175K
Tc~165K
-14 -12 -10 -8 -6 -4 -2 0 2
-26.0
-25.5
-25.0
-24.5
-24.0 Rxy n=1 n=2
Rxy
B/T
High Tc sample Mn437 @2K n=1 p=1.87438E+21cm-3
n=2 p=1.76279E+21cm-3
Hydrogen sample Mn450 @2K n=1 p=1.44406E+21cm-3 n=2 p=1.40408E+21cm-3
High Tc sample Mn437 @10K n=1 p=1.9164E+21cm-3 n=2 p=1.78552E+21cm-3
Hydrogen sample Mn450 @10K n=1 p=1.49987E+21cm-3 n=2 p=1.43796E+21cm-3
-14 -12 -10 -8 -6 -4
-26
-24
Data: A2kup1_GModel: hall Equation: Rxy=R0*B+C*Rxx^n n=2Weighting:Rxy No weighting Chi^2/DoF = 0.00075R^2 = 0.99322 R0 0.14058 ±0.00035C -1.1588E-6 ±0.6524E-10n 2 ±0
Data: A2kup1_GModel: hall Equation: Rxy=R0*B+C*Rxx^n n=1 Weighting:Rxy No weighting Chi^2/DoF = 0.00074R^2 = 0.99331 R0 0.13245 ±0.00034C -0.00531 ±7.526E-7n 1 ±0
Y A
xis
Titl
e
X Axis Title
G
Fit Function: Rxy=R0 B+C Rxxn
Error of p <5%
As-grown sample
-20 -10 0 10 2014000
14700
15400
16100
16800 2K 4K 10K
Rxx
/
B/T
Mn450 12%Mn hydrogen New [1-10] Asg
-15 -10 -5 0 5 10 1516000
18000
20000
22000
24000Mn437 12%Mn [1-10] Asg
2K 4K 10K
Rxx
/
B/T-15 -10 -5 0 5 10 15
-400
-300
-200
-100
0
100
200
300
400Mn437 12%Mn [1-10] Asg
2K 4K 10K
B/T
Rxy
/
-15 -10 -5 0 5 10 15
-200
-100
0
100
200
Rxy
/
B/T
2K 4K 10K
Mn450 12%Mn hydrogen New [1-10] Asg
Tc~60K
Tc~70K
0 5 10 15260
270
280
290
Rxy Fit 5T-14T Fit 2T-14T
R
xy/
B/T
Mn437 12%Mn Asg
0 2 4 6 8 10 12 140.55
0.60
0.65
0.70
0.75
0.80
0.85 R0
R0
B/T
0 2 4 6 8 10 12 140.0
0.5
1.0
1.5
2.0
2.5
3.0
B/T
C
C
0 2 4 6 8 10 12 14
0.46
0.48
0.50
0.52
0.54
0.56
0.58
n
B/T
n
Carrier density :3E20cm-3->4.4E20cm-3
Fit2. Rxy=R0 B+C1 Rxx2+C2Rxx0.4
(M. Glunk, etc. PRB 80, 125204 2009)
2T-14T
R0 0.5835 ±0.00188 (p=4.28E+20)
C1 2.7732E-8 ±2.365E-10
C2 4.91818 ±0.00192
5T-14TR0 0.64858 ± 0.00329 (p=3.85E+20)C1 3.8932E-8 ± 5.6689E-10C2 4.83154 ± 0.00437
0 3 6 9 12 15
264
272
280
5T-14T Chi^2/DoF = 0.00229R^2 = 0.99945 R0 0.64858 ±0.00329C1 3.8932E-8 ±5.6689E-10C2 4.83154 ±0.00437
2T-14T
Chi^2/DoF = 0.00377R^2 = 0.99978 R0 0.5835 ±0.00188C1 2.7732E-8 ±2.365E-10C2 4.91818 ±0.00192
Rxy
/
B/T
-15 -10 -5 0 5 10 1540000
45000
50000
55000
60000
65000
2K 4K 10K
Mn450 12%Mn hydrogen Old [1-10] AsgR
xx/
B/T
-15 -10 -5 0 5 10 15
-5000
-4000
-3000
-2000
-1000
2K 4K 10K
Mn450 12%Mn hydrogen Old [1-10] Asg
Rxy
/
B/T
-2 0 2 4 6 8 10 12 14 16
-4000
-3000
-2000
-1000
0
1000
2000
3000
4000
Rxy
/
B/T
Field sweep up Raw data Rxy Field sweep down Raw data Rxy delete the sysmtric part
4 8 12
360
380
Data: Average1_BModel: hall1 Chi^2/DoF = 0.44906R^2 = 0.98459 R0 0.45497 ±0.02073C1 -1.192E-8 ±2.9734E-10C2 5.25815 ±0.01124
Data: Average1_BModel: hall Chi^2/DoF = 0.45313R^2 = 0.98445 R0 0.24172 ±0.02668C 25.32342 ±1.05318n 0.24778 ±0.00378
Y A
xis
Titl
e
B/T
Average of Graph1 Layer 1 Rxy
Tc~55K
Field Range: 3T-14T
Fit1. Rxy=R0 B+C Rxxn
R0=0.24172 ±0.02668 (p=1.03E+21cm-3)
C=25.32342 ±1.05318n=0.24778 ±0.00378
Fit2. Rxy=R0 B+C1 Rxx2+C2Rxx0.4
R0=0.45497 ±0.02073 (p=5.44E+20cm-3)C1= -1.192E-8 ±2.9734E-10C2=5.25815 ± 0.01124
Mobility
R/Ω ρ(Ω-1.cm-1) p(cm-3) μ(cm2/V.s)
Annealed
Mn437
2K 4566 1.8022E-03 1.87E+21 1.850207
4K 4533 1.78918E-03 1.88E+21 1.86048
10K 4492 1.77299E-03 1.92E+21 1.839443
Mn450
2K 5027 1.98416E-03 1.44E+21 2.18132
4K 4990 1.96955E-03 1.47E+21 2.159071
10K 4939 1.94942E-03 1.5E+21 2.137575
As-grown Mn437 2K 22667 8.94666E-03 4E+20 1.7465