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Carrier density of the high Tc and hydrogen doped samples measured by the high magnetic field.

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Παρουσίαση με θέμα: "Carrier density of the high Tc and hydrogen doped samples measured by the high magnetic field."— Μεταγράφημα παρουσίασης:

1 Carrier density of the high Tc and hydrogen doped samples measured by the high magnetic field.

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3 Annealed sample Tc~175K Tc~165K

4 High Tc sample n=1 p= E+21cm -3 n=2 p= E+21cm -3 Hydrogen sample n=1 p= E+21cm -3 n=2 p= E+21cm -3 High Tc sample n=1 p=1.9164E+21cm -3 n=2 p= E+21cm -3 Hydrogen sample n=1 p= E+21cm -3 n=2 p= E+21cm -3 Fit Function: Rxy=R 0 B+C Rxx n Error of p <5%

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7 As-grown sample Tc~60K Tc~70K

8 Carrier density :3E20cm -3 ->4.4E20cm -3

9 Fit2. Rxy=R 0 B+C 1 Rxx 2 +C 2 Rxx 0.4 (M. Glunk, etc. PRB 80, ) 2T-14T R ± (p=4.28E+20) C E-8±2.365E-10 C ± T-14T R ± (p=3.85E+20) C E-8 ± E-10 C ±

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11 Tc~55K

12 Field Range: 3T-14T Fit1. Rxy=R 0 B+C Rxx n R0= ± (p=1.03E+21cm -3 ) C= ± n= ± Fit2. Rxy=R 0 B+C 1 Rxx 2 +C 2 Rxx 0.4 R0= ± (p=5.44E+20cm -3 ) C1= E-8 ±2.9734E-10 C2= ±

13 Mobility R/Ωρ(Ω -1. cm -1 )p(cm -3 )μ(cm 2 /V. s) Annealed Mn437 2K E E K E E K E E Mn450 2K E E K E E K E-031.5E As-grownMn4372K E-034E


Κατέβασμα ppt "Carrier density of the high Tc and hydrogen doped samples measured by the high magnetic field."

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