Beta-NMR run Oct 23 – Oct 28 2008 10 shifts 8Li from ITE ... Science Forum_Nov 5 2… · First...
Transcript of Beta-NMR run Oct 23 – Oct 28 2008 10 shifts 8Li from ITE ... Science Forum_Nov 5 2… · First...
NQR (low & zero magnetic field) : Ag (15nm) / YBCO, (110) and c-axis, plus Ag films
EuO/Si
NMR (high field)Ag coated YBCO de-twinned XL in vortex state
First run : Fri Oct 24 15:20:51 2008Rates : 1.0 ~ 1.5 Х106 β /s L+R @ NQR
Beta-NMR run Oct 23 – Oct 28 200810 shifts28 keV 8Li from ITE, HP Ta
Gerald Morris - ISAC forum 2008.11.5
Good tunes were established for decelerated beam at 2keV.
sapphire scintillator
YBa2Cu
3O7
8mm
Gerald Morris - ISAC forum 2008.11.5
T=10 K
T=100 K
Magnetism at the surface of YBa2Cu
3O
7-
2keV 8Li stopped In 15nm Ag on YBCO (001)
1mT // surface
Gerald Morris - ISAC forum 2008.11.5
Gerald Morris - ISAC forum 2008.11.5
Gerald Morris - ISAC forum 2008.11.5
YBCO c-axis Field dependence
YBCO (110) Field dependence
Gerald Morris - ISAC forum 2008.11.5
Gerald Morris - ISAC forum 2008.11.5
EuO / Si
E1176 - 8Li Investigation of Spin Transport through a Ferromagnet-Semiconductor Interface.
S. Dunsiger (Tech. Univ. Munich)
8Li+ @ 5 - 28keV
Gerald Morris - ISAC forum 2008.11.5
E=5 keVIn EuO
E=9 keVAt interface
E= 28 keVIn Si
232(30)Hz
222(8)Hz
183(3)Hz
EuO/Si : Depth Dependence at 295K in H0=15mT
EuO/SiTemperature dependenceE=28 keV (135 nm into Si) H
0=15mT
Frequency kHz Frequency kHz
T=295K
T=100K
T=75K
T=65K
T=55KBroad line “deep” in Si
EuO / SiE=28KeV (in Si)H
0=15mT // surface
Temperature scan