Beta-NMR run Oct 23 – Oct 28 2008 10 shifts 8Li from ITE ... Science Forum_Nov 5 2… · First...

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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 2008 Rates : 1.0 ~ 1.5 Х10 6 β /s L+R @ NQR Beta-NMR run Oct 23 – Oct 28 2008 10 shifts 28 keV 8 Li from ITE, HP Ta Gerald Morris - ISAC forum 2008.11.5

Transcript of Beta-NMR run Oct 23 – Oct 28 2008 10 shifts 8Li from ITE ... Science Forum_Nov 5 2… · First...

Page 1: Beta-NMR run Oct 23 – Oct 28 2008 10 shifts 8Li from ITE ... Science Forum_Nov 5 2… · First run : Fri Oct 24 15:20:51 2008 Rates : 1.0 ~ 1.5 Х106 β /s L+R @ NQR Beta-NMR run

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

Page 2: Beta-NMR run Oct 23 – Oct 28 2008 10 shifts 8Li from ITE ... Science Forum_Nov 5 2… · First run : Fri Oct 24 15:20:51 2008 Rates : 1.0 ~ 1.5 Х106 β /s L+R @ NQR Beta-NMR run

Good tunes were established for decelerated beam at 2keV.

sapphire scintillator

YBa2Cu

3O7

8mm

Gerald Morris - ISAC forum 2008.11.5

Page 3: Beta-NMR run Oct 23 – Oct 28 2008 10 shifts 8Li from ITE ... Science Forum_Nov 5 2… · First run : Fri Oct 24 15:20:51 2008 Rates : 1.0 ~ 1.5 Х106 β /s L+R @ NQR Beta-NMR run

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

Page 4: Beta-NMR run Oct 23 – Oct 28 2008 10 shifts 8Li from ITE ... Science Forum_Nov 5 2… · First run : Fri Oct 24 15:20:51 2008 Rates : 1.0 ~ 1.5 Х106 β /s L+R @ NQR Beta-NMR run

Gerald Morris - ISAC forum 2008.11.5

Page 5: Beta-NMR run Oct 23 – Oct 28 2008 10 shifts 8Li from ITE ... Science Forum_Nov 5 2… · First run : Fri Oct 24 15:20:51 2008 Rates : 1.0 ~ 1.5 Х106 β /s L+R @ NQR Beta-NMR run

Gerald Morris - ISAC forum 2008.11.5

YBCO c-axis Field dependence

Page 6: Beta-NMR run Oct 23 – Oct 28 2008 10 shifts 8Li from ITE ... Science Forum_Nov 5 2… · First run : Fri Oct 24 15:20:51 2008 Rates : 1.0 ~ 1.5 Х106 β /s L+R @ NQR Beta-NMR run

YBCO (110) Field dependence

Gerald Morris - ISAC forum 2008.11.5

Page 7: Beta-NMR run Oct 23 – Oct 28 2008 10 shifts 8Li from ITE ... Science Forum_Nov 5 2… · First run : Fri Oct 24 15:20:51 2008 Rates : 1.0 ~ 1.5 Х106 β /s L+R @ NQR Beta-NMR run

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

Page 8: Beta-NMR run Oct 23 – Oct 28 2008 10 shifts 8Li from ITE ... Science Forum_Nov 5 2… · First run : Fri Oct 24 15:20:51 2008 Rates : 1.0 ~ 1.5 Х106 β /s L+R @ NQR Beta-NMR run

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

Page 9: Beta-NMR run Oct 23 – Oct 28 2008 10 shifts 8Li from ITE ... Science Forum_Nov 5 2… · First run : Fri Oct 24 15:20:51 2008 Rates : 1.0 ~ 1.5 Х106 β /s L+R @ NQR Beta-NMR run

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

Page 10: Beta-NMR run Oct 23 – Oct 28 2008 10 shifts 8Li from ITE ... Science Forum_Nov 5 2… · First run : Fri Oct 24 15:20:51 2008 Rates : 1.0 ~ 1.5 Х106 β /s L+R @ NQR Beta-NMR run

EuO / SiE=28KeV (in Si)H

0=15mT // surface

Temperature scan