POLARIZED POSITRONS AS SPIN DETECTORS FOR PARAMAGNETIC CENTERS IN SOLIDS

被引：2
|
作者：
DECKERS, C
EHMANN, J
GREIF, H
KEUSER, F
KNICHEL, W
LAUFF, U
MAIER, K
SIEGLE, A
TONGBHOYAI, M
机构：
[1] MAX PLANCK INST MET RES,INST PHYS,D-70569 STUTTGART,GERMANY
[2] UNIV STUTTGART,INST THEORET & ANGEW PHYS,D-70569 STUTTGART,GERMANY
来源：
JOURNAL DE PHYSIQUE IV | 1995年 / 5卷 / C1期
关键词：
D O I：
10.1051/jp4:1995109
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A technique for studying paramagnetic defects in insulators or semiconductors acting as positron traps is presented. The spin polarization of the paramagnetic electrons of such centres can be determined by investigating the annihilation of spin-polarized positrons, e.g. by Doppler broadening (DB) or positron lifetime measurements. The viability of this technique is demonstrated by measuring the temperature dependence of the polarization of the paramagnetic electrons in F-centres in KCl in high magnetic fields (+/-4.5T).
引用
收藏
页码：81 / 86
页数：6
相关论文
共 50 条
  • [21] PARAMAGNETIC ELECTRON RESONANCE IN STRONGLY POLARIZED SPIN SYSTEMS
    CHAU, VH
    CHAPELLI.M
    GOLDMAN, M
    JOURNAL DE PHYSIQUE, 1969, 30 (5-6): : 427 - &
  • [22] SPIN RELAXATION OF POLARIZED POSITIVE MUONS IN PARAMAGNETIC SOLUTIONS
    SCHENCK, A
    PHYSICS LETTERS A, 1970, A 32 (01) : 19 - &
  • [23] ANNIHILATION OF POSITRONS IN SOLIDS
    POND, TA
    PHYSICAL REVIEW, 1953, 91 (02): : 455 - 455
  • [24] ON THE ANNIHILATION OF POSITRONS IN SOLIDS
    FERGUSON, ATG
    LEWIS, GM
    PHILOSOPHICAL MAGAZINE, 1953, 44 (359): : 1339 - 1347
  • [25] DYNAMICS OF NUCLEAR SPIN SYSTEM IN PRESENCE OF PARAMAGNETIC CENTERS
    POPOV, YL
    DAUTOV, RA
    SAIKIN, KS
    BASHIROV, FI
    FIZIKA TVERDOGO TELA, 1973, 15 (08): : 2308 - 2311
  • [26] Slow spin relaxation of paramagnetic centers in graphene oxide
    Augustyniak-Jablokow, Maria A.
    Tadyszak, Krzysztof
    Strzelczyk, Roman
    Fedaruk, Ryhor
    Carmieli, Raanan
    CARBON, 2019, 152 : 98 - 105
  • [27] NUCLEAR-SPIN LATTICE-RELAXATION VIA PARAMAGNETIC CENTERS IN SOLIDS - C-13 NMR OF DIAMONDS
    HENRICHS, PM
    COFIELD, ML
    YOUNG, RH
    HEWITT, JM
    JOURNAL OF MAGNETIC RESONANCE, 1984, 58 (01) : 85 - 94
  • [28] Fabrication of an InGaAs spin filter by implantation of paramagnetic centers
    Nguyen, C. T.
    Balocchi, A.
    Lagarde, D.
    Zhang, T. T.
    Carrere, H.
    Mazzucato, S.
    Barate, P.
    Galopin, E.
    Gierak, J.
    Bourhis, E.
    Harmand, J. C.
    Amand, T.
    Marie, X.
    APPLIED PHYSICS LETTERS, 2013, 103 (05)
  • [29] SCATTERING OF POLARIZED POSITRONS BY POLARIZED ELECTRONS
    SCOTT, JMC
    PHILOSOPHICAL MAGAZINE, 1957, 2 (24): : 1472 - 1474
  • [30] ELECTRON PARAMAGNETIC RESONANCE OF V205 PARAMAGNETIC CENTERS AND FORMIC ACID ADSORPTION ON THEIR SOLIDS
    KERMAREC, M
    IMELIK, B
    COMPTES RENDUS HEBDOMADAIRES DES SEANCES DE L ACADEMIE DES SCIENCES SERIE C, 1970, 270 (13): : 1148 - &
12345