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Titolo:
PARAMAGNETIC BEHAVIOR IN NINAY ZEOLITES
Autore:
TONG LT; WU F; YAN SS;
Indirizzi:
BEIJING UNIV,DEPT PHYS BEIJING 100871 PEOPLES R CHINA BEIJING UNIV,DEPT CHEM BEIJING 100871 PEOPLES R CHINA
Titolo Testata:
Solid state communications
fascicolo: 12, volume: 97, anno: 1996,
pagine: 1043 - 1046
SICI:
0038-1098(1996)97:12<1043:PBINZ>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Soggetto:
ELECTRON-MICROSCOPY; MAGNETIC-PROPERTIES; NICKEL DISPERSIONS; CLUSTERS; REDUCTION;
Keywords:
EXCHANGE AND SUPEREXCHANGE; INSULATORS; CHEMICAL SYNTHESIS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
21
Recensione:
Indirizzi per estratti:
Citazione:
L.T. Tong et al., "PARAMAGNETIC BEHAVIOR IN NINAY ZEOLITES", Solid state communications, 97(12), 1996, pp. 1043-1046

Abstract

The temperature dependence of the DC magnetization of a series of NiNaY zeolite samples has been measured at 2 T from 1.5 K to 140 K, The results show typical paramagnetic behavior for all the samples. The obtained magnetic moment of the paramagnetic unit implies a ferromagneticcoupling between the nearest neighboring Ni2+ ions in a non-reduced sample. For the Ni-0 cluster in a supercage of the reduced samples, thenumber of atoms in the cluster is close to the magic numbers 18 and 20 for alkali metal clusters. No magnetic coupling between the Ni2+ pairs and between the Ni-0 clusters was found.

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Documento generato il 19/01/20 alle ore 11:49:10