Electron-hopping modes in NiMn2O4+δ materials | Zendy

Rainer Schmidt | Zendy; Arnab Basu | Zendy; A.W. Brinkman | Zendy; Z. Klusek | Zendy; P.K. Datta | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Electron-hopping modes in NiMn2O4+δ materials

Author(s) -

Rainer Schmidt,

Arnab Basu,

A.W. Brinkman,

Z. Klusek,

P.K. Datta

Publication year - 2005

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.1866643

Subject(s) - variable range hopping , polaron , thermistor , condensed matter physics , quantum tunnelling , electron , materials science , thermal conduction , pellets , atmospheric temperature range , physics , thermodynamics , composite material , quantum mechanics

The resistance versus temperature (R-T) characteristics of NiMn2O4+delta thermistors have been analyzed. In the literature, electron transport in manganate spinels is commonly described by a small-polaron model for nearest neighbor hopping, but variable range hopping (VRH) has not been considered so far. In this study differentiated R-T data were analyzed, allowing a clear distinction between different modes of hopping. In pressed pellets and thick screen printed films conduction was well described by a VRH model for a parabolic density of states, which was confirmed by scanning tunneling spectroscopy

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research