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Condensed Matter Physics Commons

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Theses and Dissertations--Physics and Astronomy

2012

Scanning tunneling microscope

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Full-Text Articles in Condensed Matter Physics

The Development And Implementation Of Electromechanical Devices To Study The Physical Properties Of Sr2iro4 And Tas3, John A. Nichols Jan 2012

The Development And Implementation Of Electromechanical Devices To Study The Physical Properties Of Sr2iro4 And Tas3, John A. Nichols

Theses and Dissertations--Physics and Astronomy

Transition metal oxides (TMO) have proven to exhibit novel properties such as high temperature superconductivity, magnetic ordering, charge and spin density waves, metal to insulator transitions and colossal magnetoresistance. Among these are a spin-orbit coupling (SOC) induced Mott insulator Sr2IrO4. The electric transport properties of this material remain finite even at cryogenic temperatures enabling its complex electronic structure to be investigated by a scanning tunneling microscope. At T = 77 K, we observed two features which represent the Mott gap with a value of 2D ~ 615 meV. Additionally an inelastic loss feature was observed inside …