Articles

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Physical Phenomena in ElectronicMaterials in the Terahertz Region, Faculty of Engineering - Papers (2007)
Terahertz radiation is a powerful probe of materials’ properties, because many materials have characteristic energies...
 

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Magnetopolaron interactions in n-type indium phosphide (with P. E. Simmonds and Y. J. Wang), Faculty of Engineering - Papers (2005)
Broadband far-infrared absorption spectroscopy is used to investigate n-type indium phosphide in magnetic fields of...
 

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Strong terahertz emission from (100) p-type InAs (with R. Mendis, M. L. Smith, L. J. Bignell, and R. Vickers), Faculty of Engineering - Papers (2005)
Terahertz emission has been observed from (100) Zn-acceptor-doped InAs under illumination by fs pulses of...
 

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Electronic efficiency in nanostructured thermionic and thermoelectric devices (with M. F. O'Dwyer, C. Zhang, and T. E. Humphrey), Faculty of Engineering - Papers (2005)
Advances in solid-state device design now allow the spectrum of transmitted electrons in thermionic and...
 

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Infrared-active phonons of perovskite HoMn/sub 1-x/Co/sub x/O/sub 3/ (x=0--0.8) (with F. Gao, X. L. Wang, and M. M. Farhoudi), Faculty of Engineering - Papers (2005)
Polycrystalline perovskites compounds HoMn/sub 1-x/Co/sub x/O/sub 3/ (x=0--0.8) have been prepared by conventional solid-state reaction....
 

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Solid-state thermionics and thermoelectrics in the ballistic transport regime (with T. E. Humphrey, M. F. O'Dwyer, and C. Zhang), Faculty of Engineering - Papers (2005)
It is shown that the equations for electrical current in solid-state thermionic and thermoelectric devices...
 

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Magneto-optical far-infrared absorption spectroscopy of the hole states of indium phosphide (with Y. Wang), Faculty of Engineering - Papers (2005)
Far-infrared absorption spectroscopy in magnetic fields of up to 30 T of the zinc acceptor...
 

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Magnetospectroscopy of Be in GaAs (with Y. Wang and M. Henini), Faculty of Engineering - Papers (2003)
Far-infrared absorption measurements have been made of the Lyman series of the acceptor Be in...
 

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Internal transitions of confined neutral magnetoexcitons in GaAs/AlxGa1–xAs quantum wells (with H. A. Nickel, G. Kioseoglou, T. Yeo, H. D. Cheong, A. Petrou, B. D. McCombe, D. Broido, and K. K. Bajaj), Faculty of Engineering - Papers (2000)
Optically detected resonance spectroscopy has been used to study resonant absorption of electrons, holes, and...
 

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Piezospectroscopy of the p3/2 and Fano series of singly ionized zinc in germanium (with G. Piao and P. Fisher), Faculty of Engineering - Papers (2000)
The absorption spectrum of singly ionized zinc in Ge has been studied using Fourier spectroscopy....
 

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Central-cell corrections for Si and S in GaAs in a strong magnetic field (with R. J. Heron, P. E. Simmonds, R. P. Starrett, A. V. Skougarevsky, R. G. Clark, and C. R. Stanley), Faculty of Engineering - Papers (1999)

The central-cell correction has been determined experimentally for the two donor impurities S and Si...

 

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Quantum point contact in a magnetic field: Far-infrared resonant heating observed in photoconductivity (with R. J. Heron, B. E. Kane, G. R. Facer, R. G. Clark, A. S. Dzurak, N. E. Lumpkin, R. P. Starrett, D. G. Rickel, L. N. Pfeiffer, and K. W. West), Faculty of Engineering - Papers (1999)
We report on the far-infrared photoresponse of a quantum point contact device fabricated on a...
 

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Spectroscopy and piezospectroscopy of the Lyman transitions and Fano resonances of indium in silicon (with G. Piao and P. Fisher), Faculty of Engineering - Papers (1996)
A spectroscopic investigation has been made of the p3/2 and p1/2 transitions and the bound...
 

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Energy states of Be in GaAs (with T. S. Cheng, M. Henini, and J. M. Chamberlain), Faculty of Engineering - Papers (1996)
Far-infrared absorption due to Lyman transitions of the Be acceptor in GaAs has been measured...
 

Presentations

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Electrical and Optical Properties of La0.7Ca0.3MnO3 Polycrystalline and Thin Film (with F. Gao, M. Ionescu, X. L. Wang, and S. X. Dou), Faculty of Engineering - Papers (2008)

The La0.7Ca0.3MnO3 thin film shows a metal-insulator transition at temperature around 150 K, about 100...

 

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Electroresistance of Perovskite Manganites (with D. C. Pond), Faculty of Engineering - Papers (2008)

A comprehensive delineation of current-voltage-temperature space is given for La0.66Sr0.33MnO3 and La0.8Li0.2MnO3. The first shows...

 

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Terahertz Emission from Mercury Cadmium Telluride (with M. L. Smith, R. Mendis, and R. E. M. Vickers), Faculty of Engineering - Papers (2008)
THz-frequency electromagnetic radiation may be generated by illuminating a suitable target with short pulses of...
 

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THz Emission from Mercury Cadmium Telluride Films Grown on Cadmium Zinc Telluride Substrates (with R. Mendis, M. L. Smith, R. E. Vickers, and C. Zhang), Faculty of Engineering - Papers (2006)
We have observed THz emission from single- and double-layer HgCdTe (MCT) films epitaxially grown on...
 

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Power generation with nanowire resonant tunneling thermoelectrics (with M. F. O'Dwyer, H. Linke, E. Hoffmann, T. E. Humphrey, and C. Zhang), Faculty of Engineering - Papers (2006)
Nanowires have been predicted to yield significantly improved thermoelectric figures of merit. Here we describe...
 

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Terahertz Emission from (100) p-InA (with M. L. Smith, R. Mendis, and R. E. M. Vickers), Faculty of Engineering - Papers (2005)
Terahertz emission from (100) p-type InAs illuminated by ultrafast near-infrared pulses is investigated. A two-fold...
 

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The effect of the electron energy spectrum on electronic efficiency and power in thermionic and thermoelectric devices (with M. F. O'Dwyer, T. E. Humphrey, and C. Zhang), Faculty of Engineering - Papers (2005)
We show that the details of the energy spectrum of transmitted electrons in thermionic and...
 

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Infrared-active phonons of HoMn/sub 1-x/Co/sub x/O/sub 3/ (x = 0-0.8) (with F. Gao, X. L. Wang, M. Farhoudi, and S. X. Dou), Faculty of Engineering - Papers (2005)
Polycrystalline HoMn/sub 1-x/Co/sub x/O/sub 3/ was synthesized by solid-state reaction. The infrared active phonons of...
 

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Selective laser excitation spectroscopy of gallium and phosphorous in germanium (with C. A. Freeth), Faculty of Engineering - Papers (2002)
Shallow impurity states of donors and acceptors in Ge have been investigated by far-infrared laser...
 

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Thermal and electrical characteristics of a multilayer thermionic device (with B. C. Lough, S. P. Lee, Z. Dou, and C. Zhang), Faculty of Engineering - Papers (2002)
We report our recent experimental and numerical investigation into the thermal and electrical transport...
 

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Thermionic cooling of optoelectronic and microelectronic devices (with S. P. Lee, B. C. Lough, and C. Zhang), Faculty of Engineering - Papers (2000)
Solid-state thermionic cooling has gained attention recently because of its potential high cooling power....
 

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Characterisation of indium phosphide using terahertz radiation (with R. L. Causley), Faculty of Engineering - Papers (2000)
Specimens of undoped, n-type and p-type bulk InP have been investigated using THz radiation. Reflection...