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The dependence of the electrical conductivity on the oxygen partial pressure is calculated for the prototypical perovskite $\Ba\Ti\O_3$ based on data obtained from first-principles calculations within density functional theory. The…

Materials Science · Physics 2012-01-19 Paul Erhart , Karsten Albe

Realizing an optimal Schottky interface of graphene on Si is challenging, as the electrical transport strongly depends on the graphene quality and the fabrication processes. Such interfaces are of increasing research interest for…

Mesoscale and Nanoscale Physics · Physics 2017-02-08 S. Parui , R. Ruiter , P. J. Zomer , M. Wojtaszek , B. J. van Wees , T. Banerjee

We investigate electronic structures and thermoelectric properties of recent synthetic half-Heusler $\mathrm{ZrNiPb}$ by using generalized gradient approximation (GGA) and GGA plus spin-orbit coupling (GGA+SOC). Calculated results show that…

Materials Science · Physics 2016-03-29 San-Dong Guo

We report transport measurements, including: Hall, Seebeck and Nernst Effect. All these transport properties exhibit anomalous field and temperature dependences, with a change of behavior observed at about H 1.5T and T 15K. We were able to…

Strongly Correlated Electrons · Physics 2012-05-24 S. Lerer , M. Ben-Shalom , G. Deutscher , Y. Dagan

Using field effect devices with side gates, we modulate the 2 dimensional electron gas hosted at the LaAlO$_3$/SrTiO$_3$ interface to study the temperature and doping evolution of the magnetotransport. The analysis of the data reveals…

Mesoscale and Nanoscale Physics · Physics 2015-03-20 D. Stornaiuolo , S. Gariglio , A. Fête , M. Gabay , D. Li , D. Massarotti , J. -M. Triscone

LaAlO3/SrTiO3 structures showing high mobility conduction have recently aroused large expectations as they might represent a major step towards the conception of all-oxide electronics devices. For the development of these technological…

Nb doped SrTiO3, the first discovered two-gap superconductor, is shown to be the most unconventional one of the known multiband superconductors, since the smaller of the two superconducting gaps follows a non BCS temperature dependence.…

Superconductivity · Physics 2009-09-24 A. Bussmann-Holder , A. R. Bishop , A. Simon

Electron-doped strontium titanate $\rm{SrTiO_3}$, known to be one of the most dilute superconductors, is investigated on the basis of the first-principles calculations. When the carrier density n decreases, the frequencies of the…

Superconductivity · Physics 2025-09-16 Riku Ikaida , Kazuhiro Sano , Yoshimi Masuda , Takuya Sekikawa , Yoshiaki Ōno

Transparent electronic materials are increasingly in demand for a variety of optoelectronic applications. BaSnO3 is a semiconducting oxide with a large band gap of more than 3.1 eV. Recently, we discovered that La doped BaSnO3 exhibits…

We report controlled formation of sub-100 nm-thin electron channels in SrTiO$_3$ by doping with oxygen vacancies induced by Ar$^+$-ion irradiation. The conducting channels exhibit a consistent high electron mobility (~15,000…

Mesoscale and Nanoscale Physics · Physics 2015-11-03 Jung-Won Chang , Joon Sung Lee , Tae Ho Lee , Jinhee Kim , Yong-Joo Doh

We report wide-doping-range ($8 \times 10^{17}$ to $4 \times 10^{20}$ cm$^{-3}$ Hall electron density) low temperature specific heat measurements on single crystal SrTiO$_3$:Nb, correlated with electronic transport data and tight-binding…

Strongly Correlated Electrons · Physics 2019-02-20 E. McCalla , M. N. Gastiasoro , G. Cassuto , R. M. Fernandes , C. Leighton

We report magnetotransport properties of photogenerated electrons in undoped SrTiO$_3$ single crystals under ultraviolet illumination down to 2 K. By tuning the light intensity, the steady state carrier density can be controlled, while…

Strongly Correlated Electrons · Physics 2009-11-13 Y. Kozuka , Y. Hikita , T. Susaki , H. Y. Hwang

We investigate the structural, electronic, transport, and thermoelectric properties of LaNiO$_3$/SrTiO$_3(001)$ superlattices containing either exclusively $n$- or $p$-type interfaces or coupled interfaces of opposite polarity by using…

Materials Science · Physics 2017-03-03 Benjamin Geisler , Ariadna Blanca-Romero , Rossitza Pentcheva

Understanding band alignment and charge transfer at complex oxide interfaces is critical to tailoring and utilizing their diverse functionality. Towards this goal, we design and experimentally validate both Ohmic- and Schottky-like charge…

Oxide semimetals exhibiting both nontrivial topological characteristics stand as exemplary parent compounds and multiple degrees of freedom, offering great promise for the realization of novel electronic states. In this study, we present…

Electronic transport has been investigated for strong spin-orbit coupled perovskite SrIrO3 thin films grown at various substrate temperatures. The electronic transport of the SrIrO3 films is found to be very sensitive to the growth…

Strongly Correlated Electrons · Physics 2015-03-17 Abhijit Biswas , Yoon Hee Jeong

In-plane transport properties of nonsuperconducting YBa_{2}Cu_{3}O_{y} (y = 6.35) are measured using high-quality untwinned single crystals. We find that both the a- and b-axis resistivities show log(1/T) divergence down to 80 mK, and…

Superconductivity · Physics 2015-06-25 X. F. Sun , Kouji Segawa , Yoichi Ando

In recent years, striking discoveries have revealed that two-dimensional electron liquids (2DEL) confined at the interface between oxide band-insulators can be engineered to display a high mobility transport. The recognition that only few…

Materials Science · Physics 2012-10-31 Gervasi Herranz , Florencio Sánchez , Nico Dix , Mateusz Scigaj , Josep Fontcuberta

Charge transport properties of thin films of sol--gel processed undoped and Al-doped zinc oxide nanoparticles with variable doping level between 0.8 at% and 10 at% were investigated. The X-ray diffraction studies revealed a decrease of the…

Materials Science · Physics 2008-11-13 Maria S Hammer , Daniel Rauh , Carsten Deibel , Vladimir Dyakonov

We study theoretically the transport properties of a three-dimensional spin texture made from three orthogonal helices, which is essentially a lattice of monopole-antimonopole pairs connected by Skyrmion strings. This spin structure is…

Mesoscale and Nanoscale Physics · Physics 2016-12-01 Xiao-Xiao Zhang , Andrey S. Mishchenko , Giulio De Filippis , Naoto Nagaosa