139 citations · 466 across the 10 of their papers we have counts for
11 papers
Unveiling the structural, chemical state, and optical band-gap evolution of Ta-doped epitaxial SrTiO3 thin films using first-principles calculations and spectroscopic ellipsometry
Shammi Kumar, Raja Sen, Mamta Arya +2
In this report, the optical properties of Ta doped SrTiO3 (STO) due to its potential in transparent conducting oxides (TCOs) is explored by a combination of theoretical studies bas…
Boosting the transparency of metallic SrNbO3 through Ti doping
Shammi Kumar, Liang Si, Karsten Held +3
In recent years, various materials have been developed to reduce the reliance of industries on Indium, a primary component of transparent conducting oxides (TCOs) used in the curre…
Emerging giant resonant exciton induced by Ta-substitution in anatase TiO: a tunable correlation effect
Z. Yong, P. E. Trevisanutto, L. Chiodo +11
Titanium dioxide (TiO) has rich physical properties with potential implications in both fundamental physics and new applications. Up-to-date, the main focus of applied research…
Unexpected Anisotropic Two Dimensional Electron Gas at the LaAlO3/SrTiO3 (110) Interface
A. Annadi, X. Wang, K. Gopinadhan +17
The observation of a two dimensional electron gas (2DEG) (1, 2), superconductivity (3, 4), magnetic effects (5) and electronic phase separation (6-8) at the interfaces of insulatin…
Metallic state in La-doped YBaCuO thin films with -type charge carriers
S. W. Zeng, X. Wang, W. M. Lü +10
We report hole and electron doping in La-doped YBaCuO(YBCO) thin films synthesized by pulsed laser deposition technique and subsequent \emph{in-situ} postannealing in o…
Cationic vacancy induced room-temperature ferromagnetism in transparent conducting anatase Ti_{1-x}Ta_xO_2 (x~0.05) thin films
A. Rusydi, S. Dhar, A. Roy Barman +16
We report room-temperature ferromagnetism in highly conducting transparent anatase Ti1-xTaxO2 (x~0.05) thin films grown by pulsed laser deposition on LaAlO3 substrates. Rutherford…
Reversible room-temperature ferromagnetism in Nb-doped SrTiO3 single crystals
Z. Q. Liu, W. M. Lu, S. L. Lim +8
The search for oxide-based room-temperature ferromagnetism has been one of the holy grails in condensed matter physics. Room-temperature ferromagnetism observed in Nb-doped SrTiO3…
Magnetoresistance of 2D and 3D Electron Gas in LaAlO3/SrTiO3 Heterostructures: Influence of Magnetic Ordering, Interface Scattering and Dimensionality
X. Wang, W. M Lü, A. Annadi +4
Magnetoresistance (MR) anisotropy in LaAlO3/SrTiO3 (LAO/STO) interfaces is compared between samples prepared in high oxygen partial pressure (PO2) of 10-4 mbar exhibiting quasi-two…
Reversible metal-insulator transition in LaAlO3 thin films mediated by intragap defects: An alternative mechanism for resistive switching
Z. Q. Liu, D. P. Leusink, W. M. Lü +13
We report on the electric-field-induced reversible metal-insulator transition (MIT) of the insulating LaAlO3 thin films observed in metal/LaAlO3/Nb-SrTiO3 heterostructures. The swi…
Carrier freeze-out induced metal-insulator transition in oxygen deficient SrTiO3 films
Z. Q. Liu, D. P. Leusink, X. Wang +11
We report the optical, electrical transport, and magnetotransport properties of high quality oxygen deficient SrTiO3 (STO) single crystal film fabricated by pulsed laser deposition…
Nonlinear Insulator in Complex Oxides
Z. Q. Liu, D. P. Leusink, W. M. Lü +10
The insulating state is one of the most basic electronic phases in condensed matter. This state is characterised by an energy gap for electronic excitations that makes an insulator…