130 citations · 312 across the 17 of their papers we have counts for
17 papers
Phonon-mediated room-temperature quantum Hall transport in graphene
Daniel Vaquero, Vito Clericò, Michael Schmitz +14
The quantum Hall (QH) effect in two-dimensional electron systems (2DESs) is conventionally observed at liquid-helium temperatures, where lattice vibrations are strongly suppressed…
Dimensionality control and rotational symmetry breaking superconductivity in square-planar layered nickelates
Lin Er Chow, Km Rubi, King Yau Yip +11
The interplay between dimensionality and various phases of matter is a central inquiry in condensed matter physics. New phases are often discovered through spontaneously broken sym…
Interwoven atypical quantum states in CeLiBi
Mitchell M. Bordelon, Clément Girod, Filip Ronning +7
We report the discovery of CeLiBi, the first example of a material in the tetragonal Ce ( = transition metal; = pnictogen) family wherein an alkali cation replaces…
Ionic modulation at the LaAlO/KTaO interface for extreme high-mobility two-dimensional electron gas
H. Yan, S. W. Zeng, K. Rubi +5
Due to the coexistence of many emergent phenomena, including 2D superconductivity and a large Rashba spin-orbit coupling, 5d transition metal oxides based two-dimensional electron…
Disentangling electrical switching of antiferromagnetic NiO using high magnetic fields
Casper Floris Schippers, Michał J. Grzybowski, Km Rubi +5
Recent demonstrations of the electrical switching of antiferromagnets (AFs) have given an enormous impulse to the field of AF spintronics. Many of these observations are plagued by…
Effect of phonon anharmonicity on ferroelectricity in EuxBa1-xTiO3
Bommareddy Poojitha, Km Rubi, Soumya Sarkar +3
Investigating the competition between ferroelectric ordering and quantum fluctuations is essential to tailor the desired functionalities of mixed ferroelectric and incipient ferroe…
High-quality Two-Dimensional Electron Gas in Undoped InSb Quantum Wells
Zijin Lei, Erik Cheah, Km Rubi +7
We report on transport experiments through high-mobility gate-tunable undoped InSb QWs. Due to the elimination of any Si modulation doping, the gate-defined two-dimensional electro…
Electrical switching of antiferromagnetic CoO | Pt across the Néel temperature
M. J. Grzybowski, C. F. Schippers, M. E. Bal +5
One of the most important challenges in antiferromagnetic spintronics is the read-out of the Néel vector state. High current densities up to 10 Acm used in the electrica…
Antiferromagnetic Hysteresis above the Spin Flop Field
M. J. Grzybowski, C. F. Schippers, O. Gomonay +11
Magnetocrystalline anisotropy is essential in the physics of antiferromagnets and commonly treated as a constant, not depending on an external magnetic field. However, we demonstra…
Quantum oscillations in an optically-illuminated two-dimensional electron system at the LaAlO/SrTiO interface
I. Leermakers, K. Rubi, M. Yang +9
We have investigated the illumination effect on the magnetotransport properties of a two-dimensional electron system at the LaAlO/SrTiO interface. The illumination signific…
Electronic subbands in the a-LaAlO/KTaO interface revealed by quantum oscillations in high magnetic fields
Km Rubi, Shengwei Zeng, Femke Bangma +4
Investigating Shubnikov-de Haas (SdH) oscillations in high magnetic fields, we experimentally infer the electronic band structure of the quasi-two-dimensional electron gas (2DEG) a…
Fractional quantum Hall effect in CVD-grown graphene
M. Schmitz, T. Ouaj, Z. Winter +6
We show the emergence of fractional quantum Hall states in dry-transferred chemical vapor deposition (CVD) derived graphene assembled into heterostructures for magnetic fields from…
Electronic g-factor and Magneto-transport in InSb Quantum Wells
Zijin Lei, Christian A. Lehner, Km Rubi +10
High mobility InSb quantum wells with tunable carrier densities are investigated by transport experiments in magnetic fields tilted with respect to the sample normal. We employ the…
Strong Electron-Phonon Interaction and Colossal Magnetoresistance in EuTiO
Ruofan Chen, Ji-Chang Ren, Km Rubi +2
At low temperatures, EuTiO system has very large resistivities and exhibits colossal magnetoresistance. Based on a first principle calculation and the dynamical mean-field theo…
Colossal magnetoresistance over a wide temperature range in Eu0.99La0.01TiO3
Km Rubi, R. Mahendiran
We report occurrence of large magnetoresistance in lightly doped antiferromagnetic paraelectric EuTiO3. Reports of magnetoresistance in rare-earth titanates (RTiO3 oxides) are very…
Large adiabatic temperature and magnetic entropy changes in EuTiO3
A. Midya, P. Mandal, Km Rubi +5
We have investigated the magnetocaloric effect in single and polycrystalline samples of quantum paraelectric EuTiO3 by magnetization and heat capacity measurements. Single crystall…
Giant magnetocaloric effect in magnetoelectric Eu1-xBaxTiO3
Km Rubi, Pawan Kumar, D. V. Maheswar Repaka +3
We report the magnetic entropy change (Delta Sm) in magnetoelectric Eu1-xBaxTiO3 for x = 0.1- 0.9. We find - delta Sm = 11 (40) J/kg.K in x = 0.1 for a field change of 1 (5) Tesla…