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Antiferromagnetic EuCd$_2$P$_2$ has attracted considerable attention due to its unconventional (magneto)transport properties. At a temperature $T_{\rm peak}$ significantly above the magnetic ordering temperature $T_\textrm{N} = 11\,$K a…

`Strange' metals that do not follow the predictions of Fermi liquid theory are prevalent in materials that feature superconductivity arising from electron interactions. In recent years, it has been hypothesized that spatial randomness in…

Strongly Correlated Electrons · Physics 2025-09-15 Aavishkar A. Patel , Peter Lunts , Michael S. Albergo

Detailed experiments on single-crystal (VO)_2P_2O_7 continue to reveal new and unexpected features. We show that a model composed of two, independent planes of spin chains with frustrated magnetic coupling is consistent with nuclear…

Strongly Correlated Electrons · Physics 2009-10-31 G. S. Uhrig , B. Normand

The delafossite metals PdCoO$_{2}$, PtCoO$_{2}$ and PdCrO$_{2}$ are among the highest conductivity materials known, with low temperature mean free paths of tens of microns in the best as-grown single crystals. A key question is whether…

We report on a combined structural and magnetotransport study of Hall bar devices of various lateral dimensions patterned side-by-side on epitaxial PdCoO$_2$ thin films. We study the effects of both the thickness of the PdCoO$_2$ film and…

Magnetic materials are usually divided into two classes: those with localised magnetic moments, and those with itinerant charge carriers. We present a comprehensive experimental (spectroscopic ellipsomerty) and theoretical study to…

Strongly Correlated Electrons · Physics 2013-07-30 N. N. Kovaleva , K. I. Kugel , A. V. Bazhenov , T. N. Fursova , W. Loeser , Y. Xu , G. Behr , F. V. Kusmartsev

We report magnetoresistance (MR) measurements on MgB2 and the corresponding full account from ab-initio calculations; we suggest that this combination can be a useful tool to probe electron- phonon coupling. We obtain good quantitative…

The possibility of the strong electron-electron interaction driven insulating phase from the metallic phase in two-dimensions has been suggested for clean systems without intentional disorder, but its rigorous demonstration is still…

Strongly Correlated Electrons · Physics 2021-01-04 Byoung Hee Moon , Gang Hee Han , Miloš M. Radonjić , Hyunjin Ji , Vladimir Dobrosavljević

Transition-metal dichalcogenides (TMDCs) are important class of two-dimensional (2D) layered materials for electronic and optoelectronic applications, due to their ultimate body thickness, sizable and tunable bandgap, and decent theoretical…

Materials Science · Physics 2017-01-10 Zhihao Yu , Zhun-Yong Ong , Songlin Li , Jian-Bin Xu , Gang Zhang , Yong-Wei Zhang , Yi Shi , Xinran Wang

We present a technique to calculate the transport properties through one-dimensional models of molecular wires. The calculations include inelastic electron scattering due to electron-lattice interaction. The coupling between the electron…

Condensed Matter · Physics 2009-10-31 H. Ness , S. A. Shevlin , A. J. Fisher

Electronic and thermal transport properties in two-dimensional (2D) semiconductors have been extensively investigated due to their potential to miniaturize transistors. Microscopically, electron-phonon interactions are considered the…

Mesoscale and Nanoscale Physics · Physics 2024-11-25 Yujie Quan , Bolin Liao

We study the low temperature conductivity of the electron accumulation layer induced by the very strong electric field at the surface of $\text{SrTiO}_3$ sample. Due to the strongly nonlinear lattice dielectric response, the…

Mesoscale and Nanoscale Physics · Physics 2016-07-21 Han Fu , K. V. Reich , B. I. Shklovskii

The crossover between two different conduction mechanisms (variable range and small polaron hoppings) is probed utilizing a conjunction of thermally varying conductivity and impedance in polycrystalline Pr2NiTiO6 (PNT). A combination of…

Materials Science · Physics 2019-09-26 Moumin Rudra , Saswata Halder , Sujoy Saha , Alo Dutta , T. P. Sinha

We present a theoretical study of electron-phonon scattering effects in thin films made of a strong topological insulator. Phonons are modelled by isotropic elastic continuum theory with stress-free boundary conditions, and the interaction…

Mesoscale and Nanoscale Physics · Physics 2012-01-26 Sébastien Giraud , Arijit Kundu , Reinhold Egger

We study the temperature evolution of the non-linear oscillatory magnetoresistance in a high-mobility two-dimensional electron system subject to a strong dc electric field. We find that the decay of the oscillation amplitude with increasing…

Mesoscale and Nanoscale Physics · Physics 2009-04-29 A. T. Hatke , M. A. Zudov , L. N. Pfeiffer , K. W. West

We report a detailed scaling analysis of resistivity \rho(T,n) measured for several high-mobility 2D electron systems in the vicinity of the 2D metal-insulator transition. We analyzed the data using the two parameter scaling approach and…

Strongly Correlated Electrons · Physics 2013-03-08 D. A. Knyazev , O. E. Omel'yanovskii , V. M. Pudalov , I. S. Burmistrov

Inelastic electron scattering by the adsorbate covered Pt(100) single crystal surface is studied by Disappearance Potential Spectroscopy and density of states (DOS) calculations. Two peculiar channels of elastic electron consumption are…

Materials Science · Physics 2012-09-17 A. R. Cholach , V. M. Tapilin

Charge transport in doped quantum paralectrics (QPs) presents a number of puzzles, including a pronounced $T^2$ regime in the resistivity. We analyze charge transport in a QP within a model of electrons coupled to a soft transverse optical…

Strongly Correlated Electrons · Physics 2021-03-03 Abhishek Kumar , Vladimir I. Yudson , Dmitrii L. Maslov

When electron-electron interaction dominates over other electronic energy scales, exotic, collective phenomena often emerge out of seemingly ordinary matter. The strongly correlated phenomena, such as quantum spin liquid and unconventional…

We report the temperature and magnetic field dependence of resistivity ($\rho$) for single-crystalline EuTi$_{1-x}$Nb$_{x}$O$_3$ ($x$=0.10$-$0.20), an itinerant ferromagnetic system with very low Curie temperature ($T_C$). The detailed…

Strongly Correlated Electrons · Physics 2018-10-24 S. Roy , N. Khan , P. Mandal