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Studies of angle-dependent magnetoresistance oscillations (AMRO) in the interlayer conductivity of layered metals have generally considered semi-classical electron transport. We consider a quantum correction to the semi-classical…

Mesoscale and Nanoscale Physics · Physics 2018-09-21 Malcolm P. Kennett , Ross. H. McKenzie

Understanding heat transport in organic semiconductors is of fundamental and practical relevance. Therefore, we study the lattice thermal conductivities of a series of (oligo)acenes, where an increasing number of rings per molecule leads to…

Materials Science · Physics 2024-12-09 Lukas Legenstein , Lukas Reicht , Sandro Wieser , Michele Simoncelli , Egbert Zojer

The ability to control electronic properties of a material by externally applied voltage is at the heart of modern electronics. In many cases, it is the so-called electric field effect that allows one to vary the carrier concentration in a…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 K. S. Novoselov , A. K. Geim , S. V. Morozov , S. V. Dubonos , Y. Zhang , D. Jiang

Electrical characterization of few-layer MoS2 based field effect transistors with Ti/Au electrodes is performed in the vacuum chamber of a scanning electron microscope in order to study the effects of electron beam irradiation on the…

Intrinsic electron- and hole-phonon interactions are investigated in monolayer transition metal dichalcogenides MX$_2$ (M=Mo,W; X=S,Se) based on a density functional theory formalism. Due to their structural similarities, all four materials…

Mesoscale and Nanoscale Physics · Physics 2015-06-22 Zhenghe Jin , Xiaodong Li , Jeffrey Thomas Mullen , Ki Wook Kim

We investigated transport, magnetotransport, and broadband optical properties of the half-Heusler compound YbPtBi. Hall measurements evidence two types of charge carriers: highly mobile electrons with a temperature-dependent concentration…

Strongly Correlated Electrons · Physics 2017-04-11 M. B. Schilling , A. Löhle , D. Neubauer , C. Shekhar , C. Felser , M. Dressel , A. V. Pronin

Indium-doped SnTe has been of interest because the system can exhibit both topological surface states and bulk superconductivity. While the enhancement of the superconducting transition temperature is established, the character of the…

Superconductivity · Physics 2018-08-13 Cheng Zhang , Xu-Gang He , Hang Chi , Ruidan Zhong , Wei Ku , Genda Gu , J. M. Tranquada , Qiang Li

Ambipolar charge carrier transport in Copper phthalocyanine (CuPc) is studied experimentally in field-effect transistors and metal-insulator-semiconductor diodes at various temperatures. The electronic structure and the transport properties…

Mesoscale and Nanoscale Physics · Physics 2015-03-13 C. Schuster , M. Kraus , A. Opitz , W. Brütting , U. Eckern

By comparing photoemission spectroscopy with a non-perturbative dynamical mean field theory extension to many-body ab initio calculations, we show in the prominent case of pentacene crystals that an excellent agreement with experiment for…

Materials Science · Physics 2012-11-28 S. Ciuchi , R. C. Hatch , H. Höchst , C. Faber , X. Blase , S. Fratini

Mobile impurities in cold atomic gases constitute a new platform for investigating polaron physics. Here we show that when impurity atoms interact with a two-dimensional Fermi gas with quadratic band touching the polaron picture may either…

Quantum Gases · Physics 2016-12-14 M. A. Caracanhas , R. G. Pereira

The properties of an electron in a typical solid are modified by the interaction with the crystal ions, leading to the formation of a quasiparticle: the polaron. Such polarons are often described using the Fr\"ohlich Hamiltonian, which…

Superconductivity · Physics 2021-05-12 Matthew Houtput , Jacques Tempere

We argue that the dominant charge carrier in glassy semiconducting alloys is a compound particle in the form of an electron or hole bound to an intimate pair of topological lattice defects; the particle is similar to the polaron solution of…

Mesoscale and Nanoscale Physics · Physics 2025-05-20 Arkady Kurnosov , Vassiliy Lubchenko

The Bose polaron has attracted theoretical and experimental interest because the mobile impurity is surrounded by a bath that undergoes a superfluid-to-normal phase transition. Although many theoretical works have studied this system in its…

Quantum Gases · Physics 2021-11-12 Gerard Pascual , Jordi Boronat

Transport properties provide important access to a solid's quasiparticles, such as quasiparticle density, mobility, and scattering. The transport of heat can be particularly revealing because, in principle, all types of excitations in a…

Strongly Correlated Electrons · Physics 2019-09-19 Christian Hess

We report on a systematic study of electronic transport in tetracene single crystals by means of space charge limited current spectroscopy and time of flight measurements. Both $I$-$V$ and time of flight measurements show that the…

Materials Science · Physics 2009-11-10 R. W. I. de Boer , M. Jochemsen , T. M. Klapwijk , A. F. Morpurgo , J. Niemax , A. K. Tripathi , J. Pflaum

We report a naturally-occurring two-dimensional material (graphene that can be viewed as a gigantic flat fullerene molecule, describe its electronic properties and demonstrate all-metallic field-effect transistor, which uniquely exhibits…

Organic semiconductors offer an unprecedented flexibility to control the electronic state of interfacial electronic systems. Here we present a first step in realizing organic charge transfer interfaces that combine both a large electrical…

Materials Science · Physics 2016-03-01 Yulia Krupskaya , Florian Rückerl , Martin Knupfer , Alberto F. Morpurgo

The controversy regarding the precise nature of the high-temperature phase of 1T-TiSe2 lasts for decades. It has intensified in recent times when new evidence for the excitonic origin of the low-temperature charge-density wave state started…

Semiconducting two-dimensional transition metal chalcogenide crystals have been regarded as the promising candidate for the future generation of transistor in modern electronics. However, how to fabricate those crystals into practical…

Mesoscale and Nanoscale Physics · Physics 2014-11-18 Xue Liu , Jin Hu , Chunlei Yue , Nicholas D. Della Fera , Yun Ling , Zhiqiang Mao , Jiang Wei

We report a detailed study of the electrical transport properties of single crystals of Pr$_4$Fe$_2$As$_2$Te$_{1-x}$O$_4$, a recently discovered iron-based superconductor. Resistivity, Hall effect and magnetoresistance are measured in a…

Superconductivity · Physics 2016-12-22 A. Pisoni , P. Szirmai , S. Katrych , B. Náfrádi , R. Gaál , J. Karpinski , L. Forró