Results 111 to 120 of about 3,968 (226)

Quasilinear quantum magnetoresistance in pressure-induced nonsymmorphic superconductor chromium arsenide [PDF]

, 2017
In conventional metals, modification of electron trajectories under magnetic field gives rise to a magnetoresistance that varies quadratically at low field, followed by a saturation at high field for closed orbits on the Fermi surface.
E. Matsuoka, Yanase, Y., H. Kotegawa, Yu, W. C., Swee K. Goh, Q. Niu, Y. Yanase, Z. L. Lim, Goh, Swee K., W. C. Yu, Tou, H., H. Sugawara, Niu, Q., K. Y. Yip, H. Tou, Matsuoka, E., Sugawara, H., Lim, Z. L., Kotegawa, H., Yip, K. Y.   +19 more
core   +1 more source

Fermi surface topology and signature of surface Dirac nodes in LaBi

Scientific Reports, 2017
Novel topological state of matter is one of the rapidly growing fields in condensed matter physics research in recent times. While these materials are fascinating from the aspect of fundamental physics of relativistic particles, their exotic transport ...
Ratnadwip Singha, Biswarup Satpati, Prabhat Mandal   +2 more
doaj   +1 more source

Strain Tuning the Occupation of Candidate Topological Weyl States in W‐Doped MoTe2

Advanced Science, EarlyView.
The present study investigates strain‐induced modifications of the electronic structure in the Weyl semimetal Td${\rm T}_d$‐Mo0.91W0.09Te2${\mathrm{Mo}}_{0.91}{\mathrm{W}}_{0.09}{\mathrm{Te}}_{2}$ using hard X‐ray angle‐resolved photoemission spectroscopy.
Amon Lanz, Olena Tkach, Yaryna Lytvynenko, Florian Diekmann, Harshit Agarwal, Sofia Michaela Souliou, Mehdi Frachet, Michael Merz, Sergii V. Chernov, Andrei Gloskovskii, Volkmar Koller, Dmytro Kutnyakhov, Moritz Hoesch, Christoph Schlueter, Philipp Rüssmann, Yuriy Mokrousov, Matthieu Le Tacon, Kai Rossnagel, Jure Demsar, Gerd Schönhense, Hans‐Joachim Elmers, Olena Fedchenko   +21 more
wiley   +1 more source

Gate-controlled linear magnetoresistance in thin Bi₂Se₃ sheets [PDF]

, 2012
We explore the emergence of linear magnetoresistance in thin Bi2Se3 sheets upon tuning the carrier density using a back gate. With increasingly negative gate voltage, a pronounced magnetoresistance of similar to 100% is observed, while the associated B ...
Gehring, P., Gao, B., Kern, K., Burghard, M.   +3 more
core  

Intrinsic negative magnetoresistance from the chiral anomaly of multifold fermions

Nature Communications
The chiral anomaly - a hallmark of chiral spin-1/2 Weyl fermions - is an imbalance between left- and right-moving particles that underpins phenomena such as particle decay and negative longitudinal magnetoresistance in Weyl semimetals. The discovery that
Federico Balduini, Alan Molinari, Lorenzo Rocchino, Vicky Hasse, Claudia Felser, Marilyne Sousa, Cezar Zota, Heinz Schmid, Adolfo G. Grushin, Bernd Gotsmann   +9 more
doaj   +1 more source

Chiral‐Induced Spin Selectivity Effect in a 1 nm Thin 1,1′‐Binaphthyl‐2,2′‐diyl Hydrogenphosphate Self‐Assembled Monolayer on Nickel Oxide

Advanced Science, EarlyView.
A self‐assembled monolayer (≈0.9 nm) of an axially chiral binaphthol phosphoric acid derivative on a ferromagnetic Ni/NiOx substrate shows chiral‐induced spin selectivity (CISS) magnetoresistance of 50%–80%. This thermally and chemically robust functional stack shows the way towards practical spintronic devices based on the CISS effect.
Abin Nas Nalakath, Christian Pfeiffer, Anu Gupta, Franziska Schölzel, Michael Zharnikov, Georgeta Salvan, Ron Naaman, Marc Tornow, Peer Kirsch   +8 more
wiley   +1 more source

Spin transport in benzofurane bithiophene based organic spin valves

AIP Advances, 2014
In this paper we present spin transport in organic spin-valves using benzofurane bithiophene (BF3) as spacer layer between NiFe and Co ferromagnetic electrodes.
Mathieu Palosse, Isabelle Séguy, Élena Bedel-Pereira, Christina Villeneuve-Faure, Charlotte Mallet, Pierre Frère, Bénédicte Warot-Fonrose, Nicolas Biziere, Jean-François Bobo   +8 more
doaj   +1 more source

Atomically Modulating Competing Exchange Interactions in Centrosymmetric Skyrmion Hosts GdRu2X2 (X = Si and Ge)

Advanced Electronic Materials, EarlyView.
Our work bridges the gap between skyrmion discovery and material design by demonstrating how atomic‐scale control of exchange interactions enables tunable skyrmion phase transitions in centrosymmetric magnetic metals. ABSTRACT Magnetic skyrmions are topologically protected spin states that hold promise for shaping the future of electronics.
Dasuni N. Rathnaweera, Xudong Huai, K. Ramesh Kumar, Michał J. Winiarski, Tomasz Klimczuk, Allana G. Iwanicki, Satya K. Kushwaha, Martin Mourigal, Tyrel M. McQueen, Thao T. Tran   +9 more
wiley   +1 more source

Large linear magnetoresistance in the Dirac semimetal TlBiSSe [PDF]

, 2015
The mixed-chalcogenide compound TlBiSSe realizes a three-dimensional (3D) Dirac semimetal state. In clean, low-carrier-density single crystals of this material, we found Shubnikov–de Haas oscillations to signify its 3D Dirac nature. Moreover, we observed
Ando, Y, Novak, M, Segawa, K, Sasaki, S
core   +1 more source

Enhancement of carrier transport characteristic in the Sb2Se2Te topological insulators by N2 adsorption

Scientific Reports, 2017
The carrier transport characteristics of Sb2Se2Te topological insulators were investigated, after exposure to different levels of nitrogen gas. The magnetoresistance (MR) slope for the Sb2Se2Te crystal increased by approximately 100% at 10 K after 2-days
Shiu-Ming Huang, Shih-Jhe Huang, Ching Hsu, Paritosh V. Wadekar, You-Jhih Yan, Shih-Hsun Yu, Mitch Chou   +6 more
doaj   +1 more source