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The higher order topological insulator (HOTI) has enticed enormous research interests owing to its novelty in supporting gapless states along the hinges of the crystal. Despite several theoretical predictions, enough experimental…

Hybrid magnonic quantum systems have drawn increased attention in recent years for coherent quantum information processing, but too large magnetic damping is a persistent concern when metallic magnets are used. Their intrinsic damping is…

Materials Science · Physics 2024-01-17 Zhihao Jiang , Axel Hoffmann , André Schleife

The discovery of a new family of high Tc materials, the iron arsenides (FeAs), has led to a resurgence of interest in superconductivity. Several important traits of these materials are now apparent, for example, layers of iron tetrahedrally…

High quality WSe2 films have been grown on bilayer graphene (BLG) with layer-by-layer control of thickness using molecular beam epitaxy (MBE). The combination of angle-resolved photoemission (ARPES), scanning tunneling…

Neodymium nickelate, NdNiO3 attracts attraction due to the simultaneous occurrence of several phase transitions around the same temperature. The electronic properties of NdNiO3 are extremely complex as structural distortion, electron…

Materials Science · Physics 2022-09-07 Raktima Basu , Reshma Kumawat , Mrinmay Sahu , Abu Bakkar Miah , Partha Mitra , Goutam Dev Mukherjee

SmB6 is a strongly correlated material that has been attributed as a topological insulator and a Kondo insulator. Recent studies have found the topological surface states and low temperature insulating character to be profoundly robust…

Magnetic interfaces and the phenomena arising from them drive both the design of modern spintronics and fundamental research. Recently, it was revealed that through designing magnetic frustration in configurationally complex entropy…

Magnetism, when combined with an unconventional electronic band structure, can give rise to forefront electronic properties such as the quantum anomalous Hall effect, axion electrodynamics, and Majorana fermions. Here we report the…

Superconductivity emerges from the cuprate antiferromagnetic Mott state with hole doping. The resulting electronic structure is not understood, although changes in the state of oxygen atoms appear paramount. Hole doping first destroys the…

Superconductivity · Physics 2012-05-24 Y. Kohsaka , T. Hanaguri , M. Azuma , M. Takano , J. C. Davis , H. Takagi

We consider dilute magnetic doping in the surface of a three dimensional topological insulator where a two dimensional Dirac electron gas resides. We find that exchange coupling between magnetic atoms and the Dirac electrons has a strong…

Mesoscale and Nanoscale Physics · Physics 2015-05-18 A. S. Núñez , J. Fernández-Rossier

Superconductivity in the heavy-fermion metal UTe2 survives the application of very high magnetic fields, presenting both an intriguing puzzle and an experimental challenge. The strong, non-perturbative influence of the magnetic field…

Superconductivity · Physics 2025-04-23 L. Zhang , C. Guo , D. Graf , C. Putzke , M. M. Bordelon , E. D. Bauer , S. M. Thomas , F. Ronning , P. F. S. Rosa , P. J. W. Moll

Magnetic doping with transition metal ions is the most widely used approach to break timereversal symmetry in a topological insulator, a prerequisite for unlocking the TIs exotic potential. Recently, we reported the doping of Bi2Te3 thin…

Structural, resistivity, thermoelectric power and magneto-transport properties of Cu doped Bi2Te3 topological insulators have been investigated. The occurrence of the tuning of charge carriers from n type to p type by Cu doping at Te sites…

Materials Science · Physics 2016-09-22 Abhishek Singh , Rahul Singh , A. Lakhani , T. Patel , G. S. Okram , V. Ganeshan , A. K. Ghosh , Sandip Chatterjee

The 2D superconductor-insulator transition in disordered ultrathin amorphous bismuth films has been tuned both by electrostatic electron doping using the electric field effect and by the application of parallel magnetic fields.…

Superconductivity · Physics 2009-11-11 Kevin A. Parendo , K. H. Sarwa B. Tan , A. M. Goldman

The mechanism of the peculiar transport properties around the magnetic ordering temperature of semiconducting antiferromagnetic EuCd$_2$P$_2$ is not yet understood. With a huge peak in the resistivity observed above the N\'eel temperature,…

Analysis of the band structure of TiS$_3$ single-layers suggests the possibility of changing their physical behaviour by injecting electron carriers. The anisotropy of the valence and conduction bands is explained in terms of their complex…

Materials Science · Physics 2017-05-10 J. A. Silva-Guillén , E. Canadell , P. Ordejón , F. Guinea , R. Roldán

Aliovalent rare earth substitution into the alkaline earth site of CaFe2As2 single-crystals is used to fine-tune structural, magnetic and electronic properties of this iron-based superconducting system. Neutron and single crystal x-ray…

Superconductivity · Physics 2015-03-19 S. R. Saha , N. P. Butch , T. Drye , J. Magill , S. Ziemak , K. Kirshenbaum , P. Y. Zavalij , J. W. Lynn , J. Paglione

High resolution laser-based angle-resolved photoemission measurements have been carried out on Bi2Sr2CuO6+d superconductor covering a wide doping range from heavily underdoped to heavily overdoped samples. Two obvious energy scales are…

We study magnetotransport in a rare earth doped topological insulator, Sm0.1Sb1.9Te3 single crystals, under magnetic fields up to 14 T. It is found that that the crystals exhibit Shubnikov de Haas oscillations in their magneto-transport…

Materials Science · Physics 2019-07-11 Zengji Yue , Weiyao Zhao , David Cortie , Zhi Li , Guangsai Yang , Xiaolin Wang

Substitutional doping with transition metals is carried out in the Lepidocrocite phase - the stable monolayer geometry of TiO$_2$, using density functional theory (DFT) methods. The doping is carried out at the differently coordinated O…

Materials Science · Physics 2024-10-14 Kati Asikainen , Matti Alatalo , Marko Huttula , S. Assa Aravindh