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We study how the non-Fermi-liquid two-phase state reveals itself in transport properties of high-mobility Si-MOSFETs. We have found features in zero-field transport, magnetotransport, and thermodynamic spin magnetization in a 2D correlated…

Strongly Correlated Electrons · Physics 2016-06-28 L. A. Morgun , A. Yu. Kuntsevich , V. M. Pudalov

Electronic structure calculations on the low dimensional spin-1/2 compound TiOCl were performed at several pressures in the orthorhombic phase, finding that the structure is quasi-one-dimensional. The Ti3+ (d1) ions have one t2g orbital…

Strongly Correlated Electrons · Physics 2010-12-15 A. Piñeiro , V. Pardo , D. Baldomir , S. Blanco-Canosa , F. Rivadulla , J. E. Arias , J. Rivas

The highly insulating antiferromagnetic phase of the magnetic- organic conductor lambda-(BETS)2FeCl4 has been probed by resonant mm wave methods vs. magnetic field, temperature, and frequency. Our results show evidence for magnetic…

Strongly Correlated Electrons · Physics 2007-05-23 I. Rutel , S. Okubo , H. Ohta , H. Tanaka , H. Kobayashi , J. Brooks

In a previous work a model was proposed for the phase transitions of crystals with localized magnetic moments which at low temperature have a "conical" arrangement that at higher T transforms into a more symmetrical structure (depending on…

Statistical Mechanics · Physics 2009-11-13 Vittorio Massidda

We use the self-consistent harmonic approximation (SSCHA) with machine learning interatomic potentials to calculate the effect of $^{18}$O substitution on the properties of quantum paraelectric SrTiO$_3$ (STO). We find that calculations…

Materials Science · Physics 2025-08-15 Jonathan Schmidt , Nicola A. Spaldin

LaAlO3 and SrTiO3 are insulating, nonmagnetic oxides, yet the interface between them exhibits a two-dimensional electron system with high electron mobility,1 superconductivity at low temperatures,2-6 and electric-field-tuned metal-insulator…

Superconductivity · Physics 2015-05-30 J. A. Bert , B. Kalisky , C. Bell , M. Kim , Y. Hikita , H. Y. Hwang , K. A. Moler

A first-principles atomic orbital-based electronic structure method is used to investigate the low index surfaces of rutile Titanium Dioxide. The method is relatively cheap in computational terms, making it attractive for the study of oxide…

Materials Science · Physics 2009-10-28 O. Gulseren , R. James , D. W. Bullett

CaFe2As2 exhibits collapsed tetragonal (cT) structure and varied exotic behavior under pressure at low temperatures that led to debate on linking the structural changes to its exceptional electronic properties like superconductivity,…

Superconductivity · Physics 2017-12-12 Khadiza Ali , Kalobaran Maiti

We present a detailed investigation of the magnetic properties of the spin-$\frac{3}{2}$ system Li$_2$Co(WO$_4$)$_2$ by means of magnetic susceptibility and specific heat. Our experimental results show that in Li$_2$Co(WO$_4$)$_2$ a…

Strongly Correlated Electrons · Physics 2014-11-25 I. Panneer Muthuselvam , R. Sankar , A. V. Ushakov , G. Narsinga Rao , Sergey V. Streltsov , F. C. Chou

In this research paper, we investigated the structural, electronic, and magnetic features of titanium atom substituting calciumatom in rock salt structure of CaS to explore the new dilute magnetic semiconductor compounds. The calculations…

Materials Science · Physics 2022-02-16 Meryem Ziati , Hamid Ez-Zahraouy

The Dirac-like surface states of the topological insulators (TIs) are protected by time reversal symmetry (TRS) and exhibit a host of novel properties. Introducing magnetism into TI, which breaks the TRS, is expected to create exotic…

A systematic study is performed on the spinel oxide, i.e. LiTi2O4 thin films oriented along [111]-, [110]-, and [001]-directions, to reveal the crystallographic dependence of transport properties. With decreasing temperature, the LiTi2O4…

Superconductivity · Physics 2016-08-25 Yanli Jia , Ge He , Heshan Yu , Wei Hu , Zhenzhong Yang , Jinan Shi , Zefeng Lin , Jie Yuan , Beiyi Zhu , Kai Liu , Lin Gu , Hong Li , Kui Jin

We present results of electrical conduction studies of Ti/TiOx/Ti planar structures prepared by tip-induced local anodic oxidation (LAO) of titanium thin films. The prepared structures have shown almost linear I-V curves at temperatures…

Materials Science · Physics 2020-11-09 Marianna Batkovaa , Ivan Batko

The magnetic properties of ThCr_2Si_2-type single crystals ACo_2Se_2 (A = K, Rb and Cs) have been investigated by magnetic susceptibility and isothermal magnetization measurements at various temperatures. The ferromagnetic phase transition…

Superconductivity · Physics 2013-08-15 Jinhu Yang , Bin Chen , Hangdong Wang , Qianhui Mao , Masaki Imai , Kazuyoshi Yoshimura , Minghu Fang

The diverse functionality emerging at oxide interfaces calls for a fundamental understanding of the mechanisms and control parameters of electronic reconstructions. Here, we explore the evolution of electronic phases in…

Strongly Correlated Electrons · Physics 2015-01-19 David Doennig , Rossitza Pentcheva

We explore the magnetically-ordered ground state of the isovalently-substituted Mott-insulator Y$_{1-x}$La$_{x}$TiO$_{3}$ for $x$ $\leq$ 0.3 via single crystal growth, magnetometry, neutron diffraction, x-ray magnetic circular dichroism…

The tetragonal compound UPt2Si2 has been characterised as a moderately mass enhanced system with an antiferromagnetic ground state below T_N = 32 K. Here, we present an extensive study of the behavior in high magnetic fields. We have…

We develop a procedure to determine the portion of exact Hartree-Fock exchange interaction contained in a hybrid density functional to treat the range of electronic correlation governing the physics of a system as a function of a…

Materials Science · Physics 2016-02-26 Pablo Rivero , Vincent Meunier , William Shelton

Titanates with the perovskite structure, including ferroelectrics (e.g., BaTiO$_3$) and ferromagnetic ones (e.g., YTiO$_3$), are important functional materials. Recent theoretical studies predicted multiferroic states in strained EuTiO$_3$…

Materials Science · Physics 2015-12-14 Ming An , Huimin Zhang , Yakui Weng , Yang Zhang , Shuai Dong

The combination of magnetic symmetries and electronic band topology provides a promising route for realizing topologically nontrivial quasiparticles, and the manipulation of magnetic structures may enable the switching between topological…

Strongly Correlated Electrons · Physics 2022-06-22 Feng Du , Lin Yang , Zhiyong Nie , Ninghua Wu , Yong Li , Shuaishuai Luo , Ye Chen , Dajun Su , Michael Smidman , Youguo Shi , Chao Cao , Frank Steglich , Yu Song , Huiqiu Yuan
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