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Novel interplay of spin-orbit coupling and electron correlations in complex Ir oxides recently emerged as a new paradigm for correlated electron physics. Because of a large spin-orbit coupling of ~0.5 eV, which is comparable to the transfer…

Strongly Correlated Electrons · Physics 2015-06-22 Jobu Matsuno , Kota Ihara , Shugen Yamamura , Hiroki Wadati , Kenji Ishii , V. Vijay Shankar , Hae-Young Kee , Hidenori Takagi

Transport measurements on the two dimensional electron system in Al2O3 SrTiO3 heterostructures indicate significant noncrystalline anisotropic behavior below T = 30 K. Lattice dislocations in SrTiO3 and interfacial steps are suggested to be…

Strongly Correlated Electrons · Physics 2017-08-02 K. Wolff , R. Schäfer , M. Meffert , D. Gerthsen , R. Schneider , D. Fuchs

We investigate the quantum phase transitions of a two-dimensional Bose-Hubbard model in the presence of a Rashba spin-orbit coupling with and without thermal fluctuations. The interplay of single-particle hopping, strength of spin-orbit…

Quantum Gases · Physics 2021-12-14 Kuldeep Suthar , Pardeep Kaur , Sandeep Gautam , Dilip Angom

We report a first principles computational analysis of two phonon-mediated superconductors, In$_{5}$Bi$_{3}$ and In$_{5}$Sb$_{3}$. We show that spin-orbit coupling leads to splitting of electron bands around the Fermi energy, resulting in a…

Superconductivity · Physics 2024-10-29 Yao Wei , Siyu Chen , Bartomeu Monserrat

Orthorhombic SrIrO3 subjected to strain show tunable transport properties. With underlying symmetry remaining invariant, these properties are associated with IrO6 octahedral tilting. Adopting to first-principles methods, the effects of…

Materials Science · Physics 2015-09-02 Vijeta Singh , J. J. Pulikkotil

The recent experimental discovery of three-dimensional (3D) materials hosting a strong Rashba spin-orbit coupling calls for the theoretical investigation of their transport properties. Here we study the zero temperature dc conductivity of a…

Strongly Correlated Electrons · Physics 2017-06-01 Valentina Brosco , Claudio Grimaldi

In this study, we investigate the spin susceptibility in the superconducting state of a multilayer system with a layer-dependent Rashba spin-orbit coupling, representing a locally non-centrosymmetric superconductor. We show that the charge…

Superconductivity · Physics 2013-03-07 Daisuke Maruyama , Manfred Sigrist , Youichi Yanase

Anisotropic magnetoresistance and negative magnetoresistance for in-plane fields are compared for the LaAlO3 /SrTiO3 interface and the symmetric Nb-doped SrTiO3 heterostructure. Both effects are exceptionally strong in LaAlO3 /SrTiO3 . We…

Strongly Correlated Electrons · Physics 2015-06-05 E. Flekser , M. Ben Shalom , M. Kim , C. Bell , Y. Hikita , H. Y. Hwang , Y. Dagan

We present results on experimental studies of spin current, measured under spin pumping at ferromag-netic resonance in wide frequency band 2-20 GHz for SrIrO3/La0.7Sr0.3MnO3 heterostructures fabricated by RF magnetron sputtering at high…

We investigate the detailed electronic structure of PrCoO$_3$ and its temperature evolution using state-of-the-art photoemission spectroscopy and ab initio band structure calculations. We observe that in addition to the correlation effect,…

Strongly Correlated Electrons · Physics 2009-11-13 S. K. Pandey , Swapnil Patil , V. R. R. Medicherla , R. S. Singh , Kalobaran Maiti

We report the effect of oxygen pressure during growth ($P_{O_{2}}$) on the electronic and magnetic properties of PrAlO$_3$ films grown on $\rm TiO_{2}$-terminated SrTiO$_3$ substrates. Resistivity measurements show an increase in the sheet…

Strongly Correlated Electrons · Physics 2017-10-30 Shirin Mozaffari , Samaresh Guchhait , John T. Markert

Spin-orbit torques (SOT) in thin film heterostructures originate from strong spin-orbit interactions (SOI) that, in the bulk, generate a spin current as the result of extrinsic spin-dependent, skew or/and side-jump, scattering, or in the…

We analyze the temperature dependence of the electron spin resonance linewidth above the critical region in exchange-coupled magnetic insulators. The focus is on separating the contributions to the linewidth from spin-spin interactions,…

Materials Science · Physics 2017-06-27 M. Acikgoz , D. L. Huber

Oxide heterointerfaces constitute a rich platform for realizing novel functionalities in condensed matter. A key aspect is the strong link between structural and electronic properties, which can be modified by interfacing materials with…

Materials Science · Physics 2021-07-09 T. C. van Thiel , J. Fowlie , C. Autieri , N. Manca , M. Šiškins , D. Afanasiev , S. Gariglio , A. D. Caviglia

The spin Seebeck effect is useful for probing the spin correlations and magnetic order in magnetic insulators. Here, we report a strong longitudinal spin Seebeck effect (LSSE) in antiferromagnetic V2O3 thin films. The LSSE response at…

Mesoscale and Nanoscale Physics · Physics 2026-01-06 Renjie Luo , Tanner J. Legvold , Gage Eichman , Henry Navarro , Ali C. Basaran , Erbin Qiu , Ivan K. Schuller , Douglas Natelson

The isospin-phonon coupling in Sr2IrO4 is investigated by temperature dependent phonon Raman scattering. Anomalous behavior in the frequency of all studied optical phonons is observed below the magnetic transition temperature TN ~240 K. The…

Strongly Correlated Electrons · Physics 2019-04-23 Kousik Samanta , Danilo Rigitano , Pascoal Jose Giglio Pagliuso , Eduardo Granado

Spin-polarized scanning tunneling microscopy investigations reveal a significant increase of the magnetic period of spin spirals in three-atomic-layer-thick Fe films on Ir(111), from about 4nm at 8K to about 65nm at room temperature. We…

Mesoscale and Nanoscale Physics · Physics 2017-07-26 Aurore Finco , Levente Rózsa , Pin-Jui Hsu , André Kubetzka , Elena Vedmedenko , Kirsten von Bergmann , Roland Wiesendanger

REBa$_{2}$Cu$_{3}$O$_{x}$ films can achieve remarkably high critical current density values by the incorporation of insulating nanoparticles. A particular interesting case concerns BaZrO$_{3}$ (BZO) nanorods, whose strongly correlated…

Superconductivity · Physics 2015-06-03 A. Xu , V. Braccini , J. Jaroszynski , Y. Xin , D. C. Larbalestier

We investigated the Rashba spin splittings in a compressive-strained SrTiO$_3$(001) ultra thin-film using first-principles calculations. The effect of the polarization due to the compressive strain leads to the 2DEG with large Rashba spin…

Materials Science · Physics 2018-08-07 Naoya Yamaguchi , Fumiyuki Ishii

Spin-orbit torques (SOTs) from transition metal oxides (TMOs) in conjunction with magnetic materials have recently attracted tremendous attention for realizing high-efficient spintronic devices. SrRuO3 is a promising candidate among TMOs…

Materials Science · Physics 2024-03-04 Sheng Li , Bin Lao , Zengxing Lu , Xuan Zheng , Kenan Zhao , Liguang Gong , Tao Tang , Keyi Wu , Run-Wei Li , Zhiming Wang