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In this work, the spin pumping technique was employed to investigate the anomalous inverse spin Hall effect in BIG/NiO/Fe samples where BIG[(Bi,Tm)3(Fe,Ga)5O12] exhibits perpendicular magnetic anisotropy. Our results reveal an intriguing…

Mesoscale and Nanoscale Physics · Physics 2023-12-13 J. E. Abrão , A. R. Rodrigues , H. F. Ding , S. Bedanta , A. Azevedo

We have measured compressibility of a two-dimensional hole gas in p-GaAs/AlGaAs heterostructure, grown on a (100) surface, in the presence of a tilted magnetic field. It turns out that the parallel component of magnetic field affects…

Strongly Correlated Electrons · Physics 2007-05-23 Maryam Rahimi , M. R. Sakr , S. V. Kravchenko , S. C. Dultz , H. W. Jiang

Magnetoresistivity $\rho _{xx}$ and $\rho _{xy}$ and the acoustoelectronic effects are measured in $p$-Si/SiGe/Si with an impurity concentration $p$ = 2 $\times $ 10$^{11}$ cm$^{-2}$ in the temperature range 0.3-2.0 K and an tilted magnetic…

Mesoscale and Nanoscale Physics · Physics 2010-11-25 I. L. Drichko , I. Yu. Smirnov , A. V. Suslov , O. A. Mironov , D. R. Leadley

In this paper, we study a holographic description of weak measurements in conformal field theories (CFTs). Weak measurements can be viewed as a soft projection that interpolates between an identity operator and a projection operator, and…

High Energy Physics - Theory · Physics 2023-12-29 Xinyu Sun , Shao-Kai Jian

Due to a strong spin-orbit interaction and a large Land\'e g-factor, InSb plays an important role in research on Majorana fermions. To further explore novel properties of Majorana fermions, hybrid devices based on quantum wells are…

This work reports the measurement of electron $g$ factor anisotropy ($| \Delta g |$ = $| g_{001} - g_{1 \bar 1 0} |$) for phosphorous donor qubits in strained silicon (sSi = Si/Si$_{1-x}$Ge$_x$) environments. Multi-million-atom…

Mesoscale and Nanoscale Physics · Physics 2018-08-01 M. Usman , H. Huebl , A. R. Stegner , C. D. Hill , M. S. Brandt , L. C. L. Hollenberg

In this work, we probe the sensitivity of hole-spin properties to hole occupation number in a planar silicon double-quantum dot device fabricated on a 300 mm integrated platform. Using DC transport measurements, we investigate the g-tensor…

The determination and control of the electron $g$-factor in semiconductor quantum dots (QDs) are fundamental prerequisites in modern concepts of spintronics and spin-based quantum computation. We study the dependence of the $g$-factor on…

Mesoscale and Nanoscale Physics · Physics 2014-01-07 Samuel d'Hollosy , Gábor Fábián , Andreas Baumgartner , Jesper Nygård , Christian Schönenberger

The ratio of the Zeeman splitting to the cyclotron energy ($M=\Delta E_{\rm Z}/\hbar \omega_{\rm c}$) for hole-like carriers in bismuth has been quantified with a great precision by many experiments performed during the past five decades.…

Materials Science · Physics 2015-11-25 Yuki Fuseya , Zengwei Zhu , Benoît Fauqué , Woun Kang , Bertrand Lenoir , Kamran Behnia

We present a systematic study on the influence of epitaxial strain and hole concentration on the magnetic anisotropy in (Ga,Mn)As at 4.2 K. The strain was gradually varied over a wide range from tensile to compressive by growing a series of…

We report on a strong transport anisotropy in a 2D hole gas in a Ge/SiGe quantum well, which emerges only when both perpendicular and in-plane magnetic fields are present. The ratio of resistances, measured along and perpendicular to the…

Mesoscale and Nanoscale Physics · Physics 2015-11-18 Q. Shi , M. A. Zudov , C. Morrison , M. Myronov

We present experimental control of the magnetic anisotropy in a gadolinium iron garnet (GdIG) thin film from in-plane to perpendicular anisotropy by simply changing the sample temperature. The magnetic hysteresis loops obtained by SQUID…

Materials Science · Physics 2017-06-27 H. Maier-Flaig , S. Geprägs , Z. Qiu , E. Saitoh , R. Gross , M. Weiler , H. Huebl , S. T. B. Goennenwein

The rapid progress of hole spin qubits in group IV semiconductors has been driven by their potential for scalability. This is owed to the compatibility with industrial manufacturing standards, as well as the ease of operation and…

Mesoscale and Nanoscale Physics · Physics 2023-04-19 Angus Russell , Alexander Zotov , Ruichen Zhao , Andrew S. Dzurak , M. Fernando Gonzalez-Zalba , Alessandro Rossi

Spatial aspects in quantum mechanics are often difficult to model in geometrically intricate settings that are typical of mesoscopic physics. In such cases, predicting the device behaviors is a vital but difficult challenge. Transverse…

Mesoscale and Nanoscale Physics · Physics 2020-05-29 Dongsung T. Park , Seokyeong Lee , Uhjin Kim , Yunchul Chung , Hyoungsoon Choi , Hyung Kook Choi

The high-frequency (ac) conductivity of a high quality modulation doped GeSi/Ge/GeSi single quantum well structure with hole density $p$=6$\times$10$^{11}$cm$^{-2}$ was measured by the surface acoustic wave (SAW) technique at frequencies of…

Mesoscale and Nanoscale Physics · Physics 2014-11-14 I. L. Drichko , V. A. Malysh , I. Yu. Smirnov , L. E. Golub , S. A. Tarasenko , A. V. Suslov , O. A. Mironov , M. Kummer , H. von Känel

It is demonstrated by SQUID magnetization measurements that (Ga,Mn)As films can exhibit rich characteristics of magnetic anisotropy depending not only to the epitaxial strain but being strongly influenced by the hole and Mn concentration,…

We demonstrate tuning of the Fermi contour anisotropy of two-dimensional (2D) holes in a symmetric GaAs (001) quantum well via the application of in-plane strain. The ballistic transport of high-mobility hole carriers allows us to measure…

Mesoscale and Nanoscale Physics · Physics 2017-07-10 Insun Jo , M. A. Mueed , L. N. Pfeiffer , K. W. West , K. W. Baldwin , R. Winkler , Medini Padmanabhan , M. Shayegan

We have studied the effect of an in-plane magnetic field B on a one-dimensional hole system in the ballistic regime created by surface gate confinement. We observed clearly the lifting of the spin degeneracy due to the Zeeman effect on the…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 R. Danneau , O. Klochan , W. R. Clarke , L. H. Ho , A. P. Micolich , M. Y. Simmons , A. R. Hamilton , M. Pepper , D. A. Ritchie , U. Zuelicke

Hole-spin qubits in planar Ge/SiGe heterostructures have attracted significant attention in recent years owing to their favorable electrical characteristics and prolonged coherence times. However, the strong spin-orbit interaction also…

Mesoscale and Nanoscale Physics · Physics 2026-02-26 R. K. L. Colmenar , Arthur Lin , Omadillo Abdurazakov , Yun-Pil Shim , Garnett W. Bryant , Charles Tahan

We present a method for precisely measuring the tunnel splitting in single-molecule magnets using electron-spin resonance, and use these measurements to precisely and independently determine the underlying transverse anisotropy parameter,…

Mesoscale and Nanoscale Physics · Physics 2016-12-13 Charles A. Collett , Rafael A. Allão Cassaro , Jonathan R. Friedman