How disorder affects the Berry-phase anomalous Hall conductivity: A reciprocal-space analysis

نویسندگان

  • Raffaello Bianco
  • Raffaele Resta
  • Ivo Souza
چکیده

Raffaello Bianco,1,2 Raffaele Resta,1,3 and Ivo Souza2,4 1Dipartimento di Fisica, Università di Trieste, 34127 Trieste, Italy 2Centro de Fı́sica de Materiales, Universidad del Paı́s Vasco, 20018 San Sebastián, Spain 3Donostia International Physics Center, 20018 San Sebastián, Spain 4Ikerbasque Foundation, 48013 Bilbao, Spain (Received 14 April 2014; revised manuscript received 16 August 2014; published 29 September 2014)

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Berry-phase effect in anomalous thermoelectric transport.

We develop a theory of the Berry-phase effect in anomalous transport in ferromagnets driven by statistical forces such as the gradient of temperature or chemical potential. Here a charge Hall current arises from the Berry-phase correction to the orbital magnetization rather than from the anomalous velocity, which does not exist in the absence of a mechanical force. A finite-temperature formula ...

متن کامل

First principles calculation of anomalous Hall conductivity in ferromagnetic bcc Fe.

We perform a first principles calculation of the anomalous Hall effect in ferromagnetic bcc Fe. Our theory identifies an intrinsic contribution to the anomalous Hall conductivity and relates it to the k-space Berry phase of occupied Bloch states. This dc conductivity has the same origin as the well-known magneto-optical effect, and our result accounts for experimental measurement on Fe crystals...

متن کامل

محاسبه ابتدا به ساکن انحنای بری و رسانایی ذاتی غیر عادی هال در مواد فرومغناطیس با استفاده از توابع وانیر بیشینه جایگزیده

 Electronic properties for bcc Fe and hcp Co in bulk state and also Fe-Co alloy were calculated by quantum calculation based on density functional theory and pseudopotential method. Combination of Wannier function and Berry phase theory was used for calculation of anomalous Hall conductivity in above structures. It was seen that split of band by the spin orbit interaction, lying on the Fermi le...

متن کامل

Optimizing the post-Wannier Berry-phase Code for Optical and Anomalous Hall Conductivities and Orbital Magnetization

WANNIER90 is a quantum-mechanics code for the computation of maximally localized Wannier functions, ballistic transport, thermoelectrics and Berry-phase derived properties – such as optical conductivity, orbital magnetization and anomalous Hall conductivity. In this whitepaper, we report on optimizations for WANNIER90 carried out in the course of the PRACE preparatory access project PA2231. Thr...

متن کامل

Anomalous Hall effect in ferromagnetic semiconductors.

We present a theory of the anomalous Hall effect in ferromagnetic (III, Mn)V semiconductors. Our theory relates the anomalous Hall conductance of a homogeneous ferromagnet to the Berry phase acquired by a quasiparticle wave function upon traversing closed paths on the spin-split Fermi surface. The quantitative agreement between our theory and experimental data in both (In, Mn)As and (Ga, Mn)As ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2014