Direct evidence of ferromagnetism without net magnetization observed by x-ray magnetic circular dichroism

نویسندگان

  • S. Qiao
  • A. Kimura
  • H. Adachi
  • K. Iori
  • K. Miyamoto
  • T. Xie
  • H. Namatame
  • M. Taniguchi
  • A. Tanaka
  • T. Muro
  • S. Imada
  • S. Suga
چکیده

S. Qiao,1,* A. Kimura,2,† H. Adachi,3 K. Iori,2 K. Miyamoto,2 T. Xie,2 H. Namatame,1 M. Taniguchi,1,2 A. Tanaka,4 T. Muro,5 S. Imada,6 and S. Suga6 1Hiroshima Synchrotron Radiation Center, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan 2Graduate School of Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan 3Institute of Materials Structure Science, KEK, Tsukuba, Ibaraki 305-0801, Japan 4ADSM, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8530, Japan 5Japan Synchrotron Radiation Research Institute, Sayo, Hyogo 679-5198, Japan 6Graduate School of Engineering Science, Osaka University, Osaka 560-8531, Japan (Received 14 July 2004; revised manuscript received 29 July 2004; published 26 October 2004)

برای دانلود 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

Titanium dxy ferromagnetism at the LaAlO3/SrTiO3 interface.

A number of recent transport and magnetization studies have shown signs of ferromagnetism in the LaAlO3/SrTiO3 heterostructure, an unexpected property with no bulk analogue in the constituent materials. However, no experiment thus far has provided direct information on the host of the magnetism. Here we report spectroscopic investigations of the magnetism using element-specific techniques, incl...

متن کامل

Room-temperature ferromagnetism of Cu-doped ZnO films probed by soft X-ray magnetic circular dichroism.

We report direct evidence of room-temperature ferromagnetic ordering in O-deficient ZnO:Cu films by using soft x-ray magnetic circular dichroism and x-ray absorption. Our measurements have revealed unambiguously two distinct features of Cu atoms associated with (i) magnetically ordered Cu ions present only in the oxygen-deficient samples and (ii) magnetically disordered regular Cu2+ ions presen...

متن کامل

Multi-frame acquisition scheme for efficient energy-dispersive X-ray magnetic circular dichroism in pulsed high magnetic fields at the Fe K-edge

Using a fast silicon strip detector, a multi-frame acquisition scheme was implemented to perform energy-dispersive X-ray magnetic circular dichroism at the iron K-edge in pulsed high magnetic fields. The acquisition scheme makes use of the entire field pulse. The quality of the signal obtained from samples of ferrimagnetic erbium iron garnet allows for quantitative evaluation of the signal ampl...

متن کامل

Ultrafast Magnetization Dynamics Studies using an X-ray Streak Camera

The spin dynamics of ferromagnetic thin films following an excitation by ultrashort 100-fs near-infrared laser pulses has recently received much attention. Here, a new approach is described using x-ray magnetic circular dichroism to investigate demagnetization and magnetization switching processes. In contrast to magneto-optical measurements, x-ray dichroism has the advantage of determining sep...

متن کامل

MFM and PEEM observation of micrometre-sized magnetic dot arrays fabricated by ion-microbeam irradiation in FeRh thin films

FeRh thin films were irradiated with a 10 MeV iodine ion microbeam to produce micrometre-scale ferromagnetic microstructures by modifying the local magnetic character from antiferromagnetism to ferromagnetism using ion-microbeam irradiation. Two-dimensional magnetic dot arrays of dimensions ∼2 µm × 4 µm as well as 10 µm × 10 µm were successfully produced on the FeRh surface, which was confirmed...

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

برای دانلود 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

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2004