Determination of the Orbital Polarization in YTiO3 by Using Soft X-Ray Linear Dichroism | Zendy

F. Iga | Zendy; Masami Tsubota | Zendy; Masahiro Sawada | Zendy; Haoliang Huang | Zendy; S. Kura | Zendy; Masaki Takemura | Zendy; Koichiro Yaji | Zendy; M. Nagira | Zendy; A. Kimura | Zendy; Taeho Jo | Zendy; T. Takabatake | Zendy; H. Namatame | Zendy; M. Taniguchi | Zendy

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Determination of the Orbital Polarization in YTiO3 by Using Soft X-Ray Linear Dichroism

Author(s) -

F. Iga,

Masami Tsubota,

Masahiro Sawada,

Haoliang Huang,

S. Kura,

Masaki Takemura,

Koichiro Yaji,

M. Nagira,

A. Kimura,

Taeho Jo,

T. Takabatake,

H. Namatame,

M. Taniguchi

Publication year - 2004

Publication title -

physical review letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.688

H-Index - 673

eISSN - 1079-7114

pISSN - 0031-9007

DOI - 10.1103/physrevlett.93.257207

Subject(s) - linear dichroism , dichroism , multiplet , dichroic glass , degenerate energy levels , physics , polarization (electrochemistry) , spectral line , linear polarization , ferromagnetism , condensed matter physics , atomic physics , molecular physics , crystallography , optics , chemistry , circular dichroism , quantum mechanics , laser

We report measurements of linear dichroism in x-ray absorption at Ti L(2,3) edges of a Mott-insulating ferromagnet YTiO3, where orbital ordering occurs in the triply degenerate Ti 3d t(2g) states. Dichroic spectra and their integrated intensities are obtained for the incident electric field with polarizations parallel to a, b, and c axes. The comparison of the spectra with atomic multiplet calculations removes the ambiguity about the orbital polarization, i.e., the relative weights of |xy>, |yz>, and |zx> orbits, which are crucial for the origin of ferromagnetism. The result is consistent with the previous analysis of nuclear magnetic resonance in the Mizokawa-Fujimori scheme.

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