Bi-SUBSTITUTED RARE EARTH IRON GARNET SINGLE CRYSTAL, METHOD OF MANUFACTURING THE SAME, AND OPTICAL DEVICE

• Main Authors: SHIROKI KENICHI, FUKUHARA TAKASHI, NARITA KENJI
• Format: Patent
• Language: English
• Published: 21.03.2013
• Subjects: CHEMISTRY; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F; INORGANIC CHEMISTRY; METALLURGY

Provided is a Bi-substituted rare earth iron garnet single crystal which has a composition of R3-xBixFe5-wAwO12, wherein R denotes one or more rare earth elements among Y, Eu, Gd, Ho, Yb, Lu, Nd, Tm, La, Sm, Dy, Er, Ce, and Pr while definitely including Gd, A denotes one or more elements among Ga, Al, In, Sc, Co, Ni, Cr, V, Ti, Si, Ge, Mg, Zn, Nb, Ta, Sn, Zr, Hf, Pt, Rh, Te, Os, Ce, and Lu, 0.7<x 1.5, and 0<w 1.5, does not contain Pb and contains Pt, and additionally contains M which denotes Mn or at least one Group 2 element, wherein a coefficient α is set to any value within a numerical range of 0.815±0.035 and (which means (α×[M])−[Pt]) is set from −0.40 atppm to 3.18 atppm.