Effect of $\mathrm{Fe}$ concentration on the Urbach edge of optical absorption of $a=\mathrm{CdGeAs}_{2}\langle \mathrm{Fe}\rangle$ near the structural resonances

V. D. Okunev

O O Galkin Donetsk Institute for Physics and Engineering, National Academy of Sciences of Ukraine

UDC: 539.213:53.082.5

Received: 02.12.1991

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