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18 Apr 1988

Volume 52, Issue 16, pp. 1285-1363

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Magnetic hardening of Nd2Co14B

C. D. Fuerst and J. F. Herbst

Appl. Phys. Lett. 52, 1358 (1988); http://dx.doi.org/10.1063/1.99687 (3 pages) | Cited 9 times

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We have investigated the room‐temperature magnetic properties of a series of neodymium‐cobalt‐boron alloys rapidly solidified by melt spinning. Depending on the starting composition, intrinsic coercivities and energy products as large as 10.2 kOe and 5.2 MGOe, respectively, have been achieved in ribbons whose principal constituent is crystalline Nd2Co14B. Our work represents the first successful effort to magnetically harden that compound.
Show PACS
75.30.Cr Saturation moments and magnetic susceptibilities
75.50.Cc Other ferromagnetic metals and alloys
75.60.Ej Magnetization curves, hysteresis, Barkhausen and related effects
75.50.Vv High coercivity materials

Sublinear current response in high‐efficiency, high‐resistivity silicon solar cells: Theory and experiment

Martin A. Green, Jianhua Zhao, and David L. King

Appl. Phys. Lett. 52, 1361 (1988); http://dx.doi.org/10.1063/1.99118 (3 pages) | Cited 1 time

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Improvements in the efficiency of high‐resistivity silicon concentrator solar cells with conventional top and rear contacts are reported. These improvements have been obtained despite a substantially sublinear increase in cell short‐circuit current with increasing solar concentration. The theory of operation of cells of this type under short circuit is outlined. This theory accurately describes the observed current sublinearity and indicates how it can be eliminated.
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84.60.Jt Photoelectric conversion
72.40.+w Photoconduction and photovoltaic effects
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