Manuel Caudillo - Academia.edu (original) (raw)
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University of Puerto Rico Rio Piedras
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Papers by Manuel Caudillo
Physical Review B, 2006
The floating-zone method and high-pressure synthesis have been used to obtain the hexagonal and t... more The floating-zone method and high-pressure synthesis have been used to obtain the hexagonal and the perovskite RMnO 3 ͑R =Y, Ho, Er, Tm,Yb, Lu͒ compounds. We have refined the crystal structure and characterized the compounds with measurements of magnetic susceptibility ͑T͒ and thermal conductivity ͑T͒. The systematic change of ͑T͒ below T N found in all members of the hexagonal RMnO 3 family shows that some spin-independent bond-length fluctuation plays an important role in the suppression of ͑T͒ below T N as well as in the paramagnetic phase. The responsible soft vibrational mode is identified. In contrast, the perovskite RMnO 3 shows a phonon-like ͑T͒ below room temperature, but with an anomalously large critical scattering at T N . A phase diagram of transition temperatures versus the R 3+ -ion radius for both hexagonal and perovskite phases is also given.
Este curso de Java trata de ser una guía paso a paso, desde cero, para crear una aplicación de es... more Este curso de Java trata de ser una guía paso a paso, desde cero, para crear una aplicación de escritorio que se conecte al servidor de MySQL; está dirigido a quienes dominan los fundamentos de programación en algún otro lenguaje, que además tienen los rudimentos de las consultas a las bases de datos relacionales. A lo largo del curso se usan diversas librerías de la Java Estandar Edition tales como java.lang, java.awt, javax.swing y java.sql de las que se estudian, ejemplifican y aplican las clases esenciales.
Physical Review B, 2006
The floating-zone method and high-pressure synthesis have been used to obtain the hexagonal and t... more The floating-zone method and high-pressure synthesis have been used to obtain the hexagonal and the perovskite RMnO 3 ͑R =Y, Ho, Er, Tm,Yb, Lu͒ compounds. We have refined the crystal structure and characterized the compounds with measurements of magnetic susceptibility ͑T͒ and thermal conductivity ͑T͒. The systematic change of ͑T͒ below T N found in all members of the hexagonal RMnO 3 family shows that some spin-independent bond-length fluctuation plays an important role in the suppression of ͑T͒ below T N as well as in the paramagnetic phase. The responsible soft vibrational mode is identified. In contrast, the perovskite RMnO 3 shows a phonon-like ͑T͒ below room temperature, but with an anomalously large critical scattering at T N . A phase diagram of transition temperatures versus the R 3+ -ion radius for both hexagonal and perovskite phases is also given.
Este curso de Java trata de ser una guía paso a paso, desde cero, para crear una aplicación de es... more Este curso de Java trata de ser una guía paso a paso, desde cero, para crear una aplicación de escritorio que se conecte al servidor de MySQL; está dirigido a quienes dominan los fundamentos de programación en algún otro lenguaje, que además tienen los rudimentos de las consultas a las bases de datos relacionales. A lo largo del curso se usan diversas librerías de la Java Estandar Edition tales como java.lang, java.awt, javax.swing y java.sql de las que se estudian, ejemplifican y aplican las clases esenciales.