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Memorial Tributes Volume 23 (2021) / Chapter Skim
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L. ERIC CROSS
Pages 68-75

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From page 69...
... World War II temporarily interrupted his undergradu ate education and he worked for the British Admiralty on a program using high-frequency direction finding to track Adapted from a tribute posted on the PSU Materials Research Institute website (https://www.mri.psu.edu/mri/news/memory-l-eric-cross)
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From page 70...
... His pioneering work spanned the application of ferroelectrics in bulk ceramics, ­composites, single crystals, multilayer technology, and thin films. He also developed an early model for the grain size effect on the ­dielectric properties of BaTiO3 and studied improper ferro electric ­materials such as gadolinium molybdate.
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From page 71...
... This work is still widely used and cited.1 His drive to improve means of measuring strain and electromechanical coupling under a wide variety of temperature, frequency, and field conditions led to the development of numerous new measurement methods, including the use of a double beam laser interferometer. From 1990 to 2014 he coauthored papers identifying the origin of bridging phases near morphotropic phase ­boundaries in ferroelectric solid solutions, contributed to the understanding of domain-engineered piezoelectric single crystals, designed new piezoelectric transducers and magnetoelectric com­posites, solidified understanding of domain wall contributions to the nonlinear behavior of ferroelectrics, and was one of the first to exploit ferroelectric thin films for piezoelectrics in micro­electromechanical systems (MEMS)
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From page 72...
... His understanding of ferroelectric phases and their domain contribution in piezoelectric ceramics enabled highly sensitive underwater sonar devices and medical ultrasound imaging. His group was one of the pioneers in the fabrication of ferroelectric materials in thin film form to enable the field of piezoelectric MEMS.
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From page 73...
... Professor Cross was honored by many professional organizations. In addition to his election as an NAE member, he was a fellow of the Materials Research Society, American Physical Society, Optical Society of America, American Ceramics Society, and Institute of Electrical and Electronics Engineers.
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From page 74...
... Their son Peter died in 2004 and is survived by his wife, Pam. The scholarship, passion, and personality of Professor Cross can be appreciated in a 2011 interview posted at IEEE's Engineering and Technology History Wiki (http://ethw.org/ Oral-History:L._Eric_Cross)
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Key Terms

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  • thin films
  • penn state
  • single crystals
  • ferroelectric materials

  • medical ultrasound
  • double beam
  • piezoelectric transducers
  • morphotropic phase
  • determined quantitatively

  • psu materials
  • developed key
  • enabled highly
  • imaging transducers
  • tribute posted

  • leadership positions
  • film form
  • field conditions
  • eventually led
  • electrooptic applications

  • domain contribution
  • measuring strain
  • western reserve
  • appreciate input
  • measurement methods

  • ideas freely
  • sadly missed
  • heights home
  • peacefully december
  • major ferroelectric


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