“He painted several birds that are extinct now,” says Sartore, who has prints of Audubon’s Carolina parakeet and ivory-billed woodpecker in his home. Of that time, he says now, “I had a year at home to think.” He thought about John James Audubon, the ornithologist.
So Joel Sartore had no choice: With three kids ages 12, 9, and 2, he couldn’t travel for the stories that were the mainstay of his career. The cancer sentenced her to seven months of chemotherapy, six weeks of radiation treatments, and two operations. “He never wanted to change diapers or be a stay-at-home dad,” she says.īut in 2005, on the day before Thanksgiving, Kathy was diagnosed with breast cancer. His wife, Kathy, stayed in Lincoln, Nebraska, and took care of the kids. Buy Photo Ark books and merchandise here.įor years National Geographic photographer Joel Sartore worked far away from home-documenting the astonishing wildlife of Bolivia’s Madidi National Park or scrambling up the three tallest peaks in Great Britain or getting too close to grizzly bears in Alaska.
The episode airs this Sunday, October 14, at 7:30 p.m. For X = Mn we illustrate how interaction strength and lattice distortions can tune these systems between a Dirac semimetal, a Chern and a trivial Mott insulator.Watch Joel Sartore on the next edition of 60 Minutes and see what it takes to create the Photo Ark. Constraining the symmetry between the two triangular sublattices causes X = Mn, Co, and Ti to emerge as Chern insulators driven by SOC. Competition between local pseudocubic and global trigonal symmetry as well as the additional flexibility provided by the magnetic and spin degrees of freedom of 3 d ions lead to a broad array of distinctive broken-symmetry ground states not accessible for the (001)-growth direction, offering a platform to design two-dimensional electronic functionalities. Based on density functional theory calculations including strong interaction effects, we establish trends in the evolution of electronic states as a function of several control parameters: band filling, interaction strength, spin-orbit coupling (SOC), and lattice instabilities. Perovskite ( La X O 3 ) 2 / ( LaAlO 3 ) 4(111) superlattices with X spanning the entire 3 d transition-metal series combine the strongly correlated, multiorbital nature of electrons in transition-metal oxides with a honeycomb lattice as a key feature.
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