Aula 7.1 - Vibrações em uma cadeia diatômica

Na aula passada, vimos como obter os modos normais de vibração para uma cadeia atômica unidimensional. Vimos que a periodicidade da rede produz efeitos físicos super importante, como o aliasing. No entanto, os sólidos muitas vezes não são formados por um único tipo de átomo. Neste vídeo veremos como lidar com uma cadeia unidimensional formada por dois tipos de átomos. Neste caso, há o surgimento de duas bandas de freqüências possíveis para os modos normais. ---------------------------------------------- Estas vídeoaulas são parte do curso de Física da Matéria Condensada do Instituto de Física da UFF. Para mais detalhes sobre o curso consultar a página https://cursos.if.uff.br/!estadosolid... ---------------------------------------------- As demais vídeos aulas deste curso podem ser encontradas na playlist    • Aulas de Física da Matéria Condensada (Gra...  

Aula 7.2 - Fônons óticos e acústicos
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Aula 7.2 - Fônons óticos e acústicos

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We finally understood orbital shapes intuitively! (My mind is blown)

OMC44 - Sólidos I, Einstein, Debye e muitos fônons.
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OMC44 - Sólidos I, Einstein, Debye e muitos fônons.

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England  – Ghana Highlights | Gruppe L, FIFA WM 2026 | sportstudio

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Trump Sends Vance to Concede to Iran & Reflecting Pool Is Filled with Corruption | The Daily Show

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Divergence and curl: The language of Maxwell's equations, fluid flow, and more

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How Proctor’s texts in Karen Read lawsuit could free dangerous criminals

NERVOUS 12-Year-Old Who Can Sing Without Opening Her Mouth Earns Mel B's GOLDEN BUZZER!
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NERVOUS 12-Year-Old Who Can Sing Without Opening Her Mouth Earns Mel B's GOLDEN BUZZER!

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Portugal  – Usbekistan Highlights | Gruppe K, FIFA WM 2026 | sportstudio

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But what is the Fourier Transform? A visual introduction.

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The amazing invention of a 65-year-old carpenter amazed engineers! Homemade woodworking tools.

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Data Analysis with Python: Part 5 of 6 - Visualization with Matplotlib and Seaborn (Live Course)

This open problem taught me what topology is
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This open problem taught me what topology is

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Brian Cox: The quantum roots of reality | Full Interview

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Princess Of Boogie Woogie Delights Everyone

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But what is quantum computing? (Grover's Algorithm)

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England vs. Ghana FIFA World Cup 2026 Highlights | Sportschau

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The Current Atomic Model [Mind Map] - Basic Principles of Quantum Mechanics

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Understanding Aerodynamic Lift

Maggie Haberman & Jonathan Swan - On “Regime Change” & Inside The Trump Presidency | The Daily Show
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Maggie Haberman & Jonathan Swan - On “Regime Change” & Inside The Trump Presidency | The Daily Show