physics

Stephen Streiffer

Stephen Streiffer is a physics topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Stephen Streiffer rather than just read about it. In short: Stephen K. Streiffer (born 6 January 1966) is an American materials scientist who began serving as the director of Oak Ridge National Laboratory in 2023.

Key takeaways

Stephen Streiffer belongs to physics; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Stephen Streiffer to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Stephen Streiffer from memory before moving on to harder problems.

Reference excerpt

Stephen K. Streiffer (born 6 January 1966) is an American materials scientist who began serving as the director of Oak Ridge National Laboratory in 2023. Prior to this position, he served as interim director at SLAC National Accelerator Laboratory. Streiffer joined Stanford University in 2022 as vice present for SLAC National Accelerator Laboratory after 24 years at Argonne National Laboratory.

Early life Streiffer grew up in Baton Rouge, Louisiana. In 1987, he received his bachelor's degree in materials science and engineering from Rice University. In 1993, he completed his doctorate in materials science and engineering from Stanford University.

Career Streiffer began his career at North Carolina State University as a research assistant professor. In 1998, he moved to Argonne National Laboratory as a researcher in the Materials Science Division. He was awarded the status of Fellow by the American Physical Society in 2007, for "experimental studies of ferroelectric thin film physics, that have established the relationships between epitaxial strain, ferroelectric phase transition behavior and domain structure, and size effects, and for advancing the fundamental understanding of complex oxide thin film microstructure." After serving in various roles at Argonne, he became the associate laboratory director for photon sciences and director of the Advanced Photon Source in 2015. On July 1, 2020, he was named the Argonne National Laboratory deputy director for science and technology. From 2020 to 2022, he was also the co-director of the National Virtual Biotechnology, the United States Department of Energy's effort to combat COVID-19. In June 2022, he became Stanford University’s vice president for SLAC National Accelerator Laboratory. During the search for a permanent director of SLAC National Accelerator Laboratory, he served as interim lab director beginning in February 2023. In July 2023, Streiffer was announced as director of Oak Ridge National Laboratory beginning on October 16.

See also List of fellows of the American Physical Society (1998–2010)

References

Illustrations

Worked examples

Example 1 — a first encounter with Stephen Streiffer

Start with the simplest possible case. Write down what Stephen Streiffer claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In physics, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Stephen Streiffer before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Stephen Streiffer ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Stephen Streiffer

In research: Stephen Streiffer appears in physics research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Stephen Streiffer in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Stephen Streiffer is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1966 births, American physicist stubs, American physicists, so understanding it makes those chapters shorter.
In everyday life: Look for Stephen Streiffer outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Stephen Streiffer in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Stephen Streiffer means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Stephen Streiffer out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Stephen Streiffer in simple terms?

Stephen K. Streiffer (born 6 January 1966) is an American materials scientist who began serving as the director of Oak Ridge National Laboratory in 2023.

Why does Stephen Streiffer matter?

Because it connects several physics ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Stephen Streiffer?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Stephen Streiffer.