📈Measured raw data, as well as our Fullprof refinement, are again added to our GitHub so feel free to check our work for mistakes. #opendata #lk99

🔬Successful growth of Copper phosphide confirmed. Rietveld analysis uncovered excess Cu in the powder – around 20%. Potential P volatility during tube filling or high-vac pumping might cause this. Nevertheless, we proceed as planned🧪, given the excess Cu in the final product.

🔬Another #progressreport update: Our latest batch of Cu3P is out of the furnace! A quality check is underway before we move forward. We'll share an XRD spectrum tomorrow. Stay tuned as we gear up again for the final step: the baking of Cu3P and Lanarkite. 🧪 #LK99 #OpenScience

🧪And of course we're not done yet! Tomorrow, we'll be back at it, continuing with the synthesis process of #LK99. Stay tuned for the next update as we make progress. Thank you for your support along this journey! 🚀🌟 #OpenScience #ResearchUpdate #StayInformed #OpenData.

🎉Celebrating 10k followers! We are a physics department at Charles University, one of Europe's oldest universities. With ~50 researchers, we dive into the worlds of magnetism&superconductivity!🔬Our experimental facilities are proudly run by MGML – 🇨🇿 open access infrastructure.

📝Yesterday, we discovered an error in the weighting of elements for Cu3P. 🧪Simple calculations can be tricky, but there is a simple solution!🐍Utilize the python package periodictable for a straightforward approach.💡See our procedure on Google Colab:

4/4 🧐 Analyzing our past post, we couldn't help but chuckle at the realization that there's much more phosphorous than copper😂. Check it out: .😄Even our followers didn't spot it! 😅.

3/4📝A humbling admission: a mistake in our laboratory logbook led to mixing the first powders in the wrong ratio🤦 Such hiccups are part of the scientific journey but rarely reported. Nevertheless, the correct mixture is now in the furnace and we will continue our #LK99 attempt.

2/4 🔍Through a thorough search in the Pearson database, we confirmed the second unknown phase as Cu2P7. ✨Detailed Fullprof refinement unveiled a weight ratio of 5.48:1 (Cu2P7:CuP2). It seems like the elements were in ratio 1:3 and not 3:1 for Cu:P 🤔

1/4🌟Incredible teamwork! 🤝🔬 @Yifan_Lv nailed it with precise data plotting, while @Gilad02736300 spotted that our powder isn't Cu3P. 👏 Later, @TheLushMeadow & @AK1MARU__ discovered the presence of CuP2 and an intriguing unknown phase.🧩 Collaborative science at its finest!

The XRD pattern is corrected for geometrical factors, we used Cu X-ray tube with wavelengths 1.540562 Å and 1.544390 Å (ratio 0.5). Feel free to pull request your results to our repository 🙏.

🌟Remember yesterday's mix of Cu3P & Lanarkite? Of course, we took XRD patterns of both! But no one analyzed it yet! 🤔Help us out! The Cu3P structure is known & available on Crystallography open database Our XRD pattern on GitHub:

🔬📢 Patience is key in science! ⏳🚀 While we know you're eager for new results, today we'd like to share an important lesson: rushing can compromise the process. Quality science takes time! 🌟🔍 #PatienceInScience #MeticulousApproach #QualityResearch.

🔥🔬 Exciting moment! We're taking the samples out of the furnace after 6 hours at 925°C. 🌡️✨ Check out our video capturing our first try to get #LK99 substance. 🔍 #ResearchUpdate #SampleAnalysis

2/2 ⏰Stay tuned for updates between 8-9am CET. We welcome your suggestions for the optimal cooling rate - let's collaborate on this thrilling journey! 🤝🚀 #ResearchDedication #ScienceUpdate #CollaborativeScience

🧵1/2 👀Witnessing the incredible dedication of Ross Colman, head of our magnetism group! 💪At Friday 11pm, he sealed 8 ampules with diverse Lanarkite and Cu3P mixtures. Now, Europe rests as our automated furnace works its magic. Results coming soon!⏳🌄 #openscience

Copper phosphide (Cu3P) & Lanarkite (Pb2SO5)💎 are out of the furnace. Powders look promising! 💎Tomorrow morning at 8 am CET, our very own #LK99 crystals will be ready. We're mixing them in various ratios and baking them overnight. #StayTuned for tomorrow's big reveal! 🌟🚀

2/2⏳ Several hours of pumping with a turbomolecular pump brought the pressure below 10^-6 mbar inside the tubes. The quartz ampules were then sealed using a special torch and put into the furnace! 🧁Yesterday's efforts are bearing fruit, in just an hour, we'll unveil the result.

🧵1/2🔥Time for some heated action! 🌡️Since yesterday, we're synthesizing Lanarkite under the vacuum. Lead Sulfate (white powder) & Lead Oxide (orange powder) are mixed, pressed into pellets, and sealed in quartz tubes🧪. How to make a good vacuum? 💡 #LanarkiteSynthesis #LK99

4/4 📈Refinement results: Lattice parameters 8.465(1), 5.396(1), 6.952(1), affirming the right structure. A few unindexed peaks around 2θ=30° hint at impurity - but a small amount! We cherish #openscience and #datasharing - check our GitHub for raw data:🔗