South Korea’s ‘Holy Grail’ Superconductor: Hype or Real Deal?

Rumors surrounding "LK 99," a purported room temperature superconductor, have circulated within both scientific and public circles. The claim asserts that "LK 99" is a material capable of exhibiting superconductivity at or near room temperature.
Share this STORY

What is (Room Temp.) Superconductivity

Let’s think of room temperature superconductivity like a magical water slide.

Imagine you have a water slide that’s so smooth and perfect that when you send a water droplet down it, it never slows down or gets stuck – it just keeps sliding smoothly from top to bottom. This is a bit like how electrons move through a superconductor, flowing without any resistance.

Now, the catch is that this amazing water slide only works when it’s super chilly, like if it’s freezing cold outside. If you try to use it on a warm, sunny day, the water droplets would get stuck, and the slide wouldn’t work as well.

Room temperature superconductivity is like finding a water slide that works just as magically on a warm, sunny day as it does on a cold one. It’s like discovering a way to make that perfect, resistance-free slide work even when it’s nice and cozy outside.

This would be like having electricity flow through materials without any resistance at temperatures we’re comfortable with, which could make our technology work super smoothly and efficiently, just like those water droplets gliding down the slide.

Traditional Superconductors

Now, the catch is that traditional superconductors only work at extremely cold temperatures, almost close to absolute zero, which is colder than anything you’d encounter on Earth.

But scientists have been on a quest to find materials that can become superconducting at higher, more practical temperatures, closer to what we experience every day.

Traditional superconductors are materials that exhibit superconductivity at very low temperatures, typically near absolute zero (-273.15°C or -459.67°F). Here are a few examples of traditional superconductors:

  1. Lead (Pb): Lead was one of the first materials to be discovered as a superconductor when cooled to very low temperatures. It becomes superconducting below around 7.2 Kelvin (-265.95°C or -446.71°F).
  2. Mercury (Hg): Mercury is another well-known superconductor that becomes superconducting below about 4.2 Kelvin (-268.95°C or -452.11°F).
  3. Niobium-Titanium (NbTi): This is a compound of niobium and titanium commonly used in making superconducting magnets for applications like MRI machines. It becomes superconducting at temperatures below about 9.2 Kelvin (-263.95°C or -443.11°F).
  4. Yttrium Barium Copper Oxide (YBCO): YBCO is a high-temperature superconductor, which means it can become superconducting at higher temperatures compared to the ones mentioned above. It starts to superconduct at around 90 Kelvin (-183.15°C or -297.67°F).

Remember, all of these materials exhibit superconductivity at temperatures that are much colder than what we experience in our daily lives. The search for room temperature superconductors is all about finding materials that can exhibit these special properties at more practical and comfortable temperatures.

Read more: The $400 B Semiconductor Cluster That Made Korea a Powerhouse

Magic: Room temperature Superconductivity

When we say “room temperature superconductivity,” we’re talking about discovering materials that can become superconductors at temperatures that are comfortable for us, around room temperature.

This would be a game-changer because it could lead to super-efficient electrical systems, like power lines that don’t lose any energy as heat, faster and more efficient electronic devices, and even more advanced technologies that we can’t even imagine yet.


Superconductors are materials that conduct electricity with virtually no resistance, which means that they can transmit electricity with almost zero energy loss. This makes them incredibly valuable for a wide range of applications, including:

  • Power transmission: Superconducting power lines could transmit electricity over long distances with much less energy loss than traditional power lines. This could lead to significant savings in energy costs and reduce greenhouse gas emissions.
  • Medical imaging: Superconducting magnets are used in MRI machines to create detailed images of the human body. Room-temperature superconductors could make MRI machines more affordable and accessible.
  • Transportation: Superconducting magnets could be used to levitate trains, which would be much faster and more efficient than traditional trains.
  • Quantum computers: Quantum computers are the next generation of computers that are capable of solving problems that are intractable for classical computers. Room-temperature superconductors could be used to build more powerful and efficient quantum computers.

The Enigma of “LK 99”: Separating Fact from Fiction

Rumors surrounding “LK 99,” a purported room temperature superconductor, have circulated within both scientific and public circles. The claim asserts that “LK 99” is a material capable of exhibiting superconductivity at or near room temperature.

In 2023, a team of scientists from South Korea claimed to have created a room-temperature superconductor. Their findings were published in a pre-print paper, which means that they have not yet been peer-reviewed. However, if their findings are confirmed, it would be a major breakthrough.

This tantalizing possibility has fueled excitement due to the potential transformative impact on technology and energy efficiency. However, it’s crucial to note that, no peer-reviewed research or verifiable scientific evidence has been presented to substantiate the existence of “LK 99” as a genuine room temperature superconductor.

Scientific Skepticism and Critical Thinking:

In the realm of scientific inquiry, evidence is paramount. Claims, especially those that challenge established understanding, must be supported by rigorous research, reproducibility, and validation by experts. The absence of these crucial elements has understandably led to skepticism within the scientific community regarding the validity of the “LK 99” claim.

Discovering room temperature superconductors poses significant challenges, including comprehending the complex underlying theories and identifying suitable materials to manifest the required properties. Given these obstacles, it’s no surprise that the scientific community exercises caution and critical thinking when assessing such bold claims.


While the notion of a room temperature superconductor like “LK 99” is undeniably captivating, it is essential to approach such claims with a balanced dose of skepticism. Researchers from around the world are actively engaged in the pursuit of room temperature superconductors, driven by the potential for groundbreaking advancements. However, until concrete data is presented and subjected to rigorous peer review, it would be premature to label “LK 99” as a true breakthrough.

The Importance of Evidence-Based Judgments: Scientific progress is built on a foundation of evidence, skepticism, and critical evaluation. The journey to uncover new phenomena and push the boundaries of knowledge demands meticulous scrutiny. Until the scientific community collectively validates the existence of “LK 99” through empirical data, it remains an unknown entity.

Share this STORY